Re: [Qemu-devel] [PATCH v12 09/14] target-mips: Add ASE DSP bit/manipulation instructions

[Jia Liu]

Hi Petar,

On Mon, Oct 29, 2012 at 9:40 PM, Jovanovic, Petar <address@hidden> wrote:
> Hi Jia,
>
>> imm = (int16_t)(imm << 6) >> 6;
>
> result of a bitwise shift of a signed type and a negative vlaue is
> implementation-defined, so you can not rely on that.
>

I think it will take a 10bits signed value sign extend into 16bits
signed value, and I've tested it with negative values, it working
well.

> Regards,
> Petar

Regards,
Jia.