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" <guol-f...@cn.fujitsu.com> 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
