ZiLOG Z80380 User Manual page 210

Z
ILOG
SWAP
SWAP UPPER REGISTER WORD WITH LOWER REGISTER WORD
SWAP src
src(31-16) ↔ src(15-0)
Operation:
The contents of the most significant word of the source are exchanged with the contents of
the least significant word of the source.
Flags: S: Unaffected
Z: Unaffected
H: Unaffected
V: Unaffected
N: Unaffected
C: Unaffected
Addressing
Mode Syntax
R: SWAP R
RX: SWAP RX
Field Encodings: rr: 00 for BC, 01 for DE, 11 for HL
y: 0 for IX, 1 for IY
5-176
src = R, RX
Instruction Format
11101101 00rr1110
11y11101 00111110
Execute
Time Note
2
2
DC-8297-03
Z380 ™
U ' M
SER S ANUAL