xmame  

Re: [Xmame] Model 1 Software Renderer

Cyril Zorin
Thu, 17 Aug 2006 19:16:25 -0700


The developer is more interested by machine/model1.c than
vidhrdw/model1.c at that point.  He welcomes patches though.

Some background questions:

a) How was vidhrdw/model1.c written? Was it more or less translated (by hand) from the original V60 assembler, or...?

b) How is the process of discovery done with machine/model1.c? By looking at assembler code, or by observing the game?

c) Is there any place where model1 operations/development is documented? Can we set up some sort of page where this is outlined, so it's clearer and bugs/features/optimizations can be taken care of quicker? I know some people might find writing documentation pretty boring, but I think it pays off in the end.

d) Maybe I didn't search hard enough, but is there any decent document regarding the V60 instruction set + peculiarities? I know that there is a list of opcodes in cpu/v60/optable.c, but I was hoping for some documentation about the instructions themselves that would outline their various nuances, as well as overall processor technical information.

e) Is there a disassembler for V60 assembler code? I didn't see one in cpu/v60. Perhaps there's a third party one?

Thanks!




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