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From: root@bu-cs.UUCP (Barry Shein)
Newsgroups: net.micro.att
Subject: Need help with bitmap operations on the 7300
Message-ID: <593@bu-cs.UUCP>
Date: Sun, 18-Aug-85 01:27:56 EDT
Article-I.D.: bu-cs.593
Posted: Sun Aug 18 01:27:56 1985
Date-Received: Tue, 20-Aug-85 06:49:54 EDT
Organization: Boston Univ Comp. Sci.
Lines: 22

This one is taking too much time, does anyone have one working piece
of C code that just puts an array of bits up on the screen. Here's
where I stand now:

	ioctl(w,WIOCRASTOP,&urdata)

causes my machine to panic and re-boot (developers: sources on request!)

	wrastop()

seems to always return -1 with errno == 0

The only way I can see to approach it with tam is through wicon() but
I get a -1 and perror comes up with 'Bad address'.

Rather than trying to send all my attempts maybe someone could just post
a little example (preferably using either the ioctl or wrastop()).

Thanks in advance. This is getting frustrating, especially the panic-reboots,
kinda slows down the debug cycles.

	-Barry Shein, Boston University