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SLA r     Shift Left Arithmetic     Rabbit 2000/3000/4000/5000 Instruction

Opcode	Instruction	Operation
----	SLA r	r = {r[6,0],0}; CF = r[7]
CB 27	SLA A	A = {A[6,0],0}; CF = A[7]
CB 20	SLA B	B = {B[6,0],0}; CF = B[7]
CB 21	SLA C	C = {C[6,0],0}; CF = C[7]
CB 22	SLA D	D = {D[6,0],0}; CF = D[7]
CB 23	SLA E	E = {E[6,0],0}; CF = E[7]
CB 24	SLA H	H = {H[6,0],0}; CF = H[7]
CB 25	SLA L	L = {L[6,0],0}; CF = L[7]

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

Arithmetically shifts to the left the bits of the data in register r (any of A, B, C, D, E, H, or L). Bits 0 through 6 are each shifted to the next highest-order bit position (bit 0 moves to bit 1, etc.). Bit 7 is shifted to the C flag. Bit 0 is reset. See the figure below.

Figure 19: The bit logic of the SLA instruction.