Re: [Algorithms] Byte Swapping

[Pierre T. <p.t...@wa...>]

Errr............ you'd better use the BSWAP instruction........ same result
with one line of assembly............

Pierre

----- Original Message -----
From: Charles Bloom <cb...@cb...>
To: <gda...@li...>
Sent: Tuesday, July 18, 2000 12:41 AM
Subject: Re: [Algorithms] Byte Swapping


>
> Jumping in late : I'm sure you don't need it now, but
> here's a crazy ANSI C byte-swapper :
>
> let x = a 32 bit ulong , ABCD
> then y = DCBA
>
> y = (x = x>>16 | x<<16) ^ (x = (x^x>>8) & 0x00FF00FF) ^ (x<<8);
>
> At 11:45 PM 7/15/2000 -0700, you wrote:
> >I can do the obvious method, but I was wondering if anyone have any
> >cool/fast code snippets for byte swapping integers and floats?
> >
> >Tom
> >
> >
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> >
> >
> --------------------------------------
> Charles Bloom           www.cbloom.com
>
>
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