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I am, btw, definitely interested in this experiment, if anyone has tips on where in the code this rom size decision gets made I could try it out.

While I think it might be possible to directly hook ghidra to QEMU, I'm definitely not doing anything so sophisticated. It's more of a manual, side by side situation. I have the ROM loaded in ghidra, my a traps hack, ghidra's automatic disasembly, labels loaded from the ROM maps, and...

Nice, I actually wrote a script to load the ROM map files into Ghidra, same idea. Thanks for all your work on QEMU!

I've used indium foil instead of paste (on a 68040 and a modern power9 chip), but I think they really need high pressure to work well (much moreso than paste). I have a heatsink that kinda screws in to push down on the 68040 to ensure good contact, but it's an old aftermarket part, so not...

Somewhat recently, QEMU support has been developed for the Quadra 800. This is great for a few reasons, but one that I think is uniquely useful is the debugging tools you can use with it. I was going to do a nice full tutorial, but sadly been too busy with work and other matters, so I hope...

Interesting find. Somewhat tangential, I've been experimenting with using QEMU for debugging ROM changes. You can hook in with gdb and a lot of other powerful functionality. I believe the Q800 emulation in QEMU is good enough to run A/UX. Have you tried it at all? If not, I could put up...

The 660/840 ROM won't boot a Q650 (source: I tried it).

Very nice investigation!

For modern development, it's usually pretty easy to find code examples. Stuff like stack overflow, online documentation, and github code search make most practical information very easy to find. In the classic Mac era, there were a few sources of code I can think of: * Apple SDKs and...

mbedtls can be built with retro68, I use it for ssheven. A 68030 barely has the horsepower to do SSH without timing out. Web browsing would be pretty miserable. The problem is that you can't really bolt this into any 90s applications, even ones with the source available would be a lot of...

I tried running this ROM in my machine, which is basically a Quadra 650, but it set up the memory controller exactly the same as the stock ROM. I believe it may be looking for a different gestalt machine ID; mine is set up to report being a 36. The prototype machine may be the elusive gestalt...

oh, whoops, totally forgot, sorry!

I have a wacom pen partner ct-0405-a that I use with my Mac SE. Make sure to get an ADB one (can tell by the cable and the model number ends in A, not R). The artpad models and the UD models like UD-0608-A should also work.

oh, btw, I wrote a little program to inspect the djmemc (memory controller) settings, at some point hopefully I'll have time to burn this ROM and test it out on my machine, if anyone else wants to try, I've attached it (as mac binary) there's some discussion related to this tool over in the...

thanks for sharing this! from an extremely brief look, it seems like: some change to the CPU detection code, something in the djmemc setup, some other stuff I don't have mapped out, and the date is changed 12th of november, 1993 the changes are pretty small, like 500 bytes difference, mostly...

I'm always happy to see people using ssheven! It's been a very busy year for me but I swear I think about working on ssheven all the time 😩 The big things on the agenda are (still) improved handling of network errors, file transfer, various bug fixes, and some code cleanup. There are plenty...

For those unfamiliar with them, a-traps are a clever(?) trick used by the classic mac OS: it uses illegal instructions as a system call interface. When an illegal instruction gets hit, a lookup table is examined to figure out what code to run. This enables lots of shenanigans since the lookup...

somewhat off topic, but I have an easy little hack for very basic A trap support for ghidra, I can make a thread here later if there's interest nice work with this vnc server!

Thanks for sharing your code for this! (even using retro68 to build it! I really like to be able to use modern tools for mac dev). Fantastic! I'm very interested in hearing about your development process for the DeclROM, could you discuss that a bit?

There is an apple PDF floating around (don't have it at hand) that specifies exactly which apple modules are supported in which macs of this era.