Texas Instruments TMS320C28x Reference Manual page 424

POP ACC
SYNTAX OPTIONS
POP ACC
Operands ACC
Description
Flags and N
Modes
Z
Repeat
0001 1110 1011 1110
Accumulator
Predecrement SP by 2. Load ACC with the 32-bit value pointed to by SP:
SP −= 2;
ACC = [SP];
The load to ACC is tested for a negative condition. Bit-31 of the ACC register
is the sign bit, 0 for positive, 1 for negative. The negative flag bit is set if the
operation on the ACC register generates a negative value, otherwise it is
cleared.
The load to ACC is tested for a zero condition. The bit is set if the result of the
operation on the ACC register generates a 0 value, otherwise it is cleared
This instruction is not repeatable. If this instruction follows the RPT
instruction, it resets the repeat counter (RPTC) and executes only once.
Pop Top of Stack to Accumulator
OPCODE OBJMODE
POP ACC
RPT CYC
X − 1
6-267