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msvcrt: Implemented __control87_2.

This commit is contained in:
Alexandre Julliard 2011-01-25 21:01:12 +01:00
parent 72e089d600
commit a8d8e4a367
7 changed files with 168 additions and 72 deletions
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2
dlls/msvcr100/msvcr100.spec
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@ -386,7 +386,7 @@
@ extern __argv msvcrt.__argv
@ extern __badioinfo msvcrt.__badioinfo
@ cdecl __clean_type_info_names_internal(ptr) msvcr90.__clean_type_info_names_internal
@ stub __control87_2
@ cdecl -arch=i386 __control87_2(long long ptr ptr) msvcrt.__control87_2
@ stub __create_locale
@ cdecl __crtCompareStringA(long long str long str long) msvcrt.__crtCompareStringA
@ cdecl __crtCompareStringW(long long wstr long wstr long) msvcrt.__crtCompareStringW

2
dlls/msvcr80/msvcr80.spec
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@ -197,7 +197,7 @@
@ extern __argv msvcrt.__argv
@ extern __badioinfo msvcrt.__badioinfo
@ cdecl __clean_type_info_names_internal(ptr) msvcr90.__clean_type_info_names_internal
@ stub __control87_2
@ cdecl -arch=i386 __control87_2(long long ptr ptr) msvcrt.__control87_2
@ stub __create_locale
@ cdecl __crtCompareStringA(long long str long str long) msvcrt.__crtCompareStringA
@ cdecl __crtCompareStringW(long long wstr long wstr long) msvcrt.__crtCompareStringW

2
dlls/msvcr90/msvcr90.spec
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@ -194,7 +194,7 @@
@ extern __argv msvcrt.__argv
@ extern __badioinfo msvcrt.__badioinfo
@ cdecl __clean_type_info_names_internal(ptr)
@ stub __control87_2
@ cdecl -arch=i386 __control87_2(long long ptr ptr) msvcrt.__control87_2
@ stub __create_locale
@ cdecl __crtCompareStringA(long long str long str long) msvcrt.__crtCompareStringA
@ cdecl __crtCompareStringW(long long wstr long wstr long) msvcrt.__crtCompareStringW

1
dlls/msvcrt/main.c
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@ -97,6 +97,7 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
msvcrt_free_tls_mem();
return FALSE;
}
msvcrt_init_math();
msvcrt_init_io();
msvcrt_init_console();
msvcrt_init_args();

