DE2265015A1 - TEXT PROCESSING SYSTEM I - Google Patents

Description

PATENT LAWYERS

BERLIN DAHLEM 33 - POD BIELSKI ALLEE 6B 8 MUNICH 22 WIDENMAYERSTRASSE 49

. C. Olivetti & C, S.p.A. BERLIN: DIPL-ING R. MÜLLER-BORNER

MUNICH: DIPL.-ING. HANS-H WEY

^{25 761} Berlin, May 28, 1975

Word processing system

The present invention relates to a word processing system, consisting of a manually operated input device including devices for inputting text information and a text adjustment signal (character "ο" in the 6th cell of the block), a memory device for storing and reading the information on a Recording medium, a printing device which is controlled by the input device for printing the inputted text information in different lines intended for characters, each character having a thickness of at least one thickness element, and a manually operable device for limiting a predetermined line length which is a total of
Corresponds to the thickness elements of the text to be printed.

In particular, the invention relates to the possibility of a text recorded on a recording medium in an adjusted
Print form so that the lines on the right edge are together

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BERLIN- TELEFON (030) 8 31 20 88 MUNICH: TELEPHONE (089) 22 55 85

cursing. This possibility is very useful for the operator because it reads a text without regard to the correct Can record the edge.

This facility can also be used to change the format of a text while it is being printed. More precisely: During the recording mode, a text having, for example, 50 characters in the lines can be used recorded, which can then be automatically printed with, for example, 60 characters in the lines.

A word processing system (US Pat. No. 3,297,124 corresponding to DT-OS 14 36 673) is known in which during printing the format of a text is previously recorded on a tape. The operator selects the new format, and the system automatically limits a "setting range" consisting of a preselected number of characters. If the system uses a spatial character or a hyphenated character in this area a carriage return is automatically identified by this system ordered. If there are no spatial characters or characters in the form of a hyphen in this area are found, the printing operation stops and the operator places a hyphen in the appropriate place of the word exceeding the setting range.

It is clear that this word processing system has the disadvantage that the adjustment of the lines only in the Limits of the "setting range" can occur, as a result of which the lines are not printed exactly in line with the right margin

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will. Only in the case where the three-dimensional characters or characters having the shape of a hyphen at the beginning of the setting area are found, the text is printed in an adjusted form.

Hence the technical problem is a word processing system to provide a pre-recorded text according to one of the operator selectable format to print in an adjusted form.

This technical problem is solved according to the invention by the system specified in claim 1, namely by a control unit which acts on the limiting device and on the adjustment signal (character "o") for controlling responsive to the storage means to read from the recording medium the text line by line and for each read Line to add at least one empty density element to at least one spatial space in the line in such a way that that the total number of thickness elements contained in the line in accordance with the predetermined line length is brought, whereby the lines consisting of characters are printed in an adjusted form.

Advantageous further developments of the invention are specified in the subclaims.

Details and advantages of the invention are given below with reference to two preferred ones shown in the drawings Embodiments described in more detail. Show it:

509844/0462

Fig. 1 is a block diagram of a printing system according to the Invention;

Fig. 2 is a block diagram of the central unit of the system of Fig. 1;

Fig. 3 is a block diagram of a timing circuit of the central processing unit of Fig. 2;

Fig. 4 is a diagram of the clock signals generated by the circuit of Fig. 1;

Fig. 5 is a circuit for generating the Arbeitszastände the central processing unit of FIG. 2 ·

FIGS. 6 to 12 correspond to the same number of working states of the central unit according to FIG Command circuits;

13 shows an input circuit of the central unit according to FIG. 2;

14 is a block diagram of a control unit for the input and output device of the system according to FIG. 1;

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15 shows a piece of magnetic tape of the system according to FIG. 1; Fig. 16 shows a detail of the magnetic tape of Fig. 15;

Figure 17 is a block diagram of the control unit of the apparatus for recording and reading the magnetic tape of the system according to Fig. 1;

Fig. 18 is a flow chart showing the operation of the control unit of Fig. 17;

19 and 20 are flow charts showing the entry of commands in the system according to FIG. 1;

Fig. 21 is a flow chart relating to recording of text;

22 is a diagram relating to the format changes of a text Flow chart;

Fig. 23 deals with the correction of a line of text related flowchart;

Fig. 24 is a flow chart relating to printing of text;

Fig. 25 is a flow chart relating to the left and right justification of a line of text;

509844/0462

The automatic printing system according to the invention contains a central unit 5 (Fig. 1) with a processing device 39 and a core memory 42. The central unit 5 is connected to a group of peripheral devices, too which include a typewriter 6, a magnetic tape memory 7 and an operating keypad 8. The typewriter 6 is connected to the central unit 5 via its own control device 9, which is the one from the typewriter 6 Can transmit incoming commands and data in a suitable form to the central unit 5 and vice versa.

The typewriter 6 is of known type and has an input / output device 12, which from the central unit Encode and decode 5 incoming characters and transfer the relevant commands into the typewriter and can be of any known type.

The typewriter 6 is the input / output device of the central unit 5. With the help of the typewriter 6 it is possible both to enter texts and to transfer them to the memory 42 of the central unit 5 as well as to select the processing operations to be carried out with the aid of the automatic printing system and, as will be explained in more detail below, to print the processed texts in their final form.

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The magnetic tape memory 7 also has its own Control unit 10 connected to the central unit 5 · The Memory 7 can hold all commands for controlling the amount of pressure included, which are selected from case to case and transferred to the memory 42 of the central unit 5, wherein it can also contain the magnetic recording of the texts entered on the typewriter 6 » These texts can be changed on a case-by-case basis by the operator can be removed and entered into the central unit 5 in order to be printed by the typewriter 6

The control keypad 8 is via another control device 11 connected to the central unit 5 and contains a multitude of tests, each assigned to a special group of commands in the system. As a result With the help of these buttons it is possible to select the appropriate Select a group of commands without using the typewriter 6

In a first period of time, the text to be processed is entered on the typewriter 6, which simultaneously has the ! jerk the actual text and its transmission the sin / output device 12 and the control device 9 in the Memory 42 of the central unit 5 causes · From here the text is transferred to the tape memory via the control device 10 7 transmitted to be recorded. Now the operator can add or add to this text Removing lines or paragraphs as well as changing the lung of the lines and correcting spelling mistakes Correct or modify · To do this effect, the operator chooses on the typewriter 6 or the control keypad 8 select the command group that corresponds to the intended change *

BATHROOM ORIGINAL - 8 -

509844 / 0A62

Each Bofehlsgruppe is duroh one of four, for example Letters marked on existing label so that it can be easily identified · As a result, this process the selected command group is transferred from the tape memory 7 to the memory 42 of the central unit 5 in order to take effect to become. As a result, the central processing unit 5 executing the selected commands processes the text and transmits then on the tape memory 7 · In this way the text is recorded in the desired form and then duroh the typewriter 6 to be printed

The processes described above are carried out by the central unit 5 performed by executing an instruction sequence stored in tape memory 7

The central unit 5 contains a timing circuit or a timer 20 (FIG. 2) which can supply the clock properties necessary for the flow of data within the actual central unit 5. The timer 20 essentially consists of an oscillator 21 (FIG. 3) which supplies a signal C with a frequency of 6 L / Hz (FIG. 4). This signal acts on a shift register formed from six flip-flop circuits F1 to F6 22 (Fig. 3), which carries out its entire working cycle in twelve periods of time each with a duration of 2λιθ . In order to obtain the necessary timing signals for the outputs of the six flip-flop circuits are coupled via gates F1 to F6 to each other, provide their outputs dl · clock signals for the central processing unit 5 ·

For example, in order to obtain a signal TS, the flip-flop circuit P1 is coupled to the flip-flop circuit P3. More precisely, the

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BATH ORIGINAL

direct output of the flip-flop circuit 3 with an output of an AND gate 24, while on the other hand the Output of the flip-flop circuit F1 to the other input of the gate 24 is applied · The output TS of the gate 24 is therefore at level "1" when the outputs of the flip-flop circuits F1 and F3 have the values 1 and 0, respectively. On the other hand, it is in the other cases at level "0" · It is thus clear that by appropriately coupling the outputs of the other flip-flop sons F1 to F6 all other clock signals according to Fig. 4 can be achieved «

The central processing unit 5 contains a register 30 (Fig. 2) with a length of three bits, which is made up of three flip-flop circuits composed. The register 30 ifct is provided with three inputs 30a, 30b and 30o, each of which is sent to the Typewriter 6 (FIG. 1), the external memory 7 or the control keypad 8 are connected to the register 30 (Fig. 2) is also provided with three outputs 31a, 31b and 31c which have an equal number of inputs for a logic circuit 31 which in a register 32 with a length of real bits the code a 8-bit characters can be entered by the daa peripheral device indicates which has excited the corresponding input 30a, 30b or 3Bc of register 30

More precisely, during the execution of a command by the central unit 5, a peripheral device 6, 7 or 8 can interrupt this command in order to transmit data or commands to the central unit 5. For this purpose, the peripheral device 6, 7 or 8 then energizes the corresponding input 30a, 30b or 30c of the register 30 and thus the input 31a, 31b or 31c of the logic circuit 31, which supplies the corresponding 8-bit characters.

In addition, two peripheral devices can _{simultaneously excite the respective inputs 31a, 31b c} and 31c, which logically

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Circuit 31 select the one from the two peripheral devices which has priority over the other and which, in accordance with a given priority command, provides a link of eight bits corresponding to this peripheral device as an error signal the logic circuit 31 essentially eU3 a logic circuit with three inputs and eight outputs The voltage values of the eight outputs form either the A combination of eight bits corresponding to each of the inputs 30a, 30b and 30o

The three inputs 31a, 31b and 31o also connect to the logic circuit 31 connected so that each of the inputs in a known manner can only cause the corresponding combination of eight bits if the input with the higher priority is at "O" level »For example, the input 31b can be used as an output the logic circuit 31 the associated combination of excite eight bits only when input 31a is at "0" level · This obviously has the consequence that input 31a has priority over input 31b · The same also applies to input 31c in comparison to input 31b.

As already mentioned, the outputs of the logic circuit 31 form just as many inputs for the register 32. The outputs of the Kc £ i3ter3 32 are via a channel 33 cn one Logical reset circuit 34 connected. The circuit 34 has three outputs 34a, 34b and 34o, which are each assigned to a combination of eight bits transmitted from the register 32 via the channel 33 into the circuit, so that the logic reset circuit 34 the output on a case-by-case basis which corresponds to the combination of eight bits present on channel 33

BATH ORIGINAL 5Q9844 / 0462 - ii -

Each of the outputs 34a, 34b and 34o is connected to a corresponding reset cord for the three flip-flop connections forming dns register 30, so that when one of these outputs is energized, the corresponding flip-flop connection of the register 30 is set to KuIl In this way, if two signals are present at the same time as input signals for the register 30, for example at the inputs 30a and 30b, the logic circuit 31 enters an 8-bit character into the register 32, which the peripheral device with HöLertsii priority rank, ie · 'the typewriter 6 assigned to the input 31a. The flop circuit of the register 30, ie the lip-jlop circuit connected to the Hi ng, ng 30a, is consequently set to KuIl. else remains after the connected to the upper-level peripheral device operations have been auegeführt that the peripheral device corresponding with a lower priority level flip-flop circuit of the register 30 energized d _e h · chaltung flip-flop L the connected to the input 30b. As a result, the corresponding 8-digit character is entered into register 32, and the processes described above are repeated, so that the peripheral devices are always taken into account by the central unit 5 in accordance with the order of priority given below.

The outputs of the register 32 are also via a channel 40 fn another register 41 is connected, which with the Register 32 corresponds completely and an input register of the core memory 42 forms »The one stored in register 41 Character is transmitted via a channel 43 to a counting circuit 44, the mode of operation of which is known

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BATH ORIGINAL

and the character entered into it through channel 43 can increase one unit at a time

The functions of the counter circuit 44 are in turn connected to the inputs of the register 32. In this way, the contents of register 41 is vercebrt by one unit as soon as the channel 40, a link is input from real bits x 7 / ie explained in more nriher, v / ill be made possible in that the cells of the memory 42 in which the actions or commands contained in the programs under development are accessible one after the other

The bits contained in the input register 41 are also transmitted in an address decoding circuit 45 of the memory 42. The AdrecGen decoding circuit 45 can select one of the cores of the memory 42 based on the combination of the eight bits in front of the register 41. The core memory 42 has a storage capacity of 1024 eight-bit characters and is divided into four zones, called pages, each with a storage capacity of 256 characters. Each page is identified by a code number 0, 1, 2 and 3 a cell of the memory 42 requires ten bits, namely two for recognizing the page and eight for recognizing a cell in the area of the determined page

The memory 42 also contains the same core matrices arranged in eight levels * Each core matrix is formed from thirty-two rows and thirty-two columns for a total of 1024 cores, so that each matrix has a storage capacity of 1024 bits Conductor through: a write or blocking conductor, a read or scanning conductor and two addressing conductors

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or scanning conductors in series through all cores of each level, so that there are thus real scanning and eight blocking conductors gives. The two adreoaierleiter are on the other hand to each other arranged at right angles and intersect in a corresponding core. Each addressing conductor runs in Heine by all in the same row and the same column of the eight nuclei arranged in jiatricians · More precisely ▼ run those of the first row and the first column of a Eernir.atrix assigned addressing manager in series all cores of the eight levels arranged in the first row and in the first column of each matrix · consequently there are there are a total of thirty-two addressing conductor pairs

The decoding circuit 45 can be a logic circuit of any known type and is therefore not described in detail. The decoding circuit 45 has in particular eight input conductors to which the signals mentioned in register 42 are applied, and thirty-two devices which are connected in sequence to the thirty-two addressing conductor strips. Each core is selected when the two addressing conductors that cross each other in it are also excited · Each addressing conductor pair is excited in accordance with a special combination of the signals present on the eight input conductors of the decoding circuit 45 and thus selects a corresponding group of eight cores, which are brought into the 0 state ", TJm from one of the Peripheral devices 6, 7, 8 to feed incoming information into a core of the memory 42 selected in this way, these peripheral devices are connected to the input of a logical memory circuit 47 to be described in more detail below via a channel 46 formed from eight conductors. ler output of this logic circuit 47 wi rd formed from eight conductors forming a transmission channel 48. These conductors are connected to the corresponding blocking conductors from

509844/0462

each of the eight matrices of the memories 42 are connected.

via the blocking conductors that correspond to those cores into which an O is to be engraved becomes a river fed in such a way that no switching or change of state of the selected core is effected, while on the conductors corresponding to those cores in which a 1 inscribed «, the change of state is brought about in a known manner.

Accordingly, the logic circuit 47 leads to the reading of the The information recorded in the cores is sent to the addressing conductor pair with an offset from the strobe supplied during writing Current to, so dr.D only a switch in the cores takes place in which a 0 was recorded. As a result, an induced voltage is only in the test conductors that run through one core, into your one O was recorded · The eight heads of department are about one AU3ganpskanal 49 of the memory 42 to an Auogongsregister 50 connected. He read into the memory 42 and recorded in the reception register 50 information have different meanings. She can also to data to be transmitted to the peripheral devices 6, 7, 8 or to memory addresses to be used afterwards or to data that are to be temporarily stored in order to then compared with other data stored in memory 42 or to other addresses of the memory 42, or to refer to codos of the commands sent by the central unit 5 are to be executed during the execution of a command sequence

For this purpose, the register 50 is via a channel 51 connected to the peripheral devices in order to be stored in the memory 42 transferred data to these devices. Paa Register 50 is also connected to the

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Register 41 connected to enter the next memory address to be used / ended. The register is 50 are also connected to an eight-bit register 57 via a channel 56, and those to be temporarily stored therein Enter dead. Eventually the register 50 is over connect a channel 58 to a further Aoht bit register 59, to enter the codes of the commands therein. The data to be temporarily stored in the register 57 In addition to register 50, you can also use register 32 kor..r.en. For this purpose the output of register 32 is connected to the input of register 57 via a channel 66

Dos register 59 is connected to an output channel 60 via an output channel 60 lecossieraehaltung 62 connected, the thirteen outlets 62- to 62-, has the same number as the number of commands used by the CPU 5 · The decoding circuit 62 is a logic circuit of the type described with reference to circuit 31

As will be explained in more detail below, each command is identified by an eight-bit code · The first four bits of the code distinguish one command from the rest z // twelve, while the second four bits form the so-called "address change", the meaning of which is given below is explained in more detail

The hold 62 excites that of the thirteen output conductors that is present through the channel 60 Four-digit code corresponds to the command expressed. The exits 62- to 62-, the decoding circuit 62 control a logic control device 63 »which will be described in due course v.'ise a series of in the following by the synbole CCX01 «... CCM27 supplies designated commands which the transfer

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Control the transmission of the data within the central unit 5. In detail, these commands operate in Piß. 2 through a circle dcrgeatellen gate circuits and thereby enable the transmission of the information along the transmission channel in which these channels are inserted, from one register to the other or from the memory 42 (Fig. 2) to one of the registers 50, 57 connected to it _t 59 and thus execute the relevant commands.

In Fig. 2, next to each gate circuit is its special command specified. For example, the command activates COXO1 a gate circuit 64 "which transmits the content of the Hegiaters 32 allowed via channel 40 in register 41

The register 59 is in two, each aua four flip-plop circuits formed parts divided. The first four flip-flops that determine the type of command become the first four bits of the code supplied to the commands · The outputs sue These flip-flops are caught in the can 60. The second four flip-flop connections of the The Eits forming the address change are fed to register 59. The outputs from these flip-flop circuits are combined in a further channel 61 »

The bits of the address change have different meanings depending on the type of command. to which a given address belongs · In addition, the bits of the address change can indicate that an address or a data value is to be increased by one unit.

Ib the first case mentioned are the bits of the address change

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on a channel 64 * and are used by a decoding circuit 65 of the same type as the circuit 62, which the peripheral device ßuf the ΒβρΛβ of one of its three outputs S5 * $ 65? » 65 * selects exciting content of the address change · In this way, the decoding circuit connects the register 50 via channel 51 with the selected peripheral device for the transmission of the data between the central unit 5 and the selected peripheral device «

Palis specify the bit of the address change a memory page, the gate circuit 121 is actuated by the logic controller 63, as a result of which the first two Bits dtr address change via a channel 70 to a register 71 with a length of two bits are supplied, which in this way is the address of the page of the memory saves the content of register 71 and that of the register 41 form a complete memory address, the As already discussed, is formed from ten Eits which determine the 1024 cells of the memory 42. The content out the registers 71 and 41 can be changed or taken over independently of one another, since the separately in the both registers 59 and 32 bits read in the registers, via the respective channels 70 and 40 · This possibility allows, for example, the in and data contained on the same page of the memory if kept constant of the contents of register 71 to address · The affliction of the page can be explained in more detail below can also be fed directly into the logic decoding circuit 45 via a channel 72 · Daa logic control device 63 can also be controlled by those in the register 59 bits of address identification that have been taken over and transmitted by it via a channel 75 are set A conductor 76 also connects the di $ logiseh® circuit 31 »it the logical control device 65 * On this knows about * carries 01 «logic circuit 31 ^ eisesal * w * e ?; sis f @ ri-

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pheriegerät 6, 7 »8 one one of the flip-flop circuits The register 30 causes an interruption, a signal on the conductor 76 The signal is then used, to the logic control device 63 for generating the to the to actuate commands belonging to the actual interruption

The operating state in which the central unit 5 is during the execution of a command is called the "machine state". Each machine state has a duration of 2 ais and is determined by the clock signal TS, the course of which is shown in FIG signals present at its inputs are generated which, as already mentioned, are characteristic of the individual commands. More precisely, the instructions are executed by the central processing unit 5 through the successive sequence of a plurality of machine states. In each state, the operations to be carried out by the central processing unit 5 are determined. For this purpose, the logic control device 63 contains two blocks 63A and 63B. The one in Pig. Block 63A, shown in detail in FIG. 5, determines the sequence of machine states by which the selected command is to be executed on the basis of the input signals transmitted by the puncturing decoder circuit 62. The block 63B shown in FIGS. 6 to 12 generates a sequence for each machine state of commands COIiOI to CO2i27 relating to the selected instruction.

