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Re: [Qemu-devel] [PATCH v4 3/4] softfloat: use floatx80_infinity in soft
From: |
Richard Henderson |
Subject: |
Re: [Qemu-devel] [PATCH v4 3/4] softfloat: use floatx80_infinity in softfloat |
Date: |
Sat, 24 Feb 2018 15:24:59 -0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 |
On 02/24/2018 12:18 PM, Laurent Vivier wrote:
> Since f3218a8 ("softfloat: add floatx80 constants")
> floatx80_infinity is defined but never used.
>
> This patch updates floatx80 functions to use
> this definition.
>
> This allows to define a different default Infinity
> value on m68k: the m68k FPU defines infinity with
> all bits set to zero in the mantissa.
>
> Signed-off-by: Laurent Vivier <address@hidden>
> ---
> CC: Aurelien Jarno <address@hidden>
> v4: fix floatx80_to_int64() to check for NaN, not for infinity
> fix floatx80_is_infinity() to ignore mantissa's MSB
>
> fpu/softfloat-specialize.h | 14 ++++++++++++++
> fpu/softfloat.c | 39 +++++++++++++++++++++++++--------------
> include/fpu/softfloat.h | 13 +++++++++++--
> 3 files changed, 50 insertions(+), 16 deletions(-)
Reviewed-by: Richard Henderson <address@hidden>
r~
- [Qemu-devel] [PATCH v4 0/4] target/m68k: implement 680x0 FPU (part 3), Laurent Vivier, 2018/02/24
- [Qemu-devel] [PATCH v4 4/4] target/m68k: add fscale, fgetman and fgetexp, Laurent Vivier, 2018/02/24
- [Qemu-devel] [PATCH v4 2/4] target/m68k: add fmod/frem, Laurent Vivier, 2018/02/24
- [Qemu-devel] [PATCH v4 3/4] softfloat: use floatx80_infinity in softfloat, Laurent Vivier, 2018/02/24
- Re: [Qemu-devel] [PATCH v4 3/4] softfloat: use floatx80_infinity in softfloat,
Richard Henderson <=
- [Qemu-devel] [PATCH v4 1/4] softfloat: export some functions, Laurent Vivier, 2018/02/24