Hi Scott,

You'd have to know that the C flag wasn't going to be set by the ADDWF..
Otherwise you'd end up with (hourhand*5)+1

Assuming that the hourhand is going to be between 0 and 11 or 1 and 12, the
ADDWF will clear the carry for you and all will be ok..

Ash.

---
Ashley Roll
Digital Nemesis Pty Ltd
www.digitalnemesis.com
Mobile: +61 (0)417 705 718




> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Scott Dattalo
> Sent: Friday, 14 December 2001 2:24 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]:Multiply procedure
>
> That works, but it sounds like the goal is to keep "hourhand"
> in W instead
> of 2 times hourhand. Consider this snippet:
>
>    movf  hourhand,w
>    addwf hourhand,f   ; 2*
>    rlf   hourhand,f   ; 4*
>    addwf hourhand,f   ; 5* and w still contains the original
>
> Scott

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