A86: Re: simple math optimization

To: <assembly-86@lists.ticalc.org>
Subject: A86: Re: simple math optimization
From: "Matt2000" <matt2000@gte.net>
Date: Mon, 11 May 1998 17:39:22 -0400
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-86@lists.ticalc.org


>What's the fastest way to do
>
>hl = (16 * d) + e


Well if you were doing hl = (16 * e) + d
 then you could do:

ld h, e
ld l, d

But if you have to do it that way I guess you can do:
sla d
sla d
sla d
sla d
ld l, e

This would seem logical. But then again, I could be wrong

Later,
    Matt

>The code I have is chunky, and I need to optimize it.  I'm still new at
this
>stuff, so I don't really know what I'm doing before I actually try it.  =)

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Re: A86: Re: simple math optimization

From: Dan Eble <eble@cis.ohio-state.edu>

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