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.
--rich
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