Re: [Algorithms] Byte Swapping

[Aaron D. <ri...@ho...>]

I'm assuming you're not after portability here. Off the top of my head you
could use an assembler snippet like below. Its in x86. I'm not sure if there
is a mac equiv of the xchg instruction but if thats not supported its 3 xors
for each. The code below doesn't rely on bswap.

mov    ebx,eax
shr     ebx,16
xchg   al,ah
xchg   bl,bh
shl      eax,16
or       eax,ebx

-----Original Message-----
From: Conor Stokes <cs...@tp...>
To: gda...@li...
<gda...@li...>
Date: Tuesday, 18 July 2000 11:19
Subject: Re: [Algorithms] Byte Swapping


>
>> Errr............ you'd better use the BSWAP instruction........ same
>result
>> with one line of assembly............
>>
>BSWAP is an x86 instruction :) Not much good if you wanna swap bytes on the
>Mac.
>
>Possibly there is a Mac equivelent, but I think it is RISC practice to
avoid
>such instructions.
>
>Conor Stokes
>
>
>_______________________________________________
>GDAlgorithms-list mailing list
>GDA...@li...
>http://lists.sourceforge.net/mailman/listinfo/gdalgorithms-list
>