49 notac one’s complement negation of accumulator – Texas Instruments MSP50C614 User Manual
Page 235
Individual Instruction Descriptions
4-143
Assembly Language Instructions
4.14.49
NOTAC
One’s Complement Negation of Accumulator
Syntax
[label]
name
dest, src [, mod]
Clock,
clk
Word,
w
With RPT,
clk
Class
NOTAC
A
n[~], An[~] [, next A]
1
1
n
R
+3
3
Execution
[premodify AP if
mod specified]
dest
⇐
NOT
src
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
NOTAC A
n[~], An[~] [, next A]
1
1
1
0
0
next A
A
n
0
0
0
0
1
0
A~
~A
Description
Premodify accumulator pointer if specified. Perform one’s complement of
src
accumulator and store result in
dest accumulator.
See Also
NOTACS, AND, ANDB, ANDS, OR, ORB, ORS, XOR, XORB, XORS,
NEGAC, NEGACS
Example 4.14.49.1
NOTAC A3~, A3, ––A
Predecrement accumulator pointer AP3. One’s complement (invert bits) accumulator A3 and put result
in accumulator A3~.