Hi Craig,
I think I've got it, here's the new code and it appears to be working. The next thing I want to work on is this part:



.ORG 2000H
MOV A,#9FH ;SET UP
MOV DPTR,#0F803H ; PORT A
MOVX @DPTR,A ; AS AN INPUT
MOV A,#89H ;SET UP
MOV DPTR,#0F903H ; PORT E
MOVX @DPTR,A ; AS AN OUTPUT
MOV 40H,#00 ;CLEAR FLAG-IS LED ON/OFF
MOV A,#0FFH ;TURN OFF
MOV DPTR,#0F901H ; ALL LEDS
MOVX @DPTR,A ; TO PORT E
RESET1:MOV R6,#10 ;OUTER LOOP TO DET. VALID STATE
RESET:MOV R7,#00 ;INNER LOOP TO DET. VALID STATE
MOV DPTR,#0F800H ;POINT TO PORT A
MOVX A,@DPTR ; TO READ SWITCH
MOV 50H,A ;SAVE RESULT OF SWITCH READ
READ:MOV DPTR,#0F800H ;POINT TO PORT A
MOVX A,@DPTR ;READ SWITCH AGAIN
CJNE A,50H,RESET1 ;COMPARE SAVED TO NEW
DJNZ R7,READ ;DECREMENT INNER LOOP
DJNZ R6,READ ;DECREMENT OUTER LOOP
MOV A,50H ;IS SWITCH OPEN/CLOSED
JNZ RESET1 ;IF SWITCH OPEN (A=NOT ZERO)
MOV A,40H ;MONITOR FLAG
JNZ CLEAR
SET:INC 40H ;SET FLAG
MOV DPTR,#0F901H ;POINT TO PORT E
MOV A,#0FFH
MOVX @DPTR,A ;TURN ON LED
SJMP RESET
CLEAR:DEC 40H ;CLEAR FLAG
MOV DPTR,#0F901H ;POINT TO PORT E
MOV A,#0FEH
MOVX @DPTR,A ;TURN OFF LED
SJMP RESET

I hope to post the final product tonight. Thanks-Lisa