In detail, the block 63A has as inputs the conductors 62- - 62- (Pig. 2) coming from the decoding circuit 62, each of which is assigned to one of the thirteen commands. In addition, the Elock 63A has the input from the wide row from flip-flop circuits dee register 59 and from the register 31 coming lines 75 and 76 as well

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a conductor 100 coming from the logical memory input circuit 47.Each Maochinen state is determined by the excitation of a corresponding output Ma - & G of a series of flip-flop circuits PA PG belonging to the block 63A Since each machine state has a duration of 2 / US, each of the flip-flop circuits FA-FG must remain energized for a period of 2 ais. In order to achieve this, the clock signal TS is passed into the block 63A daa, which excites the inputs of the flip-flop circuits FA-FG via the UKD circuits DA-DG. The outputs MA-MG of the flip-flop circuits FA-FG set the block 63B in such a way that the commands assigned to the individual instructions are generated in each machine state. In detail, each circuit shown in FIGS. 6 to 12, of which the block 63B is composed, is excited by a corresponding signal IiA - MG and furthermore set by the same input signals as for the block 6JA.

Since the need for time control of a number of commands C0U01 - C01I27 arises in the area of a machine status, clock signals TR, TI and TM (FIG. 4) generated by the time control circuit 20 (FIG. 3) are also assigned to the circuits of block 63B as inputs ·

The commands COMOI - CüL'27 generated by the block 63B of the logic control device 63 also act on the logic input circuit 47 (FIG. 2) of the memory 42. This logic circuit 47 also has two channels 80 and 81 with a length of eight bits each. The channel 80 comes from the register 50, while the channel 81 comes from the register 57. The logic circuit 47 also has as an input a channel 82 with a length of two bits, which comes from the register 71. The channels 80, 81 and 82 transfer the contents of the registers 50, 57 and 71 to the logic input circuit 47 so that they are therein

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in accordance with the corresponding, through dna logical Control unit 63 generated commands COl'01 - C0L.27 can be processed · The results of these processing operations represented by a combination of eight bits are transmitted via the output channel 48 of the duroh The address contained in the address register 41 is supplied to certain cells of the memory 42

More specifically, the logic circuit 47 simply transmits the data present at their inputs on the output channel 48, if one of the commands COiäO3, COMH and C0Ü17 on the circuit acts. The command C0i: 03 has an effect a gate circuit 85 (Pig * 13), as a result of which those coming from the register 50 and present on the channel 80 Bits are transmitted on channel 48. Hey on the two gate connections 86 and 87 erroneous commands C0IZ14 and C0U17 determine the transmission of the on the channels 81 and 46 bits present in each case on output channel 48. In this way, the bits in register 57 (Pig. 2) and the lines coming from one of the peripheral devices 6, 7, 8 are fed into the memory 42, without being processed.

On the other hand, when the E command C0M06 acts on the logic circuit 47 the character present on the input channel 80 from a counting circuit 88 (FIG. 13) by one Unit multiplied and then transmitted to output channel 48 via a gate circuit 89. When the command generates C0M19 becomes, the eight present on the input channel 81 become Bits passed into an exchange circuit 90, which the first four bits with the second four in well known Wise exchanged The new character obtained in this way is via a gate circuit 91 in the output 48 transferred

509844/0462

The logic circuit 47 (Pig * 2) ira.m also der. Compare the content of the register 50 with the content of the register 57. More specifically, soferü c .- :: = I ^ ie ^ l COL-120 is present, a known Verglc-actuated icLiaBchaltung 93 (Pig x 13), wherein it from the contents of registers 50 and 57, the Lier registers channels 80 and 81, compares with one another. The comparison made by the connection 93 is indicative of the equality or inequality of the items present in the two. Hegist em 50 and 57. The result of this comparison is through a bit S generated by the comparison circuit 93 and supplied via a conductor 95 is shown · read Eit is equal to 1 "if the characters present in the two registers 50 and 57 are the same" and equal to 0 if they are different "

Bit E is transferred to a register 96 (Fig.2) with a length of one bit via conductor 25. eiiißeleaen · The contents of the register 96 can be entered in a siit . Corresponding other register 97 read in when the Efei-eäi C-Zi'.2S is generated Conversely, the command C0i £ 13 generates the reverse transmission Sas Eii E keiiC also via the conductor 100 while the logic control unit 63 is in operation require the execution of special commands

Also, if the command QOIiZi is pre-3 &, a UI.'L circuit 92 (Pig. 13) carries out the logic UK1-7 link between the eight bits present on each of the input channels SO and 81 .is this process is made up of an eight-page sequence: .en is formed "which is transmitted to the A-sgAnPsktirial 48 via its gate circuit 93 e If, on the other hand, the command COM ^;" - ^ m ^ dvi .; '.? .- ? -, for *: - ;;, : λ. Circuit 94 die
see the

<) ty _

which Eits from. As is known, the result of this logical operation is 1 if both bits3 are different, and 0 if both bits are the same . This iirgebnia is then transmitted to the Auaganga channel 48 via a gate circuit 99.

As already mentioned, ^E: intlicbe, the Eetrieb the central unit 5 adjusting command groups "nor nlher recorded in hereinafter to be described link in dea magnetic tape storage 7 (Fig x 1) JDanit this Bsfenlagrup; s can be executed by the central unit 5, nuts eie individually p.ua this memory 7 in the core memory 42 (Fig. 2) are transferred. Thereafter, the commands forming the selected group are routed one after the other by the central processing unit. To transfer the command groups from the "afnetapeicher 7 to the core memory 42, a special command group called" initial command group "is used consists of 64 characters and is also recorded in the external memory 7 at two locations predetermined by the magnetic tape.

The control unit 10 of the memory 7 can recognize the two addresses in which the initial command group is recorded, as will be described below transfer of the "Req aa ^ SBEF ehl sj, ru ppe ^w in the following t / _e else a Normalenveioe befind the central unit t 5 in Kuhezu3t3nd, ao that Nlle their Heilster on l.'ull provided are. .Venn dns time Control Module 20 ( Pig »2) generates the signal TS, Jar Atu; ga.: 3 l '\ of the plip-plop circuit Pa via the U:; i> -2chBltur.g Ea'.i'is · 5} to the level 1 brought so that-3 r..i- Zenv-.eleinheiT · ', ■ is brought into state A »

Then a Ger applies to open the Toracnaltrung 64 (Pig 2) -

BATH ORIGINAL

the command COÜOI generating AND circuit 112 (FIG. 6) of the at time TS, blocks 63B energized the transmission of the Contents of the register 32 in the register 41 and thus in the decoding circuit 45. In addition, the Auagcng Ma immediately the command CO1'18 (? ig «16), which by opening dB * Gate circuit 113 (FIG. 2) transfers the contents of register 71 to circuit 45. The address OQOOOQCO of the 3 memory 42 - since all registers of the central unit 5 are set to zero - is then read into the decoding circuit 45 * The content of the corresponding cell is now transferred to the output register 50

The control unit 10 of the magnetic tape storage device has an incidental aspect 7 prepare the character to be transmitted to the central unit 5 selected and to be described in more detail below “Yeiee entered on input 46.

A UKD circuit 114 (Fig. 6) of block 63B is generated in turn a command CO2 £ 17, which the gate circuit 87 (? i ^. 13) of the circuit 47 opens and the transmission of the on the channel 46 present first character from the tape memory 7 in the cell of the Xern memory 42 causes their Address is given by the decoding circuit 45

At the time TH following the time period TS (FIG. 4) a USD circuit 115 (Fig. 6) of block 63B generates the refehl C0HÜ4, which opens a Toreo hold 116 (Fig. 2) and which increased by one unit eus of the numerical circuit 44 The content of register 41 in di-.ß register 32 transfers »to In this way the link 00000001 is read into the register, so that the address of the memory 42 increases

Because the central unit 5 controls the operation of the control device 10 of the memory 7 so that it is in the memory 42 selects the next character to be entered and enters the channel

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46 inputs. Then the same operations as described above are repeated so that the following information is recorded in cell 00000001 of memory 42. The sixty-four characters of the initial command group in the first sixty-four cells of the memory 42 are recorded on this v / ee. Since each machine state has a duration of ?. äxb, the entire transmission of the initial command group has a duration of 128 aib

When the content of register 32 reaches the binary value 64, nisst the plip-plop circuit with the place value 64 des Register 32 has the value 1 εη, oo that it generates a signal R64, dn3 an AND circuit 120 (FIG. 6) of block 63B energized · The UKD circuit 120 then generates a signal RBT, which resets a flip-flop circuit 35 (Fig. 2), so that its output BT assumes the V.'ert 0. To. at this point in time, the register 32 is opened by a signal R4 generated by an AND circuit 121 (FIG. 6) of the block 63B Set to zero because the signal ET of the flip-flop ^ caution is zero. At this point, eonit des The result achieved is that all the registers of the central processing unit 5 (FIG. 2) are set to cool and that the initial instruction group is recorded in the core memory 42 Group contains the commands that follow the commands can load into the memory 42.

All subsequent commands begin with the state A. However, the flip-flop circuit 35 is cleared for your E commands, i.e. its output BT has the value 0 ... 7enn now the commands C0M01 and 001518 (Fig. 6) are generated again, the one recorded in registers 32 and 71 is recorded The address of the cell of the memory 42 is transferred to the Eecodiersohaltung 45 (Fig. 2) · The content of this cell is read and then transferred to the output register 50 · As a result, the BT-O reads the memory 42 instead of

509844/0462

Since the reading of the core memory 42 is known to destroy information, the information taken from the memory cell selected must be rewritten. For this purpose a UUD-Pchiltung 123 of the block 63B (Tig. 6) excited by the signal BT generates the command COIdJ, which closes the gate circuit 8p (Fig. 13) of the logic circuit 47 and now the contents of the register 50 (Pig. 2) transfers to the same cell of memory 42 in which it was stored at time TIi The instruction CQU04 in turn transfers the contents of register 41, increased by one unit Y, to register 32

Now a Uli D circuit 122 of the blook 6313 (FIG. 6) controlled by the signal BT generates the Command CC: 'O5 at the time following time TS TR (Fig. 4). the gate circuit 124 (Fig. 2) The opening command transmits the dn3 first character of the command contents of register 50 in register 59 »so that during state A the first character of the command is read

Now an inverter (Pig. 5) controlled by the signal BI excites U ^ D- ¹ Johalter 124 de3 blocks 63A the flip-flop circuit PB at the time T3 via the AND circuit DB, so that the output i 'B of this flip-flop circuit is brought to level 1 · At the same time, the flip-flop circuit PA is reset, as a result of which the central unit 5 changes from state A to state B.

During state E, the instructions for all common commands COIiOI, CCÜ18 and C0U03 generated, the as already mentioned the transmission of the through the content of the register 32 determined content of the cell of the memory 42 into the output register 50 and the following

Write this content into the same cell of the memory 42 cause these operations in the course of the to-Btßndea B generate the reading of the second character of the command, since the address entered in register 32 is Course of Zuatandee A has been increased by one unit is.

During the state B, the block 63B also generates data relating to the individual instructions on the basis of the content of the register 59, which still contains the code of the instruction recoding circuit 62 which energizes the Aupgnn; * corresponding to the Eefenl expressed by the four input bits. V7ie yet n ^hereinafter discussed iher remains difrer AUB ^ ing required over the entire period for execution of the actual instruction energized so da3 it causes the generation of commands by the logic circuit 63 in the course of iiasohinenzustiinde generated by the block 63A ·

The execution of the individual commands is now carried out the central unit 5 described. There are thirteen e-commands for the execution any pro ^ nnna provided, and you can see from zv7ei or three characters of yes 5its are formed. T ^ s first character Each command is used for Marking the actual Ee-fehla used and has that Ponati

bo b1 b2 b3 b4 b5 bo b7

Tie four first eits bo - b3 represent the code of the command dnr, during the second four bits b4 - b7 the address change represent. lie commands are in terms of number of the signs, and which they are formed, essentially of two kinds.

BAO ORIGINAL

50984W046 2

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Tie commands of the first kind cind composed of three characters, of which dos erete the command “beotinirat while d. "S ZAeite and third characters are the addresses of the cells of the Kernspeiehera 42 determine the content of the The actual command should operate as follows: The content of these cells all operand is designated · In detail, the operand whose address is determined by the second character of the command becomes, as the first operand and the operand whose address is determined by the third character of the command, referred to as the second operand.

The second kind of commands are composed of two characters, from which the first orders the command, while d ^ s second character is the address of the operand's cell in dec memory 42 buatiir.nt. let be orders of the second kind denotes all external commands, since, as will be explained in more detail below, they refer to the transmission of Commands or information from the central unit 5 to one of the peripheral devices 6, 7 »8 connected to it or vice versa

The thirteen commands are related to their execution necessary machine condition divided into four groups, which are described in detail in the brook

The first group of commands includes the commands issued by the central unit 5 kit using the sequence of the five States A, B, C, D, B are executed. Tie to their execution necessary time therefore cheats 10yua.

! Read commands are: transfer (TR. \), exchange (SCA), comparison (C? R), logical product (AND) Exclusive-ODEH (Έ.Τ. OE), free transfer (TRL) and are based on the tables I and II on pages 54 and 55 are described separately in detail below «

B098U / 0A62 _{BAD 0RlGlNA} L

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1st transmission (IRA)

The transfer command identified by code 1000 causes the first operand to be transferred from the address specified by the second character of the command to the address determined by the third character. As already mentioned, the address of the cells of the memory 42 is such that each memory cell by the number of the page and by the number of the cell marked in this page is · In reality the commands eo are built up that all Addresses of the operands relating to the instructions of a single program in one and the same, exactly as the "Current page" designated page of the memory are · In addition, as will be explained in more detail below, during the execution of a program, reference can be made to operands or to instructions, their address to of "Side O" belongs «Therefore can be an operand or a Command belong either to the "current page" or to the "page 0" ·

The code relating to the memory page to which the operands of the instructions belong is indicated with bits b4 and b6 of the address change in the following way · If dos bit b4 »1, belongs to the one by the second character of the Command (address of the first operand) specific memory cell for the current page; if the bit b4 ■ 0, belongs the memory cell on page 0 if bit b6-1, the memory cell determined by the third character (address of the wide operand) belongs to the current page; if b6 «0, it belongs to page 0 ·

During the execution of a program, it may also be necessary after the execution of an instruction that the Memory address of the two operands to increase by one unit or not · This possibility is made possible by the expressed by bits b5 and b6 «if

509844/0462

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- 2Q -

Bit b5 «1, the address of the first operand is increased by one unit after the instruction has been executed; if b5 = »O, it remains unchanged · The same occurs with the address of the second operand if 17 »1 or b7 ■ 0 ·

As already mentioned, the code of the command TRA is read in the course of state A and via the register 59 (Fig. 2) fed to the decoding circuit 62 during the In state B, this circuit causes the code of the command to be decoded, while commands COMOI, C0M18 and C01C03 are generated that read the second character of the instruction, i.e. the address of the first operand. In accordance with the code of this instruction, the decoding circuit 62 energizes the output 62j (Figs. 2 and 7) and thus the output of an OR circuit 130 (Fig. 7) of block 63B.

If the bit b5 of the address change of the instruction has the value 1, that must be accepted in the register 50 (FIG. 2) second characters of the command, increased by one unit, are rewritten in the memory · In this Trap are the inputs of the AND circuit 131 (Fig. 7) of block 63B are all at level 1, so that circuit 131 generates command C0Ü06. This command opens the Gate circuit 89 (Fig. 13) of circuit 47, as a result of which the character contained in register 50 is transmitted the input channel 80 of the circuit 88 is supplied, the it increased by one unit; It is then transferred to the memory 42 via the output channel 48

7enn on the other hand bit b5 of the address change KuIl is, the output of AND circuit 131 (Fig. 7) is at zero level, as a result of which the command COMO6 is not generated «In the course of state B, now that a gate 300 of block 63B is now energized

509844/0462

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is the C0LI04 command generated at the time TR and opens the gate circuit 116 (Piss x 2), which, as already erörtertp the transmission of acquired from the register 41 and duroh, causes the Zählschßltung 44 by one unit increased address in ana register 32 · At the same point in time TR (Fig. 4) the output of a further UliD circuit 132 (Pig · 7) of block 63B is excited when the command C0LI15 is generated as a result. This command activates the gate circuit 146 '(Fig. 2), which causes the contents of register 50 to be transferred to register 57.

That is why during Zuatandee B reading the die Address of the second character representing the first operand of the instruction has been executed and this address has then been transferred to register 57.If bit b5 is equal to 1 is, this address is also honored as a unit has been rewritten in the memory

Now the transition of the central unit 5 takes place in the state C. For this purpose the outputs 62-, 62 _1Q , 62 ^ and 62-, (Pig. 5) of the decoder maintenance 62 olle are at the level 0, since only the output 62- corresponding to the instruction TRA is excited · Via the inverter circuits 134, these outputs excite the corresponding inputs of an AND circuit 133 of the block 63A. In addition, since the output 62 of the circuit 62 is also at zero port, the input 136 of an ODi.R-30. Circuit 137 of the block 63A is excited via an inverter 135 in this way the U:. 'I) circuit 133 of the block 63A is actuated, which in turn actuates the input 138 of a further AND circuit 139 of the block 63A -Plop circuit PB is connected, the AND circuit IC is energized at the point in time TS, as a result of which the Plip-Plop circuit FC sets the output UC to level 1

509844/0462 BAD original

- 31 -

represents · At the same time, the AND circuit DC sets the Flip-Plop-Ochnltung PB back to zero, as its result the central unit 5 thus changes from state B to state C.

