RLC b,JKHL     Rotate Left Affect Carry     Rabbit 4000 Instruction

Opcode	Instruction	Clocks	Operation
--	RLC b,JKHL	4 (2,2)	JKHL = {JKHL[30,0],J[7]}   CF = J[7]   b = b-1 repeat while b != 0
FD 68	RLC 1,JKHL	4 (2,2)	JKHL = {JKHL[30,0],J[7]}   CF = J[7]   b = b-1 repeat while b != 0
FD 69	RLC 2,JKHL	4 (2,2)	JKHL = {JKHL[30,0],J[7]}   CF = J[7]   b = b-1 repeat while b != 0
FD 6B	RLC 4,JKHL	4 (2,2)	JKHL = {JKHL[30,0],J[7]}   CF = J[7]   b = b-1 repeat while b != 0

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

Description

Rotates JKHL to the left (bit 0 moves to bit 1, etc.) while bit 7 of the highest-order byte moves to bit 0 of the lowest-order byte and the C flag. This operation happens b number of times. See Figure 6 for an illustration.