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Re: [Qemu-devel] qemu-system-sparc question?

From: K. Richard Pixley
Subject: Re: [Qemu-devel] qemu-system-sparc question?
Date: Wed, 11 Oct 2006 10:32:21 -0700
User-agent: Thunderbird (X11/20060921)

Blue Swirl wrote:
BTW, we could easily design and implement an ideal CPU just for Qemu purposes. It could be unlike any existing hardware, for example with zero or thousands of registers. The problem would be making a compiler for the CPU, also porting some OS to it. Any GCC and Linux guru volunteers? CS research projects?
This idea has been around for a long time. When I was in school, one of our projects was to build a processor for such an architecture. The idea has been kicked around the gnu development toolchain community for some time as well.

Gcc is sexy. You shouldn't have any trouble finding a student or another volunteer who's interested in implementing a simple, relatively orthogonal instruction set.

Gas is harder.  It's not so sexy.  Nor is ld, nor gdb.

Porting linux at that point is pretty much just a matter of determining cpu start and load addresses.

Note: mmu management would also be a modest task, either to implement or to circumvent.


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