State C is used to read the first operand This is because a UliD circuit 140 generates at time TS (Fig. 8) of block 63B the command C0M10 · This the gate circuit 14-1 (Pig. 2) of channel 55 causes the address of the first operand to be transmitted the register 50 in the address register 41 »

'7enn the address of the first operand for the current page of the register 42 belongs, since the bit b4 of the address change of the instruction TRA has the value 1, the input becomes ^ jang 142 of the AND circuit 143 (Pig. 8) energized. The entrance 144 of the circuit 143 is also excited via an inverter, since the output 62g of the decoding circuit 62 is at NuIl-Perel The AND circuit 143 consequently generates the E command C0ii18 which, as already mentioned, the transmission dea Contents of the page register 71 (Pig. 2) in the address decoding circuit 45 causes

on the other hand, bit b4 is at the Hull level the command C0M18 is not generated and no bit in the address decoding circuit 45 read in, ao that the selected memory page is page 0

At the same time, the content of the memory cell selected by the address of the first operand is read and the content is transferred to the output register 50. In addition, at the time TE (Pig. 4) an AND circuit 145 (Pig · 8) is opened, so that the command C0M15 is generated. This command, which opens the gate circuit 146 ¹ (Pig · 2), causes the first operand to be transmitted

509844/0462

- 32 -

eus register 50 in dns register 57 · Finally The command C0ii03 is generated by a further AND circuit 146 (FIG. θ) and controls the writing of the same information that has been extracted into the cell of the memory 42. In this way, in state C, the reading of the first operand executed, which is rewritten into the cell and transferred to register 57 «

Then the transition from the central unit 5 to the state D causes · Now, namely, since the output 62 ^ of the decoding circuit 62 has the 7ert 1, a 021: 2-3 circuit 147 (Pig. 5) of the block 63A and consequently the input 148 of an AND circuit 149 is energized of the AND circuit 149 by the plop-plop control PC is energized, the flip-flop circuit PD at the time TS excited via the AND circuit DD. At the same time. the AND circuit DD the flip-flop circuit FB to zero back, as a result of which the central unit 5 τοη the State C changes to state D

The state D is used to read the address of the cell into which the first operand is to be transferred. This is because at time TS (FIG. 4) a U * is generated. ^The D circuit 155 (Fig. 9) of the block 63B sends the command C01101 which, by opening the gate circuit 64 (Fig. 2), transfers the content of the register 32 to the register 41 · The content of the register 32 is C un during the Zuotcnde3 a unit has been increased, so that the address of the memory cell is read into the address register 41, which follows the one in which the content was read during the state C.

If dos bit b6 of the address change is 1, the current page is switched by the command C0U18 via a USD circuit 156 (Fig. 9) is selected. In this case the outputs are

5098AA / 0A62

- 33 -

62 ₁₂ and 62. «· * of the decoder maintenance 62 namely to zero level and excite the AND circuit 156 via two inverters together with dea bit b6 Into the address decoding circuit 45 · Since the content of the register 71 has not been changed during the preceding states, it determines the current page ·

If the bit b6 is equal to 0, the E command C0M18 not generated by the ILJD circuit 156 (Pig * 9), so that no bit is read into the address decoding storage 45 what causes the selection of page 0

At the same time, the reading takes place through the third character of the command, i.e. through the address of the cell in which the first operand is to be transferred, instead of the selected memory cell. This content is then put into the Output register 50 transferred. In addition, the command C0 :: 03 (Pig. 9) through the plip-plop circuit PD directly generates and causes the read address to be rewritten into the selected cell.

If the bit b7 of the address change is 1, it excites an on / '. Ang an AND circuit 157 (? Ig X 9) · Because the output ga 62 ^uf the 0 level is, and the other Hinging is energized , as a result of which the UaJD circuit 157 in turn energizes an OR circuit 158 and thus a UKD circuit 159. The UIiD circuit 159 then generates the command C0L ^r 06 which, as discussed above, sets the memory element 47 (Piß x 2) in such a way that the address extracted therefrom and increased by one unit is re-entered into the selected memory cell is written in · During state e D, an AND circuit 160 generates command C0M04 at time TE which,

509844/0462 _BAD original

As discussed above, causes the contents of register 32 (Fig. 2) to be increased by one unit.

Finally, at time TS (FIG. 2), an AND circuit is established DE (Fig. 5) energizes, which in turn controls the flip-plop circuit FE is excited immediately, as a result of which output ~ 3 is brought to level 1. The UI. "D circuit DE 3 also resets the flip-flop circuit FD to zero, as a result, the central unit 5 from the State D changes to state E »State E is used to transfer the into the register during state C 57 first operands temporarily stored to the cell of the memory 42 whose address has been read during the supply T3 becomes the command COLI1O through a Ui.D circuit

161 (Fig. 10) generates block 633 which, indea it on the gate circuit 141 (Fig. 2) acts on the transmission

that taken during state D and in the register 50 address read into register 41 causes

If bit b6 is equal to 1, a UI.'D circuit is generated

162 (FIG. 10) causes the command COIi 18, dfr, as already mentioned, the transmission of the contents of the page register 71 (TIg. 2) into the address decoding circuit 45. Since the output 62 _{1 of} the circuit is at level 1 in accordance with the transmission command, a UL: .Ii-I> chaltur.g 163 (Ii. 10) and BOcit an UKD circuit 164 is energized on this Otherwise, the command COU14 is generated which, while it acts on the memory device 47 (FIG According to Ds, the first operand is extracted from the cell during state E, which corresponds to the address determined by the E-wide character of the command read during state B.

509844 / Q462 BAD ORIGINAL

_ 35 _

speaks, transmitted to the cell that the by the during of the condition E nusread third characters starry Address corresponds to

At the time 13 (Pig. 2) following the operations described, the Plip-Plop circuit PE (? Ig. 5) excites the input 166 of a UNE- if there are no interruptions from one of the peripheral devices 6, 7, 8. 3chiltung 167. Its enier input 168 is excited via an inverter 169 by a signal INT indicating the interruption, since it has the value 0. The Aurg & ng 204 of the UXE circuit 167 in turn excites the Plip-Plop connection PA via the AND- ^ ch-iltung EA, as a result of which the central unit 5 changes from the state E to the state A, whereupon the execution of the next E command is initiated can be·

2. Exchange (SCA)

Eer Austeuschbefehl (SCa) is identified by the code 1010 and causes the transmission äea in the first operand read in by the second character in the cell identified by the third character, whereby the first four bits against the second four bits of the first operand can be exchanged · A change of address of this 3efehls has the same meaning as the address change of the Eefehls ΊΤια ·

The command SCA is recognized by the decoding circuit 62, which then generates a signal at the output 62g. The command is executed in a variant which completely corresponds to that in which the command TRA discussed above is executed. The only difference is this that during state E an AND circuit 175 (Pig. _{10) excited by the output 62 2} sends the command C0M19

509844/0462 ORIGINAL BATHROOM

- 36 -

generated. This "eiee" described in the above on the Storage device 47 causes effective command the transmission of the content of the register 57 (FIG. 2) in the selected saved · exchanging the two

Eit groups.

3. Comparison (C7R)

The comparison command (CFH) is identified by the code 1001 and causes the bit-by-bit comparison “wipe” first operand and the second operand, the result of which is expressed by the bit S which is in the register 96 (FIG. 2) of the central unit 5 "Dl" change of address of this command has the same meaning as dl Address change of the previous commands

The CFR command is recognized by circuit 62 which then on the Auocang 62, a signal generated · Ler command CTH is executed in the same way as the TRA command. The only difference is that the commands C0i! 03 and C0Ü20 are generated during Zuptrndee E will. The command C0U03 is now called by a ITr circuit 176 (Fig. 10) generates and effects the writing of the contents of the register 50, i.e. the writing of the second operand, into the PUSteT / selected memory cell. 2nd command C0Ü20 is ζυη side point TI (Fiß. 4) a UliU switch 177 (Fig. 10) generates and represents how already mentioned, the input circuit 47 (Fig. 2) • ο a, da3 between the contents of registers 50 and 57 a comparison is made and, if the content of the two Regieter is the same, bit E - 1 is entered in register 96

4 Logical Product (AKD)

The AND command is identified by the code 1111 and

5098'4 4/0462

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causes bit-wise dl · logical · UKD punlction «between the first operand and the «wide operand · Dl · Address change of this instruction has the same meaning as dl · Address change of the previous command

By command / HD it is recognized by the circuit 62 that the output 62 ^ tin signal is generated. This command is carried out in the same way as the command GIk *; the only difference is that during the state, the output 62 ^ fin · ULt-hold 178 (Fig. 10), which in turn generates the command 001121 » As already mentioned, the reader acts on the memory input circuit 47 in such a way that the logical ULD function is executed between the contents of registers 50 and 57. The result is represented by «in eight-bit characters The comparison is in turn transferred to In dl · Speieh «rc« ll «, in which the world operand was located · Dl · · is made possible by the fact that during the state ·· £ dl · address dea« wide operands In de «Äegister 4-1 is available ·

5. Exclusive ODEH (ORE)

The ORE command is identified by the code 1110 and te-.runs the exclusive OR function between the first operand and the second operand. The result of this operation is stored in the cell of the second operand stored in the memory 42 · With this command dl · address change also has the same meaning as dl · Address change of the previous commands *

The command ORE is recognized by the circuit 62, the dsrauf generates a signal at the output 62c and acts in same T.'eise as the Eefehl AHD. The only difference consists in the fact that during the state a E the output excites an AND circuit 179 (FIg * 10), which in turn controls the

509844/0462

BAD OR'.GINAL

- 38 -

Command CO If22 generated. As already mentioned, the command acts on the memory input terminal 47 · ο that the

ExcluaiT-ODZH operation is carried out "

6 free transmission (TRL)

The command free transfer (TRL) is identified by the code 1011 and causes the transfer of the operand does the dat tv? The fourth character is the learned cell in the cell designated by the third character. Any side of the store 42, on the other hand, do the command TEA, the side in which the transmission takes place is through bits b6 and b7 of the address change marked · If b6 ■ b7 * 0, the beatioate Adreaae xu by the third character belongs to side O ₁ while ei · if b6 · 0 and • 7 ■ 1 »tu side 1, if b6 ■ 1 and b7 - 0, tu Stitt 2 and, if b6 · b7 ■ 1, tu belongs to side J »The bits b4 and b5 of the address change have the same meaning« ie the bits b4 and b5 of the address change of the command TRA

The command TRL is recognized by the circuit 62, which then generates a signal at the output 62 ^, and is executed in the same way as the command IHA with the Auunohrae, since in state D the output 62 _{12 is} a 0DLR circuit 180 (? i * · 9), which in turn generates the command CCU27. This command, which acts on a gate circuit 185 (Pig. 2), transfers bits b6 and b7 of the address change, ie the address of the memory page on which the first operand is to be transmitted into the decoding circuit 45

The second group of ton commands includes commands that concern a constant which represents the first operand and is expressed by the second character of the instruction «These instructions are constant transfers (TBC), free constant transmission (TLC) and constant

50984A / 0462 - 39 -

rergleioh (CDC). The commands named are executed by the central unit 5 with the sequence of the states A, B, D, E. The time required for their execution is therefore 8 / us These commands are assigned to the outputs 62 ₁₀ , 62 ₁₅ or 62 _{n of} the deodising circuit 62

They are essentially carried out in the same way as the instructions (TRA), (THL) and (CFR), with the exception that the state C is not carried out · The in the states Operations carried out on A and B are considered to be irrevocable cit the operations carried out by the corresponding commands of the first group match second character read · Since the constant is now used during dea State * B is read «it is not necessary to execute state C, which on the other hand is used by the corresponding commands of the first group for the purpose of guessing Read operands into memory 42.

Since one of the outputs 62 ^ 0, 62-j ,, 62 ^ _{1 is} now always at level 1, the OR circuit 186 (FIG. 5) is energized, this circuit energizes the input 187 of a UKD circuit 18 ", w Its other input 189 is excited by the Plip-Plop circuit PB, as a result of which the UKD circuit 188 excites the flip-flop circuit? D via the UKD circuit DD at the time TS (Pig. 4) Uä "D circuit DD also resets the flip-flop circuit FB by acting on the corresponding return circuit to zero, so that an immediate change from state B to state D takes place *

509844/0462

1, constant transfer (TRC)

The constant transfer command (THC) is identified by the code 1100 and causes the constant printed out by the second character of the command to be transmitted to the cell determined by the third character of the command under the control of dna Eit b5 the address change can be increased by one unit or not. If b5 ■ 0 »the constant remains unchanged; if the Eit b5 ■ 1, the constant is increased by one unit. The memory address determined by the third character can also be increased by one unit under control of bit b7 of the address change or not, if VJ * 0, the address remains unchanged; if b7 »1, the address is increased by one unit.

It should be noted that dna bit b4 of the address change eteta Is zero and is not used · Therefore, the memory page to which the third character is assigned is used to determine The address expressed belongs to using bit b6 of address change · If b6 »0, the address belongs to page 0; if b6 ■ 1, all belongs to the current side ·

The command THC is recognized by the circuit 62, which generates a signal at the output 62 ^ q. As already mentioned, this signal causes the immediate transition of the Central unit 5 in state D. During this state, the same operations as those described in connection with the command TBA are carried out, i.e. the reading of the third character of commands. During the state S the constant is then transferred to the by the third Zelohen specific address as with «command TEA instead of ·

2 · Free constant transmission (TLC) The command free constant transmission (TLC) is through

509844/0462

- kl -

Code 0100 and causes the transmission of the by the second character in the constant determined by the third character definite address · The address change diecea commands has the same meaning as the Address change dc3 E command IRL »During the states A and E perform the same operations as those described for the TRC instruction; daa Leaen dee Code of command and constant

The command is recognized by the circuit 62, which responds to it A signal is generated at the output 62-t · *. As already mentioned, this signal causes the direct transfer of the central unit 5 from state B to state Γ. The third character is read during this state of the command as with the.TRL command · Then takes place during the At state E the transfer of the constant to the through the third character beating te address instead of the command TEA.

3 Consistent comparison (CDC)

The command to compare a constant (CDC) is through the code 1101 and causes the bit-wise comparison between the by the first operand and the constants expressed in the second operand. The result of this comparison is expressed by the bit E * 1, if both operands are the same, and by the bit E ■ 0 if they are different »This bit is put into the Register 96 of the central processing unit 5 (Pig * 2) entered.

The address change of the command CDO has the same meaning as the address changes of the command TIiC. The command CDC is recognized by the circuit 62, which then _{generates a signal at output 62 ^ 1} , as the result of which the transition of the central unit 5 from state B to

. _nn ο / / / η / ß O ^BAD ORIGINAL

5098A4 / 0462 - 42 -

State D takes place. During the 3ea state, the read of the second operands takes place as in the GFR command. Finally, during ana Zuatrmdea Ξ, a comparison takes place between the constant and the second operand.

The third group of commands includes the commands that are executed by the central unit 5 (Fi ₁ ? .. 2) with the aid of the sequence of states A, B and C. As a result, the time required for its execution is 6 / Us. These commands are: the character-from-peripheral device command (CUP), the character-nnch-peripheral device command (CaP) and the jump command (SAL).

! read commands have a single address and bind accordingly Rus formed two characters. read contains characters the location of the commands within the boundaries of the group Code and appropriate address change. Tas second character contains the memory address of the operand.

1. Character from peripheral device (Ql?)

By means of the character-from-peripherals command (C_?) Fck marked by the code 0110 and causes the transfer of the operand from the peripheral device determined by bits b6 and b7 of the address change to the second character bertir.r ^ The memory address "Dna bit b4 of the address" Een-An <! erur.g determines the memory page to which the address, which is determined by the second character, belongs. If b4 «0, the address belongs to page O; if b4 «1 , it belongs to the current page» V.'er.n cu2erden dna bit b5 ■ 0, the address remains unchanged after the command has been executed; if the bit b5 ■ 1 »the address is increased by one unit ·

During the state A, the command CDP is

BATH ORIGINAL

* ■ '" 5 098AA / 0462

tung detected 62 thereon at the output a signal ER 62g zcartf 'rtfihrei.d the state B is the second Zcicnen dea Tefenla as with the commands of the first and the second group is read. The second character of the command determines the cell of the memory 42 in which the character 6, 7 or 8 transmitted via bits b6 and b7 of the address change is to be recorded *

In the process, the central unit 5 changes from the state B to the state C, since the Ui.'D-Cc hai tu ng 139 of the block3 63A (- ^p iß · 5) is excited by the ODZH circuit 133, the Outputs 62g, 62 «, 62-q, ^ ² I-] ^{un <3} ^ 2.j, ^of circuit 62 are Hull. During the state C, the output C2 ₈ excites a Ui; D circuit 197 (-Piss. 8), which in turn generates the command C0 ^ 17, which in the memory input circuit 47 controls the transmission dea on channel 46 (Pig · 2) causes existing character in the cell of the memory 42, the address of which has been read during state B

The central unit 5 returns to output A after these operations. If the output 62g is recently at level 1, an ODZR circuit 198 (Fig. 5) is always excited is excited. In this case, the UlID-Hchaltung 200 excites an opened by the output 303 of the Plip-plop circuit PC UIJ D-Sc attitude 202 'Eer output 204 of the UXD-Sohaltung 202 energized in turn at the time TS (Pig x 4) the ylip- Plop circuit PA ₉ el «the result of which the central unit 5 changes from state C to state A«

2nd character after peripheral device (CA?)

The character-near peripheral device command (CAP) is defined by the

BATH ORIGINAL

509844/0462 "** ~

Cone 0111 and causes the transmission of the operand, the address of which is determined by the second character, in dna by the bits b6 and b7 of the address identifier. These bits have the same meaning as the corresponding bits of the CL? command. During the state A r / ild, this command is recognized by the circuit 62, which then generates a signal at the output 62.

read in state B zreite Zeiohen of commands indicates now the address dea character dap into the through Eite b6 and b7 of address / r.derur.g starry Peript? rie to throw £ erit Jtertr ^ ren. If this Iefe.-1 is also activated, the central unit 5 changes from state B to state C on the basis of the fact that the ODIS circuit 133 of block 63A (FIG. 2) is excited. During the addition C the reading of the character takes place, the address of which was kept during the addition, and at the same time its temporary storage in the register 50 (Pig. 2). In addition, the output 62g excites the UKD circuit 195 (? Ig. 8), which in turn generates the command CCI'.OS. This command is transmitted to the selected peripheral device in order to prepare it to receive the character transmitted from the central unit 5. After these operations, the central unit 5 returns to state A, as with the command CEP.

3rd jump (SAL)

The jump command (GAL) is identified by the code 0010 and enables a command to be passed over to another command even if these commands do not follow each other in the course of the program being executed. Pass the second character of commands SAL indicates the stored address of the next command to be executed by the central unit 5

BATH ORIGINAL 5098 44/0462

The same operations as for the previous commands have been described, are also v / c-during the circumstances A and B executed for instruction 3AL left bits b6 and b7 of the address change, on the other hand, determine the Page to which the command indicated by the second character of the command Cell belongs, as with the instructions TRL and TLC · The first character is now in this memory cell then contain commands to be executed.

Xer jump can be conditional or unconditional. For example If a comparison is carried out using the CDG command, the result is stored in dos in dos register 96 (i'ig * 2) of the central unit 5 expressed bit E. The command SaL can then either, depending on the particular arrangement of the programs being executed by the bit S »O or by the bit E ■ 1 a.

The value of the bit E, which determines the execution of the jump command, is identified by the bits b4 and b5 of the Change of address of the command. To be more precise, there are the following two cases: b4 * b5 * O for the v / ert E «O conditional command SAL to be executed when E «0; b4 «0 and b5» 1 for the one indicated by the value E »1 conditional jump instruction.

That read during state es B and in the register 50 recorded second characters now represents the memory address to which the jump should take place.

The block 63A contains a logic circuit 105 (Pig. 5) which, in a known manner, emits an output signal CV can, which represents the following logical function »

«B ♦ ΏΓ · - E ·

509844/0462

BATH ORIGINAL

Accordingly, CV is equal to 1 if b4 «b5» B · 0 or b4 ■ O and b5 ■ E ■ 1.

