Re: A85: 86 emulation on 85

To: assembly-85@lists.ticalc.org
Subject: Re: A85: 86 emulation on 85
From: Dark Ryder <DarkRyder@cyberdude.com>
Date: Mon, 28 Sep 1998 20:07:10 -0700
Delivered-To: assembly-85-outgoing@towerguard.unix.edu.sollentuna.se
Organization: House of Fish Enterprises
References: <686611f8.361039e8@aol.com>
Reply-To: assembly-85@lists.ticalc.org

CashOnly@aol.com wrote:
> > I know that different shells on the 86 will emu an 85, but is there any
> >  work being done on enulating an 86 on the 85?
> 
> It doesn't look good. The 86 uses paged RAM. The 85 does not. That is the main
> problem I have been told. Anyone wanna confirm?

Actually, that shouldn't be much of a problem.  90% (or more) of what's out
there doesn't use paging at all.  Even the interrupts and var routines could be
emulated pretty well using Usgard.  All the 86 ports of Usgard programs I've
done went _very_ smoothly (mostly just new .equ's and changed the & calls to
standard ones), and I've succesfully ported _everything_ I've written for the 86
to Usgard (I haven't posted any because they're pretty useless).  Maybe someone
should try.  The hardest part would be interpreting the in-program calls, which
are fixed for $D748 rather than relocatable.

-- 
Dark Ryder
ICQ#:     8189903
E-Mail:   DarkRyder@cyberdude.com

Happiness is inversely proportional to how much you want to upgrade your
computer.

-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GCS/CC/ED/IT/M/MU/P/S/O/AT (!)d-? s++(+):+(++) a?--- C++++$
UB>L+++ P L>+++ E- W+++$ !N o? K- w(---)$ !O M(+)(-) V?
PS+(+++) PE-- Y PGP t*+(+++) 5++ X+ R*+++ tv b+++ DI++++
D++ G++>++++ e*>+++++ h!>++ r-(+) y**++
------END GEEK CODE BLOCK------

References:

Re: A85: 86 emulation on 85

From: CashOnly@aol.com