ADDL loc32,ACC
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ADDL loc32,ACC Add Accumulator to Specified Location
SYNTAX OPTIONS OPCODE OBJMODE RPT CYC
ADDL loc32, ACC
0101 0110 0000 0001
0000 0000 LLLL LLLL
1 − 1
Operands loc32 Addressing mode (see Chapter 5)
ACC Accumulator register
Description Add to the ACC register the 32-bit content of the location pointed to by the
“loc32” addressing mode:
[loc32] = [loc32] + ACC;
This is a read-modify-write operation.
Flags and
Modes
N After the addition, the N flag is set if bit 31 of the ACC is 1, else N is cleared.
Z After the addition, the Z flag is set if the ACC is zero, else Z is cleared.
C If the addition generates a carry, C is set; otherwise C is cleared.
V If an overflow occurs, V is set; otherwise V is not affected.
OVC 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.
OVM If overflow mode bit is set, the ACC value will saturate maximum positive
(0x7FFFFFFF) or maximum negative (0x80000000) if the operation
overflows.
Repeat This instruction is not repeatable. If this instruction follows the RPT
instruction, it resets the repeat counter (RPTC) and executes only once.
Example
; Increment the 32-bit value VarA:
MOVB ACC,#1 ; Load ACC with 0x00000001
ADDL @VarA,ACC ; VarA = VarA + ACC
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