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Data Shift Instructions Section 3-9
Operands C: Control Word
Note St and E must be in the same data area.
Operand Specifications
Description When the Shift Enable Bit (bit 14 of C) is ON, all of the words with non-zero
content within the range of words between St and E will be shifted one word in
the direction determined by the Shift Direction Bit (bit 13 of C) whenever the
word in the shift direction contains all zeros. If ASFT(017) is repeated suffi-
cient times, all all-zero words will be replaced by non-zero words. This will
result in all the data between St and E being divided into zero and non-zero
data.
15 14 13 12
Shift direction
0: Non-zero data shifted toward E
1: Non-zero data shifted toward St
Shift Enable Bit
0: Shift disabled
1: Shift enabled
Clear Bit
0: Data not reset
1: All data from St to E is reset
Area C St E
CIO Area CIO 0000 to CIO 6143
Work Area W000 to W511
Holding Bit Area H000 to H511
Auxiliary Bit Area A000 to A959 A448 to A959
Timer Area T0000 to T4095
Counter Area C0000 to C4095
DM Area D00000 to D32767
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
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