Date   : Thu, 08 Sep 1994 15:22:23 WET DST
From   : Bonfield James <jkb@...>
Subject: Re: Emulator Under Progress - The List

>Emulator:  Beeb
>Author(s): James Bonfield (jkb@...) and 
>           Steve Youell (8271 emulation) (wgc-e@...)
>Platform:  Unix, with or without X11
>Language:  C
>Implementation (core emulator): (not terribly well documented...)
> 
>No different than in January really :-(
>I HATE THAT FROGGING KEYBOARD!!!!! For some reason, my emulator _insists_
>on not setting the interrupt enable for CA2 (bit 0 of FE4E). It's not my
>6522 code that's dodgy, the instruction to set it never appears! [JB]

Update on the above:

Currently has good 6502 and reasonable 6522 support. The keyboard is handled
correctly by generating the necessary 6522 interrupts and letting the
"hardware" do the work. Graphics support is dodgy. Sideways RAM and ROMS work
fine too. I have minimal 6845 support, but this currently does work for modes
0, 1 and 2. It even provides some semblance of hardware scrolling (but only in
the Y direction). I'll rewrite the 6845 again from scratch though as I've got
better ideas now which should allow for split screen modes.

       James

PS. I still hate the keyboard - I'm holding a grudge in that area.