SU610113A1 - Program relaying arrangement - Google Patents

Description

(54) DEVICE FOR TRANSLATING PROGRAMS

one

The invention relates to the field of computing and can be used for processing expressions of an algorithmic language. .

A device for translating programs written in ALGOL 1 is known, which contains a descrambler of basic syntax concepts, triggers of the analysis field registers, a logic circuit for resetting triggers of the analysis field, a logic circuit for switching to the analysis field, and a logic circuit for triggering the fields of the analysis field.

The disadvantage of the device is the high cost of equipment for its implementation.

The closest to the invention in technical essence and the achieved positive result is a device for broadcasting programs 2, comprising a language character storage unit, an address identifier storing unit, a command extractor unit and a backlight unit.

The drawbacks of the device are the high costs of equipment for its implementation, as well as the need to make changes to the device when changing the grammar of the algorithmic language, which reduces the functionality of the device.

The purpose of the invention is to reduce the amount of equipment and increase flexibility by providing resistance to changes in the grammar of the input language.

The goal is achieved by the fact that the proposed device contains a state decoder, a state register, a storage unit of operation codes of a basic machine, a buffer register and a communication unit with a digital computer (DVR). From the first to the fifth outputs, the depotfrator of states is connected respectively to the inputs of the language character storage unit, the identifier address storage unit and the command allocation unit, the first inputs of the backlight unit and the communication unit with a digital computer, the second input, the first and second outputs of which are connected respectively to the first output of the buffer register, with the first input of the state decoder and the first input of the buffer register. For the first time, the outputs of the language character storage blocks, the storage of identifier addresses and command allocation are connected to the code inputs of the state register, the control input of which and the output are connected respectively to the second output of the buffer register and to the second input of the state decoder. The second outputs of the language character storage blocks, the storage of identifier addresses and command allocation are connected respectively to the input of the basic machine operation codes storage unit, the second and third inputs of the buffer register, the fourth input and the third output of which are connected respectively with the output of the basic machine code codes the second input of the backlight unit, and the input-output of the communication unit with a digital computer is the input-output device.

The block diagram of the device is shown in the drawing.

The device for translating programs contains a block of storing symbols of language I, a block of storing addresses of identifiers 2, block 3 of communication with a digital computer, a buffer register 4, a block of illumination 5, a register of state 6 with code inputs 7 and control input / hour 8, a decoder of state 9, an iO storage unit of operation codes of the basic machine, and a command allocation unit 11.

The device works c.Jeductive way.

Before work, a sheet with a written program is inserted into a specific place in the device control panel (not shown in the drawing) so that one line of the written is visible in the window, on the panel. On the control panel of the device, there is a keyboard connected to a storage unit of characters of language 1, a keyboard connected to a storage unit of addresses of identifiers 2, and a service keyboard connected to communication unit 3 with a digital computer 12. On the keys connected to block I, the main characters are written zyka. The captions change depending on the language from which the translation is to be performed. On the keys connected to the block of storage of addresses of identifiers 2, the identifiers used in the program are written.

From the control panel with the help of block 3 of communication with a digital computer, a connection is established with digital computer 12. Once the connection is established, a service message is sent to the machine containing the input language cipher, operation mode and information for restoring the interrupted translation process.

The device operates in two modes of operation: the mode of the start of translation, when the program does not have any previously translated blocks, and in the mode of continuation of translation, when the program is allocated in stages. In the first mode of operation, information to restore the broadcast may be missing.

Actually, the process of broadcasting in the system device - the digital computer is divided into two stages: the translation from the algorithmic language to the language of the base machine and the translation from the language of the base machine to the language of the real computer. The basic machine language is the command system of an abstract computer in which certain codes correspond to individual algorithmic constructions or operations.

After receiving the overhead message, the DVR 12, via the communication unit with the DVR, transmits to the register 4 a device status code and information for the backlight unit 5. The status code is then transmitted to the status register 6. Together with the status code, the DVR issues a signal enabling the operation the state decoder 9. The state decoder 9, decrypting the contents of the state register 6, outputs a signal to the backlight unit 5. The lighting unit 5, according to the information contained in the register 4, performs the illumination of certain keys on the control panel or x window seats.

9

For example, at the beginning of a translation, one or more characters are highlighted, from which a program written in an algorithmic language can begin, the key of the desired character is selected and pressed. The character storage unit of language 1 generates a character tag that causes the formation in operation 10 of the basic machine operation codes of the corresponding machine to be transferred to register 4. In addition, unit 1 generates a code that changes the contents of the state register b. After that, the state decoder 9 outputs a signal to the communication unit 3 with a digital computer. On this signal, the contents of register 4 are transmitted to the digital computer via unit 3 for communication with the digital computer, after which the device enters standby mode. A special program included in the mathematical software of a digital computer analyzes the received message and gives possible syntactically correct continuations of the program to be dialed, which determine the device status code and information for the backlight unit 5.

The division of the language operator into commands is carried out with the help of the selection block of the i 1 command and the backlight block 5. The partition is based on the method of graphically dividing the operator into parts.

The selection of the command is as follows.

Under the window on the control panel there are a series of fixed contacts and a movable contact connected to the selection unit of command II. A wire with a movable contact is fixed, it is set in block AND information about where the command from block 11 is selected in the window. This information goes to register 4. In addition, the command selection block 11 generates a code that changes the contents of the status register 6. Decryphra-; the torus of states 9 by deciphering the contents

S status register 6, generates a signal in block 3 of communication with a digital computer. By this signal, the contents of register 4 through block 3 of communication with a digital computer are transmitted to a digital computer, which, after analyzing the received message, generates the code of the next

0 device states and information for the backlight unit 5 and transmits them through the communication unit 3 with the digital computer to the register 4. The state decoder 9 starts its operation.

After selecting the command, the keys of those identifiers are highlighted, which, according to

5 of their descriptions can take part in the recruitment team. When pressing the key of the identifier, the register 4. From the block of storage of the addresses of identifiers 2, the address corresponding to the given identifier is received, and the code transmitted is generated