215
dlls/msvcrt/math.c
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@ -51,13 +51,21 @@ typedef int (CDECL *MSVCRT_matherr_func)(struct MSVCRT__exception *);
static MSVCRT_matherr_func MSVCRT_default_matherr_func = NULL;
static BOOL sse2_supported;
static BOOL sse2_enabled;
void msvcrt_init_math(void)
{
sse2_supported = sse2_enabled = IsProcessorFeaturePresent( PF_XMMI64_INSTRUCTIONS_AVAILABLE );
}
/*********************************************************************
* _set_SSE2_enable (MSVCRT.@)
*/
int CDECL MSVCRT__set_SSE2_enable(int flag)
{
FIXME("(%x) stub\n", flag);
return flag;
sse2_enabled = flag && sse2_supported;
return sse2_enabled;
}
#ifdef __x86_64__
@ -834,73 +842,158 @@ double CDECL _chgsign(double num)
return -num;
}
/*********************************************************************
* __control87_2 (MSVCRT.@)
*
* Not exported by native msvcrt, added in msvcr80.
*/
#if defined(__i386__) || defined(__x86_64__)
int CDECL __control87_2( unsigned int newval, unsigned int mask,
unsigned int *x86_cw, unsigned int *sse2_cw )
{
#ifdef __GNUC__
unsigned long fpword;
unsigned int flags;
if (x86_cw)
{
__asm__ __volatile__( "fstcw %0" : "=m" (fpword) );
/* Convert into mask constants */
flags = 0;
if (fpword & 0x1) flags |= MSVCRT__EM_INVALID;
if (fpword & 0x2) flags |= MSVCRT__EM_DENORMAL;
if (fpword & 0x4) flags |= MSVCRT__EM_ZERODIVIDE;
if (fpword & 0x8) flags |= MSVCRT__EM_OVERFLOW;
if (fpword & 0x10) flags |= MSVCRT__EM_UNDERFLOW;
if (fpword & 0x20) flags |= MSVCRT__EM_INEXACT;
switch (fpword & 0xc00)
{
case 0xc00: flags |= MSVCRT__RC_UP|MSVCRT__RC_DOWN; break;
case 0x800: flags |= MSVCRT__RC_UP; break;
case 0x400: flags |= MSVCRT__RC_DOWN; break;
}
switch (fpword & 0x300)
{
case 0x0: flags |= MSVCRT__PC_24; break;
case 0x200: flags |= MSVCRT__PC_53; break;
case 0x300: flags |= MSVCRT__PC_64; break;
}
if (fpword & 0x1000) flags |= MSVCRT__IC_AFFINE;
TRACE( "x86 flags=%08x newval=%08x mask=%08x\n", flags, newval, mask );
if (mask)
{
flags = (flags & ~mask) | (newval & mask);
/* Convert (masked) value back to fp word */
fpword = 0;
if (flags & MSVCRT__EM_INVALID) fpword |= 0x1;
if (flags & MSVCRT__EM_DENORMAL) fpword |= 0x2;
if (flags & MSVCRT__EM_ZERODIVIDE) fpword |= 0x4;
if (flags & MSVCRT__EM_OVERFLOW) fpword |= 0x8;
if (flags & MSVCRT__EM_UNDERFLOW) fpword |= 0x10;
if (flags & MSVCRT__EM_INEXACT) fpword |= 0x20;
switch (flags & MSVCRT__MCW_RC)
{
case MSVCRT__RC_UP|MSVCRT__RC_DOWN: fpword |= 0xc00; break;
case MSVCRT__RC_UP: fpword |= 0x800; break;
case MSVCRT__RC_DOWN: fpword |= 0x400; break;
}
switch (flags & MSVCRT__MCW_PC)
{
case MSVCRT__PC_64: fpword |= 0x300; break;
case MSVCRT__PC_53: fpword |= 0x200; break;
case MSVCRT__PC_24: fpword |= 0x0; break;
}
if (flags & MSVCRT__IC_AFFINE) fpword |= 0x1000;
__asm__ __volatile__( "fldcw %0" : : "m" (fpword) );
}
*x86_cw = flags;
}
if (!sse2_cw) return 1;
if (sse2_supported)
{
__asm__ __volatile__( "stmxcsr %0" : "=m" (fpword) );
/* Convert into mask constants */
flags = 0;
if (fpword & 0x80) flags |= MSVCRT__EM_INVALID;
if (fpword & 0x100) flags |= MSVCRT__EM_DENORMAL;
if (fpword & 0x200) flags |= MSVCRT__EM_ZERODIVIDE;
if (fpword & 0x400) flags |= MSVCRT__EM_OVERFLOW;
if (fpword & 0x800) flags |= MSVCRT__EM_UNDERFLOW;
if (fpword & 0x1000) flags |= MSVCRT__EM_INEXACT;
switch (fpword & 0x6000)
{
case 0x6000: flags |= MSVCRT__RC_UP|MSVCRT__RC_DOWN; break;
case 0x4000: flags |= MSVCRT__RC_UP; break;
case 0x2000: flags |= MSVCRT__RC_DOWN; break;
}
switch (fpword & 0x8040)
{
case 0x0040: flags |= MSVCRT__DN_FLUSH_OPERANDS_SAVE_RESULTS; break;
case 0x8000: flags |= MSVCRT__DN_SAVE_OPERANDS_FLUSH_RESULTS; break;
case 0x8040: flags |= MSVCRT__DN_FLUSH; break;
}
TRACE( "sse2 flags=%08x newval=%08x mask=%08x\n", flags, newval, mask );
if (mask)
{
flags = (flags & ~mask) | (newval & mask);
/* Convert (masked) value back to fp word */
fpword = 0;
if (flags & MSVCRT__EM_INVALID) fpword |= 0x80;
if (flags & MSVCRT__EM_DENORMAL) fpword |= 0x100;
if (flags & MSVCRT__EM_ZERODIVIDE) fpword |= 0x200;
if (flags & MSVCRT__EM_OVERFLOW) fpword |= 0x400;
if (flags & MSVCRT__EM_UNDERFLOW) fpword |= 0x800;
if (flags & MSVCRT__EM_INEXACT) fpword |= 0x1000;
switch (flags & MSVCRT__MCW_RC)
{
case MSVCRT__RC_UP|MSVCRT__RC_DOWN: fpword |= 0x6000; break;
case MSVCRT__RC_UP: fpword |= 0x4000; break;
case MSVCRT__RC_DOWN: fpword |= 0x2000; break;
}
switch (flags & MSVCRT__MCW_DN)
{
case MSVCRT__DN_FLUSH_OPERANDS_SAVE_RESULTS: fpword |= 0x0040; break;
case MSVCRT__DN_SAVE_OPERANDS_FLUSH_RESULTS: fpword |= 0x8000; break;
case MSVCRT__DN_FLUSH: fpword |= 0x8040; break;
}
__asm__ __volatile__( "ldmxcsr %0" : : "m" (fpword) );
}
*sse2_cw = flags;
}
else *sse2_cw = 0;
return 1;
#else
FIXME( "not implemented\n" );
return 0;
#endif
}
#endif
/*********************************************************************
* _control87 (MSVCRT.@)
*/
unsigned int CDECL _control87(unsigned int newval, unsigned int mask)
{
#if defined(__GNUC__) && defined(__i386__)
unsigned int fpword = 0;
unsigned int flags = 0;
#if defined(__i386__) || defined(__x86_64__)
unsigned int x86_cw, sse2_cw;
TRACE("(%08x, %08x): Called\n", newval, mask);
__control87_2( newval, mask, &x86_cw, &sse2_cw );
/* Get fp control word */
__asm__ __volatile__( "fstcw %0" : "=m" (fpword) : );
TRACE("Control word before : %08x\n", fpword);
/* Convert into mask constants */
if (fpword & 0x1) flags |= MSVCRT__EM_INVALID;
if (fpword & 0x2) flags |= MSVCRT__EM_DENORMAL;
if (fpword & 0x4) flags |= MSVCRT__EM_ZERODIVIDE;
if (fpword & 0x8) flags |= MSVCRT__EM_OVERFLOW;
if (fpword & 0x10) flags |= MSVCRT__EM_UNDERFLOW;
if (fpword & 0x20) flags |= MSVCRT__EM_INEXACT;
switch(fpword & 0xC00) {
case 0xC00: flags |= MSVCRT__RC_UP|MSVCRT__RC_DOWN; break;
case 0x800: flags |= MSVCRT__RC_UP; break;
case 0x400: flags |= MSVCRT__RC_DOWN; break;
}
switch(fpword & 0x300) {
case 0x0: flags |= MSVCRT__PC_24; break;
case 0x200: flags |= MSVCRT__PC_53; break;
case 0x300: flags |= MSVCRT__PC_64; break;
}
if (fpword & 0x1000) flags |= MSVCRT__IC_AFFINE;
/* Mask with parameters */
flags = (flags & ~mask) | (newval & mask);
/* Convert (masked) value back to fp word */
fpword = 0;
if (flags & MSVCRT__EM_INVALID) fpword |= 0x1;
if (flags & MSVCRT__EM_DENORMAL) fpword |= 0x2;
if (flags & MSVCRT__EM_ZERODIVIDE) fpword |= 0x4;
if (flags & MSVCRT__EM_OVERFLOW) fpword |= 0x8;
if (flags & MSVCRT__EM_UNDERFLOW) fpword |= 0x10;
if (flags & MSVCRT__EM_INEXACT) fpword |= 0x20;
switch(flags & (MSVCRT__RC_UP | MSVCRT__RC_DOWN)) {
case MSVCRT__RC_UP|MSVCRT__RC_DOWN: fpword |= 0xC00; break;
case MSVCRT__RC_UP: fpword |= 0x800; break;
case MSVCRT__RC_DOWN: fpword |= 0x400; break;
}
switch (flags & (MSVCRT__PC_24 | MSVCRT__PC_53)) {
case MSVCRT__PC_64: fpword |= 0x300; break;
case MSVCRT__PC_53: fpword |= 0x200; break;
case MSVCRT__PC_24: fpword |= 0x0; break;
}
if (flags & MSVCRT__IC_AFFINE) fpword |= 0x1000;
TRACE("Control word after : %08x\n", fpword);
/* Put fp control word */
__asm__ __volatile__( "fldcw %0" : : "m" (fpword) );
return flags;
if ((x86_cw ^ sse2_cw) & (MSVCRT__MCW_EM | MSVCRT__MCW_RC)) x86_cw |= MSVCRT__EM_AMBIGUOUS;
return x86_cw;
#else
FIXME(":Not Implemented!\n");
return 0;
FIXME( "not implemented\n" );
return 0;
#endif
}

