Rabbit 2000, Instruction & Reference Manual

Page: 129 / 174

Instruction Reference Manual 125
Description
Rotates to the right with the C flag the data in register r (any of the registers A, B, C, D, E, H, or L). Bit 0
moves to the C flag, bits 1 through 7 move to the next lowest-order bit position, and the C flag moves to bit 7.
See Figure 4 on page 122.
RR r
Opcode Instruction Clocks Operation
——
CB 1F
CB 18
CB 19
CB 1A
CB 1B
CB 1C
CB 1D
RR r
RR A
RR B
RR C
RR D
RR E
RR H
RR L
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
{ r ,CF} = {CF, r }
{A,CF} = {CF,A}
{B,CF} = {CF,B}
{C,CF} = {CF,C}
{D,CF} = {CF,D}
{E,CF} = {CF,E}
{H,CF} = {CF,H}
{L,CF} = {CF,L}
Flags ALTD I/O
S Z L/V C F R SP S D
• • L • • •