Hi Scott.

What range is original X and Y ? 8 bits ( byte ) ?
What range is result ? Byte as well ?

More clarity is required ;)


WBR Dmitry.


-----Original Message-----
From: Scott Dattalo <scott@DATTALO.COM>
To: PICLIST@MITVMA.MIT.EDU
Date: Tue, 25 Sep 2001 22:01:24 -0700
Subject: Challenge: Shifting by a variable amount

>
> In C:
>
>   unsigned  char x;
>   unsigned  char y;
>
>  ...
>
>   x <<= y;
>
> How would you do this in PIC assembly?
>
> This has been discussed here before (but I couldn't find it in the
> archives) and IIRC a 12 cycle solution was found (by Dmitry?). I've got a
> 12-cycle solution, but thought it would be interesting to propose this as
> a challenge. (The winner may simply find the answer in the archives :).
>
> Scott
>
> --
> http://www.piclist.com hint: The PICList is archived three different
> ways.  See http://www.piclist.com/#archives for details.
>
>
>

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.