heya--

> Craig tried, and failed, to get an InterpreterSimulator going for
> me...is anyone running this on a regular basis or can point to a
> known good version? I'd really like to just *see* this.

	Of course I couldn't just let this one go. :)

	And, of course, I got it running after about another fifteen minutes at
home. :)  It seems that the last system where this worked is 2.7
(January 2000). Here's a demo script:

-	Download 2.7 (from
http://wuarchive.wustl.edu/languages/smalltalk/Smalltalk/Squeak/2.7
...much faster :).
-	Fire it up, go to full-screen mode, open a small workspace.
-	In the workspace, type

	(InterpreterSimulatorLSB new openOn: 'source.image') test

	If you're on a big-endian host (e.g., Macintosh, as opposed to, e.g.,
x86) use InterpreterSimulator instead of InterpreterSimulatorLSB.
-	Move the workspace off to the left side of the screen.
-	Make a snapshot under a groovy name like "stimulator".
-	Change Squeak's desktop color to something which contrasts with the
current color.
-	Turn off full-screen mode, and resize the Squeak's host window so that
it's about a quarter of the full-screen size.
-	Make another snapshot under the name "source".
-	Exit Squeak.
-	Start the stimulator image, and evaluate the workspace expression.
-	After about a minute (on a 500 MHz PIII), the source image will come
up in simulation in the lower right corner of the display.
-	Try to keep from fainting with delight. :)

	In 2.8, I got flack from the LargeIntegerPlugin; apparently external
calls don't work under simulation yet. My run died in
InterpreterSimulatorLSB(Interpreter)>>classNameOf:Is:, when
Interpreter>>arrayValueOf: answered self, instead of the class name we
were trying to confirm. And to get that far I had to fix
InterpreterSimulator>>ioLoadExternalFunction:OfLength:FromModule:OfLength:
(the block that populates functionString was trying to write to
pluginString again). I moved on/back to 2.7 at that point. I assume that
debugging the simulator is even hairier in post-2.8 releases. :)

	The last time I ran the simulator was in Summer 1999, when I was
debugging a scanned-sound-synthesis plugin I wrote. It was very handy!


	enjoy,

-C

--
Craig Latta
improvisational musical informaticist
craig.latta at netjam.org
www.netjam.org
crl at watson.ibm.com
Smalltalkers do: [:it | All with: Class, (And love: it)]