Re: [B2-devel] Re: MacOS X port screenshot

[Christian B. <cb...@st...>]

Hi!

On Thu, Dec 07, 2000 at 12:53:22PM +1100, ni...@in... wrote:
> [Apple's DR Emulator]
> * I think we would need to be emulating a PowerMac before that code
>   could be used. (I have seen the problems in calling Mac ROM code
>   from Unix [MRG in NetBSD/Mac68k], and it isn't pretty)

The BeOS/ppc port can use the 68k emulation from a Mac ROM (classic image
file or NewWorld-style). The code for this is in the powerrom_cpu directory.
Only the interpretative emulation is used, however, because I had problems
with the interrupts in the DR emulator, and the DR emulator never gets
activated (MacOS on PPC machines does this at some point during bootup).

> 	My current hack for this is to give Basilisk a bitmap pointer
> that is offset by 1, so that it draws into the correct channels.
> Incredibly, it works (I thought I would have word alignment problems).

A similar problem on the Amiga with ShapeShifter was solved in the same way...

Bye,
Christian

-- 
  / Coding on PowerPC and proud of it
\/ http://www.uni-mainz.de/~bauec002/