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Individual Instruction Descriptions
4-162
4.14.67 SHLACS Shift Left Accumulator String Individually
Syntax
[label] name dest, src
Clock,
clk
Word,
w
With RPT,
clk
Class
SHLACS A
n
[~], A
n
[~] n
S
+2 1 n
R
+2 3
Execution
dest
⇐
src
<< 1
PC ⇐ PC + 1
Flags Affected OF, SF, ZF, CF are set accordingly
Opcode
Instructions 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
SHLACS A
n
[~], A
n
[~] 1 1 1 0 0 1 1 A
n
0 0 1 1 0 0 A~ ~A
Description Shift the source accumulator string
src
(or its offset) left one bit and store the
result in destination accumulator string (or its offset). Each accumulator is
shifted individually. The shifted bit is propagated through consecutive
accumulators in the string.
Example 4.14.67.1 SHLACS A1~, A1
Shift accumulator string A1 one bit to the left, store the result in accumulator string A1~. Note that this
instruction alters the content of all accumulators in the string.