Zilog Z8F0130 - Manual (Page 231)

eZ8
™
CPU Core
User Manual
UM012820-0810 RRC Instruction
216
Attributes
Escaped Mode Addressing
Using Escaped Mode Addressing, address modes R or IR specify a work-
ing register. If the destination address is prefixed by
Eh ( 1110b ), a work-
ing register is inferred. For example, if Working Register R12 ( Ch ) is the
preferred destination operand, use ECh as the destination operand in the
Op Code. To access registers with addresses E0h to EFh , either set the
Working Group Pointer, RP[7:4] , to Eh or use indirect addressing.
Sample Usage
If Register C6h contains the value DDh ( 11011101b ) and the Carry flag is
reset, the following statement leaves the value 6Eh ( 01101110b ) in Reg-
ister C6h , sets the C and V flags and clears the Z and S flags:
RRC C6h

Object Code: C0 C6
If Register 2Ch contains the value EDh , Register EDh contains the value
00h ( 00000000b ) and the Carry flag is reset, the following statement
leaves the value 00h ( 00000000b ) in Register EDh and resets the C, Z, S,
and V flags:
RRC @2Ch

Object Code: C1 2C
Mnemonic Destination
Op
Code
(Hex)
Operand 1 Operand 2 Operand 3
RRC R1 C0 R1 — —
RRC @R1 C1 R1 — —