JPS60205769A - Electronic minicomputer with program - Google Patents

Abstract

PURPOSE:To select the most suitable storage medium to be set to a device body by reading out optionally and displaying volumes of program information and data file information in the storage medium. CONSTITUTION:When a program write mode is set, a flip flop (FF) 19 is set, and the value of a program area counter 15 is counted up by a signal corresponding to the number of bytes of program information which is inputted hereafter. This inputted program information is written in the address position of a memory card 8 which is indicated by this value. A signal ENT is outputted from a CPU3 by the operation of an enter key, and contents of the counter 15 are written in a register 4 by this signal. As the result, the latent program end address PE is always stored in the register 4 and can be read out if necessary.

Description

DETAILED DESCRIPTION OF THE INVENTION [Branch of the Invention] The present invention relates to a compact tu tff: machine with a program for storing program information and data file information.

``C Prior Art and its 181 Problems'' In recent years, small Yako-type machines with programs have been equipped with external storage media that are detachable from the main body of the device, and one storage medium contains the program (ffi). A storage medium has been developed in which data file information is stored on the other storage medium.Naturally, the above storage medium has a limited storage capacity, and for example, a storage medium for storing program information has been developed. If a subcommittee has insufficient storage capacity, it will be necessary to install a new storage medium.

However, with conventional devices, it is only possible to know how much information has been reloaded (including both program information and data file information), and if that capacity is insufficient, the program Feeling/Creation
Is it necessary to add a storage medium for storage, or is it necessary to add a storage medium for storing data file information? Furthermore, when expanding the storage medium, what capacity does the storage medium have? It was unclear at all.

[Purpose of the invention]

The present invention has been made in view of the above points, and it is an object of the present invention to provide a single-child compact computer with a program that can arbitrarily read out and display the amount of program information and data file information in the data storage system. purpose.

[Embodiments of the invention]

An example of the invention will be specifically described below with reference to the drawings. FIG. 1 is a block circuit diagram showing the entire configuration of a small electronic meter with a program.

1 in the figure is the keyboard, alphabet and gauze key 1
In addition to α, the program month: display specification key (SYS i
' IN M P key) 1b, Display all data files J
W constant*-(8Y!"l'l', laM V+-) 1
c, Pro 1゛gra At included key (7) r o, q1w key) 1d,
Data input key (Dαtα, W key) Ig, and/or)
'Enter key (E N '1' 181 (key) 1f
It is equipped with

The key operation signal on this keyboard is input to the input control device 2.
The input control device 2 inputs key code data corresponding to the operation keys to the CPU (Central Processing Unit) 3. This (3P U3 is a ROM (read-only memory) that stores pre-fixed microprogram instructions, ALU'''' (arithmetic circuit), each 4'')
It consists of a RAM (random access memory) that stores calculation results and a control circuit ON that controls the entire device, and a program end store register 4, which will be described later.
It exchanges various data with three memory carts 08 consisting of a data end 0 store register 5, a memory end store register 6, an area counter control circuit 7, and an external storage medium RAM. This 0PU3 also outputs a write signal R to each of the registers 4, 5, 6 and the control circuit 7 mentioned above, and also outputs a read signal P to the register 4 via the OR gate 10. , OR gate 1 for register 5
1, and also outputs a read signal ■ to the register 6 via the delay circuit 12. Note that the above - write signal I
(is input to register 5 via delay circuit 13, and to register 6 via delay circuits 13 and 14.

Further, 0PU3 outputs a pulse signal OK to the program area counter 15 and data area counter 16 through AND gates 17 and 18 when writing program information or data file information. The other input terminal of this AND gate 17 is the output signal 1+ (input The first and other input terminal of the AND gate 18 becomes 1'' by operating the data write key 1e (set X#1A>flip 70 knob 2).
0Q) Output signal is input. On the other hand, the program area counter 15 is set to 11141 by the AND gate 17.
If the first pulse signal is a descendant of T Rikau/Door Tsubu, the γ Tsubu counter will be 4? 1) 1, the data area counter 16 is output from the AND gate 18.
It consists of a down counter that performs countdown steps according to a pulse signal. Then, CPU 3
When No. 43 ENT of the first situation is outputted, the self-answers of both counters 15 and 16 are input to the comparison circuit 21, and it is checked whether there is any overlap in the negative range of the program and the robust range of the data file. If there is a duplication, the comparison circuit 21 outputs an error 1 word e to the CPU 3.

