Instruction trace?
Moderators: Cat_7, Ronald P. Regensburg
Instruction trace?
I'm interested in how the old Mac ROMs worked. I can poke around at the disassembly, but often I have to guess at which branch is taken. I'm thus looking for an emulator that lets you single-step through the Mac ROM. I think it should be possible to load up Macsbug in Basilisk II, and maybe somehow tell it to run the ROM boot code again, but I'm wondering if there's an easier way. Thanks in advance
Re: Instruction trace?
Hi,
Perhaps you should take a look at these sources:
https://github.com/dingusdev/dingusppc/wiki (to enter their discord channel)
https://github.com/elliotnunn/cdg5
Best,
Cat_7
Perhaps you should take a look at these sources:
https://github.com/dingusdev/dingusppc/wiki (to enter their discord channel)
https://github.com/elliotnunn/cdg5
Best,
Cat_7
Re: Instruction trace?
Ah, those look interesting, thanks! I'm thinking about 68k ROMs also through. I think MAME might have a debugger, so looking into that...
EDIT: MAME debugger seems to do exactly what I want.
EDIT: MAME debugger seems to do exactly what I want.
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Re: Instruction trace?
BII also has a built-in debugger that should do what you want; you just have to compile it with cxmon (the monitor/debugger) enabled.