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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