7. 'if the jump condition is not fulfilled int, ie if in the two mentioned pills E «1 and EO, int d-is signal C7« 0 .inj.e 211 and 212 are on Pe ^ eI 1, while the Aus ^ nnj 62g of the circuit 62 is excited.Consequently, the UIi2) -3chr.ltur.g 210 excites the input 214 of an AND via a ΟΓΓΗ-circuit 213 Circuit 215, of which the din ^ r-ng 216 is then excited by the inverter 169. In this case, the IW'D-Cchiltung 215 excites the tiring 217 of an AND -notice 218, the other input 219 of which is connected to the output 220 of the flip-flop control F3 r.njeschlosßen int 221 of the 'JNE circuit 218 the plip-plop circuit FA at time Tf! via a conductor 204. As a result, if the jump condition is not fulfilled, the central unit 5 returns from state B to state A, as a result of which the jump command is not executed.

If, on the other hand, the jump condition is fulfilled, that is, in relation to the two preceding cases, the bit E runs the 7th 0 br *. 1 has the signal CV I3T nuf level 1 · consequently This signal energizes an OR circuit 137 and also the _f A on the UXI-Cchnltung 133: i.-138 ng of the U: D-2cheltung 139 · The other input of this The circuit is excited by the flip-flop circuit FB, provided that the central unit 5 is in state B. As a result, the flip-flop circuit FC is excited at the time TS via the UUD circuit DC,

Γηηη is the central unit of the Zu3tsnd B to state C, 140 währenddesaen the AND circuit (Pig x 8) dea command COIiIO generated, the dee the communication contents

,. _. . _o ORIGINAL BATHROOM

5098U / 0462

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of register 50 (Pig. 2) in address register 41 That way, the memory address to which d τ jump should take place, temporarily in the register 41 saved. At the point in time TI, an UlID-Pchaltun2 is generated 225 (? Iß · 8) Eefehl 00 ^ 12, which can be opened by opening a Gate circuit 121 (Piß * 2) the bits b6 and b7 in the page register which indicate the page to which the address belongs 71 transmits

line another TJIiL circuit 226 also generates the instruction CCLin, which can disable the counting circuit 44 (Fig. 2) · On This is done when command C01I04 is generated at time TR through an AND circuit 227 the same address, which is temporarily stored in the register 41, <5 · η · the second drawing of the instruction into the register indicating the address from which the next instruction will be executed 32 a ^ read.

The operations performed in state C are terminated are up, the central unit 5 goes to state A. about as in the case of the CDP and CAP commands. During the following The status A is then followed by the second character de3 commands and by bits b6 and b7 of the address change Read certain address into the address registers 41 and 71.

The unconditional jump is executed, for example, when any of the peripheral devices are in execution current program interrupts · For example, the Interruption caused, vrenn a peripheral device supplied by one of the central unit 5 to it lefehl CAP has performed the specified operation or if a peripheral device with the aid of a CUP command enters into the central unit 5 · As a result of this failure it is necessary for the central unit 5 in

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store a jump instruction su in a memory cell, which makes it possible to return to the last address considered before the interruption by the programmer. Lie3er jump command is therefore not conditioned by the Y / ert of the Eita E. It is characterized by bits b4 and b5 of the Adroaaen change, which in this case assume the values 1 or O. The output 3 signal CV of the hold 105 (Piß. 5) is then regardless of the value of the bits Σ always at level 1 In this case, the same operations are carried out by the central unit 5 as have been described for the conditional jump instruction with the condition fulfilled

there is an unconditional jump instruction called "'.iiedereintritt" jump instruction, its meaning is explained in more detail below · This command is identified by bits b4 and b5 of the address change, both of which assume the value 1. In this case it is Signal CV also ntets at level 1, as a result the same operations are carried out by the central unit 5 as they are for the conditional jump instruction nit fulfilled condition have been described

The fourth group of commands includes the commands that by the central unit 5 with the aid of the sequence of states A and B are executed. This group also includes the conditional jump instruction if, as discussed, the prepared Jump condition not fulfilled iot

This group also includes the instruction-not-peripheral-device.t instruction (COP), which is identified by the code 0101 and the transfer of the instruction, its code is starred by the c.veite sign, into which by the Bite bo and b7 of the address change determined peripheral device in the manner described with the aid of the commands CDP and CAP

5098A4 / 0A62 BAD origwal

causes · It should be noted that bits b4 · and b5 of the address change cannot be used by this command and are therefore always at level 0.

During the state A, the decoding of the Ea-

• 7

are absent by the circuit 62 which excites the output 62. During the interruption B, the readout takes place Display to be transmitted in dns selected peripheral device representing the second character of the command and a transfer to the register 50 instead of

Two AND circuits 230 and 231 (Pig. 7) now generate the command C0I! 08 or CCL09. Via command C0K08 the transmission of the Inhplta causes dea Register 50 in the peripheral device while the command CGIO9 is transferred directly to the central unit 5, ua p.nzu show that dos coming from the central unit Character is a command and not a character

After these operations have been carried out, circuit 213 (Pig · 5) excited at time T2 by output 62 »of circuit 62 excites flip-flop circuit FA in the same way as it did for the jump command with unsatisfied Condition has been described, ala the result of which the central unit 5 consequently changes from state B to state A.

lie l'.erknale of each command are summarized in the below Tables indicated, where in Table I the symbol for each command, the corresponding designation, the the code associated with the command, the corresponding output of the circuit 62, the bits b4 and b5 and their meaning are indicated are · In Table II are the machine states in which each command is executed by the central unit 5 becomes, the group to which the command belongs, the value of the Bita b6 and b7 and their meaning given

5098U / 0462 " ⁵⁰ "

BATH ORIGINAL

TABLE I.

Sy r.fc oil command Kcnstr.nten-
Urrfloich Sign after
Perinhprip. ^ Erüt code
tü-t3 AU3-
ßnng b4 and b5 meaning THA transmission Prcie
Trump ^ Instruction on
Peripheral device 1000 ⁶² I. hi - 0
b4 - 1
b5 - 0
b5 - 1 1 · is an operand
on page 0
•
1 · Operand 1st
on the current page
1 · operand
unchanged
1 operand + 1
ι
I. SCA Exchange oh Free constant
ter ': hrrtr "fving Leap 1010 62 ₂ b4 = b5 = O not used CFH comparison _c ^ p Ζ, ι, -icr.en of
Perirhprio ^ crMt 1001 62 _? b4 «0 b5» 0
b4-0 b5-1
b4-1 b5-1
b4 * 1 b5-0 Si-rank conditional
by E = O
Jump conditional
by E »1
unconditional
Leap
Re-entry
Leap _<v _ Lofische
^ - ^J u: .r-? Ur.ktion CAP 1111 ⁶² 4 0H3 Exclusive 0D2R COP 1110 ⁶² p P ^ - ρ constant
^χΛυ ■ over-runK SAL 1100 ⁶² IO CIC 1101 ⁶² 11 T3L 1011 62 ₁₂ TLC 0100 62 ₁₃ 0110 ⁶² 8 0111 62 ₉ 0101 ⁶² T 0010 ⁶² 6

BATH ORIGINAL

509844/0462

TABLE E II

_c , ^ v ₀ I -machine-
^ * · ⁷ 'states A, B, C, D, E j
i AfBfC A, B, C I.
group b6 and b7 meaning CO? AWAY I. b6-0 2nd operand 1st
on side O C * "" » COC 'Λ, E, L, E ι
SAL *
2nd operand is
on current page
2 · Address
unchanged .MiD ::. L AfBfCDfE TT b7 = 1 2nd address + 1 0? .Ε I. b6 = 0 b7 = 0
b6 = 0 b7 = 1 as for CI? II b6 = 1 b7 «0
bC = 1 b7 = 1 Jump command CAP III b6 = 0 b7 »1
b6 «1 b7« O
b6 «1 b7-1 Tape storage
typewriter
Operating statesfeü IT b6-0 b7 «O
b6 »O b7« 1
b6 «1 b7 * 0
b6-1 b7 »1 III 2. Opcrr.nd is
on side O
2. Opersnd is
on page 1
2nd operand is
on top 2
2 «is the operand
on page 3

509844/0462

BATH ORIGIN * ¹ -

As already mentioned, during the execution of one of the commands described above, an interrupt command can reach the central unit 5 (Pig · 2) & among others any of the peripheral devices connected to it. For the purpose of executing the current Eo command, the execution of the program currently being executed is interrupted and a further series of commands is executed.The machine states used to execute the interruption are the states P and G, so that the interruption is executed in 4 MB. * '

When one of the peripheral devices 6, 7 and 8 supplies an interrupt signal INT, the logic circuit 31 (Fig. 2) energizes the conductor 76 which feeds the signal IMT into the block 63A (r'iC · 5) · if at the time When the signal INT is supplied, the command of the first or second group ending with the state E is in execution, the central unit 5 continues the execution of the command as long as this state has been reached. Then, as already mentioned, the output IiE of the flip-flop circuit FE energized and the input 232 of a ^u ND-2chaltung 233 energized, whose other input is energized by da3 signal I ^ T 234 · Accordingly energizes the circuit 233 initially at the time TS, the flip-plop circuit FF, so that the central unit 5 passes from the input E to the state P

If at the time of the supply of the signal INT an instruction of the third group whose execution with the state C ends, is being executed, the interruption to be carried out only begins when this state is reached is. This is because it becomes the starting point of the flip-flop circuit FC and consequently the input 203 of an AND latch 248 is energized. The other input 235 of this circuit is only energized when an UNr circuit 236 is energized. This occurs on only when both conductor 76 and the output of ODEH circuit 198 are at level 1. This ODEB circuit

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is energized when a command ending with state C is in execution, insofar as its ranks are connected to the outputs 62g, 62g, 62q corresponding to the commands SAL, CAP and CIP In this way it can never happen that the execution of an instruction which does not end with the state C can be interrupted by the signal ΙΙ.Ϊ ia, state C. If the UHD circuit DP is excited via the AND circuit 248, the central unit 5 goes from the state C to the State 1 over.

The signal INT acts accordingly in the case of a command that is being executed and ends in state B fourth group only when this state is reached · The output 220 of the Plip-Plop circuit PB is energized nMmlieh the input 240 of a UlID circuit 241, whose other input 242 is excited by a further AND circuit 243. The AND circuit 243 is only energized if both the INT signal and the output of the ODSR-3ch-> ltung 213 is at level 1. This only occurs if the COP command or the jump command with is not fulfilled condition is in execution · This prevents the possibility of the execution of a command that does not end with state B is interrupted in connection B If the UIiD circuit 241 is energized, the central unit 5 changes from state B to state P.

In each case, takes place during the to prior P in a known manner the reading of the selected during the preceding Zuetandee memory cell than if the CPU had returned in the Zu3tand A 5 · The contents of this cell is in the above-described Weis · in the Ausgangeregister 50 transmitting ·

BATH ORIGINAL

509844/0462 -

An AND circuit then generates at time TM (Pig · 4) 245 (? Ig. 11) the E command CUL125, which by activating the gate circuit 246 (Pig. 2) acts, the content of the register 32 in the Hegister 57 transfers. This content corresponds the memory address deo is being executed last command. At the same time, the command C0H25 sets olle Flip-Plop-Sohsltun ^ en the register 41 on Pe <del 1 by he only acts on the respective seating circles. In this way cell 255 is selected because the configuration 11111111 of register 41 corresponds exactly to this cell

The side this cell belongs to is side O, since the Contents of hissister 71 not in address compliance 45 is transmitted because the gate circuit 113 is closed During the state a P, the gate circuit 113 becomes The opening command COM18 is not generated, however Result in register 71 the configuration OO available is·

The output MP then generates the flip-flop circuit PP directly the ecommand C01123 (Fig. 11), which by clicking on the memory input circuit 47 (Pig. 2) acts, the Sign 001011 followed by the one in the hop. later 71 included Reads bits into / lusemgskcnal /} 8 · About this Purpose, the logic circuit 47 contains a circuit 101 (Fig. 13), which for example from six flip-floph'ch ^ ltungen is formed, which are set by the command C0K23 so that the bit configuration C01011 is achieved. The Circuit 101 also turns off the normal channel 82 both bits can be added to register 71. The configuration eight bits become dr.nn in the Auc ^ an ^ skanril 48 transfer. The output channel 43 forms the input of the Memory 42 (Pig. 2), so that the configuration of eight bits in the address contained in the register 41

ORIGINAL BATHROOM 509844/0462

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selected cell of the memory 42 is written. Eie: -e address is received, · as already described, the Cell 255 from side O. as mentioned earlier, that beating Character 001011 the reentry jump command, on the other hand the bits in the register 71 the current page bcatimmen. At time TR (Piß · 4) a Ui »ID-i3chaltur.g is generated 247 (Pig 11) the command C01-04, which reads in the The contents of register 41 increased by one unit, i.e. the character 00000000 corresponding to cell O on page O, into register 32.

Accordingly, it is clear that during the state P in the Cell 255 of page O of the reentry jump instruction and the address in address register 32 CCCOOOOO is read in

At the time TS (Pig 4) following these operations the central unit 5 goes into state G, since the U: .D circuit DG (Pig · 5) is excited. During the state G generates another UNI circuit at time TS 250 (FIG. 12) the command COIiOI, which transfers the content of register 32, that is to say that of cell O of page O corresponding address in register 41 causes

At the time TH following the time TS, a U Ii D circuit 251 (FIG. 12) also generates a signal RO, that is, the pop-pop circuits of the register 71 (Pig. 2) in n under »resets and εο selects page 0. The Aun £ i: ng!.! Gr of the flip-plop circuit FG also directly generates the command C0Ü14 (Pig 12) which, by acting on the circuit 47 in the manner already described, is stored in the register 57 (Fig 2) The stored address contained in the last command that is being executed is transferred to cell 0 on page 0 of memory 4-2.

ORIGINAL BATHROOM - 56 -

509844/0462

Kit aid of the operations just described is thus in cell 255 of Ceife 0 a command for a low entry jump to the page has been assigned which is the address dea itself at the time of entry the command being executed belongs to the interruption ricce address has also been stored in cell O of page O

After these operations, another AND circuit is created 252 (? Ig. 12) at the time TR following the time Tu (Pig. 4) the E command C0Ü26 · This command acting on a gate circuit 253 (Pig · 2) transmits the Contents of the logic circuit 31 in the register 32, i. E. the peripheral device 6, 7 or 8, which caused the interruption, reads the corresponding Adres3e into the register 32 a. At the same time, the content of register 32 is transferred to the logical return circuit via channel 33 34 plowed in. In addition, the command 001126 acting on a gate circuit 255 transfers the possible comparison bit S from the register 96 to the register 97, where it is used for the entire duration of the interruption is saved · Da3 Register 96 could be used during the actual interruption if, for example, the interruption contains the command CFR or CDC »

If the signal IKT is generated in the course of a command by more than one of the peripheral devices 6, 7, 8 at the time TI following the time TR (Tig, 4), a UIiD connection 256 (FIG. 12) generates the command C0L24 and opens a gate circuit 257 (Piß. 2). This thus causes the reset of the pop-up circuit of the register 30 corresponding to the peripheral device with a higher priority which caused the interruption. In this way, after the execution of the program corresponding to the interruption caused by this peripheral device

509844 / CUB2 BAD ORIGINAL

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Another possible interruption corresponding to a peripheral device with a lower priority level be brought about.

After these operations, the central unit 5 returns to the puf the time TI following time! Ts insofar as in the state A returns when the UiJD-Ccholtung DA (Pig. 5) excited by the iuegjmg MG of the flip-flop circuit PS is opened at this point in time. Thus, the execution of the first command in the series is switched from calibration to the interrupt-related commands started whose address has been temporarily stored in the register 32 »Thus, during state A in which the central processing unit 5 is at the end of the interruption, among others the command C01101 generates the transmission of the dem first command to be executed from the corresponding address Register 32 in register 41 enables this E instruction is then together with the rest of the row relating to the interruption τοη commands under the same Conditions executed in accordance with the above has been described with the nature of the actual commands are·

For T. 'resumption of the interrupted commands by the Central unit 5 is the last command on the The series of commands relating to an interruption always includes an command for an unconditional jump to the address of the Cell 255 of Gee O. In this cell Iate as above mentions the first character of an einstruction for a reentry jump to the through the in the to the cell 255 following cell 0 from side O saved second character of the command has been saved in the address *

The re-entry jump instruction is then executed by the central processing unit 5 in the manner described above

509844/0462 _QRlG1NAL _ ₅₈ _

and causes the central unit 5 to operate under the same conditions returns, under v / elchen themselves at the time the interruption. More precisely ceonct is on üend of the re-entry command in register 41 which bectirjT.te by the second character of the actual command Address, i.e. <lii »the same address, at which Pich the Central unit 5 was located at the time of the interruption, recorded · Besides v. is recorded during the 8 conditions B dea V ^ re-entry jump command, since the pages b4 and b5 of the Address changes both assume the value 1, through which ΙΠίΡ circuit 258 (FIG. 7) generates the command C0IZ13. Eiesor Command acting on gate circuit 259 (FIG. 2) transfers bit E from register 97 to the register 96. The bit E in the register 96 becomes temporary saved that calibrated at the time of the interruption was in it. After executing the 3 re-entry jump commands there is a return to state A, wsi Door resetting of interrupted programs results.

Γ38 Control unit 9 (Fig. 1 and 14) for the typewriter 6 controls the exchange of data and commands between the typewriter 6 and the central unit 5 · Las Sin- and ejector 12 of the typewriter 6 includes a IZinflobeschaltung 12 * for receiving the codes of the characters and the code of the puncture characters e from the control unit 9 rieae. Codes are made up of eight bits of which six will be bonutst to determine the character, one is a shift bit to determine upper and lower case letters is, while a bit is, for example, a parity bit can be used. The six bits of the character act in the well-known way on a row of six electrons to select the character or puncture to be performed.

The output device 12 also includes an output

509844 / 0A62 ^{BAD 0RIGINAL}

circuit 12 "to transfer the codes of the seven characters and cLqt functions, which are entered in known parts on the keypad 270 ts-i. the keypad 271, into the control unit 9 · The codes are transmitted by switching from in Fig. 14 eecb.8 switches of any known type, not shown, instead of '.

ler connecting the control unit 9 to the central unit 5 ^ mktionsleiter 65. · is through the decoding circuit € 5 is only achieved if this circuit is in the above mentioned ft'eise the typewriter 6 selects it will cuss the cit of the central unit 5 via the the memory input circuit 47 of the central unit 5 is connected Auseangskenal 46 and via the IN-1 connected to the output ar egi st he 50 of the central unit 5 51 exchanged

The lingar.gskanal 51 transmits the data present in the register 50 to an eight-bit register 273 of the control unit 9. The operation of the control unit 9 is controlled by the central unit 5 with the aid of the external commands COP and CA? for the reception of a command or a character from the central unit 5 and controlled with the aid of the CIP command for the transmission of a character into the central unit 5. More precisely, the control device can be controlled by the central unit 5 with the aid of the command CO? are brought into a normal or one-pin state "as already mentioned, the command COP namely generates z-.vei commands COlIUO and C0u! 09, which are fed via a conductor 269 to a locoding circuit 274 of the control unit 9" Decoding circuit 274 causes the received command to be decoded in a known manner. If this command is the command COLI03, the circuit 274 energizes the output COiIOS *; if it is command C01109, it excites output CQÜ09 ¹ . These outputs provide the control unit 9 on

5098U / 0U2 BAD ORlG ₁ NAL

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the transmissions or the reception status #

If the central unit 5 intends to receive a character from the control unit 9 * u using the command CDP, aie the control unit 9 sends a command COP which generates the command C0Ü08 Conductor 652 in ^{front of the} signal is an AND circuit 275, which acts on the reset circuit of a flip-flop condition 276 in such a way that it then indicates that the control unit is in the transfer state.

