Zilog Z80380 - Manual (Page 95)

5-61
Z380 ™
U SER ' S M ANUAL Z ILOG
DC-8297-03
EXXY
EXCHANGE IY REGISTER WITH ALTERNATE BANK
EXXY
Operation: SR(24)
←
NOT SR(24)
Bit 24 of the Select Register (SR), which controls the selection of primary or alternate bank
for the IY register, is complemented, thus effectively exchanging the IY register between the
two banks.
Flags: S: Unaffected
Z: Unaffected
H: Unaffected
V: Unaffected
N: Unaffected
C: Unaffected
Addressing Execute
Mode Syntax Instruction Format Time Note
EXXY 11111101 11011001 3