316
Comparison Instructions Section 3-7
Operand Specifications
Description MCMP(019) compares the contents of the 16 words S
1
through S
1
+15 to the
contents of the 16 words S
2
through S
2
+15, and turns ON the corresponding
bit in word R when the contents are not equal.
The content of S
1
is compared to the content of S
2
, the content of S
1
+1 to the
content of S
2
+1, ..., and the content of S
1
+15 to the content of S
2
+15. Bit n of
R is turned OFF if the content of S
1
+n is equal to the content of S
2
+n; bit n of
R is turned ON if the contents are not equal. If the contents of all 16 pairs of
words are the same, the Equals Flag will turn ON after the instruction has
been executed.
Area S
1
S
2
R
CIO Area CIO 0000 to CIO 6128 CIO 0000 to
CIO 6143
Work Area W000 to W496 W000 to W511
Holding Bit Area H000 to H496 H000 to H511
Auxiliary Bit Area A000 to A944 A448 to A959
Timer Area T0000 to T4080 T0000 to T4095
Counter Area C0000 to C4080 C0000 to C4095
DM Area D00000 to D32752 D00000 to
D32767
EM Area without bank E00000 to E32752 E00000 to
E32767
EM Area with bank En_00000 to 32752
(n = 0 to C)
En_00000 to
En_32767
(n = 0 to C)
Indirect DM/EM
addresses in binary
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
Indirect DM/EM
addresses in BCD
*D00000 to *D32767
*E00000 to *E32767
*En_00000 to *En_32767
(n = 0 to C)
Constants ---
Data Registers --- DR0 to DR15
Index Registers ---
Indirect addressing
using Index Registers
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
R
0: Words are equal.
1: Words aren't equal.
Comparison