When the operator on the keypad 270 presses a When the character key is actuated, the output circuit 12 "excites in a known manner via a conductor 277 an AND circuit 278, which in turn is opened by the flip-plop circuit 276 Plip-plop circuit 279 acting out gong signal of the AND circuit 278 opens a gate circuit 280, se daJJ the character entered on keypad 270 is transferred to outer face 46. Conductor 277 is over an OR circuit is connected to the input 30a of the register 30 (FIG. 2) and causes an interruption in the register in the manner described above How the central unit 5 works · The Central unit to that of the typewriter 6 and decoded by the circuit 31, through the conductor 30a embroidered address · In this address is the first Characters contain a command CDP, as a result of which the central unit 5 is set to receive the character present on the channel 46

If the operator presses a puncture key on the keypad 271 (Pig. H), the keypad delivers the conductor 285 a signal in the same way as in

BAO ORIGINAL

509844/0462

-Gl-

Conductor 277 causes the transmission of an interrupt signal in the central unit 5. This becomes the central processing unit prepared to receive the function character present on channel 46. The conductor 285 also excites an AND circuit 2S2, which in turn acts on the Eetzkreis of the flip-flop circuit 279, the gate circuit 283 that opens a channel 284 with the output channel 46 connects

The keypad 271 also provides a conductor 286 with a signal corresponding to the function key being actuated. This signal acts on a decoding circuit 287 which supplies the code corresponding to the key pressed This code is made up of eight bits, of which bits b4, b5 and b6 are always zero, in order to be a function symbol from a printable character. This code is via the channel 284 and the gate circuit 283 dem Output channel 46 supplied

If a command character is to be transmitted into the control device 9, the central unit 5 sends it to a command CaP on the channel 51, which generates the command COMO9. This command is decoded by the decoding circuit 274, which then excites ^{the output C0H09 1.} This output acts via an AND circuit 290 on the setting circuit of the flip-flop circuit 276, which brings the control unit 9 into the receiving state Ui; D circuit 291 marked · Ds opening of the AND circuit 291 is effected at the time TH, since at this time during the command CAP the central unit 5, as described above, has already taken the character to be supplied to the peripheral device in the memory 42 and it has been temporarily stored in the register 50 (Fig. 2) connected to the input channel 51 of the control unit 9

509844/0462

RAD OR'G'N * ^U

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When the CAP command is executed, the Channel 51 transmitted characters by the central unit 5 into the Eegi3ter 273. If this symbol is a as mentioned above, by the zero bits3 b4, b5 and bS is indicated, delivers one the register 273 a closed decoding circuit 299 a Signal T, while if the 3rd character is a print character is, the Deoodierscbaltung 274 in a known manner instead a signal W delivers

In the first-mentioned gate, a gate circuit 295 is opened, as a result, the character present in the register 273 is supplied to the decoding circuit 287 via a channel 296 becomes · This circuit supplies an output 297 a signal via a gate opened by the signal Y. 296 of the input circuit 12 'of the typewriter It should be noted that the gates 298 and 298 are only opened when the 2nipfanj3status consists (R «1) and the character is a punctuation mark (Y «1 and W ■ 0).

If the character in register 273 is printable is, the signal W opens a gate circuit 300 so that this Characters in the input circuit 12 'of the typewriter 6 is transmitted · It should be noted that the gate circuit 300 is only opened when the control unit 9 is in Reception status (R «i) is and the character is printable is (CT »1 and Y« 0).

7 / as was said here for a single character also applies for consecutive, both received and transmitted Sign.

Every time the input circuit 12 'receives a character it delivers a signal on a conductor 301,

509844/046 2 bath original

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that via the input 30a an interruption in the central unit 5 inputs so that the central processing unit aif the feeding another character is prepared

On the base of de3 marked by the interruption The central unit 5 can now store the contents of the memory cell a command or a character by a following statement respectively. '. If, for example, the control unit 9 In The central unit knows either a CiP command, the result of which is the transmission is continued, or a command COP to receive, as a result, the control unit 9 to the Expfancsstatusnnd is made · The character is taken from the Central unit 5, of course, with the help of a subsequent one Command CAP supplied

las control keypad 8 is used to access the corresponding Control device 11 to supply the central unit 5 with a number of commands. More precisely, this contains Keypad a main switch, not shown in the drawing, lter for the power supply of all units of the Prucksnlr.ge · Zs also contains a start button, known per se, which starts the operation of the units in the Veise enables the loading of the memory 42 of the central processing unit 5 with the initial command group in the manner described above, *! Leave these commands also loading the memory 42 with a special one Group of commands called "load" commands to which the memory 42 with any other effective Group of commands can be loaded in the form to be explained in more detail below. The keypad 8 also includes an indicator lamp, which with the help of one from the central unit 5 able E command is brought to light up · To this purpose acts because the exchange of commands between the central unit 5 and the keypad 8 by means of a

509844/0462 bathroom original

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Commands COP takes place, this command in the V / eise described for the control unit 9 of the writing pad 6 on the Keypad 8 on. More precisely, the command COP also dials Using the decoding circuit 65 (Pig. 2) the keypad 8 eus, the only one by the second character of the command COP and formed from eight Eits all at level 1, enninrat · This Eefehl acts in a known manner on the keypad 8, among other things to generate the lighting of the indicator lamp.

] v.s test field 8 can in turn the central unit 5 only apply an interrupt signal by operating the interrupt test connected to input 30c of circuit 30 (FIG. 2). The interrupt key is set then the central unit 5 in the manner described above in order to execute a series of commands linked to the interruption from the keypad ko at the end «

The control unit 10 for the magnetic tape memory 7 controls the reading and writing of addresses and programs and data in memory 7 «

The memory 7 consists of an endless and in one Cassette contained U: ^ netband 310 (Piß. 15). The cassette is -interchangeable, so that the events can be any number from Ka3setten urnfn3sen. read Ennd 310 contains a Series of parallel tracks P1, P2 ... PN, on which the deeds correspond in series in each case to a print line Blocks B1 ... B256. Each block is separated from its neighboring block by an as an erasure zone designated zone in which no recording takes place.

Each memory block has a fixed length and comprises 80 characters of eight bits each · The characters of each β block

509844/0462

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and consecutively numbered, namely from 0 to 79. The characters from 6 to 78 are used to record the data relating to a corresponding print line, r ^: the characters from 0 to 5 ela punctuation characters are used · More precisely, contains dna first function characters a Konetsnte which is used by the central unit 5 to from the tracks PL. .PN to retrieve the one that contains the block in which the next characters are to be recorded. The address of this block is determined within the limits of the selected track by the second character, while the cassette itself is identified by the third character · The fourth character indicates the number of characters each line can contain. This number can be selected by the operator in a manner to be described in more detail below so that the length of a print line is extended or reduced. The fifth character indicates the number of characters currently contained in the print line. The sixth character indicates the code of the puncture to be carried out on this line, for example centering, underlining, etc. Finally, the 79 · character is a longitudinal parity character relating to the remaining seventy-nine characters "

In addition to the data tracks P1 ... PN, the bind 310 also contains a track PO which contains the addresses II ... 1256 of the diten blocks. Each address block 11 ... 1256 let is made up of twenty-five characters, only one of which is used to contain the address of the data block or the program block To determine the data block. The remaining twenty-four characters, each address block, are used as punctuation marks. Especially the first three of these characters can represent two constants that are used to identify

509844/0462 bathroom original ₆₆ _

elr.eö Adreseenblocka or a Progra ^ nblocka can be used. On the track PO a program block BP1 ... BP25C consisting of 70 characters is recorded between one address and the next, in which the characters of the effective bar commands of the printing system are recorded.

Jeccr AdrecGcnblock 11 ... 1256 is used to describe the duck's eyes nuccu-.Yvlhlcn, which geonetrically in the preliminary direction of the Federal r. To follow him. For example, the Tracks P1 ... PH recorded data blocks B2 through the Adrecsenblock 12 GU3selected. To a data block unambiguously Therefore, first of all, the question to which he is to count has to be counted selected, selected, and then within the confines of the track the actual block selected from the remaining 255 blocks will.

Ia3 control unit 10 iat via a singinging sconal 51 (Pig · 17) s of the register 50 (Fig. 2) of the central unit 5 and Via an outlet channel 46 to the ELngan ^ oBOhr.lturig 47 of memory 42 is closed. In single elr.d the two Channels 51 and 46 Via two gates 316 and 317 cn an Eegicter 318 of the control device 10 is connected. read register 316 can store the temporarily stored in it lita with a shift register 319 via z.vei gate circuit cn 32C and 321. Dpb register 318 transferred the Eita r. also there in, a decoding structure 325 »the corresponding the Eits obtained from the register 318 can generate a variety of instructions. Lie e-coding implementation 325 acts on a time control device 326, which the operation the control unit 10 generates controlling clock signals

The decoding circuit 325 can also be connected to a dea conductor 327 signals present, which is at level 1, when the start button of the keypad a 8 is pressed The decoding circuit 325 is via a gate

509844/04 62 BADORlGtNAL

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scbsltung 323 connected to a four-points-register 329, the label provide a signal to a conductor 330 which, by acting on a read head of the magnetic tape memory 7 _s is applied that selects the appropriate Eita 3pur contained in the register 329th

3>j> Register 319 is also connected to a further decoding circuit 335, which sends a signal at its output 336 if an address is present in the controller 319 which, when energized sit at the input of circuit 30b 30 (Piss x 2) of the central unit 5 supplies an interruption signal to a circuit 337 a ·

rs register 319 is connected via a gate circuit 338 to a Cii-nalformerschaltung 339, which can deliver to an output 340 the corresponding signals from case to PnII in the register 319 contain.cn characters. These signals are used by a writing instrument of the memory 7, which is not shown in the drawing · Finally, the register connected 319 to a reader 342 of known Eauc.rt that read on the Er-nd 310 recorded bits serially and they may transfer conductor 343 to register 319.

The exchange of data between the central unit 5 and the control unit 10 takes place by means of the commands CO ?, CDP, CAP generated by the central unit since 5. The control unit is initially in the idle or unemployed state. This aspect is shown symbolically in FIG. 18, which schematically illustrates the sequence of the operations carried out both by the central unit 5 and by the control unit 10. The operations carried out by the du3 control unit are specified in square blocks, while the logical decisions or alternatives are carried out

509844/0462 BATHROOM ^0RISINAL _ ₆₈ _

Rhombs are shown. On the other hand, they are through the Central unit 5 operations carried out indicated by arrows, the symbolic doors open, including the transition dea control unit from one operating state to the other to enable

In order to write or read information on the end 310 of the diagnostic tape memory 7, the central unit 5 supplies the control device 10 with what is known as a "selection" command COP in the manner described above. Since, if the selected peripheral device is the memory 7 in the first character of the command bG “0 and b7 ^e 1”, do these bits affecting the decoding circuit 65 (^ ig · 2) of the central unit 5 cause the conductor 65 to be excited? (Figs. 2 and 17), which has an input of a UI. ^T ]> 3circuit 350 of control unit 10 (FIG. 17) energized. The other input of the UiJD circuit 350 is energized by the command C0_108 generated during the state B by the command COP. In this way, the gate circuit 316 is energized so that the second characters of the command present on the channel 51 can be introduced into the repister 318. The second character is simultaneously introduced into the decoding circuit 325 which, when it detects a so-called Auir, Yühlz <calibration, delivers a signal to a conductor 352 which causes the strip 310 to start up. The let selection character indicates that the bits b5, b6, b7 have the value 001.

At the same time, the decoding circuit 325 supplies a signal L which opens the gate circuit 328 and transfers the four bits of the character present in the decoding circuit to the register 329. Tiece bits are used to select a ^ pur from the tracks P1 ... PÄ dea Endes 310. The register 329 now supplies a signal to the conductor 330 which is used by the memory 7 in a known manner for selecting the track.

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äa3 prepares signal L, the reading circuit 342 in te: renter .. 'else to lejeii the addresses before · lie ijchaltur./r 342 leads the register 319 serial bits of the first character of the first read address block to. The operations are symbolically represented by block 353 (Pig. 18).

Ls is also possible, du3 control unit 10 by actuating dee Ctartkr.opfes of the keypad 8 in the address reading area bring to. huge button or this Taute works circuit 325 in such a way that a select command C-? is simulated. The circuit 325 carries out the same operations as the aua described above, as a result of which the control unit 10 also assumes the reading state represented by the block 353

i'ie already mentioned, the Adreeoenblocks are Ho..1256 d <ε band 310 determined, if the first three characters represent the corresponding constant, therefore actuated the lecoding circuit 335 (i'ig 17), if it recognizes cab the block read is an address block, the üchaltur.g 337 showing the supply of an interrupt command the input 30b of the circuit 30 of the central unit 5 (rig · 2) causes · These operations are symbolic by blocks 354 and 355 (Pig. 18) are shown. The central unit 5 now carries out the interruption cus

The interruption now causes the central unit 5 a jump instruction to cie the memory 7 corresponding cell of the memory 42 (Pig. 2) executes, in which the Command C2? is stored. Larauf runs the central unit 5 the command CL? on channel 51 to register 318 (Pig. 17) of the control unit 10 too. huge instruction is decoded by circuit 325 which provides a signal M which the control device in the address transmission state (block 356 after

BATH ORIGINAL

09 844/0462 -70-

Γίβ.13) brings. Signal M also opens the gate switches 321 and 317, so that the extracted air is from register 319 in 318 and from there via don Ka-T.- ?! 46 and the storage unit 47 (Fig. 2) is transferred to a predetermined inch of the core storage unit 42

r-? nn the central unit 5 executes a command CDC, by means of dccoen the nug den 5t.-vjorf, er. \ t 10 received address ~ it the address one of the 3 blocks, in the I-.ppicter 57 ( ? if. 2) vorUtcrf ^ h end cespcichertcn Kjnsti.nte If the Verclfich sr. ^ iachon the bf-idrn characters nrgp.tiv iet (Pit E β 0), the central unit 5 does not feed the control unit 10 any errors (logical Decision 357 n "= ch Fig. 18), as a result of which the control unit in the above-described" feeds the next line and that of blocks 354, 35?, 356 after "1". Operations described in 18 have been performed. If the comparison between the two characters is positive (lilt E «1), the central unit 5 sends the command COP, which can be used to read or write to ZU2 if the Eodinr.ur.ß n ^.: -r.lich not fulfilled iut (lit 3 * 0), the Zer.trr.lfinhcit 5, v. back to Zu3t :: nd A; v / srm sie;: nderor ^ if lot (bit 2 * 1) is fulfilled, the central unit 5 carries out a S? run £ beff-hl to a memory address in which the first character is a 3 Command CO? Recorded

Pie type of I'efehla (write οJor read) is through the z-vrite Zcichrn the r.ofchlc Cü? boi3tin: t, dr-.s through the circuit 325 decoded virc. When this character is given a read command, the coding circuit? 25 supplies the 5J.rr.31 L, which by returning the 3 Lcsskopfsa 342 the serial reading of the bits of the first character to the selected block

5 0 9 8 A 4/0 i * 6 2 BAD ORIGINAL

- 71 -

generated, which in the register 319 (block 358 after Pig. 18) be transmitted. When this register is full, it activates the circuit 337, which is the central processing unit 5 Submission ^ Dsignnl (block 360 after Fig. 18) The central unit 5 causes the Transmission of the character taken from the control unit 10 into memory 42 (block 361 after Pig * 18). In this way, all characters of the selected block will be in the Transfer memory 42

the central unit 5 determines that the removed The sign that is the last of the selected block leads it the control device 10 to a so-called end command COP (Logical decision 362 of Fig. 18) · The decoding de3 last character of the block is done by the central unit 5 with the help of a command CDC, which causes which taken from Poll to Pail's ongoing grief Constant representing the character with the maximum number tone Character in the block representing constant is compared · ETif the comparison is positive (bit E * 1), returns the central unit 5 by means of a with the to deliver a COP command for reading the procedure completely matching procedure an end COP command.

The decoder circuit 325 (FIG. 17) of the controller 10 is decoded do3 second character of the end command COP and returns Command signals not shown in the drawing, which are in known * »7ei3e the transition of the control unit 10 into a cause the state corresponding to the end command COP (block 363 after Pig 18),

When this drawing the end of reading the block with pause of the end, the control device 10 returns to the initial state (Pig * 18). Unless though the end of reading the blocks is displayed, reading the next

509844/0462 _BAD ORIGINAL

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Elocks is started, the control unit returns to the state represented by Plock 358 (Pig. 18). When reading the block is finally started and at the same time reading a block that does not follow the block that has been read is started, the control unit returns to the address reader, ie to the input shown by block 354.

Pnlls the central unit 5 intends to record or write data in the selected block , it sends a command COP to the control unit 10 for writing (lc ^ ircfce integration 359) · servant command is decoded by the circuit 325 (Piß · 17), which consequently the circuit 337 is energized with the aid of an eir.es £ irn? l3 H. The circuit 337 drives the central unit 5 to an interruption (block 365 according to FIG. 18), whereupon the central unit 5 sends a command CAP to the control unit 10 in the manner described above. If this command is recognized by the decoding circuit 325 (Pig 17), it delivers a fi.-nnl K, dr.a by opening the gate circuit 320 the character to be recorded or written in nus dea Hericter 318 is transferred to the register 319 to be energized at the same time the circuit 325 the timing circuit 326, which effects the shifting of the bits in the shift register 319 by a clock signal TK in order to introduce them serially into the signal converter circuit 339. These operations are sir.d by block 366 to iig. 18 shown »

When the characters mentioned in dps have been recorded, the writing instrument delivers a signal J in a known part which contains the .-. UTiBr-T. ir η an interruption ^ Fri ^ n ^ lr caused by the Schaltun-337 (ric-cfc 3C7, Fig. 16). Consequently, the dec. or provide a CAP command (logical decision 368). In the first-mentioned PalIe, the tax

5098A4 / 0462 ^{BAt> 0RI <31NAL}

- 73 -

Cer't 10 in its unemployed state and in the second Fr.ll in his through block 366 to Pig. 18 marked Condition back »

"." As mentioned above, the operation of the automatic rrv.ckanlpge controlled by command units, which 3i each rjf a special processing operation to be carried out on a text relate · The command groups relate to des r '-. r .'- tb-r.d 310 (tear. 15) in those lying on the track PO Pr c.-r block BP1 ... BP256 recorded · More precisely }: "ir.r: cn the processing executable on a text coperaticr.cn either processing operations to the forsat des Text or processing operations on the content

let Yernrfceitungi-operatior.en on the format allow the Optionally multiply characters in a print line or to reduce, the so-called alignment of the lines, i.e. three alignments of the right edge of the lines to achieve to underline one or more words in a line or one or more lines or one or more V. to center in relation to the length of the rope, /.r.df- on the other hand, enable the processing operations of the content deleting one or more lines, adding new lines or paragraphs or correcting errors

Each of the described processing operations is determined by a corresponding command group which, among other things, must be transferred from the magnetic tape memory 7 to the core memory 42 of the central unit 5 (FIG. 2), which it executes in the order in which it is executed the memory 42 are recorded

To transfer a command group from the tape memory 7 to the core memory 42 , the operator operates the

5Q984A / 0462 _BAD original

- Τι -

Start pushbutton of the 3 keypad 8 325 (Fig. 17) in above ..one actuates and brings the control unit 10 of the tape storage device 7 in Leaezustsnd 358 (Fig. 18). Rely on it the central unit 5 enters its unemployed state represented by block 380 according to FIG.

