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> RLB A,BCDE
> RLB A,JKHL Rotate Left with A Rabbit 4000 Instruction

> Opcode | Instruction | Clocks | Operation
> DD 6F | RLB A,BCDE | 4 (2,2) | {A,BCDE} = {BCDE,A}
> FD 6F | RLB A,JKHL | 4 (2,2) | {A,JKHL} = {JKHL,A}

> Flags | ALTD | IOI/IOE
> S | Z | L/V | C | F | R | SP | S | D
> - | - | - | - |  |  |  |  |

> #### Description

> Rotates BCDE or JKHL to the left with A. The bits are rotated 8 at a time, as illustrated in the figure below. Bits 0 through 23 are shifted 8 bits to bit positions 8 through 31. Bits 31 through 24 are shifted to A and A is shifted to bits 7 through 0.

> Figure 4: The bit logic of the "RLB A, BCDE" instruction

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