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7-24
Section
Logic Instructions
482
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.
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
15
00
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
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.
7-24-5 EXCLUSIVE NOR – XNRW(37)
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
XNRW(37)
I1
I2
R
@XNRW(37)
I1
I2
R
DM 6144 to DM 6655 cannot be used for R.
When the execution condition is OFF, XNRW(37) is not executed. When the
execution condition is ON, XNRW(37) exclusively NOR’s the contents of I1 and
I2 bit-by-bit and places the result in R.
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
15
00
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
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.
Description
Example
Limitations
Description