Now the addresses recorded on the track PO of the memory 7 (Fig. 1) are read and sent by the control unit 10 to the central unit 5. ? ig. 2) iiurjfiihrt whose Adreone by the interruption in pelbgt above berchriebener wines is determined · in diener address C] DC command is recorded, 5 cen-acr means of the central unit in the circuit 98 (i'ig. 13), the r-us the control unit 10 with the address in the. Register 57 temporarily stored compares · JCa the address cus no bits are formed, the eile irull sini, the transmission of the first program takes place ^: .r ..--. Blcck3, when the control unit 10 disc. Recorded on the end 310 and feeds the address of this block, identified by eight zero bits, to the central unit 5, euo the input 7 in the core memory 42 ctntt. Ina Ir der. the initial command is syr "bolinch by the block Vd \ (Fig. 19) d? r ^ eetellt. The addresses of the cells of the memory 42 in which the characters in block 3 are recorded are supplied by the address post 45 of the memory 42. As already mentioned above, the command group recorded in the first block does not contain the initial commands, which enable the central unit to record the following commands in the manner described in more detail below.

As described above, the central processing unit 5 carries out the recording of the start commands during the period of time A aua,

5 0 9 8 kk / 0 k 6 2 _BAD original

- 75 -

TTol for the exit firnal to remain in this state BT of the flip-flop circuit 35 (Piß. 2) determines that if its signal is cool, that is, if the starting command group is completely written into the memory 42 is, the central processing unit 5 turns to the execution of the commands contained in the initial command group (block 382 of Fig. 19).

At this point in time the central unit 5 (? Ir · 2) is still in status A and the address of the cell following the cell occupied by the last command of the initial command group is recorded in the address decoding unit 45 passes to input B in order to execute the first instruction of the initial instruction staircase, the content of the cell of the last instruction is in the output register 50 and then, due to the application of the instruction C0M15 (FIG. 5), into the register 57 (? Ig. 2) transferred.

The first command of the initial command group is a command CC ?, by means of which the central unit 5 brings the control unit 10 into the reader frame 358 (Pig. 18). The central unit 5 then compares the addresses provided by the control unit 10 the previously temporarily stored contents of the register 57 (FIG. 2). ! This content int the address of one contained in the country commands on Ί <"". Marked r3 dee through them: - ^Ξ: Hd 310 recorded blocks, which refers to a auctions Rules, a special Verarboitun'soperation listed on the text commands associated with group / hen iirre Adrpfpe by the Central Unit detected · 7, finds the "Jbertr? Blocks of the: I? Nd3r? I «r 7 in the core memory 42 etatt» The operations carried out by the central unit 5 for recording the block of loading commands are symbolically represented by the block 382 (Fig. 19) and are the same as the

B093A4 / 0462

_BATH

through blocks 354, 355 and 356 described above (Fig. 18) eynboliech shown.

The block of documents just written in the memory 42 contains, as mentioned above, the address of a second block, which is also a load command block is. Then the inscription of this second block takes place into memory 42 instead of as described above. The central unit 5 is now in its working state symbolically indicated by block 383 (FIG. 19). The initial command group is in this state and the two load program blocks in memory 42 since they have been written therein.

Pie loading blocks enable registered mail, among other things a special group of commands called * Au: ywahl " Commands that make up a special group of commands set up on the keypad 270 (FIG. 14) of the typewriter 6 erxoglicht, from all calls of the track PO of the li ^ gnetbandes to be selected from recorded command groups

1! ". With the charging signal represented by the lock 333 (FIG. 19), the central unit 5 is faced with a logical decision symbolically represented by the sheet 344. This logical decision or alternative expresses the fact that the central unit 5 is the load has a group of generic commands or the group of "Select ¹¹ commands. This logical decision is represented by a conditional jump command recorded in the first load block.

With the help of the 3 conditional jump command, the central unit can 5 now a jump to the cell of the memory 42 ευsführung, which contains a command COP, in the above the address described in the PO track (Fig * 15)

- 77 -

5Q98AWCU62

to select the recorded program block that the the operator corresponds to the command group entered on the keypad 270, whereby the central unit 5 in the state represented by block 386 (Fig. 19) for Lndrn the genus 3 commands is brought. Kit help this The central processing unit 5 can jump to a cell in the memory 42 which has one of the "selection" command groups associated command COP (block 385 n-ch Fig. 19) · The central unit 5 carries out the jump instruction on one or the other cell depending on whether the operator on the keypad 270 has a particular Entered processing operation or not

When the operator does not input a processing operation hnt, the central unit 5 executes a jump command to the memory cell containing the command COP for “selection *” bus. The address of this cell is represented by the second character of the jump command * The first command This group is a command COP directly to the control unit .t 9 the typewriter 6 »hit help of these commands the central unit 5 sets the control unit 9 to the • £ .T.r-iar.gßstatus, whereupon it is commanded with the help of the following CaP of the typewriter the label JOB? feeds These operations are symbolized by block 388 (Ti,?,. 20) shown. The control device 9 then carries out the command to the Lir -.- nbeachriltung 12 '(Pig. 14) to print this label, which consequently appears on the print sheet. Then the central unit 5 sets the control unit 9 cit using a following command COP on the transmission symbolically represented by the sheet 389 (Fig. 20) state »

Psnn is given by the operator on the keypad 270 (Pig * 14) of the typewriter 6 the label or the group

ORIGIMAL BATHROOM

5098AA / 0A62 -76-

of characters that form the desired command group. The control unit 10 leads, as already in the description of the control unit 10 fentetzt, one after each character Interruption »The state in which the Central unit 5 is now located, is represented by block 390 (rig. 20) · After that, each is through daa control unit 10 ülertmr.cne characters in one cell of the memory 42 (block 391) is temporarily stored. Upon receipt of each character, the central unit 5 has one through the block 392 to make a logical decision, thereby making them checks whether the label has been completely fed in. The central unit 5 checks in each individual whether the label is out of the Typewriter 6 coming last characters dn3 fourth characters the brand is or not. As usual, cieae becomes logical Decision by one by the outcome of the due to the comparison operation performed by the CFR command Jump command shown. The execution of this command corresponds to that for the logical ones explained above Decisions match.

Cofern daa received last character not iat the fourth character of the label, the CPU 5 of the typewriter 6 to the control unit 9 a Eefehl to COP, aittela coarse it dns -Jteuergeriit 9 in the directions indicated by the block 389 obertragungszuntLHd brings. Thereupon, the feeds of the next character is bev.irkt in the central unit 5 so that the CPU 5 returns to the represented by the block 359 state · '.Venn dr-s fourth character is supplied, checks the central unit 5 _t if d: 3 ^ uided label ZÜ a ^ of 310 (llook 393) corresponding to the track of the tape-recorded PO rtiJcette · the comparison takes place naturally by means of a CFS commands instead of, which is often repeated oo is detected until the selected label "

BATH ORIGINAL

5098U / 0462

If the operator is pushing the buttons to insert has made a mistake on a label, commands the central unit 5 the control device 9 by means of a command CG? to print the label again JOB? (Block 388), as the result of which the operator pereon the label again enters.

If the label is correctly entered, the central unit 5 executes a command on the cell of the memory 42 in which the address 11 ... 1256 is recorded in the memory 7 of the first block of the command group entered. Ir.n The central unit 5 commands the reading of this cell acc memory 42 and then, with the aid of a command TRA, transfers the address entered therein into the cell of the memory 42 corresponding to the second character of the jump commands of the load command group Central processing unit 5 carry out the operations represented by block 386 (Pig. 19). The cell identified by the 3 character contains the address I1 ... block 3-jt (? ig. 20) shown symbolically. Thus, it is clear that Rich in accordance with each of the keypad switch fl-z -oher.cn label reinrrtirrn JTE the address of the first instruction in the block can be changed with the entered label, LO that the corresponding block selected by the label in the memory 7 is transferred to the memory 42 kr.n. Γ .n-; Ch transferred the central unit 5 the selected block with the help of the nnh..nd of iig. 19 and represented by the block 386 s / nboliseh (Figs. 19 and 20) in the memory 42 ·

Collapse takes place when the pressure is started up the transmission of the initial commands (block 331 after ? ig. 19) in the memory 42 instead of the load commands

509844/0462

BATH ORIGINAL

- 80 -

read out the tape memory 7 (block 383), and finally "load" the last-mentioned commands the selection commands in memory 42 (Hock 3S5), if no label has been selected by the operator. If these commands are loaded, äc.3 ! of the label JOB? (Elock 3L3 according to FIG. 20) instead of polly, the operator selects a group of work commands by writing a label. Pie "Au3iV3hl" commands select the address of this group between the various work3 commands assigned Groups and supply the address to the load commands (block 394). Finally, the load commands load the selected command group into the memory 42 (ig. 386), the result of which they can be executed by the central unit 5.

If a text is to be recorded, the operator guides over the roller of the typewriter $ (? Ig. 1) a truck or Cchrelbbogen and press the start button of the keypad 8. In this way, the Central unit 5 set so that they the start commands, the load commands and the selection commands in based on 19 and 20 in the manner described in the memory 42 (FIG. 2), then control the selection commands dos printing of the label "JOB?" through the typewriter 6. Then the central unit executes by means of a command COP in a manner known per se of the typewriter 6 to a command "return to beginning with line transport".

Tie operator then on the typewriter, a label "HSGI" (ELOCK 410 according to Pig. 21), which adjusts the central unit 5, that it in the blocks B? 1 ... ΞΡ256 the Federal 310, a group of so-called "Aufzeichnung3 "Commands (block 411) and transfers them to memory 42. Liese are suitable for pre-setting the arrangement of the edges of the hand and for controlling the

BATH ORIGINAL

50984W0462

- 81 -

Drawing what was then written on the typewriter Text in tape storage 7. Run the record commands namely to the central unit 5 the addresses of the blocks E1 ... E256 of the tape 310 (Pig. 14), in which respectively the typewriter lines or lines of print are recorded should be »

For this purpose, each of the tracks P1 ... PH of tape includes 310 designated an ice Tebellenblock particular block · Ti (cer table block is located on each track at a predetermined location and by the central unit 5 in more detail hereinafter described manner by means of a Adresre accessible, which is kept unchanged during the entire operation of the printing length. As an example, let us assume that the table block of each track P1 ... PÜ (Fig. 14) is the respective block B1. Characters formed so that the first 64 characters

512 bits included These bits are in pairs , each of which is assigned to a tenant block B2 ... B256 is. Genr.uer geoa. ^ T is the first bit pair of the the track? 1 of the recorded table block B1 is assigned to the same table B1, the second pair to the block B2 ... etc., so that the 256th pair is assigned to block B256.

Γ.9 the two Eit3 of these pairs assume four configurations künr.en, with each of these configurations is an information forward connected on the corresponding block «More precisely, the meaning of these information words summarized in the table belowί

first bit second bit meaning

0 0 block free and recordable

1 0 'Elock occupied and recordable

0 ι 1 ι Block free, but not capable of drawing

1 j 1 iElock cannot be used

509844/0462

- 82 -BAD ORIGINAL

The first combination indicates that the block is free and recordable and can therefore be occupied by the data. The second combination indicates that the Elock enlivens or, by deleting the Eaten contained in it, can be recorded 'iT.dea "510 or is not recordable as a result of a /.brieb3» This prevents any line of text from being lost because it is recorded in a destroyed block. »The last combination is used to indicate that the block is not can be recorded, if you do not want to change its content, as for example in the case of table blocks

After the first 64 characters of a table block, a group of three more characters is recorded which is used for moral table blocks the same 3ind · Ea9 first of these characters indicates a selection command COP, which, as above mentioned, a track P1 ... PN of the .V-ajnetband 310 select know This COP command is used as follows will be explained in more detail in order to define the Cpur containing the first free and recordable lock. Eaa second character of the setting group gives the address of the first free and recordable block, while 3 the third dna label on the tape cartridge indicates the this Elock belongs to "The first two called" Indicators " Characters are sufficient to us the acrease of the first indicate free and recordable blocks of the tape, while the third character in the case of simultaneous Use of a variety of cartridges can be used and not considered here v.-ird. of course it will Indicator after each recording in deai table block in to be described in more detail below on the. brought up to date «

BATH ORIGINAL

509844/0462

The first of the "record" commands is a broadcast command CO? directly to the control device 10 of the tape store 7, by means of which the track P1 of the tape 310 is selected vni the control device 10 in the Leoe state 358 (Fig. 18) Irir.rt. If the address corresponding to the table block B1 of the track P1 is recognized, which, as mentioned above, cannot be changed, the "record" commands control the clearing of the table block · this state is symbolically represented by block 412 (Fig. 21). The table block B1 corresponding to track? 1 is accordingly transferred by the central processing unit 5 to a zone of the memory 42

causes one contained in the "Record" commands Jump command that the central unit 5 executes a jump to the cell of the memory 42 in which the first character of the indicator has been recorded · This cell is always regardless of the table block the same, since the characters defining the indicator unite have a fixed place in the table block, which is known is always recorded serially in the same zone of the memory 42

If the first three characters of the indicator are a command COP for selecting the track containing the first free and recordable block, the address of this block is also recorded in the next cell of the memory 42, so that the first free and recordable block capable block of the Γ '.rz store 7 is marked in this way · This state is symbolically represented by block 413 (Pig. 21).

L: it the help of the selection command CO? the control unit 10 of the tape store 7 in the same way as described with reference to Pig 9, brought into the address reading state (Bleck 414) A selection of the one indicated by the indicator

B098U / 0462 BAD OR ₁ G ₁ NAL

- 84 -

- Sh -

Free and recordable blocks can be found in using Pig. 18 takes place (block 415 according to Fig. 21).

Based on the address of the free block, the central unit 5 then selects a series of 23 free and unrecoverable blocks in the following way. With the help of a command THC, it transfers the address, which has been adjusted by the indicator and has been converted into a unit, into a cell of the memory 42. This new address determines the tone block that follows the tone block embroidered by the indicator. The central unit 5 then checks, on the basis of the contents of the table block B1, whether the data block determined by this address is free and capable of being recorded. This is because it uses a command CDC to check whether the bits of the table block corresponding to this address are both zero. 7ert have.

If the block identified by the new address is occupied, nr-.ch is the result of the comparison bit L 0. The central unit 5 carries out a command THC su ?, by means of which it uses the /.drense de3, which has been increased by one unit Animate blocks transferred to another cell of the memory 42 ^: 'τΛ · Π ° the same operations as described above are then repeated in order to judge whether the block with this last address is free and capable of being recorded. Unless dee the result of comparison FOFitiv (2it E "1), characterized the central processing unit 5, the new address in the memory 42 in two stages reputation · In dr-r first step leads the central unit a conditional branch instruction euf a memory cell sus in which a Command IRL is recorded. In the second stage, it uses this command to transfer the address following the address given by the indicator into the last cell following the last cell occupied by the Tsbellenblock

BATH ORIGINAL

509844 / CK62

- 85 -

Memory location so that the second block of the 23 blocks being searched for is recorded. The operations just described are represented by block 416 (Fig. 21) CTina-nenfarjsend. The operation is repeated for the blocks which may be located on the tape 310 in separate locations. On ee ^'7 else, the CPU 5 selects a group of free and eufzeichnungcfähigen Bntenblocks. The number 23 for these blocks has been chosen because this is usually the number of writing lines contained on a typewritten sheet.

If the number of free and recordable blocks is less than 23, the central unit 5 uses the next Aurnvnhlbefehls COP to read the ^{table block belonging to the n:} icboten track, including always delivering 23 free blocks. In order to determine whether the free blocks are less or more than 23, the central unit 5 transfers the table block, which corresponds to the data block following the block denoted by the Ir. u-execution of a 3 command CDC to check whether these Eits pile ITull bits and 46 in the number. If this is the? " to read the table block of the next track.

represents the central unit 5 dao control unit 9 of the Cohreibxp3chine 6 with the help of a command COP on the He ^ fm ^ szuat ^ nd a. Then guides you through the following Command CAP of the input circuit 12 '(FIG. 14) the address of the first free block. Then the input switch commands

4/0462 _BAD ORIGINAL

device 12 'of the typewriter 6, as described above, the printing of this address on the left corner of the Loger.3 under the label IiIiI (block 417 n & cb ii £ 21) with the aid of the selection command recorded in the first character dc3 indicator C ^? The central unit 5 brings the control unit 10 deo Ti ndap eicaer3 7 into the state for receiving and selecting the free address (block 418) CJAP assigns a group of four spaces to, among other things, cause the :: chrcibn:? Ischinenwijr, en, among other things, to prevent the :: chrcibn:? Ischinenwijr, en. At this point the operator can use the keypad 270 of the typewriter 6 to enter a code which corresponds to an operation to be carried out by the central unit during the subsequent printing3 of the text on the bridging or writing line. The operations which the central unit 5 can carry out include the marking of the right edge of the line, centering and underlining

£ u! 3 cause the inputting of the corresponding to these operations Codea the operator does the lin-step-h-check dos keypad 270 (lc ^ ical decision 417 * n! 3Ch Fig. 21), which means that I am the typewriter carriage 6 moved back one step.

Ta mn feeds the control unit 9 of the typewriter 6 to the central unit 5 with the help of a CIP command the code for ¹⁵ "In ^ step-FJicktastung". the Speichereirvirinh'sschgltur.s 47 under the control of command eir.cn CPR. In effect it results in the central unit 5 to the control unit 10 a iefehl to CIP, ana is fiuf the Übertrfigun ^ szustr-nd einytollt "Γ2 the second character dea command CL? an address of the cell dea memory 42 is «in which the coming from the control unit 10

,, _, " R, BAD ORIGINAL 5098AA / 0A62

- 87 -

Character 'is to be recorded, this is a character not recorded in the memory cell following the cell in which the address of the print line is recorded had been·

D-.rvjf, the operator can operate on the keypad 270 (ir.o key of a group of alphanumeric keys that are assigned to the operations that the central unit 5 is to carry out 5 which records this code in the selected cell of memory 42 (block 417 ^H ).

individual actuates the operator to determine the right edge of the line the key of the capital letter L after the "one-step backspace" key on which so much Zr.i? Chenriiume how existing characters follow from which a desired print line is to be formed. The central unit 5 niim.t the printed character L and crosses over it in the manner described above in a predetermined Cell of the memory 42. The command following the command CDP, by means of which the character L refers to it “Vei ^ e is recorded is a jump instruction to a Another cell of the memory 42 in which a command CPE is recorded. With the help of this command, the Central unit 5 the character L with the possible command characters the printing system »

-er.n this character is recognized, the central unit 5 cit, with the help of another Sprur ^ tefehls counting the π-'ch the character L with the help of successive, by a series of commands THC-controlled operations truncated spaces. Each time a constant expressing the space increased by one unity is transmitted, if for this constant a certain

609844/0462 BADOR.GINAU

- S8 -

a special value, for example 00000000 has been chosen, At the end of the count, the final constant corresponds to the number of the characters entered for this print cell.

