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From: kvj@rhi.hi.is (Kristjan Valur Jonsson)
Newsgroups: comp.sys.acorn,eunet.micro.acorn
Subject: Re: Emulation + would have posted
Message-ID: <2574@krafla.rhi.hi.is>
Date: 27 Dec 90 14:36:39 GMT
References: <7619@castle.ed.ac.uk>
Followup-To: comp.sys.acorn
Organization: University of Iceland
Lines: 19

In <7619@castle.ed.ac.uk> as@castle.ed.ac.uk (A Stevens) writes:

>I cannot imagine that ROM images would be a big problem for people
>wanting to build a superior BBC-B emulation. Surely you could just
>release the emulator as a ``patch'' sitting on top of the existing one
>distributed by Acorn which - they claim at least - contains pretty much
>unchanged MOS1.2 along with ARFS and the Utils ``ROMS''.

Perhaps the problem is that the emulator guys want to reprogram the
BBC OS ROMS in ARM code, and they surely would need Acorn's permission
to do that. That would mean a rather nice speed increase. (Imagine calling
the 6502 routines every time a char is written on the screen)

I understand that when buying emulators for other computers (eg. Mac emulators
for the Commodore Amiga) , that often are hardware based,  one has to obtain
the necessary roms himself.  That wouldn't be too hard with a Spectrum
emulator, would it?

Kristjan Valur Jonsson.