Debugger Alpha

I thought I just make a quick post to show the GUI debugger I've been working on the last week or so. It's incomplete but working well enough to put a grin on my face while stepping through code.

A quick screenshot:



The disassembly syncs nicely with the Program Counter as you step through and registers are all editable in place too.
Still to do are breakpoints and the memory views alongside the registers.
Bananas all round to those who noticed that I've borrowed the layout from Devpac's MonAm debugger ;)

Hack n Slash

I'm still plodding on with writing the unit tests.  The end is in sight as I've nearly finished the instructions and I think I should be able to output tests a bit quicker when I haven't got to keep calculating opcodes by hand.

Unfortunately, last week I went an bought a copy of Fable II.  What a time sink that has been, and I would've finished the tests by now if it wasn't for that.  Cracking good game though.

Once the tests are complete the next step is to write a monitor/debugger application to wrap the CPU up in.  I want to be able to step through the emulated code and set breakpoints etc.  This will no doubt involve quite a bit of effort but is going to be crucial in keeping me sane as this project progresses.  Once I'm happy that I can accurately emulate the CPU and monitor the code running on it, I can start thinking about turning it into an Amiga.

Of course, I'm making a big assumption that the performance of my code is going to be adequate for the job, but that's a whole new kettle of fish that we'll have to wait for.  I'm just concentrating on developing a clean and robust model for now.