Kit with the help of another command TRC transmits the central unit 5 this number in a predetermined cell of the memory 42, as a result of which the length of the line remains recorded in the memory 42

', If the operator gives further commands, for example for centering titles, underlining, etc. oie re-enters the one-step back key, to the actuation of the respective alphanumeric key folct · In one of the ways described above Type is the code corresponding to this alphanumeric character in a corresponding cell of the memory 42 recorded instead of in the cell following that in which the address of the line is recorded

When writing the character L or the one assigned to the commands other alphanumeric characters, the typewriter trolley fetches the space between the one-step recovery back up and is therefore at the beginning of the line S3 division.

Now the operator gives the characters of a line of the text to be recorded on the keypad 270 (Pig. 14) which is then printed on the sheet next to the address of the block in which the line is to be recorded and is advanced by four steps. These characters are now serialized as described above in a first register 42 '(Pig. 2) of the memory 42 is transferred which is used for this transfer (block 419 according to FIG. 21) is reserved At the end of the line, the operator presses the key for the carriage return with line transport,

BATH ORIGINAL

509844/0462 - 89 -

el3 άοεεεη result of the ^ / a ^ en returns to the beginning crigsotellurig. AuCerJem the appropriate code is recognized by the central unit 5 with the aid of a command CEC, the v / which usually brings the central unit 5 to a next working state with the help of a conditional jump command

In this working state, the central unit 5 ensures the transfer of the line recorded in the register 42 '(FIG. 2) to the second register 42 "of the memory i2 and the completion of the data block contained therein with the function characters and the start-up of the Search for the block of tape 310 in which the completed block is finally to be recorded, more precisely, with the aid of the command TRA, the central unit 5 transmits a command COP for track selection, the address of the next free block and dae in the first three characters of the block label ZU3 corresponding to tape 310 indicates the order of the blocks in the following processing operations, for example for successively writing the different lines of a given text. namely, the command TRA can be used for any block without change d the second character of the command can be used which determines the address of the cell from which the three function characters to be transmitted must be taken. Since the data blocks are then also recorded in the same cells of the memory 42, the third character of the command TRA is always the same

by means of a further command TRA executed afterwards the central unit 5 then transmits the number of print characters, which the block that has been recorded in memory 42 may contain to the fourth cell of the data

509844/046 2 BAD original

blocks. The central unit 3 then transmits with the aid of a next command TRA the currently entered number of lines to the fifth cell of each data block. This number is determined by the central unit 5 in the same way counted as the number of spaces described above. In this case, however, the command to niiileit.cn of payment is indicated by the sign "carriage return αi L line transport "given.

Then the central unit 5 transmits to the sixth cell of the block the code of the operation to be performed on the line (Centering, underlining, etc.). Finally erreeimot the central unit 5 in any known per se './ise the result of the entire data block iV.ritatszeichen and transferring it to the seventh Ze] Ic des -Ie!;:; itself. The operations just described are in the block Ί2Ο (Fig. 2l) shown in brief.

Simultaneously with the completion of the iilook just described, the central unit 5 brings no help from an Ar. rw'usl -! xMchls COP the control unit 10 of the tape memory 7 in the state for reading the tape 310 (block Yj8 according to FIG. 1β). In this way, the control device 10 causes the memory 7 to search for the address of the block in which the print line previously entered on the keypad 270 is to be recorded in the manner described above. While the control unit 10 is looking for this address, the operator enters the second print line on the keypad 270, which is transferred to the register 42 '(FIG. 2) of the memory Ί2 in the manner already described.

The central unit 5 thus leads at the same time with the completion of the block and, corresponding to the first print line, the recording of the one corresponding to the second print line Blocks in register 42 'and the search on tape 310

- 91 ORIGINAL BATHROOM 509844/0462

After the block, ous, in which the "opened" in register 42 and the block corresponding to the first line of print is to be recorded "by moving a Interruption of the completion of the data block causes. Namely, the control device 9 of the typewriter 6 or dr-.s control unit 10 of the tape memory 7 of the central unit a sign, lead them in it, as already advised, an interruption. The central unit 5 then interrupts the completion in progress of the data block recorded in the register 42 ″, including that from one of the two control units 9 and 10 To record characters. The central unit 5 then takes the completion in progress back to

In detail, the time taken by the control unit 10 to search for the block on the volume 310 in which the content of the register 42 "of the central unit 5 is to be recorded changes according to the position of the block p. . uf dom Bqnd This time can be greater than approximately be equal to the average time which compels the operator loading to the next line on the keypad 270 a-7u _6;. Also it should be noted that the controller 10, as described above, reads the addresses of the blocks recorded on the! • ■ lid 310 one after the other until it recognizes the address received from the central unit 5. As a result, the maximum time required to read the addresses depends on the feed speed of the tape and its length. When the operator has finished entering the second print line, he again presses the "./egenrUcklsuf cit Zeilentrensport" button n, the first rruckseile ia li-erister 42 ″ of the memory 42 entr-r-computing data block in the tape memory 7 and the transfer of the second print line from the register 42 * of the memory 42 into the register

509844/0462

ORIGINAL BATHROOM - 92 -

42 "eua. The central unit 5 then returns to the the record shown in blocks 417 and 418 of FIG 3ZU3tand back. The operator can now start typing the third line of print as the result of which is the operations described above repetitively v / ground «. These operations are through the block 421 (Pig. 21) shown symbolically.

When the operator finally stops entering the Text to LY.de, it informs the central unit 5 of the end of the text. To do this, press the next To move to the last address, press the one-step backspace and then the key for the capital letter E on the keypad 270 (logical decision 423) then the central unit recognizes 5 the code assigned to this key and consequently transmits the first three with the aid of a command TRA Characters of the block assigned to the last print line in the cells of the memory 42, in which the 65 ·, 66 · and 67 * Characters of the table blocks are recorded.

'never been described above, the table block, after the operator has d _aa label REGI entered on the keypad 270 has been recorded in a register of the memory 42, sls the result of the indicator is brought to Diere ./eise on dtn date and again contains the address of the first free and recordable block (Elock 424 after Pig. 21), so that if a subsequent text is to be recorded, the central unit 5 again supplies the address of this block in the manner described above third characters of the command TilA are always the same without reference to the table block recorded in memory 42

Since the table blocks are always recorded in the same cells of the memory 42, the third line is

BATH ORIGINAL

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chen the command TRA, which represents the address, into the the content of the cell identified by the second character is to be transmitted, always the same and sonit valid for every table block. Accordingly, the second character of the E command always remains unchanged since the addresses of the free blocks are always recorded in the same cells of the memory 42.

It is therefore clear that the central unit? the address of the first free and recordable block, which controls the recording of a text line by line, in each data block the address of the next data block and the code of the print line recorded in this block "inserts the type of operation to be performed when it is printed and after each recording the value of the indicators renewed

It should also be noted that when the operator noticed a typo when printing a line that Interest rate backspace key pressed. The one assigned to this key Command character is recognized by the central unit 5, the interruption associated with the command the prevention of the increase of the addresses by the central unit in the described way, as think the result of the character entered after that of the character previously recorded in the memory 42 occurs.

Finally, if the operator intends to underline one or more words in a print line, he presses the one-step back key to print the address corresponding to this line and then the Caste corresponding to the Euchet'th. Then he records the text of the line and actuates it when you reach the YTort to be underlined instead of the space bar the underlining

509844/0462 ^{BATHROOM 0RIGINAL}

t ^ .ste. Then she draws that or those to be underlined. At the end of the .7orte3 she presses the underline key again instead of the space bar. The codes corresponding to the underlining key are thereby recorded in the cells of the memory 42 in such a way that they identify the beginning and the end of the words to be underlined.

lie Eruckanla / 7e allows you to change the content of a Text, for example, by adding or removing one or more lines.

If the operator wishes to add one or more lines to the previously printed text, he or she gives up Enter the label RiXiI on the keypad 270 of the typewriter 6. This i'nrke is recognized by the central unit 5 and effected in anhnnd by Pig. 19 described ..eije die l'transmission of the group of "record" commands tape memory 7 to core memory 42. These operations are summarized by block 10 (Fig. 22). Then the line to be inserted into the text or the group of lines is recorded in the tape memory 7 in a dea record of a text similar « (Block 422) as described above.

In order to insert the lines you have now entered at any point in the already recorded text, there are the operator on keypad 270 the label I'üM a. More precisely, this label is produced in above described way the transmission of a group of as "change commands" or correction commands (block 42.6) designated commands from the tape memory 7 in the Core memory 42

BATH ORIGINAL

- 9r> -

5098A4 / 0462

The change commands are used to change the sequence of the / dreree the dr-tteriblocks so that they are during the (hereinafter to be described in more detail) readout and printing stage from the tape memory 7 in a different order εα be read as the one in which they are recorded have been

Namely, it has been described above that each data block The first and second characters contain the address of the next latenblocks · The change commands affect the content of these signs in such a way that dn2 the address of the following data block is changed. To achieve this, the operator operates η «I enter the MODI label and after returning the typewriter carriage 6 to the beginning on the keypad 270 an alphanumeric command key, for example the T-.ste for the letter "I", followed by entering four labels follows. The first of these labels represents the while the text is being recorded on the print sheet and corresponding to the line of text from which the operator wishes to insert the new text Address

D-s on the next label represents the address of the first line of the Numbers, which are also printed on the print sheet will. The third and fourth labels represent the address of the last line of the insert and the address of, respectively the mscnorms the printing of the previously recorded text which is generally the address of the line following the line from which the inserted into new lines. The four addresses are stored in corresponding cells of the Core memory 42 recorded

BATHROOM ORIGINAL _ 96 -

5098A4 / OA62

The central unit 5 now recognizes the command code I entered (block 427). Ia dieeer code in this case, the linfL; oun £ 3Code I I3T, 5 of a Ci'ii command leads, the central unit by means of a jump instruction to a deal code I (ELOCK 43ö) associated vorbeGtimrste memory cell · In this cell, the first Eefehl is the Group of de: a Code I assigned change requirements are recorded. This first command is a command COP for Aus7 / ahl, which brings the control device 10 of the tape memory 7 into the address reading device (Elock 428). In this way, the data block is selected which corresponds to the first of the four entered addresses from which the insertion is to be made (block 429 after Pig. 22), ie at the address of the data block.

With the help of the following commands CDP, this first block, as described above, is converted into a corresponding Cell group of the core memory 42 transferred.

With the help of a command TRA, the central unit 5 now transmits the second entered address, ie the address of the first cell of the insertion into the cell of the memory 42 in which the second character of the data block that has just been transferred to the memory 42 is recorded, which identifies the address of the following dot block (Elock 430 according to FIG. 22). v.'if the address of the first line of the insertion does not belong to the same track PI ... PK in which the t; us £ ewi ^; .hlte block is recorded, the central processing unit 5 of this Datenblockc transmits course, also in the first character of a COP command for selecting the track to which the Adreaöe the first line of insertion part · Dieee transfer operations are symbolically shown at block 430 ·

- 97 BAD ORIGINAL

509844/0462

It should be noted that the cells of the memory 42 in which the addresses following the code I are recorded, as are the cells in which the selected one is recorded Block of the first address is recorded, are also set · Because of this, have the second and third characters of the TRA commands just described are always the same link, these characters point out exactly the addresses of these cells

The central unit 5 then brings the control unit 10 of the I: - r.depeichers 7 with the help of another selection command COP in the address read state (block 431). As a result, that of the entered third address, ie. the address of the last line of insert, associated data block selected (block 432) · Using the same as above The operations described control further commands TRA the transmission of the fourth address entered after code I, i.e. the address from which the printing of the old text is to be resumed in the memory cell in which the first and second characters of the selected Elocks are recorded.

If the operator of your tape 310 has a line of text or wishes to remove a group of writing lines recorded on it, actuate them after the label MOII key E. The operator then gives two A label that corresponds to the address of the preceding line or to the group of lines that it wishes to remove, correspond to the following line

Now the central unit 5 recognizes in the above-described .veise aen code S and executes a. Jump instruction suf a corresponding memory ©! "-. © from · ;, fiis & Q3 ■ Εϊί-ΐίΒ fie? Öss. Code E contains commands assigned {look 439) · -S-iser instruction

BATH ORIGINAL

- t) S -

50S844 / C4B2

is a selection command COP that the control unit 10 des Tape memory 7 in the address read state d (block 435) brings. As a result, the data block is ousge.vnhlt the the address of the first line of the one to be eliminated Line group corresponds to the previous line · Transferred to it the central unit 5 corresponds to the line following the last line of the group of lines to be eliminated Address In the first and second characters of this block «

In this way, the one of the group of lines to be eliminated the data block corresponding to the previous line the address of the corresponding to the line following the group latenblocks recorded. Consequently skips the central unit 5 when these blocks are removed from the tape store 7 by the operator previously removed group of lines

If the operator intends to add a previously recorded group of lines to the end of a text, enter it on the label L: 0II, then press test T, whereupon the address of the last line of the text and the address of the / nfnn ^ line are entered follows the group of lines with which it intends to end the actual text. The central unit 5 recognizes the code T and goes to the memory cell containing the first of the corresponding commands (block 443) In the procedure already described, the central unit 5 inserts the second address into the first character dee through the first address gekennzeicr.netsn Io.tenblocks a. lieae offered by the printing relief Inge iet particularly zv.ecksaiig zuc Exit examples, a group of different typed called! or circular ait a Standardfor-εεΐ which is thereby recorded for all letters only once *

BATH ORIGINAL

50984 ^ / 0462

- 99 -

It is therefore clear that a text has been modified or corrected v; ird, by acting exclusively on the address characters of Entlocken, without the places at which the four blocks recorded on the B ° .nd 310 are to be distorted. These are explained in more detail below Blocks are removed from the tape store 7 and transferred to the central unit 5 and then on the typewriter 6 in the order requested by the operator. Note that the order of the addresses of the data blocks corresponding to the lines within the group of lines to be inserted or added is changed so that these lines are printed in the order in which they were previously entered are·

Finally, the operator runs through a line of print to replace another previously recorded print line intended, she enters the label LlODI and then actuates the S key, whereupon the address of the The print line to be replaced and the address of the new print line follows «The central unit 5 recognizes the code S and executes a jump command to the memory cell in which the first of the corresponding commands is recorded is (block 444) The first command is a selection command CC? by means of which the central unit 5 selects the track in which the address of the data block corresponding to the print line to be exchanged or replaced is recorded is (block 440)

The central unit 5 then transmits this data block in the above-mentioned manner with the aid of successive commands CJ? into memory 42 (block 441). In the same way, the central unit 5 transmits the data block corresponding to the new print line into the memory 42. The central unit 5 now carries out a series of commands

50984A / 0462 BADORfGINAL

2265Q15

THA, by means of which it transfers all the characters of the second block into the cells of the memory 42 in which the characters of the first block were recorded. The exchange of the characters of the line to be replaced by the characters of the new line takes place on this ^{T 7eice «}

If the cells of the memory 42 in which the two blocks are recorded are location-bound, the central unit 5 can use one and the same instruction TRA to carry out the exchange, in which the address change in each case increases the address of the two Operands by one unit. In this way it is possible to access successively all the characters forming the data block of the new line and at the same time to transfer these characters successively into the cells occupied by the characters to be exchanged. These operations are shown schematically by block 442.

Accordingly, the operator can use the above the operations described process a text according to the requirements, provided that that is, the processing operations involve an integer number of cells.

7. when the operator recorded the dee while reading through it If wrong words are found in the text, the central unit knows them Set 5 so that it corrects the errors "Gen." Or, to put it another way, the operator operates the error button of the operating interface 8, which, as described above, d-a Print the label JOB? generated. The operator then puts the label on the keypad 270 ΡΛΞΓ a, d;: s is recognized by the central unit 5 and consequently inviting a group of so-called "correction" commands effected in predetermined cells of the memory 42

BATH ORIGINAL

- 101 -

5098U / CU62

(Block 445 NaOH Fig. 23) · Then, the operator inputs the address of the DNS pressure parts, which wishes to correct it, a corresponding label _e This address is recorded previously described in "manner in a predetermined memory cell.

The first of the correction commands is a COP selection command, d ^ r dns control unit 10 of the tape storage 7 in the Adreseenlesezuatpnd brings (block 446). If the entered address is recognized, the one it identifies will be Dp.tenblock in the same way as above with reference to the • Modification of a text described in predetermined cells of memory 42 (blocks 447 and 448). Thereafter the central unit 5 prepares to read out the Dntenblock, starting from the sixth character, i.e., skips the five punctuation marks of the data block (block 449). This preparation is done with help of a jump instruction to the memory cell in which the sixth character of the data block is recorded

If the first position of the line is correct (logical decision 450), the operator now operates the interrupt button on the keypad 8, which, as described above, causes the contents of the next memory cell to be read (block 451) so that the Central unit 5 daa begins reading the characters. After reading each character, the CPU 5 checks _t o *> this character is a space, namely using einee command CFR, at which the two operands, the space and the read characters (logical Entccheidung 452).

'fer.n dr.s character read is not a space, the Central unit 5 a jump command to a cell dee Memory 42 in which a command COP immediately

BATH ORIGINAL

- 102 -

509844/0462

the control device 9 of the typewriter 6 is recorded. As described above, the B3 command COP dr.s prints out the character read (block 453) so that dn3 is printed first "location of the line in which the error was detected. If do3 If the character taken is a loose, the central unit 5 feeds a command COP to the control unit 9 of the control unit 6, which, by acting on the suspension 12 * (3Mg. 14) of the control unit 9, jerks in the described manner adjusts (block 454).

Insofar as the 'before the following 77ort' is a right-hand location printed on dn9, the operator presses the interrupt key on the keypad 8 _t again, which generates the readout of the cell following the one in which the blank is recorded, with the central unit 5 returns to the state represented by block 451 * In this way, the words forming the selected line are printed one by one «

■ Venn the operator determines that dao to the printed place following .Vort the wrong word (logical lint decision 45 ^J '.';. "They are i.nstelle operating the Unterbrechertnste on the keypad 270 of the right .Vort one, dfcs is recorded with the help of the command COl 'in the central unit 5 Ubertrcp.cn and then in the cells dea memory 42, in which the wrong rVort recorded w.-3r (block 455) If the ίτιζτιϊ.Ι that of the correct V, If the characters forming the location are greater than those of the characters of the wrong - / location, the operator must not only enter the correct location on the keypad 270, but also enter all other locations until the line is completed.

77 when the last drawing of the line has been reached (logical ! Decision 456), i.e. when the last free cell of the

BATH ORIGINAL 50984WCU62 -103-

If the block of data has been occupied, the central unit 5 goes over to the drawing of the line changed in this way in the memory 7 for this purpose, the cell following the cell occupied by the last character of the data block contains an evaluation. hlbefehl COP, which brings dna control unit 10 into the receiving state »Then the corrected data block is saved in the recording of a text based on Piß. 18 is transferred in a corresponding manner to the same location in the memory 7 in which it was previously recorded (block 457).

