Re: A85: Saving the 85

To: assembly-85@lists.ticalc.org
Subject: Re: A85: Saving the 85
From: mgp4007@omega.uta.edu (Michael Pearce)
Date: Wed, 05 Aug 1998 13:57:03 GMT
Delivered-To: assembly-85-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <d41ae06b.35c7f894@aol.com>
References: <d41ae06b.35c7f894@aol.com>
Reply-To: assembly-85@lists.ticalc.org


I couldn't imagine that there are very many more ROM calls that would
be useful to games (certainly most are math based).  What ROM calls
are there in the 86 that are useful to game programming that the 85
does not have?  certainly not all programs could be emulated, but
possibly most games.

-mike pearce

On Wed, 5 Aug 1998 02:15:46 EDT, you wrote:

>
>> We need to in a way reverse ASE or Rascall (is that
>> what it's called?) and get 86 emulation for the 85.
>
>As great as this sounds in theory, it's nearly impossible.
>The TI-85 was not made to run assembly and the ROM
>calls that asm programs can use are quite limited.
>The TI-86 has a much larger number of ROM calls, in
>fact almost everything is a ROM call.  TI-85 emulation
>just required an 86 version of the ROM call table found
>in ZShell.  It can't be reversed because the great
>majority of the calls on the 86 are not available on the
>85.  You'd have to put half the ROM in the shell.  And
>even then, TI-85 programs call the ROM through
>the shell.  TI-86 programs call the ROM through the
>ROM.  You can't change ROM.
>

References:

Re: A85: Saving the 85

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