>For a little experiment with a old Mac LC 575 I wish to know if 
>someone do something with Squeak --> 68000 Assembler code.
>I have a technical note TN 1154: Debugging Java Code With MacsBug 
>from Apple and wish do something with Squeak.
>Any ideas ?
>Edgar J. De Cleene

Well that is an interesting question. Now if you had Jasik's The 
Debugger and all the source code you might find this useful.

However first I should point out that the last offical VM build as a 
FAT application (68K and PPC) was 3.0.18. Yet this in the optimized 
form is somewhat undebuggable because I have stripped out the 
macsbugs symbol names, thus you can't reliably tell what routine you 
are in from a stack trace. If you really really need this I can send 
you a VM that has macsbugs symbols on.

I have built a 3.0.22 macintosh VM for 68k so it is feasible, but I 
don't think we've shipped one, I'm not sure the source for 3.0.22 
which has extra serial port support (16 versus 4) made it into 
production circulation. Mind sourceforge has a modified copy in the 
sqMacSerialPort.c source file.

So

Macbugs can tell you if your heap is corrupt (unlikely), or if you 
are running out of free space on the VM C heap and need to adjust it, 
so I'm not sure what else you are looking for.

If you want to build a VM and do source C code debugging you must 
either get your hands on a copy of codewarrior, or try a version of 
MPW. I can send you a copy of the source tree just to make things 
easier.



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John M. McIntosh <johnmci at smalltalkconsulting.com> 1-800-477-2659
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