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TEST ACC
6-362
TEST ACC
Test for Accumulator Equal to Zero
SYNTAX OPTIONS
OPCODE
OBJMODE
RPT
CYC
TEST ACC
1111 1111 0101 1000
X
−
1
Operands
ACC
Accumulator register
Description
Compare the ACC register to zero and set the status flag bits accordingly:
Modify flags on (ACC − 0x00000000);
Flags and
Modes
N
If bit 31 of the ACC is 1, N is set; else N is cleared.
Z
If ACC is zero, Z is set; else Z is cleared.
Repeat
This instruction is not repeatable. If this instruction follows the RPT in-
struction, it resets the repeat counter (RPTC) and executes only once.
Example
; Test contents of ACC and branch if zero:
TEST ACC
; Modify flags on (ACC − 0x00000000)
SB Zero,EQ
; Branch if zero
Summary of Contents for TMS320C28x
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Page 269: ...IN loc16 PA 6 112 MOV AL 0 AL 0 UOUT IORegC AL IOspace IORegC AL 10...
Page 308: ...MAXCUL P loc32 6 151 Saturate MOVL Var64 2 ACC Store result into Var64 MOVL Var64 P...
Page 509: ...SUBL ACC P PM 6 352 SUBL ACC P PM ACC S B 11 M X 4 MOVH Y ACC 5 Store Q15 result into Y...
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