Hi!
On Fri, Jun 17, 2022 at 04:19:37PM +0800, HAO CHEN GUI wrote:
> On 16/6/2022 下午 7:24, Segher Boessenkool wrote:
> > You shouldn't need anything like this, bcdinvalid will work just fine if
> > written as bcdadd_ov (with vector of 0 as the second op)?
>
> The vector of 0 is not equal to BCD
Hi,
On 16/6/2022 下午 7:24, Segher Boessenkool wrote:
> There is no normal way to get at bit 3 of a CR field. We can use some
> unspec though, which is total cheating but it does work, and it is
> safe, albeit sometimes suboptimal.
Thanks so much for your advice. I will use an unspec for setting
Hi!
On Thu, Jun 16, 2022 at 02:36:53PM +0800, HAO CHEN GUI wrote:
> This patch uses CC instead of CCFP for all BCD operations. Thus, infinite
> math flag has no impact on BCD operations. To support BCD overflow and
> invalid coding, ordered and unordered are added into CC mode.
This is wrong.
Hi,
This patch uses CC instead of CCFP for all BCD operations. Thus, infinite
math flag has no impact on BCD operations. To support BCD overflow and
invalid coding, ordered and unordered are added into CC mode. With CC,
"ge" and "le" are converted to reverse comparison. So the invalid coding
