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korenkonder
2022-07-06 14:13:11 +03:00
parent 8a0f0d4aa3
commit 935d7ffeb6
126 changed files with 6163 additions and 4157 deletions
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src/KKdLib/half_t.cpp
+15
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@@ -4,6 +4,9 @@
*/
#include "half_t.hpp"
#include <immintrin.h>
extern bool f16c;
inline half_t load_reverse_endianness_half_t(void* ptr) {
return (half_t)_byteswap_ushort(*(uint16_t*)ptr);
@@ -18,6 +21,9 @@ inline half_t reverse_endianness_half_t(half_t value) {
}
float_t half_to_float(half_t h) {
if (f16c)
return _mm_cvtss_f32( _mm_cvtph_ps(_mm_cvtsi32_si128((uint16_t)h)));
int32_t si32;
uint16_t sign = (h >> 15) & 0x001;
uint16_t exponent = (h >> 10) & 0x01F;
@@ -33,6 +39,9 @@ float_t half_to_float(half_t h) {
}
half_t float_to_half(float_t val) {
if (f16c)
return (half_t)_mm_cvtsi128_si32(_mm_cvtps_ph(_mm_set_ss(val), _MM_FROUND_CUR_DIRECTION));
int32_t si32 = *(int32_t*)&val;
if (si32 == 0x00000000)
return FLOAT16_POSITIVE_ZERO;
@@ -56,6 +65,9 @@ half_t float_to_half(float_t val) {
}
double_t half_to_double(half_t h) {
if (f16c)
return _mm_cvtss_f32(_mm_cvtph_ps(_mm_cvtsi32_si128((uint16_t)h)));
int64_t si64;
uint16_t sign = (h >> 15) & 0x001;
uint16_t exponent = (h >> 10) & 0x01F;
@@ -71,6 +83,9 @@ double_t half_to_double(half_t h) {
}
half_t double_to_half(double_t val) {
if (f16c)
return (half_t)_mm_cvtsi128_si32(_mm_cvtps_ph(_mm_cvtpd_ps(_mm_set_sd(val)), _MM_FROUND_CUR_DIRECTION));
int64_t si64 = *(int64_t*)&val;
if (si64 == 0x0000000000000000)
return FLOAT16_POSITIVE_ZERO;