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> LD dd',BC
> LD dd',DE Load Rabbit 2000/3000/4000 Instruction

> Opcode | Instruction | Clocks | Operation
> ---- | LD dd',BC | 4 (2,2) | dd' = BC
> ED 49 | LD BC',BC | 4 (2,2) | BC' = BC
> ED 59 | LD DE',BC | 4 (2,2) | DE' = BC
> ED 69 | LD HL',BC | 4 (2,2) | HL' = BC
> ---- | LD dd',DE | 4 (2,2) | dd' = DE
> ED 41 | LD BC',DE | 4 (2,2) | BC' = DE
> ED 51 | LD DE',DE | 4 (2,2) | DE' = DE
> ED 61 | LD HL',DE | 4 (2,2) | HL' = DE

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

> #### Description

> Loads the alternate register dd' (any of the registers BC', DE', or HL') with BC or DE.

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