The area counter 1lillrr4+circuit 7 receives the read signal 1 by inputting the H-included signal 1 outputted from the CPU 3.
(o101! is output 17 to the OR gate 10.11, and then the write signal W is output to the counter 15.16.
Outputs OI and Wtt.

FIG. 2 is a diagram showing the memory format of the memory card 8 mentioned above.

This memory format supports three memory cards 8α, p
, b-@c, and consists of program a science and technology area (α), program storage area (b), free area (C), data file storage area (d), and fixed variable area ($1 .'K O1f management area vl d) Divided into 6 areas. Program storage area (α
) is a storage area where the program storage area (bl) is stored, and the program storage area (Al's program end address P14 is stored in the address A area, and the memory card 8C's memory end address ME is stored in the address B area. Program storage area (
hl is a unique area where the created program information +1 is stored, and the program end address PE address (ff, bqG) is stored in Itj where the program information is input.
In a positive direction (memorize while making new ones).

Free area fC) is other area (α), ihl, fdl
~σ), and is an area in which programs or data files can be written. The data file storage area fdl is a storage area where created data file information is stored, and the data file storage area fdl is a storage area where created data file information is stored.
Al,! =Different, each time data is input, the address position of data end address l)E is updated and stored in the non-negative direction. The fixed variable area 1e1 is an area where predetermined variable data such as scientific paper is stored. Change hk "i (science and technology rear (A is data file I! + E +, 'Ct areat t), fixed variable area f
If J14'4-g) are both areas, write the end address D1 of the data file 11 bale area (d) in the address C area 1. I'm α. In addition, in the present invention, engineering IJ a (al, tb
1 is collectively referred to as the program area, and areas (d) to V
) are collectively called the data area.

Next, the operation of this first embodiment will be explained.

Now, install three memory cards (all with a capacity of 4 KB) that do not store any program information or data file information into the main body of the electronic compact computer with program, and press the power switch (not shown). ) is turned on. At this time, 0PU3 searches the storage capacity of memory card 8 (in this case, it is 12 kilobytes), and sets the address (supply address) of each memory card 8α, 8b, and 8C in this order.
Configure settings. For example, if an IB (byte) is required for each address, the initial address is oooo.

Address, final address (memory end address MP) is 1
The address is set to 1,999. After this, the CPU 3 transfers the data for the program/a management area, the variable 'g' area, and the fixed variable area to 110 of 0PU3.
Sequentially extract n7e from within M, set the data for the program'#f logical area while counting up addresses sequentially from address 000()0 on the memory card, and then set the data for the variable and administrative area and the fixed data. The data for the variable area is set sequentially from the memory end address ME of the memory card while counting down the addresses. With this setting, the program start address 1) S corresponds to /+ in the program management area to the address next to the end address, and the data file start address 1)
8 is the amount of data from the memory end address ME of the memory card 80 for the fixed sand area and variable administrative area (
(the number of bytes is fixed) is subtracted. In this case, program area, data file information, 1
Since 1-inclusive is not included, the program end address PE
matches the program start address J) 8, and its value is stored in the area of address A, and the memory end address ME of the memory card 80 is written in the area of address 13 (1, 1?). Furthermore, the data file end address 1)13 matches the data file start address I)S, and its value is stored in the area at address 9.

When the format setting for the memory card 8 is completed in this way, the OPU 3 sequentially reads out the values in the address A, O, and H areas of the memory card 8, and converts these values by -1. Register 4 while synchronizing with input signal 1 side.
．． I will write in sequentially from 5.6.

Also, at this time, the write signal R is sent to the area counter control circuit 7.
As a result, the area counter control circuit 7 first outputs a read signal Rot and a write signal Wo1, and the contents of the register 4 (corresponding to the program end address PIB) are sent to the program area via the CPU 3 and the area counter control circuit 7.琥Counter】Written to 5 or not. Next, the area counter control circuit 7 outputs the read signal 1 (tt) and the write signal Wts, and the contents of the register 5 (corresponding to the data file end address DB) are transmitted through the area counter control circuit 7 of 0PU3 and -1. Data area counter 16 to 14
It gets sucked in.

