Re: [Qemu-devel] Add CMP2 instruction

[Laurent Vivier]

> 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