SU624228A1

SU624228A1 - Arrangement for computing function: y equals e raised to x power

Info

Publication number: SU624228A1
Application number: SU772455330A
Authority: SU
Inventors: Владислав Филиппович Примиский; Лариса Андреевна Цуканова; Надежда Сергеевна Клименко
Original assignee: Всесоюзный научно-исследовательский институт аналитического приборостроения
Priority date: 1977-02-22
Filing date: 1977-02-22
Publication date: 1978-09-15

Description

Изобретение относитс к области .вычио пигепькрй техники и может быть и.спопьаовано цп вычиспени функций У ё и У Е-М X при использовании чиспо-импупьсных коцов, а также в различных функ ционапьных устройствах и цифровых измеритепьных приборах.The invention relates to the field of computing technology and can be used to compute the functions of the U and U E-M X using numerical-impedance co-operation, as well as in various functional devices and digital devices.

По основному авт.св. № 369565 известно устройство цп вычислени функцииAccording to the main auth. No. 369565 Known Device CPU Calculation Function

Ч « е , содержащее счетчик, выхоцы разр дов которого подключены к управл емым входам схем запрета, счетчик ре гистр, выходы разр дов которого подкпю чены к управл ющим входам запрета и схем сборки.An e, containing a counter, the outputs of the bits of which are connected to the control inputs of the inhibit circuits, the register counter, the outputs of the discharge bits of which are connected to the control inputs of the inhibit and assembly circuits.

Недостатком его вл етс невозможность вычиспени функции j.-tnoC,Its disadvantage is the impossibility of computing the function j.-tnoC,

Целью изобретени вл етс расширение класса решаемых задач, путем вычислени дополнительно функции Ya Evt X . The aim of the invention is to expand the class of tasks to be solved by additionally calculating the function Ya Evt X.

Это достигаетс тем, что в устройство введены элемент И, дополнительные счетч. чики, схема сравнени , триггер и элемент задержки, вход которого соединен с входом первого дополнительного счетчикаThis is achieved by introducing an AND element into the device, additional counts. ticks, a comparison circuit, a trigger and a delay element whose input is connected to the input of the first additional counter

п входом устройства, выхоц эпемента задержки соединен со входом счетчика и первым входом элемента И, выход которо го соединен с входом второго цопопнитепь ного счетчика, а второй вход эпемента И роединен с единичным выходом триггера, вход которого соединен с выходом схемы сравнени , перва группа входов которой соецинена с выхопами первого аопопнитепьного счетчика а втора группа входов соединена с выходами счетчика-регистра .The device's input, the output of the delay element is connected to the input of the counter and the first input of the element AND whose output is connected to the input of the second user counter, and the second input of the connection I to the single output of the trigger, the input connected to the output of the comparison circuit, the first group of inputs which is connected with the outlets of the first one counter and the second group of inputs is connected to the outputs of the counter-register.

На фиг. 1 показано устройство дл вычислени функции е на фиг. 2 г графики его работы.FIG. 1 shows a device for calculating the function e in FIG. 2 g of his work schedule.

Устройство содержит входную клемму 1, первый дополнительный счетчик 2, &ле мент задержки 3, устройство цп вычиолени функции Y е 4, элемент И 5, счетчик в, счетчик-регистр 7, схемы запрета 8, схему. ИЛИ 9, схему сравнени 1О, второй цопопнитепьный счетчик 11, триггер 12.The device contains an input terminal 1, the first additional counter 2, & delay 3, the device for calculating the functions Y e 4, element 5, counter v, counter register 7, prohibition circuits 8, the circuit. OR 9, comparison circuit 1O, second counter counter 11, trigger 12.

Claims

In the device, the function value itself is calculated, and the fire-symmetric bisectrix of the first and third coordinating functions is symmetric to it (ZL} this is the result of the above symmetry and reversibility of the functions UeU e "X, 0 | X2, From the graphs (Fig. 2) it is clear that pX .., and OX2 J: X2-CX., I.e., the CX of the CX representation, it is necessary to find the value of the argument OX of the function Y, the counterpart of which AXt is equal to its argument OX. The device works as follows, Through the input 1 enters a numerical value of the number M of PJV / 2, Hz F in on input, T is the conversion time, ff is the number of bits in the counter 6. The duration of the delay T of pulses in the hold line is longer than T, the time of writing the number-pulse code N to counter 6, i.e. T Thus, the 6-pulse-pulsed NI code will start to arrive only when it is completely written to the first additional counter 2. Pass delay element 3, the pulse number W is passed to the device input to calculate the function, to the counter b and on the first inlet of element I 5, on the second inlet of which it is resolving (unit -border) potential with trigger output unit 12 (trigger is in state 1) Current value Chispa imnupsnogo cop-MI will be recorded in schegchik tsopopniteliy 6 and the second counter 11 through the AND .ent epe-5 simultaneously. The operation of the device for calculating occurs as follows. Regardless of the code received by the counter-register 7, the pulse frequency at the output of the circuit OR 9 will be equal to Р L / l FO Y 7 У in the counter ke-register 7. Y-J-ipoYdt; 2iU "- w" T e. Thus, as the current values of the number-pc of the pulse cell N j arrive, the output current code Y "is generated at the output of the register counter, which is compared with the fully recorded value of the code N in the first additional counter

2. With a certain current value of cc) r o s, the codes Y 6 at the output of the counter-register 7 and W i in the first additional counter 2, N 1 «e 2, are equal. This equality is fixed by the comparison circuit 1O, which in this case gives a signal to the output, this pulse signal transfers trigger 12 to the state O, and thus the prohibitory (zero) potential is now fed to the second input of element And 5, and element 5 closes. In counter 11, further recording of the current kotz V values is stopped, the number N7 is written in HfeM. By virtue of the above symmetry, the code value ti / recorded in the second additional counter 11 will be equal to the orcinate value of the function Y Ew X with the argument W j, e. W El1 W j Since the value of the code N L is only the current value of the desired code N, after fixing W to the second additional counter 11, the code N j will still be input to the device for calculating the function Y e 4. Ooche final W code entry | At the output of the register register 7, the code e i will be generated. Code E "W | previously defined, is stored in a second optional counter 11. The present invention extends the functionality of the device. In this case, hardware costs increase slightly. The invention is a device for calculating the function Y e according to the ed. St. No. 369565, which is based on the fact that, in order to expand the class of tasks of the device by calculating additionally the function V 2 ft X, an element I, additional counters, a comparison circuit, a trigger and a delay element whose input is connected to the input of the first additional the counter and the input of the device, the output of the delay element is connected to the input of the counter and the first input of the element I, the output of which is connected to the input of the second additional counter, and the second input of the element I is connected to the single output of the trigger, whose input oedinen yield comparing circuit rjiynna first input coupled to the outputs of the first counter is additionally, a second set of inputs connected to the outputs of the register-counter.