
UM008007-0715 Z80 Instruction Description
Z80 CPU
User Manual
225
RR m
Operation
Op Code
RR
Operand
m
The m operand is any of r, (HL), (IX+d), or (lY+d), as defined for the analogous RLC
instructions. In the assembled object code, the possible op code/operand combinations are
specified as follows:
00 001
r*
11 0 11001
CB
11 0 11001
CB
11 1 01101
DD
11 0 11001
CB
11 1 01111
FD
11 0 11001
CB
RR r*
RR (HL)
RR (IX+d)
RR (IY+d)
d
d
00 1 10101
1E
00 1 10101
1E
00 0 10101
1E
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