Re: [Qemu-devel] Add CMP2 instruction

[Guo, Lei]

Hi Laurent
        This pagraph exactly is a cut&paste of the Motorola "Programmer's 
reference manual".
I didn't mean to add it as commits to the patch.I just want to introduce this 
instruction to the reviewer. 
So don't worry about the copyrights.

Best Regards
Guo Lei

> 
> 
> 
> > Le 7 novembre 2014 à 11:14, "Guo, Lei" <address@hidden> a écrit :
> >
> >
> >  This patch aims to add CMP2 instruction for m68k family.
> >
> >
> >
> >  Description: Compares the value in Rn to each bound. The effective 
> > address contains the
> >
> >  bounds pair: upper bound following the lower bound. For signed 
> > comparisons, the
> >
> >  arithmetically smaller value should be used as the lower bound. For 
> > unsigned
> >
> >  comparisons, the logically smaller value should be the lower bound.
> >
> >  The size of the data and the bounds can be specified as byte, word, or 
> > long.
> > If Rn is a
> >
> >  data register and the operation size is byte or word, only the 
> > appropriate low-order part
> >
> >  of Rn is checked. If Rn is an address register and the operation 
> > size is byte or word,
> >
> >  the bounds operands are sign-extended to 32 bits, and the resultant 
> > operands are
> >
> >  compared to the full 32 bits of An.
> >
> >  If the upper bound equals the lower bound, the valid range is a single 
> > value.
> >
> 
> Moreover, this seems a cut&paste of the Motorola "Programmer's 
> reference manual".
> It should be copyrighted : have we the right to copy this part in a 
> commit message ?
> 
> Regards,
> Laurent