Subject: Re: pccons.c reads write-only 6845 registers
To: None <, kwhite@csi.UOttawa.CA>
From: Theo Deraadt <>
List: current-users
Date: 03/08/1994 16:01:00
>If FAT_CURSOR is not defined, pccons.c sets cursor_shape by reading the
>cursor start and end raster registers in the 6845.  This won't work if it
>really *is* a 6845 since these registers are write-only.  So, on my humble
>hercules card, the cursor ends up as an overline -- a little umm
>Solution: define FAT_CURSOR for cards that actually use a 6845.  Or add a
>CURSOR_SHAPE feeping creature...

Exactly. On some CGA, Hercules, or MDA cards you can expect that the
cursor might come up blank too, so you guys know.