When first creating a program on a small electronic computer with a program that has been initialized as described above,
Operate the program/IF gear 1d to set the program writing mode. By this operation, the tree flop 19 is set, and the value of the program area counter 15 is counted up by the pulse signal corresponding to the number of bytes of program information inputted thereafter, and the address position of the memory card 8 indicated by that value is Input program information in sequence: 1! r get into it. Next, if you want to sequentially file the variable zt data by executing this created program, operate the data 11 (input key 1e and set the flip-flop 20. This will save the bytes of data file information that will be input from now on. The data area counter 16σ month IK counts down in response to the pulse signal of Keibun, and the inputted hentai data information is sequentially appended to the address position of the memory card 8 indicated by the value. By operating the [Enter key]f for inputting information, the 0PU3 outputs a signal multiplied by [3N'r], and the contents of the counter 15 are written to the register 4 and the contents of the counter 16 are written to the register 5 by this signal. This binding register 4 always stores the latest program end address PE, and the register 5 always stores the data file end address -1)B of the captive. At this time, the contents of both counters 15 and 16 are also sent to the comparison circuit 21,
If the content of the counter 5 is greater than or equal to the content of the counter 6, the comparison circuit 21 outputs an error signal e to the 0PU3, causing the display device 9 to display an error.

Next, after the various operations described above, if you operate the program number display designation key i or data file amount display designation key IC on the keyboard number 1, the operation of the program amount display instruction key 1 will be performed. As a result, 0PU3 outputs a read signal P, the value of the program end address Phi stored in register 4 is read out, and 0PU3 outputs a read signal P.
It will be incorporated into 3.

0PU3 is the number of bytes of the program area by adding 1 to this value, that is, the program management area (α)
and the program storage area (Al), and sends it to the display device 9 for display.
.

On the other hand, when the data file amount display designation key 1 is operated, 0PU3 outputs the read signal V and register 5
1. # data file end address D
The value of B is read and taken into 0PU3. Following this, readout No. 48 is output from the delay circuit 12, and the value of the memory end address ME stored in the register 6 is read out and taken into 0PU3. After this, 0
PU3 subtracts the value of the data file end address DB from the fetched value of the memory end address ME to obtain the number of bytes of the data area, that is, the data file storage area (dl, fixed variable area (e), and number management The total number of bytes for each area is calculated and sent to the display device 9 for display.

Specifically, for example, if the memory format of the memory card 8 is as shown in FIG. Figure 4 (A)
A display like the one shown is displayed.

In the above embodiment, the program information I+4: t! is obtained by operating the designated key 1h and the IC. :, Although the data file information amount is displayed individually, it is also possible to display both of the above information amounts once by specifying one display, such as by using only one specified key. .

Further, in the above embodiment, the program information amount and the data file information i[-number of bytes were shown, but it may be expressed in other units U such as the number of words or bits.

Furthermore, in the above embodiment, when the designated key 1b or IC is operated, the amount of program information and the data file information are determined according to the values of the program end address, data file end address, and memory end address corresponding to the address of the memory card 8. Although the amount of information is calculated, it is also possible to calculate and store both of the above information amounts for each program setting and data file setting, and read and display the amount of information by the display designation operation. .

〔Effect of the invention〕

As described above, according to the present invention, both program information and data file information can be arbitrarily read out and displayed in a compact programmable meter. You can see at a glance whether you need a storage medium with a storage capacity of 1000 yen, or how much storage medium you need for data file information storage, and you can install it in the device itself. This makes it possible to select the most suitable storage medium.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and Fig. 1 is a block circuit diagram showing the entire installation of a small electronic scale with a program, Fig. 2 is a diagram showing the memory format of a memory card, and Fig. 3 Figure 2 shows an example of the memory format, and Figure 4 (α) and (b) show examples of the display. 1...Keyboard, 1h...Song program fi
t Display designation key, IC... Data file side display designation key, 3... CPU, 4... Program end store register, 5... Song data end store register, 6 ...Memory end store register, 8...Memory card, 9...
...Display device. Dou 3 Domo 4 Shiku b) Ward 1 layer day 11!0

Claims (1)

[Claims] a storage means for storing a series of program information and a series of data file information; a calculation means for individually outputting four information amounts of the series of program information and data file information;
A programmable t# child type compact meter niso, comprising a designating means for designating the display of the above-mentioned stitching information, and a display means for displaying the above-mentioned amounts of information based on the designation.