Date   : Thu, 18 Aug 1994 15:42:13 WET DST
From   : Bonfield James <jkb@...>
Subject: Re: announcement of xbeeb

James F. writes:

>He very politely declined to post my message because he did not feel
>comfortable with the idea of a software emulation of a copyrighted
>hardware design.  He does work at Acorn, so he may be being over-
>cautious, but I can sympathise with his point of view.
>
>What's everyone else think ?

I think technically he's got a valid point, but it's a somewhat nit picky one.
Acorn knew of our intentions of creating a BBC emulator as several of us asked
them about ROM copyrights. The BBC though is slightly different from most
other machines that have been emulated in that the company who designed the
BBC have their own emulator that they market.

I've just ftped your emulator and taken a look. I'm most impressed and pleased
with the progress! (Although the 100 chars per line source could make it hard
to read - not a problem for us "X" people though.)

I'm just compiling and testing it under DEC OSF/1 V2.0 on an Alpha. That's
usually a reasonable test for code robustness :)

[pause]

It dies with:

Illegal opcode -- 0xfa

(And yes, the Alpha is a little endian system.)
I'll have a go at debugging sometime (but I've work to do presently).

       James