[GEM Development] Another video driver
Shane Martin Coughlan
shane at shaneland.co.uk
Tue Nov 13 03:57:03 PST 2007
Hi John
John Elliott wrote:
> I've written another video driver - this time, for the Apricot PC/Xi
> computers, at 800x400 monochrome resolution. It can be downloaded from the
> usual place: http://www.seasip.info/Gem/drivers.html
> What made this one tricky was:
> i) The PC/Xi graphical screen is laid out as 50x50 cells, each 16x8 pixels.
> ii) The BIOS and hardware are decidedly not PC-compatible.
> iii) ... and GEM rather expects PC-compatible scancodes.
> iv) In fact, there are various bits of the Xi BIOS that are frankly pants.
> But if all goes well, the only problem you'll notice (assuming you have
> suitable hardware) is that there's no key repeat.
Has anyone tested this for you yet? I confess that I was not able. I
have nothing even remotely like the correct hardware.
I'm curious about point iv. What bits of the Xi bios are pants, and why so?
Shane
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