COM op code
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Joined: Sep 2003
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From: Texas
COM op code
Wasn't sure of a good subject header....
I have a ram variable that I want to work with that
ranges from 255>0. I want to use it for a look up table.
This would require me to invert the table to match.
While this works, it looks screwy.
How would I go about changing the ram variable to range from 0>255 after loading it to an ACC?
I have a ram variable that I want to work with that
ranges from 255>0. I want to use it for a look up table.
This would require me to invert the table to match.
While this works, it looks screwy.
How would I go about changing the ram variable to range from 0>255 after loading it to an ACC?
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Joined: Mar 2002
Posts: 18,432
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
As you are thinking the COM instruction is the correct one. Load the variable into reg A and COMA it (or reg B and COMB it). It is a straight 1's compliment.
Rbob.
Rbob.
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