SU1397902A1 - Device for adding an array of numbers - Google Patents

Description

(21) 4024520 / 24-24

(22) 01/03/86

(46) 05.23.88. Bul No. 19

(71) Taganrog Radiotechnical Institute. V.D. Kalmykova

(72) V.M.Taranukha, V.P.Gondarev and O.B.Makarevich

(53) 681.325.5 (088.8) (56) Solovyov G.N. Arig metic computer devices. - M .: Energie, 1978, p. 112-113, fig. 5-5.

Introduction to cybernetic technology. Processing of physical information. Under the general ed. B.N. Malinovsky. - Kiev: Naukova Dumka, 1979, p. 123-125, 128.

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(54) DEVICE FOR SUMMING MASS OF NUMBERS

(57) The invention relates to computing. The aim of the invention is to expand the scope due to the possibility of summing floating-point numbers. The device contains entrances 1 of mantis summable numbers, input 2 initial order shifts, input 3 order values, input 4 reset signals, 5 times adder, multiplexer group 6, counter group 7, read signal input 8, switch 9, adder 10, output 11, clock input 12. 1 Il.

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with; about: about

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The invention relates to computing.

The aim of the invention is to expand the scope by allowing the summation of floating-point numbers.

The drawing shows a block diagram of the device.

The device contains entrances 1 of mantis summable numbers, input 2 initial order shifts, input 3 order values, input 4 reset signals, 5 times adder, multiplexer group 6, counter group 7, read signal input 8, switch 9, adder 10, output 11 and clock input 12.

The device works as follows.

The counters 7 are pre-cleared to zero by the signal received at input 4. The order of the terms is formed in the adder 5, where the initial order offsets are added or subtracted. The order from the output of the adder 5 is fed to the control- inputs of the multiplexers 6. The order sign The terms determine the direction of information shifting in multi-Shixors 6. If (mj 0), then multiplexers 6 perform the operation of shifting the mantiss codes towards the lower (lower) bits by the corresponding number of bits i, which is equivalent to increasing (intelligent above 13979022

) of the weight of individual bits of mantis 2 times. With a reading of 7 in the counter, we accumulate weight bit sums. The obtained values from the outputs of the counters 7 are output to the input of the adder 10 by the read signal received at the input 8.

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25

thirty

Claims (1)

An apparatus for summing an array of numbers containing a group of counters, a switch and an adder, whose outputs are connected to the output of the device, and the inputs are connected to the outputs of the switch, whose information inputs are connected to the outputs of the bits of the group counters, the control input of the switch is connected to the input of the read signal device. characterized in that, in order to expand the scope of application due to the possibility of summing up the floating point numbers, an adder of orders and a group of The multiplexers whose outputs are connected to the inputs of the corresponding group counters, the control inputs of the group multiplexers are connected to the output of the order combiner, the inputs of which are connected to the input of the initial order bias and the input of the order value of the device, the information inputs of the group multiplexers are connected to the inputs of the mantissa of the summable device numbers . An apparatus for summing an array of numbers containing a group of counters, a switch and an adder, whose outputs are connected to the output of the device, and the inputs are connected to the outputs of the switch, whose information inputs are connected to the outputs of the bits of the group counters, the control input of the switch is connected to the input of the read signal device. characterized in that, in order to expand the scope of application due to the possibility of summing up the floating point numbers, an adder of orders and a group of The multiplexers whose outputs are connected to the inputs of the corresponding group counters, the control inputs of the group multiplexers are connected to the output of the order combiner, the inputs of which are connected to the input of the initial order bias and the input of the order value of the device, the information inputs of the group multiplexers are connected to the inputs of the mantissa of the summable device numbers .