Instruction Reference Manual 33
Description
Exchanges the data in word registers BC, DE, and HL, with the data in their respective alternate word regis-
ters BC', DE', and HL'.
Description
Increments the byte whose address is:
• heldinwordregisterHL, or
• the sum of the data in index register IX and a displacement value d, or
• the sum of the data in index register IY and a displacement value d.
EXX
Opcode Instruction Clocks Operation
D9 EXX 2 BC <−> BC'; DE <−> DE'; HL <−> HL'
Flags ALTD I/O
S Z L/V C F R SP S D
- - - -
INC (HL)
INC (IX+d)
INC (IY+d)
Opcode Instruction Clocks Operation
34 INC (HL) 8 (2,1,2,3) (HL) = (HL) + 1
DD 34 d INC (IX+d) 12 (2,2,2,1,2,3) (IX + d)=(IX+d)+1
FD 34 d INC (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 - • • •