Completely unrelated questions, but:
(1) if I disable interrupts temporarily so that I can use the stack
pointer for pixel plotting, is there any reliable way to spot
afterwards if I've missed an end-of-display interrupt? I'm vaguely
aware that there's a current scanline hardware counter
Thomas wrote:
(1) I'm vaguely aware that there's a current scanline hardware
counter somewhere - does that count actual PAL lines or only lines
with pixels on them?
HPEN port (01f8) will give the current scanline - for scanlines in the
display area only (0-191 iirc)
And how long does the
Hello all
Have you seen that a BBC drama about 80's computing is on tonight?
A bit before Sam's time but only just.
http://www.bbc.co.uk/programmes/b00n5b92
Thanks
Dicky
Excellent, that was most enjoyable - thanks for the heads up! The old
days eh... :-)
Regards,
Stefan
From: owner-sam-us...@nvg.ntnu.no [mailto:owner-sam-us...@nvg.ntnu.no]
On Behalf Of Dicky
Sent: Thursday, October 08, 2009 19:05
To:
