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Data Shift Instructions Section 3-9
Description WSFT(016) shifts data from St to E in word units and the data from the source
word S is places into St. The contents of E is lost.
Flags
Precautions When St is greater than E, an error will be generated and the Error Flag will
turn ON.
Note When large amounts of data are shifted, the instruction execution time is quite
long. Be sure that the power is not cut while WSFT(016) is being executed,
causing the shift operation to stop halfway through.
Examples When CIO 000000 is ON, data from CIO 0100 through CIO 0102 will be
shifted one word toward E. The contents of CIO 0300 will be stored in
CIO 0100 and the contents of CIO 0102 will be lost.
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 #0000 to #FFFF
(binary)
---
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 S St E
E
Lost
St
Name Label Operation
Error Flag ER ON when St is greater than E.
OFF in all other cases.
St
E
E: CIO 0100 St: CIO 0101 St: CIO 0102
S: CIO 0300
Lost
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