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

[Blue Swirl]

> Sounds like you just want a bare-metal cross. There's absolutely no reason 
> to
> run the editor, compiler or assembler on the target machine.
> Many targets even have gdb simulators (MIPS, ARM and PPC do).

I disagree, it's much easier to use a native compiler than to build a cross 
compiler, even with crosstool. Especially crosstool's Sparc and Spac64 rows 
are disappointing. I don't think other compilers than GCC even support cross 
setups.

> IMHO there's nothing particularly good about sparc for teaching assembly
> (Whoever thought register windows were a good idea!).

Well, the register use is consistent, there are very few instructions and no 
instruction modifiers. I don't like ideas like ASIs, lack of FPU/IU 
connecivity and the delay slot.

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?

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