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563
Logic Instructions
Section 3-13
Description
COM(029) reverses the status of every specified bit in Wd.
Wd
→
Wd: 1
→
0 and 0
→
1
Note When using the COM instruction, be aware that the status of each bit will
change each cycle in which the execution condition is ON.
Flags
Precautions
When COM(029) is executed, the Error Flag will turn OFF.
If as a result of COM, the content of R is 0000 hex, the Equals Flag will turn
ON.
If as a result of COM, the leftmost bit of R is 1, the Negative Flag will turn ON.
Examples
When CIO 000000 is ON in the following example, the status of each bit will
be D00100 is reversed.
EM Area without bank
E00000 to E32767
EM Area with bank
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
Area
Wd
Name
Label
Operation
Error Flag
ER
OFF
Equals Flag
=
ON when the result is 0.
OFF in all other cases.
Negative Flag
N
ON when the leftmost bit of R is 1.
OFF in all other cases.
Содержание SYSMAC CS Series
Страница 2: ......
Страница 4: ...iv ...
Страница 30: ...xxx ...
Страница 186: ...146 List of Instructions by Function Code Section 2 4 ...
Страница 194: ...154 3 35 4 MOVE BIT MOVBC 568 1273 3 35 5 BIT COUNTER BCNTC 621 1275 3 35 6 GET VARIABLE ID GETID 286 1277 ...
Страница 1320: ...1280 Model Conversion Instructions Unit Ver 3 0 or Later Section 3 35 ...
Страница 1390: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2 ...
Страница 1391: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits ...
Страница 1392: ...1352 ASCII Code Table Appendix A ...
Страница 1404: ...1364 Revision History ...