Re: [Rpcemu] Emulate other ARM processors?

Incidentally, I wondered about the cycle-accuracy of the emulation. Could we have accurare emulation of ARM2/250/3 level performance even if we can't emulate the hardware of the Archimedes at this point?

On 3 March 2018 at 22:46, J Percival <perciv.js@gmail.com> wrote:

It's strange that Acorn were...at least in some people's opinion - big on backwards compatibility - but compared to the PC world, they didn't seem to do it very well.

Regarding Arculator/RPCEmu, I don't know, but looking at http://b-em.bbcmicro.com/arculator/ V0.1 of Arculator came out before V0.1 (or any version) of RPCEmu.

On 3 March 2018 at 21:36, Peter Howkins <rpcemu.howkins@marutan.net> wrote:

On Thu, Mar 01, 2018 at 04:20:58PM +0000, Gerald Holdsworth wrote:
> Probably a stupid question, but, I've been thinking recently, how difficult
> would it be to extend the RPCemu emulation to emulate the ARM2, ARM250,
> and ARM3 processors in order to run Arthur, RISC OS 2 and RISC OS 3 in
> (and, effectively, emulate an Archimedes)?

It's a large amount of work for archimedes support, of which the ARM is
the relatively easy bit.

I've considered it, but it's a long long way from happening anytime soon.

> Didn't RPCemu evolve from Arculator, originally?

I think it might have been the other way round, though I'm not sure. They
both shared a large chunk of code.

In general, stick to Arculator, if it does what you want it too.

Peter

--
Peter Howkins
peter.howkins@marutan.net

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