Omron C200H Operation Manual page 181

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BCD Calculations

turned OFF for at least one cycle (resetting HR 2100) and then turned back

The first and second subtractions for this diagram are shown below using

example data for 010 and DM 0100.

Note The actual SUB(31) operation involves subtracting Su and CY from 10,000

plus Mi. For positive results the leftmost digit is truncated. For negative

results the 10s complement is obtained. The procedure for establishing the

correct answer is given below.

First Subtraction

Address Instruction

Turned ON to indicate

negative result.

(1029 + (10000 – 3452))

(negative result)

Section 5-17

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