yuzu/unicorn
1
0
Fork 0
mirror of https://github.com/yuzu-emu/unicorn.git synced 2024-12-23 13:45:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

softfloat: add float{32,64}_is_{de,}normal

Browse source 
This paves the way for upcoming work.

Backports commit 588e6dfd8774e6da56b6995611655fbe59ff564a from qemu
This commit is contained in:
Emilio G. Cota 2018-12-19 09:23:28 -05:00 committed by Lioncash
parent 3d0359c0f5
commit 3a8f7d6d84
No known key found for this signature in database
GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 20 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
qemu/include/fpu/softfloat.h
View file

@ -469,6 +469,16 @@ static inline int float32_is_zero_or_denormal(float32 a)
return (float32_val(a) & 0x7f800000) == 0;
}
static inline bool float32_is_normal(float32 a)
{
return ((float32_val(a) + 0x00800000) & 0x7fffffff) >= 0x01000000;
}
static inline bool float32_is_denormal(float32 a)
{
return float32_is_zero_or_denormal(a) && !float32_is_zero(a);
}
static inline float32 float32_set_sign(float32 a, int sign)
{
return make_float32((float32_val(a) & 0x7fffffff) | (sign << 31));
@ -611,6 +621,16 @@ static inline int float64_is_zero_or_denormal(float64 a)
return (float64_val(a) & 0x7ff0000000000000LL) == 0;
}
static inline bool float64_is_normal(float64 a)
{
return ((float64_val(a) + (1ULL << 52)) & -1ULL >> 1) >= 1ULL << 53;
}
static inline bool float64_is_denormal(float64 a)
{
return float64_is_zero_or_denormal(a) && !float64_is_zero(a);
}
static inline float64 float64_set_sign(float64 a, int sign)
{
return make_float64((float64_val(a) & 0x7fffffffffffffffULL)