Z86E3016PSG Datasheet, PDF (283/348 Pages) Zilog, Inc. – Z86E3016PSG

Z8 CPU
User Manual
265
Flag
C
Z
S
V
D
H
Description
Unaffected
Unaffected
Unaffected
Unaffected
Unaffected
Unaffected
Note: Address modes R or IR can be used to specify a 4-bit Working Register. In
this format, the source or destination Working Register operand is speci-
fied by adding 1110b (Eh) to the high nibble of the operand. For example,
if Working Register R12 (CH) is the destination operand, then ECh will be
used as the destination operand in the Op Code.
E
src
or
E
dst
Example
The statement:
LD R15, #34h
Op Code: FC 34
loads the value 34h into Working Register R15.
Example
If Register 34h contains the value FCh, the statement:
LD R14, 34h
Op Code: F8 34
loads the value FCh into Working Register R15. The contents of Register
34h are not affected.
Example
If Working Register R14 contains the value 45h, the statement:
UM001602-0904
Instruction Description