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The following instructions perform byte-wise shifts of the contents of
rA
and rX
.
SLA
SRA
SLAX
SRAX
SLC
SRC
If we begin with, say, [rA]
= - 01 02 03 04 05, we would
have the following modifications to rA
contents when performing
the instructions on the left column:
SLA 2 | [rA] = - 03 04 05 00 00
|
SLA 6 | [rA] = - 00 00 00 00 00
|
SRA 1 | [rA] = - 00 01 02 03 04
|
Note that the sign is unaffected by shift operations. On the other
hand, SLC
, SRC
, SLAX
and SRAX
treat
rA
and rX
as a single 10-bytes register (ignoring again
the signs). For instance, if we begin with [rA]
= + 01 02 03 04 05 and [rX]
= - 06 07 08 09 10, we would have:
SLC 3 | [rA] = + 04 05 06 07 08 | [rX] = - 09 10 01 02 03
|
SLAX 3 | [rA] = + 04 05 06 07 08 | [rX] = - 09 10 00 00 00
|
SRC 4 | [rA] = + 07 08 09 10 01 | [rX] = - 02 03 04 05 06
|
SRAX 4 | [rA] = + 00 00 00 00 01 | [rX] = - 02 03 04 05 06
|