Subject: Re: installing 1.0
To: None <amiga-dev@sun-lamp.cs.berkeley.edu>
From: David Jones <dej@eecg.toronto.edu>
List: amiga-dev
Date: 08/11/1994 20:43:34
>   black bar down the middle of the screen at times.  I thought this
> was already fixed.

No.  This is a simple problem: when you turn off sprite DMA, you must also
zero out the data register.  In the meantime:

#include <unistd.h>
#include <fcntl.h>

char zero[4] = { 0,0,0,0 };

main()
{
int fd;

	fd = open("/dev/mem", O_RDWR);
	lseek(fd, 0xDFF144, 0);
	write(fd, zero, 4);
	close(fd);
}

This must be compiled setuid root (or otherwise to have access to
/dev/mem).

This problem was present from day one, was fixed (by me) and then crept
in again when chopps cut over to views.

-- 
David Jones, M.A.Sc student, Electronics Group (VLSI), University of Toronto
           email: dej@eecg.toronto.edu, finger for PGP public key
        finger dej@torfree.net for latest Toronto Free-Net information
          Click me!

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