Re: Calculating checksums...

On Sat, 15 Mar 2008 03:18:56 GMT, I waved a wand and this message
magically appears in front of Tim Roberts:

> >How would you suggest I could rewrite this in NASM?
> 
> This is one of the easier algorithms to code in assembly.
> 
>     mov  cx, 511
>     xor  dl,dl
> again:
>     lodsb
>     add  dl,al
>     dec  cx
>     jnz  again
>     neg  al
>     mov  ds:[si],al

Indeed, that is what I would do if I wanted to calculate the checksum
at runtime but this FASM algorithm generates the checksum from the
contents of the assembled file and inserts it at the end of the file. I
was wondering if NASM was able to do that.
-- 
http://www.munted.org.uk

Fearsome grindings.