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Help me about parity bit sourcecode

 
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PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Mon Dec 27, 2004 12:50 pm     Reply with quote
To fix that routine, you need to move "data" into the W register,
and then mask it down so that only bit 0 is valid. See the two
lines that I've added right above the "return" statement at the end.

Code:
int8 find_parity(int8 data)
{
#asm
swapf data, W
xorwf data, F
rrf   data, W
xorwf data, F
btfsc data, 2
incf  data, F
movf  data, W
andlw 1
movwf _return_
#endasm
} 
 
a
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PostPosted: Mon Dec 27, 2004 1:24 pm     Reply with quote
thank you again. MR.PCM programmer and "ckielstra"Very Happy it's work.
i will try your sourcecode and used it for my thesis. i hope u happy in this year and next year. May be. i want your help in the future. thank you very much. you are the light for me. Very Happy
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