|Re: [hatari-devel] MMU support|
[ Thread Index | Date Index | More lists.tuxfamily.org/hatari-devel Archives ]
|I think the 68030 MMU emulation of Previous used in Hatari is the first full emulation of the 68030's MMU.|
Like Thomas said, it is still in experimental state, because there has only been little testing. Recently some bugs have been discovered and fixed. Hopefully there are no more bugs in the code.
But one thing is still missing, although not just MMU related: correct handling of the 68030's Special Status Word (SSW). It is needed for the exception stack frame for bus and address errors.
It needs to be set on all (not just MMU) bus error and page fault exceptions.
I do not yet understand all of the bits inside this SSW. I'd be happy if anyone could explain them to me. I'll try to implement it, as soon as i can understand it.
The bits are explained in the MC68030UM.pdf (68030 users manual), page 295 (pt. 8.2.1).
Am 24.11.2012 um 10:22 schrieb Thomas Huth:
|Mail converted by MHonArc 2.6.19+||http://listengine.tuxfamily.org/|