Rabbit 2000 - Dec (Hl)

38 Rabbit 2000/3000 Microprocessor
Description
Decrements the byte whose address is:
•inHL,or
• the data in IX plus a displacement value d,or
• the data in IY plus a displacement value d.
DEC (HL)
DEC (IX+d)
DEC (IY+d)
Opcode Instruction Clocks Operation
35 DEC (HL) 8 (2,1,2,3) (HL) = (HL) - 1
DD 35 d DEC (IX+D) 12 (2,2,2,1,2,3) (IX + d)=(IX+d)-1
FD 35 d DEC (IY+D) 12 (2,2,2,1,2,3) (IY + d)=(IY+d)-1
Flags ALTD I/O
S Z L/V C F R SP S D
• • V - • • •