Date   : Mon, 04 Mar 1996 15:32:06 +0000 (GMT)
From   : Mark Cooke <mpc@...>
Subject: Re: BBC: Radical rethinks! :-)

On Mon, 4 Mar 1996, Chris Rae wrote:

> I'm hoping that if I can find an instruction set from somewhere, I could 
> have a working 6502 with botched system calls up and going within a 
> couple of weeks. Honestly, you've no idea what it feels like to realise 
> that 9000 lines of sweated-over assembler has just gone up in smoke...

I know exactly what this feels like - I faced a similar loss way back 
when...

:-(

Still - it's given you incentive to start again and incorporate all those 
neat and nifty ideas that you really wanted to fit into the old version, 
but were too invasive to retrofit :-)

As for instruction sets, my fairly faulty memory seems to recall that 
there is a list of opcodes on the web site at 

http://www.OiT.co.uk/~james/BBCMicro/

in the documentation section. Roms I can try to dog you out, but I don't 
have them handy. Have you tried the Acorn site? I heard rumour that they
had finally been released to the world at large...

Best Regards

Mark

Mark Cooke                             The views expressed above are mine
Systems Programmer                     and do not reflect in any way the
University Of Birmingham               current policy of my employers.