Computer Hardware User Manual

278
5-22-4 EXCLUSIVE OR – XORW(36)
I1: Input 1
IR, SR, AR, DM, HR, TC, LR, #
I2: Input 2
IR, SR, AR, DM, HR, TC, LR, #
Ladder Symbols
Operand Data Areas
R: Result word
IR, SR, AR, DM, HR, LR
XORW(36)
I1
I2
R
@XORW(36)
I1
I2
R
Description When the execution condition is OFF, XORW(36) is not executed. When the
execution condition is ON, XORW(36) exclusively OR’s the contents of I1 and I2
bit-by-bit and places the result in R.
10 0110 0110 0110 01
15 00
01 0101 0101 0101 01
11 0011 0011 0011 00
15 00
15 00
I1
I2
R
Flags ER: Indirectly addressed DM word is non-existent. (Content of DM word is
not BCD, or the DM area boundary has been exceeded.)
EQ: ON when the result is 0.
N: ON when bit 15 of R is set to 1.
Example
Logic Instructions Section 5-22