Re: A86: quickie division routines

To: assembly-86@lists.ticalc.org
Subject: Re: A86: quickie division routines
From: Walter DAO <wdao@netcom.com>
Date: Thu, 3 Sep 1998 23:40:12 -0700 (PDT)
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <c2817b08.35ef54fd@aol.com> from "DaveWLZ@aol.com" at Sep 3, 98 10:48:29 pm
Reply-To: assembly-86@lists.ticalc.org


> 
> 
> Does anyone have a quickie routines for 8-bit division?  We need something
> faster than FPDiv...we also only need the integer values of the results, so
> this makes things simpler.  If no one has any division routines, I'd be glad
> to whip something up.
> 

Is it a challenge ???
I have a 16 bit divide routine for 6502 (very easy to convert to z-80 if you
know what you are talking about).
It is must fast faster than floating point (what isn't ?) div.

				Walt

ps : code has to be relocatable, with as few absolute addressing and  local
var  as possible (keep them in regs).
The loading file must have a reloc' record/file as small as possible.
If a reloc' table is not needed , bonus points are awarded. 
pps : Cycle time ...
      It will be done Amiga Style ....
      either by video or by audio . (I havent done any research yet).
      Since everything is running relative to battery charge, 
      everything should be relative to a given hardware spec.

References:

A86: quickie division routines

From: DaveWLZ@aol.com