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RR r     Rotate Right Through Carry     Rabbit 2000/3000/4000/5000 Instruction

Opcode	Instruction	Operation
----	RR r	{r,CF} = {CF,r}
CB 1F	RR A	{A,CF} = {CF,A}
CB 18	RR B	{B,CF} = {CF,B}
CB 19	RR C	{C,CF} = {CF,C}
CB 1A	RR D	{D,CF} = {CF,D}
CB 1B	RR E	{E,CF} = {CF,E}
CB 1C	RR H	{H,CF} = {CF,H}
CB 1D	RR L	{L,CF} = {CF,L}

Clocks	8-Bit Access	16-Bit Unaligned	16-Bit Aligned
Rabbit 2000/3000/4000	4	n/a	n/a
Rabbit 5000	4	4	2

Flags				ALTD			IOI/IOE
S	Z	L/V	C	F	R	SP	S	D
·	·	L	·	·	·

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 the figure below.

Figure 12: The bit logic for the RR instruction.