Miscellaneous - Nintendo DMG-01 - Game Boy Console Manual

3.3.5. Miscellaneous

3.3.5. Miscellaneous
1. SWAP n
Description:
Swap upper & lower nibles of n.
Use with:
n = A,B,C,D,E,H,L,(HL)
Flags affected:
Z - Set if result is zero.
N - Reset.
H - Reset.
C - Reset.
Opcodes:
Instruction
SWAP
SWAP
SWAP
SWAP
SWAP
SWAP
SWAP
SWAP
Page 94
Parameters
A
B
C
D
E
H
L
(HL)
Game Boy
Opcode Cycles
CB 37 8
CB 30 8
CB 31 8
CB 32 8
CB 33 8
CB 34 8
CB 35 8
CB 36 16
TM
CPU Manual
V 1.01