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What is the 8051 code for a bidirectional visitor counter?
Can you tell me the 8051 code for a bidirectional visitor counter?
Sure, I can help you with that. Here is the code:

; Initializing the data memory
LDA #00H
STA 40H
STA 41H

; Initializing the external interrupts
MOV IE, #81H

; Setting the counter to begin at 0
MOV R1, #00H
MOV R2, #00H

; Main program loop
Main:  NOP
       SJMP Main