As a result, the operator can use the operations just described to make any text correction, provided that he does not enter more characters than the maximum number of characters that can be recorded in the block.

After the operator has made all corrections or changes to the content of the text and the appropriate corrections of errors, he can order the printing of the processed text in "fair copy ¹¹ ". which, as described above, produces the printing of the label JOB? Then the operator enters the label EDIT on the button 270 (? i? ', · 14), which is recognized by the central unit 5. A group of as "Print ·· commands denote E commands from the tape memory 7 to the core memory 42. These operations are represented by block 460 (Pig * 24) 3CheaatiFch. After the EDIT label, the operator enters the label corresponding to the address of the beginning line of the first line of text to be printed on the keypad 270. This operation is symbolically represented by block 460 * (pig. 24) ·

BATH ORIGINAL

509844/0462

- ΙΟΊ -

The first command of the group of pressure commands let a command COP directly cn dn3 control unit 11 of the control panel 8. The second character in this command is COP eight bits with level 1 are now formed, this being Command as described above, the Display lamp de3 keypad 8 causes. That way the operator is attentive to the fact that You need to change the print sheet · Now you are over the / 'alze of the typewriter a "clean copy sheet and press the interrupter. The bo brought about Interruption causes the lamp and to go out also that the central unit 5 executes a jump command to a memory cell assigned to the keypad 8 In this cell, a COP selection command is immediately available recorded on control unit 10 of 3 tape storage 7 * ! he selection command COP loads the on the keypad 270 entered address in a predetermined cell of the memory 42 and brings the control unit 10 into the address reading state TTenn the thus recorded in the memory 42 Address is recognized (block 462), the data block determined in this way is removed from tape 310 eus in transmit a predetermined group of cells from the memory 42 (block 463).

With the aid of a command CPR, the central unit 5 sends the sixth character of the block entered into memory $ 2, which indicates the particular operation to be carried out on the cell _: (logical decision 4C4). If the sixth character is KuIl, the central unit 5 carries out the so-called "alignment" of the line in a manner which will be described in more detail below (block 465). Then, with the aid of successive commands CAP, the characters are fed to the control device 9 of the typewriter 6 (block 466) which, in the manner already described, ensures that the actual line is printed.

BATH

509844/0462

- 105 -

If the sixth character of the block is not zero, the central unit 5 compares this character with the possible characters assigned to the various operations to be carried out on the line and drawn in predetermined cells of the memory 42 to goose with the group of return commands suf (block 467). If the operation to be carried out is the centering or underlining of the characters in the line, the central processing unit 5 carries out these functions in a manner to be described in more detail below (blocks 467 'and 467 ¹¹ ). fed to the control device 9 of the typewriter 6 in order to be printed

At the end of each line, the central unit 5 checks whether the next block contains the end-of-text character E (block 469). ". If this character is not recognized, the central unit 5 determines via memory 42 whether or not the line printed is the last on the page (block 475). If you is not the last line, the central processing unit 5 repeats the same operations as described from block 461 off for the next block of data, the address of which is identified by the first three characters of the previous block so that the central processing unit 5 carries out the printing of all lines of the recorded page in sequence.

It should be noted that the cells of the memory 42, in which the first three characters of each block are recorded are always the same, since all blocks are sequentially recorded in the space occupied by the preceding block same cells · In this Heise carried out the operation of the Addressing "each block in the manner described with reference to FIG. 18 always with the same commands"

ORIGINAL BATHROOM - 106 -

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On the other hand, when the last line of the page has been printed, the memory 42 reports the end-of-page status to the central processing unit 5 (logical decision 475). The central unit 5 brings itself into a V / irtezuot-nd (block 468) and causes a command CO? directly to the control unit 11 of the keypad 8 the renewed illumination of the indicator lamp. At this point, the operator is warned that he must change the sheet. In addition, the central unit 5 loads the address of the harvested line of the new page into the memory 42 ( block 460 "). After replacing the 3 Eogena, the operator presses the interrupt key again, the result of which the operations for printing the new page are repeated.

? / enn finally the central unit 5 of the text endc character E recognizes (logical decision 469) »guides them to stop the typewriter 6, as a result of which the system returns to the halt or idle state (Block 476).

As described above, each function block contains 3 characters related to the length of the print line to align the lines. Said Gennuer ribt da3 fourth Zoichen which is nnchstohend denoted by III, the number of characters sn, which may contain the block, while the mark ύεβ f'nfte Arznhl ME nngibt of characters currently Icj ELOCK contained. When a data block is transferred to the central unit 5 (Llock 465 nnch Pi ^. 24) and its sixth character Hull iot (loginche decision 464), the central unit 5 compares the fourth and fifth characters of the block with each other with the help of a command CFR ( logical decision 470 of Fig. 25). If these characters are the same or the same, printing of the block is commanded from the seventh character as the result thereof

BATH ORIGINAL

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- 107 -

Function signs are not printed (block 4G6). It is achieved with the help of the commands COP directed to the control unit 9 of the typewriter 6, which bring the typewriter 6 into the ΙΙτρ catching state, and with the aid of commands CAp, which the characters from the memory 42 in air, control unit 9 of the typewriter 6 transferred. Las sTTcite characters of the command CAP specifies the address in the memory 42 corresponding to the seventh characters of each block.

fer.n the comparison between the fourth and fifth characters d <? 3 Elochs is negative (bit E = 0), the central unit 5 checks, starting from the seventh character of the block with the aid of a command CIC, whether the character öes data block is not a single space is (logical division 471). Characteristic of this character is not a single blank, that is, if it is a print character or if it is followed by another Space (Bit E * 0), the CPU 5 performs a jump command to a cell of the memory 42 nils in which a TRA command is recorded, by means of which it transfers the checked character into a pre-determined cell of the memory 42 (block 472).

'. * cr.n dp.9 characters is a space, the central processing unit 5, after transferring the empty space, now executes a jump command to a memory location in which a further TRA command is recorded. With the aid of this latter command, the transfer of a further space takes place in the memory cell following the cell into which the first space has been transferred (block 473). Then the transfer of the characters completing the data block to the following takes place let cells have been held, as described on the basis of elock 472nd! inch completion of the transfer of data transfers, the central unit 5, the puncture mark in the appropriate

ORIGINAL BATHROOM 509844/0462 -less-

Cells. In each, dno sign NS becomes one unit transferred more (block 474).

With the aid of these operations, the central processing unit has accordingly transferred the interblock me from the first register of the memory 42 to a second register of the memory 42, but with the addition of a further space after the first space. In this way, the back line UE has been extended> a space in between

Γπη-ch, the central unit 5 again compares the characters KI and KE with one: .nder (block * 70). If these characters are not the same, they will not prevent the block from being transferred from the. first in dps second register, and draw in the detected call of the second space, which irt the first single gap, following passage another space inserts · lie central unit 5 repeats this Vorgr.ng until dne mark NE is equal to the sign KI is. If this occurs, the line with the aligned right margin is printed (block 466).

? cr.n, for example, since the storage space of a block of acts amounts to sixty characters (KI «60) and it contains fifty-seven characters (ITE = 57), the central unit now performs c.io alignment in three steps,» ie it in cer The following Tr.belle nrrrgebcn int, in richer mean: i; r the difference between ITI and Ki ', S1 ... S5 the space between the first and the second word of the line, or between the second and the third word

step III 57 3 S1 S2 S3 S4 S5 0 60 58 2 1 1 1 1 1 1 60 59 1 2 1 1 1 1 2 60 60 0 2 2 1 1 1 3 60 2 2 2 1 1

5098A4 / 0A62

BATH ORIGINAL

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If after all present in the truck line spaces the difference AI deviates SinfUgen a space nor 0 · On cause honors the central unit 5, the Yergleichaßlieder with dom space between words in the 7, ^r eioe _t that the two consecutive gaps are now gekennzaichnet this . '' ei.. ^ e adds oie av / iachen the line forming v / loci again a space, by repeating the same operations \ Tie them with reference to FIG. have been described 25th Eemzufolge is by means of these operations, each line is printed with the right margin line aligned with a pre-ventilated position

.7'enn after adding two spaces to the space between the guards the length of the line has not yet been reached is, for example at the end of a sentence where the text ends well before the end of the line the process of aligning is discontinued.

'. As described above, the end-of-line position by changing the character NI. By matching Changing the character M can for example in one Text can be left a space to insert a figure, or text can be in a variety of parallel to each other Columns are printed ustt

If, as described above, the sixth character of the block is liull, the central unit 5 compares this character with the help of a command CFR with the possible punctior characters (block 467, according to Pig. 24). If the central unit 5 recognizes, for example, a ^{centering character printed out by the Bacha letter H} C ", it compares the characters IiI and NE with one another under control of appropriate commands such as aligning. If they are different, it causes the transmission in a corresponding manner

ORIGINAL BATHROOM 509844/0462 - no -

of the data block ou3 atm first in the second register of the memory 42 with the insertion of two spaces, and one before the seventh character of the data block and the other after the last character occupied by the information. After each transmission, it then destroys the character KE by two units. When the difference KD between KI and HE is finally zero, it orders the printing of the contents of the block, which is consequently centered.

./if the central unit 5 is the one indicated by the letter "3" recognizes expressed underscores, commands it initially the printing of the line recorded in the block " Then, with the aid of a command 3 COP, it gives the control unit 9 of the typewriter 6 a command to return the carriage without line transport, as the result of which the carriage is brought into its line start position.

Then the central unit 5 checks with the aid of a command CIC whether in the corresponding to the first part of the line Cell of the memory 42 an underscore 3 character is recorded. .When this sign is recorded, commands the central unit 5 with the aid of a command COp das supplied to the control unit 9 of the typing machine 6 Print the underscore character until it is reached using successive, After printing each underscore character executed CDC commands that at the end of the underline Word recognizes recorded sub-relch characters

tfif the central unit 5 recognizes this last-mentioned character, it feeds the control unit 9 successively blanks so that it advances the query until it enters next underscore character recognizes «If this

ORIGINAL BATHROOM 509844/0462

occurs, the CPU 5 performs the same operations as described above to underline the following V.'orter nus. If there is an underscore at the beginning of Elock3 and one are recorded at the end, the CPU 5 naturally underlines the whole corresponding one Line in the manner described above. When the -Vggen arrives at the end of the line, in the manner described above '.', 'otherwise automatic carriage return with line entry ordered

Ger ^.: I3 a variant of the invention, the command S can be before the; Record the print line in the commands corresponding to the REGI label. In this case, the underlining mark is only used to indicate the ends of the words to be underlined and not as a self-contained printing mark.In this case, printing is carried out under the conditions described in the previous case.

According to a further variant of the invention, the underlining character can cause the characters to be underlined to be recorded in such a way that they are assigned a different code than the characters without underlining, for example by using the eighth digit of each character for this triangle. In this case, while the fair copy is being pressed, the Zf-central input 5 decodes these characters in a known v'eioe, in which case it succeeds for each character by printing the underline symbol, one-step backscanning and then printing of the character commands ". If the underline symbol is assigned to a so-called dead key, ie a push-button that does not command space, the command for one-step backward keying can be suppressed after each underscore character"

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According to a further variant of the invention, the Addresses of the print lines are made up of two characters instead of four. In this case, the central unit 5 automatically supplies a number that identifies the text, to which the line belongs inputs, the printing of a number indicating the first free ellock of the tape 310 · The subsequent blocks are numbered consecutively until the end of the text to be recorded is reached.

The operator responds to this when she gives a Print Line intends to select first the characters that characterize the text and the two characters that mark the line within the boundaries of the text.

According to yet another variant of the invention, the various programs of the printing system can be selected by the operator by only clicking on the Control panel 8 has an effect. In this case neither the label JOB? nor the various labels that identify the corresponding programs (REGI, MODI, etc.) printed by the typewriter 6

According to a still further variant of the automatic printing system, the function symbols described above, such as the characters "L" (line length), "S" (underline), "E" (end of text), etc., for the purpose of facilitating their use by the operator be changed.

In Table A below is a brief example of the operation of the plant with the main ones above

ORIGINAL BATHROOM 509844/0462

operations described. In detail, the table A shows the recording of a short text under the control of the command group REGI · Table B shows this text in "fair copy ¹¹ ·

K ?? ch to print the label JOB ?, which can be activated by pressing the start button of the keypad 8 is achieved, the operator enters on the keypad 270 of the typewriter 6 the label R "GI, which generates the automatic printing of the label K4C6, which is indicated by the indicator of the first free and recordable data block represents the address delivered

The carriage then moves forward by four steps, whereupon the operator does not press the W; .- backward the "C" key is pressed »to indicate that the entered print line should then be centered. Kachdea the operator has entered the print line on keypad 270, presses the carriage return key with line transport, which simultaneously returns the? / agent to the beginning of the line, and prints the address i £ 4C7 and the subsequent advance of the wagon among other things causes animal steps ·

The operator then gives the other print lines in the specified by the addresses ii4C7 to M4CC Blocks are recorded

In line M4CD, the operator presses the one-step backspace key and the E key to indicate the end of the text, among other things «

ORIGINAL BATHROOM 509844/0462

TABLE A

JOB? !

REGI ι

M'iCG CA general compliance of the system

M'iCy This selection of program steps is neither

M'iC8 complete yet definitely.

M'iCB From a work standpoint, we are essentially

M'iCC chen interested in the programs. [

M'iCD E '

JOB? FAST M '* C8 completely still definite.

M5C1 It should be noted in particular that in

M5C2 Consideration of the use of word processing

M5C3 the planning department manages new programs

M5C'i specifies. <

MODES IM'iC8 M5C1 M5C4 M ^ CB

EDIT MdC6

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Then the operator heats the text and provides, note that they place the word "definitive" on line M4C8 "Definitely ·· wrote to make the correction presses the start button again, so that the label JOE? printed out again and now the label PAST is entered

.When the weapon has returned to the beginning, press the Operator four times "one-step backspace", whereupon Enter the address IÜ4C8 on the keypad · Then give the command press the interrupt key to start the printer of the first location of the line, whereupon she presses the interrupt button again, so that the second location is printed is and so on «If the word" still "preceding the word" definitive "has been printed, the Operator, instead of pressing the breaker key, the word "definitely", which is therefore instead of the wrong one Word is recorded

the operator wishes to insert a paragraph in the text that has just been recorded they the start button that starts printing the label JOp? generated. Then she enters the label REGI, the the printing of the address M5C1 generates · Thereafter, the operator gives the lines of insertion from M5C1 to M5C3 a. Then she presses the breaker key and again are there after the label JOB? the label HODI. As a result, the Y / pgen returns to the beginning with line transport from, whereupon the operator enters the letter I, followed by the addresses if4CS, M5C1, l'.5C3 and K4CB · The Adrerse L! 4C8 is the address of the line after which the wish to insert a new paragraph · 115C1 and Ü5C3 Bind the Addresses of the first or last line dee to be inserted Paragraph · M4CB is the address of the line «τοη of

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5098ΑΛ / 0Α62

she wishes to resume the recorded text. The operator then depresses the breaker button again and gives after the label has been printed out JOB? the EDIT label followed by the M ^ Cb address corresponding to the first line of the text.

Finally, the operator changes the sheet and, by pressing the interrupt button again, commands printing the "fair copy" text shown in Table B.

TABLE B.

General validity of the system This selection of program steps is neither completely yet definitely. It is particularly noted that when considering the use of word processing the planning department defines new programs.

From a work standpoint, we are essentially interested in the programs.

The heading has now been printed centered; the remaining lines are to be aligned with a total of k5 characters, for example. The first line of the text is already aligned. In the second line, the central unit 5 inserts two spaces in the two spaces between the words, whereupon the alignment process is ended. Eight spaces (additional spaces) are inserted in the third line, and

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four in the first space and one in each of the other four spaces, while in the fourth line only a space is inserted in the first space and so on for the remaining lines.

Patent claims:

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509844/0462

Claims (9)

Claims 1. j word processing system, consisting of a manual to actuating input device including devices for inputting text information and a text adjustment signal (Character "ο" in the 6th cell of the block), a memory device for storing and reading the information on a recording medium, a printing device, that of the input device for printing the inputted text information in various for characters certain lines is controlled, each character having a thickness of at least one thickness element and manually operable means for limiting a predetermined line length to that of a total number of thickness elements of the text to be printed, characterized by a control unit (5), the limiting device (2) and the adjustment signal (characters "ο") to control the Memory means (10) responsive to read from the recording medium (310) the text line by line and for each to add at least one empty thickness element to at least one spatial space of the line in the line that has been read, in such a way that that the total number of thickness elements contained in the line in accordance with the predetermined line length is brought, whereby the lines consisting of characters are printed in an adjusted form. 2. Word processing system according to claim 1, characterized characterized in that all characters have a thickness that consists of an equal number of thickness elements is composed. - 119 - 509844/0462 3. Text processing system according to claim 1 or 2, d a characterized in that the adjustment signal activates the control unit to a blank thickness element after a predetermined group of blank thickness elements recorded in each of the lines. 4. Text processing system according to claim 3, wherein the recording part is a magnetic tape divided into a plurality of blocks, each one of which is made up of characters contains the existing line of text information and with the total number of thickness elements first Characters are recorded in a predetermined position (4th character) of each block, each Block includes a second character (5th character of each block) that corresponds to the number of thickness elements is assigned, which form the characters recorded in the block, identified by a comparison device (470) which the first compare with the second character and the printing device (6) can operate when the first with the second character matches, so that the print lines are printed flush with the right edge. 5. The word processing system according to claim 4, wherein the first character is optionally entered via the keyboard can, characterized in that the recording device by the command character is activated to record the first character in the block, making the format of each print line optional can be changed. - 120 - 509844/0462 6. Word processing system according to claim 4 or 5, wherein the printing device can generate a signal that the Indicates end of line, characterized by an additional decoder that the end of line indicating signal can identify, and a counter (TRC), which by the printing device for Counting the number of thickness elements entered in each of the print lines and activating the memory device (40) is operated to select the second character corresponding to the number of thickness elements in a predetermined Cell of the memory is assigned to record, with the additional decoding device being a transmission device (420) is actuated in order to change the character thus drawn onto the one corresponding to this line Transfer block. 7. Word processing system according to claim 4, 5 or 6, wherein the comparison means produce a first command signal can when the first and second characters are different from each other by additional comparison means (471) for comparing each character of the block with one spatial characters and for generating a further command signal in accordance with the spatial Characters, the transmission device transferring the characters of the block to a plurality of cells of the memory in the absence of the further command signal and transmits at least one empty thickness element in the presence of the further command signal begins, whereby the number of characters contained in the block at least one thickness element is increased. - 121 - 5098AA / 0462 8. Textverarbextungssystera according to claim 7 ', characterized in that the counting device activates the memory device to record the number of the increased thickness elements in this way in the pre-determined cell, wherein the comparison device compares the character increased in this way with the first to the first To generate a command signal if the first character is not identical to the second, and to actuate the printing unit if the first character is identical to the second. 9. Word processing system according to claim 8, characterized in that the transmission device successively a predetermined number of the empty thickness elements in the presence of the further Can use command signal. MA / fciP - 25,761 509844/0462