SWAP = Swap Low and High Nibbles

Hex Mnemonic Cycles
F6 SWAP A 8
F7 SWAP [HL] 12

Execute

A        = (8-Bits) Register A
[HL]     = (8-Bits) Memory: (I shl 16) or HL
    
; SWAP Ds
;
; Ds = Source/Destination

Ds = (Ds SHL 4) OR (Ds SHR 4)
    

Description

Swap low and high nibbles of a given byte.

Conditions

None

Examples

; A = 0x3A
SWAP A
; A = 0xA3
    
; [HL] = 0xF6
SWAP [HL]
; [HL] = 0x6F
    

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