Texas Instruments TMS320C28x Reference Manual page 193

ADDL ACC,loc32
ADDL ACC,loc32
SYNTAX OPTIONS
ADDL ACC,loc32
Operands ACC
loc32
Description
Flags and N
Modes Modes
Z
C
V
OVC
OVM
Repeat
Example
; Calculate the 32-bit value: VarC = VarA + VarB
MOVL ACC,@VarA
ADDL ACC,@VarB
MOVL @VarC,ACC
6-36
0000 0111 LLLL LLLL
Accumulator register
Addressing mode (see Chapter 5)
Add to the ACC register the 32-bit content of the location pointed to by the
"loc32" addressing mode:
ACC = ACC + [loc32];
After the addition, the N flag is set if bit 31 of the ACC is 1, else N is cleared.
After the addition, the Z flag is set if the ACC is zero, else Z is cleared.
If the addition generates a carry, C is set; otherwise C is cleared.
If an overflow occurs, V is set; otherwise V is not affected.
If (OVM = 0, disabled) then if the operation generates a positive overflow,
then the counter is incremented and if the operation generates a negative
overflow, then the counter is decremented. If (OVM = 1, enabled) then the
counter is not affected by the operation.
If overflow mode bit is set; then the ACC value will saturate maximum
positive (0x7FFFFFFF) or maximum negative (0x80000000) if the operation
overflows.
If this operation is repeated, then the instruction will be executed N+1 times.
The state of the Z, N, C flags will reflect the final result. The V flag will be set if
an intermediate overflow occurs. The OVC flag will count intermediate
overflows, if overflow mode is disabled.
Add 32-bit Value to Accumulator
OPCODE
; Load ACC with contents of VarA
; Add to ACC the contents of VarB
; Store result into VarC
OBJMODE RPT CYC
X Y N+1