ZiLOG Z80380 User Manual page 88

Z
ILOG
EX
EXCHANGE REGISTER WITH ALTERNATE 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, where the
destination is a word register in the primary bank and the source is the corresponding word
register in the alternate bank.
Flags: S: Unaffected
Z: Unaffected
H: Unaffected
V: Unaffected
N: Unaffected
C: Unaffected
Addressing
Mode Syntax
R: EX R,R'
RX: EX RX,RX'
Field Encodings: rr: 00 for BC, 01 for DE, 11 for HL
y: 0 for IX, 1 for IY
5-54
src = R, RX
↔
src(31-0)
↔
src(15-0)
Instruction Format
11101101 11001011 001100rr
11101101 11001011 0011010y
Execute
Time Note
3 L
3 L
DC-8297-03
Z380 ™
U ' M
SER S ANUAL