ZiLOG Z80380 User Manual page 86

Z
ILOG
EX
EXCHANGE REGISTER (WORD)
EX dst,src
Operation: if (LW) then begin
dst(31-0)
end
else begin
dst(15-0)
end
The contents of the destination are exchanged with the contents of the source.
Flags: S: Unaffected
Z: Unaffected
H: Unaffected
V: Unaffected
N: Unaffected
C: Unaffected
Addressing
Mode Syntax
R: EX BC,DE
EX BC,HL
EX DE,HL
EX R,RX
RX:
EX IX,IY
Field Encodings: rr: 00 for BC, 01 for DE, 11 for HL
y: 0 for IX, 1 for IY
5-52
dst = R, RX
src = R, RX
↔
src(31-0)
↔
src(15-0)
Instruction Format
11101101 00000101
11101101 00001101
11101011
11101101 00rry011
11101101 00101011
Execute
Time Note
3 L
3 L
3 L
3 L
3 L
Z380 ™
U ' M
SER S ANUAL
DC-8297-03