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MICROPROCESSOR INSTRUCTION REFERENCE->ADDD
ADDD Add Memory to Double Accumulator
A:B + M:(M+1) -> A:B
Condition Code Register:
C Set if carry generated, else cleared
V Set on overflow, else cleared
Z Set if result Zero, else cleared
N Set if result Negative, else cleared
I Not affected
H Not affected
Addressing mode | Assembler syntax |
Immed.: | ADDD #<exprn.> |
Direct: | ADDD <exprn.> |
Index X: | ADDD <exprn.>,X |
Index Y: | ADDD <exprn.>,Y |
Extend: | ADDD <exprn.> |