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Discussion Groups | FPGA-CPU | simple kbbios/vbios for XSOC

This list is for discussion of the design and implementation of field-programmable gate array based processors and integrated systems. It is also for discussion and community support of the XSOC Project (see http://www.fpgacpu.org/xsoc).

simple kbbios/vbios for XSOC - Royce Liao - Jun 14 0:55:00 2001

I posted a *preliminary* version (as in incomplete) of
an XSOC-hosted keyboard/video BIOS. I've been working on this in
my spare time for the past month.

The keyboard BIOS reads scancodes from the XS40's PS/2 port (keyboard
only, not mouse.) Scancodes need to be converted to ASCII chars,
which is what the 'kbbios' is for.

The video BIOS is a minimal set of functions for drawing alphanumeric
characters to a virtual screen. The video BIOS emulates a text
display, and has functions for scrolling, writing characters, and
setting the screen width and height.

The package contains a demo XSOC program to show simultaneously show
the new keyboard and text stuff. It doesn't do much - just echos
keypresses on the VGA output.

As distributed, the included software library can't be recompiled.
You'll need a 'special' lcc-xr16 for that, which I will release later.
(It's nothing special, just some hacks and bugfixes.)

http://members.tripod.com/~liaor



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