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Individual Instruction Descriptions
4-187Assembly Language Instructions
4.14.88 ZAC Zero Accumulator
Syntax
[label] name dest [, mod] Clock, clk Word, w With RPT, clk Class
ZAC An[~] [, next A] 1 1 n
R
+3 3
Execution [premodify AP if mod specified]
dest ⇐ 0
PC ⇐ PC + 1
Flags Affected ZF = 1
Instructions 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ZAC An[~] [, next A] 1 1 1 0 0 next A An 0 0 0 1 1 0 0 ~A
Description Zero the specified accumulator. Preincrement or predecrement accumulator
pointer APn, if specified.
See Also ZACS
Example 4.14.88.1 ZAC A2
Reset the content of accumulator A0 to zero.
Example 4.14.88.2 ZAC A1~, ++A
Preincrement AP1 by 1. Reset the content of new accumulator A1~ to zero.