What would be a program for deciphering the signals coming out of a pc's parellel port running a 8052 programing software?

I have some idea what the signals are like. They are low in frequency at around 100 Hz or less if the software is set so. I have heard them. A kind of
fast cliking.

It may be a serial signals with redundacies on other pins. I have tacken care of printer enable signals and ground.

Now I need assemble code to look at what the signals are like.


mov 00, p1.1
mov 01,p1.1 : Take samples of one of the pc port pins
mov 02, p1.1
...
...
...
mov 3F,p1.1 :Trouble, ran out of 256 Byte? memory
---------------------------------------
Must make beter use of memory.

mov 00,p1.1 :Take samples of one of the pc port pins
acall $50 :delay subroutine
mov 01,p1.1
acall $50
mov 02,p1.1
...
...
...
inc r1
mov p2.0,@r1 :read out the samples and shift them across
mov p2.1,@r1+1 the p2 port
mov p2.2,@r1+2
...
...
...
mov p2.7,@r1+7
acall $70 :delay subruotine DD
..................................................

At least with that program I should be able to see weather two of parellel port pins are giving the same signals.

The more compact the program the better as I only have a programer that has limited automation. But if its to much trouble to write a compact assembly program I might be able to get a big one in there.