Re: [Qemu-devel] PowerPC CPU tester

[Gwenole Beauchesne]

Hi,

> Would it be possible to get a readable description of the problems
> encountered ?

Hmm, wait, I read XER the wrong way. It seems you used the normal 
numbering way with 0 being LSB. I have uploaded a new version of 
test-powerpc.cpp. Sorry, for the inconvience. Only "rlwimi" were wrong 
indeed.
30698 errors out of 689408 tests

> > Testing neg
> > invalid bits: 00002800 for opcode: 1f -08 - 03 (0x7c6428d0) 
> > (0x80031890)
> According to PPC specification, bits 16 to 20 (in IBM/Motorola 
> notation) have
> always to be zero, has neg have no rB operand.

Indeed, copy-paste propagation. ;-) Thanks, for noticing.

> > +#ifdef DO_EXEC_RETURN
> > +               if (ctx.opcode == 0x18000000) {
> > +                 gen_op_raise_exception(EXCP_HLT);
> > +                 break;
> > +               }
> > +#endif
> >          /* Is opcode *REALLY* valid ? */
> >          if ((ctx.opcode & handler->inval) != 0) {
> >              if (loglevel > 0) {
> What does this mean ?

That's for the tester, it's simply an extra opcode to get out of 
emulation code, if you know a better way...

Bye,
Gwenole.