SU754418A1 - Programmed device - Google Patents

Description

one

The device relates to computing, in particular to electronic keyboard computers. ς

A software device is known in which, due to the absence of an address counter, the input of programs and the selection of commands from the program memory block are determined using a special label [1].

The disadvantage of this software device is the inability to directly refer to the desired step programs, which greatly complicates the correction and adjustment of the program.

The closest technical solution to this invention is a software device containing a command register, a program storage unit, an address counter ’, a control unit, a first control output connected to the control input of the address counter, and the first. 25

information input - with the output of the command register and the first input of the program storage unit, the output of the command register connected to the first information input, the second information-30

2

The input of which is connected to the input of command input [2].

A disadvantage of the known device is the low speed when performing operations of conditional and unconditional transitions.

The purpose of this invention is to increase the speed of the software device when performing operations of conditional and unconditional transitions.

This goal is achieved by the fact that a step register, an address entry trigger, a first AND element, a second AND element, a conversion module generation unit, and an input and output connected to the output and the first installation input of the address counter, the output of which is connected to the second it is the formational input of the control unit, and the second installation input with the output of the step register, the first input connected to the output of the first element I, and the second input with the output of the second element I; the first input of the first element And is connected to the output of the register of commands, and the second with the second controlling output of the unit yn ⁷ 54418

The third control output of which is connected to the zero input of the address recording trigger, the single input of the device connected to the clock input signals, and the single output to the first input of the second And element, the second input of which is connected to the output of the program storage unit; the fourth control output of the control unit is connected to the control inputs of the command register. and a storage block of programs, and a control input with an input to enable the recording of a program of the device.

The drawing shows a structural electrical diagram of the device. 15

The device contains a register 1. commands, memorizing, block 2 programs, counter 3 addresses, block 4 controls, register 5 steps, trigger 6 record addresses, the first element And 7, the second element And 8, block 9 of the formation of the module recalculation, inputs 10 and 11, bus 12,. 13, 14 and entry 15,

The device operates in two modes: input programs and account program. To enter a program or calculate it, it is necessary to set on the counter of address 3 a starting address, which is defined by a set of numeric keys ,. In this case, the address code coming from the input device through terminal 10 (input for entering commands) is entered into command register 1 and then successively through element 7, opened by the signal from the second control output of control unit 4, is transmitted to the register of step 5 and the address counter 3 The set state of the address counter 3 is the address of the first command to be entered or executed in the machine’s software device. ”

Sequential recording (sampling) of the command in the storage unit 2 '

programs provided by the address counter 3, the state of which after each entered (selected) command is increased by one signal from the first control output of the control unit 4 via bus 14.

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thirty

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To ensure the possibility of setting any program address with the numeric keys of the input device. The counting of the address counter 3 is carried out in the binary-decimal system. Block 9 of the formation of the recalculation module is a combinational circuit and generates a reset signal of the counter 3 55

address and at its state equal to the recalculation module. ”The value of a module in each specific case is determined by the volume of the storage unit 2 programs of the device. ... th0

β mode of the program input by the write enable signal, which is fed to the input .11 of the control unit 4, the fourth control output of the bus 12 Generates recording pulses of d5 codes

from the input 10 input commands in the register ·

.1 commands and storage unit 2

programs.

The program counting mode starts with the machine executing a command that is selected from the storage unit 2 programs per command register 1 by signals from the control unit 4 on bus 12. In programs entered into program unit 2, conditional commands and unconditional jumps from subsequent digital address.

After sampling the register of 1 commands of the specified commands, the code of the address of the transition allowed by the potential from the single output of the address record trigger 6 is entered into the register of step 5 via the element 8, and the address record trigger 6 is reset to the zero state by a pulse on the bus 13 from the third output control unit 4, thereby prohibiting the entry of the code of the address of the transition to the register 5 'step.

. If the transition condition is fulfilled or an unconditional jump command is recorded in the register 1. command, then the signal at the control input of the counter 3 addresses from the control unit 4 ’the code of the transition address from the 5's-step register is entered in the counter 3 addresses.

After setting the address of the new address on the counter 3, the conditional or unconditional branch command is executed, the trigger 6 of the address recording returns to the initial one state by a signal from the clock device arriving at the terminal 15.

Thus, the introduction of new blocks into the device allows you to set an arbitrary address of the program from the keyboard. input devices, which improves performance when performing operations of conditional and unconditional jumps,

Claims (1)

Claim A software device containing a command register, a program storage unit, an address counter, a control unit, the first control output of which is connected to the control input of the address counter, and the first information input is connected to the output of the command register and the first input of the program storage unit, output connected to the first information - the input of the command register, the second information input of which is connected to the input of the command input, characterized in that, in order to improve performance when performing operations conditional and unconditional Navigate, it is further introduced register step, address recording trigger, the first AND gate, a second AND gate unit five 754418 6 forming the recalculation module, input and output connected respectively to the output and the first installation input of the address counter, the output of which is connected to the second ^ informational input of the control unit, and the second installation input - to the Output of the step register, the first input connected to the output of the first element And, and the second - with the release of the second element And, the first | the input of the first element I G is connected to the output of the command register, and the second is connected to the second control output of the control unit, the third control output of which is connected to the zero input of the address recording trigger, the single input of the connected to the input of the device clock signals, and a single output to the first> input of the second element AND, the second. the input of which is connected to the output of the memory block, programs, the fourth control output of the control unit is connected to the control inputs of the command register and the program memory block, and the control input with the device recording enable input.