ZiLOG Z80380 User Manual page 93

Z
ILOG
EXX
← NOT SR(8)
Operation: SR(8)
Bit 8 of the Select Register (SR), which controls the selection of primary or alternate bank
for the BC, DE, and HL registers, is complemented, thus effectively exchanging the BC, DE,
and HL registers between the two banks.
Flags: S: Unaffected
Z: Unaffected
H: Unaffected
V: Unaffected
N: Unaffected
C: Unaffected
Addressing
Mode Syntax
EXX
DC-8297-03
EXCHANGE REGISTERS WITH ALTERNATE BANK
Instruction Format
11011001
Execute
Time Note
3
™
Z380
U ' M
SER S ANUAL
EXX
5-59