Classic.app
Classic.app
- Subject: Classic.app
- From: Brent Gulanowski <email@hidden>
- Date: Sun, 27 Jan 2002 01:10:47 -0500
On Saturday, January 26, 2002, at 12:41 PM, Chilton Webb wrote:
Classic is not an emulator. So sayeth the gods:
http://developer.apple.com/techpubs/macosx/Essentials/SystemOverview/InstallIntegrate/
The_Classic_Application.html
I have not seen the source code to Classic.app, so I can't say for sure
whether it is emulating hardware or not. I assume there is some level of
protection in place to prevent Classic apps from being able to do
terrible things to the computer despite OSX running, so I would hope
they aren't providing direct access to the hardware. But as for whether
it is truly emulated or not, I couldn't tell you.
Also, I doubt anyone is intentionally going to *start* writing apps
targeted directly at classic instead of OSX, which is off-topic of the
original discussion, I believe.
-Chilton
They are wrong, because the terms simulator and emulator are now not
distinguished
except by specialists maybe -- as per my prev post, VPC is a simulator,
which Classic
certainly isn't but it is an emulator. We used a MP6809 emulator in
assembler class last
term, and it certainly ran the code native on a real 6809, but the
system itself was a
simplification which was not like the computers which a 6809 would have
been in.
We also used a simulator, a 100% Java program called ArcSim which
simulated the
actions of a fictional RISC chip.
(This is like the distinction between arguments and parameters, which
some of us care
about, but really doesn't affect how well your software runs :-)).
bg
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