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385
Data Shift Instructions
Section 3-9
Description
RLNC(574) shifts all bits of Wd to the left (from rightmost bit to leftmost bit).
The contents of the leftmost bit of Wd shifts to the rightmost bit and to the
Carry Flag (CY).
Flags
Precautions
When RLNC(574) is executed, the Error Flag will turn OFF.
If as a result of the shift the contents of Wd is zero, the Equals Flag will turn
ON.
If as a result of the shift the contents of the leftmost bit of Wd is 1, the Nega-
tive Flag will turn ON.
Examples
When CIO 000000 is ON, word CIO 0100 will shift one bit to the left (exclud-
ing the Carry Flag (CY)). The contents of CIO 010015 will be shifted to
CIO 010000.
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
Wd
Name
Label
Operation
Error Flag
ER
OFF
Equals Flag
=
ON when the shift result is 0.
OFF in all other cases.
Carry Flag
CY
ON when 1 is shifted into the Carry Flag (CY).
OFF in all other cases.
Negative Flag
N
ON when the leftmost bit is 1 as a result of the shift.
OFF in all other cases.
Содержание SYSMAC CS1D-CPU**
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Страница 185: ...146 List of Instructions by Function Code Section 2 4...
Страница 193: ...154 3 35 4 MOVE BIT MOVBC 568 1274 3 35 5 BIT COUNTER BCNTC 621 1276 3 35 6 GET VARIABLE ID GETID 286 1278...
Страница 1389: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2...
Страница 1390: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits...
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