SU924704A1

SU924704A1 - Device for raising to the third power

Info

Publication number: SU924704A1
Application number: SU802880980A
Authority: SU
Inventors: Владимир Эмильевич Петров; Елена Федоровна Тощева; Александр Эмильевич Петров; Александр Владимирович Батов
Original assignee: Предприятие П/Я М-5728
Priority date: 1980-02-08
Filing date: 1980-02-08
Publication date: 1982-04-30

Description

Изобретение относитс к автоматике и вычислительной технике и может быть использовано при реализации технических средств в этих област х.The invention relates to automation and computing and can be used in the implementation of technical means in these areas.

Известно устройство дл возведени в куб 1.A device for cube-building 1 is known.

Недостатком данного устройства вл етс низкое быстродействие.The disadvantage of this device is low speed.

Наиболее близким по технической сущности к предлагаемому вл етс быстродействующее устройство дл возведени в куб, которое содержит два сумматора, двоичный счетчик и три группы элементов И. При поступлении импульсов на вход устройства происходит последовательное преобразование входных чисел в кубы этих чисел. Результат вычислени фиксируетс на выходах второго сумматора 21 .The closest in technical essence to the present invention is a high-speed device for raising to a cube, which contains two adders, a binary counter and three groups of elements I. When pulses arrive at the input of the device, the input numbers are converted into cubes of these numbers. The result of the calculation is recorded at the outputs of the second adder 21.

Недостатком известного устройства вл етс сравнительно низкое быстродействие .A disadvantage of the known device is a relatively low speed.

Цель изобретени - повышение быстродействи .The purpose of the invention is to increase speed.

Поставленна цель достигаетс .тем, что в устройстве дл возведени в куб, содержащем N регистров, где N - число разр дов преобразуемого кода, входы которых соединеныThe goal is achieved. In the device for erecting a cube containing N registers, where N is the number of bits of the code being converted, whose inputs are connected

со сдвиговым входом устройства регистр первого разр да преобразуемого кода выполнен на счетном триггере, регистры m разр дов преое5разуемогоwith a shift input of the device, the register of the first bit of the code being converted is executed on the counting trigger, the registers of the m bits of the transmitted 5

кода, где 1 .() i code where 1. () i

выполнены на кольцевыхК-разр дных регистрах, (где К 2), регистры N - (1 + т) разр дов.преобразуе10 мого кода выполнены в виде сдвиговых L-разр дных регистров (где L made on ring K-bit registers (where K 2), registers N - (1 + m) bits of the transform code are made in the form of shift L-bit registers (where L

I L+i) 1), выходы последних разр дов регистров вл ютс соответ15 ствующими выходами разр дов устройства , установочные входы регистров соединены с входом начальной установки устройства. I L + i) 1), the outputs of the last bits of the registers are the corresponding outputs of the device bits, the installation inputs of the registers are connected to the input of the initial installation of the device.

На чертеже представлена схема The drawing shows the scheme

20 устройства дл5 случа N 6.20 devices for 5 case N 6.

Устройство Содержит счетный триггер 1, сдвиговый вход 2 устройства, вход 3 начальной установки устройства , кольцевые регистры 4 сдвига, ре25 гистры 5-8 сдвига.Device Contains the counting trigger 1, the shift input 2 of the device, the input 3 of the initial installation of the device, the ring registers 4 shift, registers of the 5-8 shift.

Claims

Before starting operation, the counting trigger 1 is set to the zero state, the ring shift registers 4 are set to the state, corresponding to a periodically repeating signal sequence in the given bit of the device, the shift registers 5-8 are set to the state corresponding to the change in the signal device discharge In the drawing, for the case of N b, the value of the initial installation of the device memory elements is indicated inside the circuit elements. When signals enter the bus input at the outputs of the last bits of the registers, signals corresponding to the values of the bits of the reproduced function appear. The speed of the proposed device is significantly higher than the known one, since it does not depend on the number of bits and is determined by the delay of the information shift operation in the register. In the prototype, the time to perform the cube operation increases dramatically with increasing number of bits. Let N be the number of bits in the prototype, be the transfer delay to the discharge in the prototype. Then the rapidity of the prototype can be estimated by the time T of switching the device to one input pulse; T N-C. In the proposed device, the f / i switching time is determined by the shift delay time in the LQ T ri i register. In view of the fact that If o-tii, the performance of the proposed device will be approximately N times in our: Formula of the invention A device for building into a cube containing N registers, where N is the number of bits of the code being converted, whose inputs are connected to the shift input of the device, This is due to the fact that, in order to increase speed, the first bit of the code to be converted is executed on a counting trigger, the registers are m bits, the converted code, where m eocfij O + i), L are executed on ring K-bit registers (where K 2), registers N - (1 + th) bits azuemogo code are in the form of shear. L-bit registers (where b (J vof-f -and,. The outputs of the last bits of the registers are the corresponding outputs of the bits of the device, the installation inputs of the registers are connected to the input of the initial installation of the device. Sources of information taken into account in the examination li USSR Author's Certificate No. 491129, class G 06 R 7/38, 1974.

2. USSR author's certificate 656408, cl. G 06 F 7/38, 1979 (prototype).