Zilog Z80380 - Manual (Page 86)

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Z380 ™
U SER ' S M ANUAL
DC-8297-03
Z ILOG
EX
EXCHANGE REGISTER (WORD)
EX dst,src dst = R, RX
src = R, RX
Operation: if (LW) then begin
dst(31-0)
↔
src(31-0)
end
else begin
dst(15-0)
↔
src(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 Execute
Mode Syntax Instruction Format Time Note
R: EX BC,DE 11101101 00000101 3 L
EX BC,HL 11101101 00001101 3 L
EX DE,HL 11101011 3 L
RX: EX R,RX 11101101 00rry011 3 L
EX IX,IY 11101101 00101011 3 L
Field Encodings: rr: 00 for BC, 01 for DE, 11 for HL
y:
0 for IX, 1 for IY