Re: A82: hl*16

To: assembly-82@lists.ticalc.org
Subject: Re: A82: hl*16
From: Jeremy Wazny <j.wazny@ugrad.unimelb.edu.au>
Date: Wed, 1 Dec 1999 22:16:02 +1100 (EST)
In-Reply-To: <19991130180321.86784.qmail@hotmail.com>
Reply-To: assembly-82@lists.ticalc.org

If there's an upper bound on the value l can have at that point in the
program that is <= 127 it is faster (but will cost you an extra byte) to
sll l. In the general case, 4 adds looks pretty tight. 

-Jeremy

On Tue, 30 Nov 1999, Doug Torrance wrote:

> 
> Is there a better way to multiply hl times 16 than adding it to itself 4 
> times?
> 
> 	add hl,hl
> 	add hl,hl
> 	add hl,hl
> 	add hl,hl
> 
> Thanks!
> Doug
> 
> 
> ______________________________________________________
> Get Your Private, Free Email at http://www.hotmail.com
>

Follow-Ups:

Re: A82: hl*16

From: Jeremy Wazny <j.wazny@ugrad.unimelb.edu.au>

References:

From:

Prev: Re: A82: hl*16
Next: Re: A82: hl*16
Index(es):
- Main
- Thread