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From: | Richard Henderson |
Subject: | Re: [Qemu-arm] [PATCH v3 04/31] target/arm/cpu.h: add additional float_status flags |
Date: | Fri, 23 Feb 2018 15:51:43 -0800 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 |
On 02/23/2018 07:36 AM, Alex Bennée wrote: > Half-precision flush to zero behaviour is controlled by a separate > FZ16 bit in the FPCR. To handle this we pass a pointer to > fp_status_fp16 when working on half-precision operations. The value of > the presented FPCR is calculated from an amalgam of the two when read. > > Signed-off-by: Alex Bennée <address@hidden> > > --- > v3 > - add FPCR_[FZ/FZ16/DN] defines to cpu.h and use > - only propagate flag status to fp_status as they are ored later > - ensure dnan and round mode propagated to fp_status_fp16 > --- Reviewed-by: Richard Henderson <address@hidden> r~
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