mirror of
https://github.com/reactos/reactos.git
synced 2024-11-02 04:37:32 +00:00
102 lines
2.9 KiB
C
102 lines
2.9 KiB
C
|
|
/*******************************************************************************
|
|
MIT License
|
|
-----------
|
|
|
|
Copyright (c) 2002-2019 Advanced Micro Devices, Inc.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this Software and associated documentaon files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
*******************************************************************************/
|
|
|
|
#include <fpieee.h>
|
|
#include <excpt.h>
|
|
#include <float.h>
|
|
#include <math.h>
|
|
#include <errno.h>
|
|
|
|
#include "libm_new.h"
|
|
|
|
// y = expf(x)
|
|
// y = exp(x)
|
|
|
|
// these codes and the ones in the related .asm files have to match
|
|
#define EXP_X_NAN 1
|
|
#define EXP_Y_ZERO 2
|
|
#define EXP_Y_INF 3
|
|
|
|
float _expf_special(float x, float y, U32 code)
|
|
{
|
|
switch(code)
|
|
{
|
|
case EXP_X_NAN:
|
|
{
|
|
UT64 ym; ym.u64 = 0; ym.f32[0] = y;
|
|
_handle_errorf("expf", _FpCodeExp, ym.u64, _DOMAIN, 0, EDOM, x, 0.0, 1);
|
|
}
|
|
break;
|
|
|
|
case EXP_Y_ZERO:
|
|
{
|
|
UT64 ym; ym.u64 = 0; ym.f32[0] = y;
|
|
_handle_errorf("expf", _FpCodeExp, ym.u64, _UNDERFLOW, AMD_F_INEXACT|AMD_F_UNDERFLOW, ERANGE, x, 0.0, 1);
|
|
}
|
|
break;
|
|
|
|
case EXP_Y_INF:
|
|
{
|
|
UT64 ym; ym.u64 = 0; ym.f32[0] = y;
|
|
_handle_errorf("expf", _FpCodeExp, ym.u64, _OVERFLOW, AMD_F_INEXACT|AMD_F_OVERFLOW, ERANGE, x, 0.0, 1);
|
|
|
|
}
|
|
break;
|
|
}
|
|
|
|
return y;
|
|
}
|
|
|
|
double _exp_special(double x, double y, U32 code)
|
|
{
|
|
switch(code)
|
|
{
|
|
case EXP_X_NAN:
|
|
{
|
|
UT64 ym; ym.f64 = y;
|
|
_handle_error("exp", _FpCodeExp, ym.u64, _DOMAIN, 0, EDOM, x, 0.0, 1);
|
|
}
|
|
break;
|
|
|
|
case EXP_Y_ZERO:
|
|
{
|
|
UT64 ym; ym.f64 = y;
|
|
_handle_error("exp", _FpCodeExp, ym.u64, _UNDERFLOW, AMD_F_INEXACT|AMD_F_UNDERFLOW, ERANGE, x, 0.0, 1);
|
|
}
|
|
break;
|
|
|
|
case EXP_Y_INF:
|
|
{
|
|
UT64 ym; ym.f64 = y;
|
|
_handle_error("exp", _FpCodeExp, ym.u64, _OVERFLOW, AMD_F_INEXACT|AMD_F_OVERFLOW, ERANGE, x, 0.0, 1);
|
|
}
|
|
break;
|
|
}
|
|
|
|
|
|
return y;
|
|
}
|