Re: gs/os

[mjmahon@aol.com (Michael J. Mahon)]

bill malcolm top-posted:

>They recompiled the source from the mac 2 >> IIGS.
>While the Apple II gave birth the to Lisa the Mac gave birth to the IIGS.

Hardly!

Mac QuickDraw was not compiled--it was written in 68000 assembly
language.  Therefore, it was only the inspiration for QuickDraw on the
IIgs--which, I'm pretty sure--is also a pure 65816 assembly code program.
On both the original Mac and the IIgs speed and compactness were
critical for their success, and assembly language was the only way
to meet the objectives.

The low-level nature of the Mac "toolbox" was a big issue in moving
the Mac off of the 68000 to PowerPC in the mid-90's.  Fortunately,
the PowerPC was so much faster than the 68040 that emulation
was an acceptable--if suboptimal--solution until the toolbox was
rewritten in a higher-level language.

>Ben wrote:
>
>> Hi, I just decided to play around with an apple IIgs emulator on my
>> powerbook and I have to say WOW.  Completely awesome how apple made
>> the GS interface pretty much identical to the mac interface (or vise
>> versa?).  Pretty sweet little computer, I wish I would have known
>> about it back in the day.  I'm curious though, does the GS/OS have any
>> kind of multifinder function in it?  Thanks.

-michael

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