di2621.txt 
;**************************************************************************************************
; LISTING 1 - CODE SEGMENT FOR 80XC51 ARCHITECTURE
;
; "Look-up table facilities but flipping," EDN, Nov 23, 2000, pg 168

; http://www.ednmag.com/ednmag/reg/2000/11232000/designideas.htm#24di8
;
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	; Load value into accumulator (hex AA)
	mov		A, #10101010b
	; Load lookup table address into index
	mov     DPTR,#InvertTable
	; Load "flipped" value into accumulator
	movc    A,@A+DPTR
	; Accumulator should now hold hex 55