Texas Instruments TMS320C28x Reference Manual page 328

Example
; Swap the contents of VarA and VarB if VarB is higher then VarA:
MOV AL,@VarA
MOV AH,@VarB
CMP AH,@AL
MOV @VarA,AH,HI
MOV @VarB,AL,HI
; AL = VarA, XAR2 points to VarB
; AH = VarB, XAR2 points to VarA
; Compare AH and AL
; Store AH in VarA if higher
; Store AL in VarB if higher
MOV loc16, AX, COND
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