Re: A89: How does a 68000 program get into supervisor mode ?

To: assembly-89@lists.ticalc.org
Subject: Re: A89: How does a 68000 program get into supervisor mode ?
From: "Brad O'Dell" <brodell@gte.net>
Date: Sun, 22 Aug 1999 18:50:43 -0700
References: <b598f4b8.24f1e20d@aol.com>
Reply-To: assembly-89@lists.ticalc.org

Use trap #1 to store the contens of d0.w to the SR without getting a privilege
violation.  The old SR contens are then placed into d0.l.

S43R80@aol.com wrote:

> > How would I be able to switch into supervisor mode on a 68000 for a program
> > that needs it ?
> >
>
> Don't you get more access to different instructions (supervisor mode) by just
> setting the supervisor bit (bit 13) of the SR register?
>
> -Steven

References:

Re: A89: How does a 68000 program get into supervisor mode ?

From: S43R80@aol.com

Prev: A89: Tilemap optimizations
Next: Re: A89: Re: This sprite code in C
Index(es):
- Main
- Thread