Re: [9fans] /sys/src/^(9 boot)^/pc/memory.c

["Russ Cox" <rsc@plan9.bell-labs.com>]

> Isn't always there the possibility to add a hwcursor also?. I think hw
> cursors are directly supported by VESA standards, but I think one
> thing is independant from another. Isn't it possible to use VESA for
> mode switching or whatever and reduce the code you have to write for
> the card to write the hwcursor support?.

VESA actually says nothing about hardware cursors
last I checked; if you're going the VESA route you
really want to reduce the necessary code to zero.
There's an important qualitative difference
between zero and non-zero.  Mainly, people who
don't write drivers are still up to the task of
writing zero lines of code.

> Another question. What is the software cursor really necessary for?
> (other than in vmware). Do there really exist modern cards
> which don't support hardware cursor?.

Full-screen VMware is another thing I'd forgotten
about.  But yes, most modern cards have hardware
cursors.

Russ