1
dlls/msvcrt/msvcrt.h
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@ -166,6 +166,7 @@ extern char* __cdecl __unDNameEx(char *,const char*,int,malloc_func_t,free_func_
extern void msvcrt_init_mt_locks(void);
extern void msvcrt_free_mt_locks(void);
extern void msvcrt_init_math(void);
extern void msvcrt_init_io(void);
extern void msvcrt_free_io(void);
extern void msvcrt_init_console(void);

17
dlls/msvcrt/msvcrt.spec
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@ -1475,14 +1475,15 @@
@ varargs wscanf_s(wstr) MSVCRT_wscanf_s
# Functions not exported in native dll:
@ cdecl _set_abort_behavior(long long) MSVCRT__set_abort_behavior
@ cdecl _get_invalid_parameter_handler()
@ cdecl _set_invalid_parameter_handler(ptr)
@ cdecl _create_locale(long str) MSVCRT__create_locale
@ cdecl _free_locale(ptr) MSVCRT__free_locale
@ cdecl _configthreadlocale(long)
@ cdecl _wcstod_l(wstr ptr) MSVCRT__wcstod_l
@ cdecl ___mb_cur_max_l_func(ptr)
@ cdecl _set_purecall_handler(ptr)
@ cdecl -arch=i386 __control87_2(long long ptr ptr)
@ cdecl _configthreadlocale(long)
@ cdecl _create_locale(long str) MSVCRT__create_locale
@ cdecl _dupenv_s(ptr ptr str)
@ cdecl _free_locale(ptr) MSVCRT__free_locale
@ cdecl _get_invalid_parameter_handler()
@ cdecl _set_abort_behavior(long long) MSVCRT__set_abort_behavior
@ cdecl _set_invalid_parameter_handler(ptr)
@ cdecl _set_purecall_handler(ptr)
@ cdecl _wcstod_l(wstr ptr) MSVCRT__wcstod_l
@ cdecl _wdupenv_s(ptr ptr str)