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msvcr120: Add _except1 implementation. 

Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Piotr Caban 2017-02-17 15:54:25 +01:00 committed by Alexandre Julliard
parent e37612329f
commit 10200af741
5 changed files with 96 additions and 4 deletions
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2
dlls/api-ms-win-crt-math-l1-1-0/api-ms-win-crt-math-l1-1-0.spec
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@ -62,7 +62,7 @@
@ stub _dsin
@ cdecl _dtest(ptr) ucrtbase._dtest
@ stub _dunscale
@ stub _except1
@ cdecl _except1(long long double double long ptr) ucrtbase._except1
@ stub _fd_int
@ cdecl _fdclass(float) ucrtbase._fdclass
@ stub _fdexp

2
dlls/msvcr120/msvcr120.spec
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@ -1124,7 +1124,7 @@
@ extern _environ MSVCRT__environ
@ cdecl _eof(long) MSVCRT__eof
@ cdecl _errno() MSVCRT__errno
@ stub _except1
@ cdecl _except1(long long double double long ptr)
@ cdecl -arch=i386 _except_handler2(ptr ptr ptr ptr)
@ cdecl -arch=i386 _except_handler3(ptr ptr ptr ptr)
@ cdecl -arch=i386 _except_handler4_common(ptr ptr ptr ptr ptr ptr)

2
dlls/msvcr120_app/msvcr120_app.spec
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@ -1060,7 +1060,7 @@
@ extern _environ msvcr120._environ
@ cdecl _eof(long) msvcr120._eof
@ cdecl _errno() msvcr120._errno
@ stub _except1
@ cdecl _except1(long long double double long ptr) msvcr120._except1
@ cdecl -arch=i386 _except_handler2(ptr ptr ptr ptr) msvcr120._except_handler2
@ cdecl -arch=i386 _except_handler3(ptr ptr ptr ptr) msvcr120._except_handler3
@ cdecl -arch=i386 _except_handler4_common(ptr ptr ptr ptr ptr ptr) msvcr120._except_handler4_common

92
dlls/msvcrt/math.c
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@ -2986,3 +2986,95 @@ float CDECL MSVCR120_nanf(const char *tagp)
{
return NAN;
}
/*********************************************************************
* _except1 (MSVCR120.@)
* TODO:
* - find meaning of ignored cw and operation bits
* - unk parameter
*/
double CDECL _except1(DWORD fpe, _FP_OPERATION_CODE op, double arg, double res, DWORD cw, void *unk)
{
ULONG_PTR exception_arg;
DWORD exception = 0;
MSVCRT_fenv_t env;
DWORD fpword = 0;
WORD operation;
TRACE("(%x %x %lf %lf %x %p)\n", fpe, op, arg, res, cw, unk);
#ifdef _WIN64
cw = ((cw >> 7) & 0x3f) | ((cw >> 3) & 0xc00);
#endif
operation = op << 5;
exception_arg = (ULONG_PTR)&operation;
MSVCRT_fegetenv(&env);
if (fpe & 0x1) { /* overflow */
if ((fpe == 0x1 && (cw & 0x8)) || (fpe==0x11 && (cw & 0x28))) {
/* 32-bit version also sets SW_INEXACT here */
env.status |= MSVCRT__SW_OVERFLOW;
if (fpe & 0x10) env.status |= MSVCRT__SW_INEXACT;
res = signbit(res) ? -INFINITY : INFINITY;
} else {
exception = EXCEPTION_FLT_OVERFLOW;
}
} else if (fpe & 0x2) { /* underflow */
if ((fpe == 0x2 && (cw & 0x10)) || (fpe==0x12 && (cw & 0x30))) {
env.status |= MSVCRT__SW_UNDERFLOW;
if (fpe & 0x10) env.status |= MSVCRT__SW_INEXACT;
res = signbit(res) ? -0.0 : 0.0;
} else {
exception = EXCEPTION_FLT_UNDERFLOW;
}
} else if (fpe & 0x4) { /* zerodivide */
if ((fpe == 0x4 && (cw & 0x4)) || (fpe==0x14 && (cw & 0x24))) {
env.status |= MSVCRT__SW_ZERODIVIDE;
if (fpe & 0x10) env.status |= MSVCRT__SW_INEXACT;
} else {
exception = EXCEPTION_FLT_DIVIDE_BY_ZERO;
}
} else if (fpe & 0x8) { /* invalid */
if (fpe == 0x8 && (cw & 0x1)) {
env.status |= MSVCRT__SW_INVALID;
} else {
exception = EXCEPTION_FLT_INVALID_OPERATION;
}
} else if (fpe & 0x10) { /* inexact */
if (fpe == 0x10 && (cw & 0x20)) {
env.status |= MSVCRT__SW_INEXACT;
} else {
exception = EXCEPTION_FLT_INEXACT_RESULT;
}
}
if (exception)
env.status = 0;
MSVCRT_fesetenv(&env);
if (exception)
RaiseException(exception, 0, 1, &exception_arg);
if (cw & 0x1) fpword |= MSVCRT__EM_INVALID;
if (cw & 0x2) fpword |= MSVCRT__EM_DENORMAL;
if (cw & 0x4) fpword |= MSVCRT__EM_ZERODIVIDE;
if (cw & 0x8) fpword |= MSVCRT__EM_OVERFLOW;
if (cw & 0x10) fpword |= MSVCRT__EM_UNDERFLOW;
if (cw & 0x20) fpword |= MSVCRT__EM_INEXACT;
switch (cw & 0xc00)
{
case 0xc00: fpword |= MSVCRT__RC_UP|MSVCRT__RC_DOWN; break;
case 0x800: fpword |= MSVCRT__RC_UP; break;
case 0x400: fpword |= MSVCRT__RC_DOWN; break;
}
switch (cw & 0x300)
{
case 0x0: fpword |= MSVCRT__PC_24; break;
case 0x200: fpword |= MSVCRT__PC_53; break;
case 0x300: fpword |= MSVCRT__PC_64; break;
}
if (cw & 0x1000) fpword |= MSVCRT__IC_AFFINE;
_control87(fpword, 0xffffffff);
return res;
}

2
dlls/ucrtbase/ucrtbase.spec
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@ -271,7 +271,7 @@
@ cdecl _endthreadex(long)
@ cdecl _eof(long) MSVCRT__eof
@ cdecl _errno() MSVCRT__errno
@ stub _except1
@ cdecl _except1(long long double double long ptr)
@ cdecl -arch=i386 _except_handler2(ptr ptr ptr ptr)
@ cdecl -arch=i386 _except_handler3(ptr ptr ptr ptr)
@ cdecl -arch=i386 _except_handler4_common(ptr ptr ptr ptr ptr ptr)