Re: [Qemu-devel] [PATCH] Add MIPS ELF loader

[Alexander Voropay]

"Thiemo Seufer" <address@hidden> wrote:

> > >You could find my qemu.log there:
> > >http://www.nwpi.ru/~alec/mips/qemu_log.txt
> > >It goes into infinity exception loop. 
> >
> > I'm not quite sure why but you're getting a RI exception on the 
> > address 0xbfc00008 wich is the "move k0, zero" in the delay slot. I 
> > don't see a problem in the code, but have you tried this sequence?
> >
> >   move k0, zero
> >   j    0xbfc00400
> >   nop
>
> Is the move implemented as addiu or as daddiu? The latter would RI.

Oh! It was daddu (gcc -mips3) opcode.

Thank you!

Can someone add a path to make a log more readable (exception cause decode).

The disassembler should be improved too, to mark a 64-bit opcodes as invalid
for MIPS32...

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-=AV=-