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Electronic computing circuit for addn. and subtraction - has decimal point processing facility and requires programming with the number 1 only for both arithmetic operations

机译:addn的电子计算电路。加减法-具有小数点处理功能,并且仅对两个算术运算都要求使用数字1进行编程

摘要

The programming circuit (35B) consists of a subcircuit (35c) including 12 simple flip-flops with AND, OR and NOT gates, a gate circuit (24) comprising eight 2-input AND gates, and OR gates (21,23), AND gates (22,25) and NOT gates (27,34). An additional flip-flop at the lower end performs a carry to pre-empt the figure 2 cycle of another pulse circuit whereby the minuend is subtracted from the subtrahend. The latter circuit has an additional output whereby another flip-flop is reset when necessary. USE/ADVANTAGE - The circuit need only be programmed with the number 1 even when two successive subtractions are necessary and lead to negative difference.
机译:编程电路(35B)由一个子电路(35c)组成,该子电路包括12个具有AND,OR和NOT门的简单触发器,一个包括8个2输入与门和OR门(21,23)的门电路(24),与门(22,25)和非门(27,34)。下端的一个附加触发器执行进位,以抢占另一个脉冲电路的图2周期,从而从减数减去减数。后一个电路具有一个附加输出,从而在必要时复位另一个触发器。使用/优点-即使必须连续两次相减并导致负差,也只需用数字1对该电路进行编程。

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