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An 8052 based system has an output port with address 00H. Consider the following assembly language program.

ORG 0100H
MVI A, 00H
LXI H, 0105H
OUT 00H
INR A
PCHL	
HLT	
  1. What does the program do with respect to the output port $00H$ ?

  2. Show the waveforms at the three least significant bits of the port $00H$.

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