PM_Opc_XCHG

== XCHG = Exchange Registers ==

Hex	Mnemonic	Cycles
C8	XCHG BA, HL	12
C9	XCHG BA, X	12
CA	XCHG BA, Y	12
CB	XCHG BA, SP	12
CC	XCHG A, B	8
CD	XCHG A, [HL]	12

Execute

A        =  (8-Bits) Register A B        =  (8-Bits) Register B BA       = (16-Bits) Register BA: (B shl 8) or A HL       = (16-Bits) Register HL: (H shl 8) or L X        = (16-Bits) Register X Y        = (16-Bits) Register Y SP       = (16-Bits) Register SP (Stack Pointer) [HL]     =  (8-Bits) Memory: (I shl 16) or HL

; XCHG Sc2, Sc ; ; Sc2 = Source 2 ; Sc  = Source ; Tr = Temporary Register

Sc2   Sc    \ /     x    / \ Sc2   Sc

Description

"Source" content is exchanged (swapped) with "Source 2".

Conditions

None

Examples

; BA = 0x1337 ; HL = 0xC0D3 XCHG`` ``BA,`` ``HL ; BA = 0xC0D3 ; HL = 0x1337

; A = 0x45 ; B = 0x12 XCHG`` ``A,`` ``B ; A = 0x12 ; B = 0x45

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