On Tue, 24 Aug 2010 15:33:19 -0400, Jim Henderson wrote:

> On Tue, 24 Aug 2010 17:18:01 +0100, Orchid XP v8 wrote:
> 
>>>> Shifts are perfectly legitimate mathematical operations. Many of the
>>>> things computers do couldn't be done easily without a shift operation
>>>> :P
>>> 
>>> Binary shifts are multiplication and division as well. :P
>> 
>> What you want is binary rotations. ;-)
> 
> That depends on whether the bits actually get rotated.  From my
> recollection of x86 assembly, it's a shift, not a rotation. :)
> 
> Jim

My recollection, of course, has changed now that I re-read this, I 
remember ROR and ROL operators, which do in fact rotate.  I just remember 
using SHL and SHR more frequently.

Jim

Post a reply to this message