Date   : Tue, 06 Dec 1994 11:50:48 +0000
From   : lamcw <lamcw@...>
Subject: Re: My emulator (status)

gilbertd@... Tue Dec  6 11:32 GMT 1994 wrote:

;All graphics modes are now emulated (except the
;cursor) - including wierd ones like reprogramming to do the mode 8 
;in the AUG - this is catered for by a virtually full emulation of the 6845.
;This also supports changing palette/graphics mode part way down the screen.
;It works well enough to run Wordwise/exmon etc. and any graphics things
;I've tried.

nice work. how do elite and revs fare?


;The one main problem is speed - or the lack of it!  If I switch off screen
;updates then my Pentium-90 manages about the same speed as a beeb - with
;screen updates its about a 3rd of that.

my emulator runs upto 60% of a real beeb, worst case maybe 30 or so %.
it's doing about 4 or so frames per real second. (my machine is a LC475)


About that CHAIN problem. I think I need to use BRK to type my error
messages. at the mo, i'm printing the message out using OSASCI and then
returning (RTS) which is probably why it goes ahead and executes a RUN.


chris lam.