RLC BC
RLC DE     Rotate Left Affect Carry     Rabbit 4000 Instruction

Opcode	Instruction	Clocks	Operation
60	RLC,BC	2	BC = {BC[14,0],B[7]} CF = B[7]
50	RLC,DE	2	DE = {DE[14,0],D[7]} CF = D[7]

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

Description

Rotates BC or DE to the left (bit 0 moves to bit 1, etc.). The highest-order bit is rotated to the C flag and bit 0. See the figure below.

Figure 5: The bit logic of the RLC instruction