Omron C200HX Operation Manual page 264

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Binary Calculations

Example 1: Normal Data

The following example shows a four-digit subtraction with CY used to place ei-

ther #0000 or #0001 into R+1 to ensure that any carry is preserved.

In the case below, the content of LR 20 (#7A03) and CY are subtracted from

IR 001 (#F8C5). The result is stored in HR 21 and the content of HR 22 (#0000)

indicates that the result is positive.

If the result had been negative, CY would have been set, #0001 would have

been placed in HR 22, and the result would have been converted to its 2's com-

Note The status of the UF and OF flags can be ignored since they are relevant only in

the subtraction of signed binary data.

Address Instruction

Section 5-20

(from CLC(41))

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