Rabbit 2000 - Page 43

Instruction Reference Manual 39
Description
Decrements the data in IX or IY.
DEC IX
DEC IY
Opcode Instruction Clocks Operation
DD 2B DEC IX 4 (2,2) IX = IX - 1
FD 2B DEC IY 4(2,2) IY = IY - 1
Flags ALTD I/O
S Z L/V C F R SP S D
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