Z86E3016PSG Datasheet, PDF (323/348 Pages) Zilog, Inc. – Z86E3016PSG

Z8 CPU
User Manual
305
Register Pointer (FDh)
Contents (Hex)
xxxx 0001
xxxx 0000
Expanded Register
Bank (Hex)
1
0
Flag
C
Z
S
V
D
H
Description
Unaffected
Unaffected
Unaffected
Unaffected
Unaffected
Unaffected
Note: When an Expanded Register Bank , other than Bank 0 is selected, access
to the Z8^® Standard Register File is possible except for the Port Register
and general purpose registers 04h to 0Fh.
fpr Register Addresses 0h to Fh
Example
The statement:
SRP F0h Op Code: 31 F0
sets the Register Pointer to access expanded Register Bank 0 and Working
Register Group F in the Z8^® Standard Register File. All references to
Working Registers now affect this group of 16 registers. Registers F0h to
FFh can be accessed as Working Registers R0 to R15.
Example
The statement:
SRP 0Fh
Op Code: 31 0F
UM001602-0904
Instruction Description