[SDK] One step further towards ReactOS source code tree restructure: the sdk folder...

[reactos.git] / reactos / lib / sdk / crt / float / i386 / cntrlfp.c

diff --git a/reactos/lib/sdk/crt/float/i386/cntrlfp.c b/reactos/lib/sdk/crt/float/i386/cntrlfp.c
deleted file mode 100644 (file)
index 8ecd3fc..0000000
--- a/reactos/lib/sdk/crt/float/i386/cntrlfp.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
-
-#include <precomp.h>
-#include <float.h>
-
-#define X87_CW_IM   (1<<0)      /* Invalid operation mask */
-#define X87_CW_DM   (1<<1)      /* Denormal operand mask */
-#define X87_CW_ZM   (1<<2)      /* Zero divide mask */
-#define X87_CW_OM   (1<<3)      /* Overflow mask */
-#define X87_CW_UM   (1<<4)      /* Underflow mask */
-#define X87_CW_PM   (1<<5)      /* Precision mask */
-
-#define X87_CW_PC_MASK     (3<<8)   /* precision control mask */
-#define X87_CW_PC24        (0<<8)   /* 24 bit precision */
-#define X87_CW_PC53        (2<<8)   /* 53 bit precision */
-#define X87_CW_PC64        (3<<8)   /* 64 bit precision */
-
-#define X87_CW_RC_MASK     (3<<10)  /* rounding control mask */
-#define X87_CW_RC_NEAREST  (0<<10)  /* round to nearest */
-#define X87_CW_RC_DOWN     (1<<10)  /* round down */
-#define X87_CW_RC_UP       (2<<10)  /* round up */
-#define X87_CW_RC_ZERO     (3<<10)  /* round toward zero (chop) */
-
-#define X87_CW_IC          (1<<12)  /* infinity control flag */
-
-#ifdef _M_AMD64
-unsigned int __getfpcw87(void);
-void __setfpcw87(unsigned int);
-#endif
-
-/*
- * @implemented
- */
-
-unsigned int CDECL _controlfp(unsigned int newval, unsigned int mask)
-{
-  return _control87( newval, mask & ~_EM_DENORMAL );
-}
-
-/*********************************************************************
- *             _control87 (MSVCRT.@)
- */
-unsigned int CDECL _control87(unsigned int newval, unsigned int mask)
-{
-  unsigned int fpword = 0;
-  unsigned int flags = 0;
-
-  TRACE("(%08x, %08x): Called\n", newval, mask);
-
-  /* Get fp control word */
-#ifdef _M_AMD64
-  fpword = __getfpcw87();
-#elif defined(__GNUC__)
-  __asm__ __volatile__( "fstcw %0" : "=m" (fpword) : );
-#else
-  __asm fstcw [fpword];
-#endif
-
-  TRACE("Control word before : %08x\n", fpword);
-
-  /* Convert into mask constants */
-  if (fpword & 0x1)  flags |= _EM_INVALID;
-  if (fpword & 0x2)  flags |= _EM_DENORMAL;
-  if (fpword & 0x4)  flags |= _EM_ZERODIVIDE;
-  if (fpword & 0x8)  flags |= _EM_OVERFLOW;
-  if (fpword & 0x10) flags |= _EM_UNDERFLOW;
-  if (fpword & 0x20) flags |= _EM_INEXACT;
-  switch(fpword & 0xC00) {
-  case 0xC00: flags |= _RC_UP|_RC_DOWN; break;
-  case 0x800: flags |= _RC_UP; break;
-  case 0x400: flags |= _RC_DOWN; break;
-  }
-  switch(fpword & 0x300) {
-  case 0x0:   flags |= _PC_24; break;
-  case 0x200: flags |= _PC_53; break;
-  case 0x300: flags |= _PC_64; break;
-  }
-  if (fpword & 0x1000) flags |= _IC_AFFINE;
-
-  /* Mask with parameters */
-  flags = (flags & ~mask) | (newval & mask);
-
-  /* Convert (masked) value back to fp word */
-  fpword = 0;
-  if (flags & _EM_INVALID)    fpword |= 0x1;
-  if (flags & _EM_DENORMAL)   fpword |= 0x2;
-  if (flags & _EM_ZERODIVIDE) fpword |= 0x4;
-  if (flags & _EM_OVERFLOW)   fpword |= 0x8;
-  if (flags & _EM_UNDERFLOW)  fpword |= 0x10;
-  if (flags & _EM_INEXACT)    fpword |= 0x20;
-  switch(flags & (_RC_UP | _RC_DOWN)) {
-  case _RC_UP|_RC_DOWN: fpword |= 0xC00; break;
-  case _RC_UP:          fpword |= 0x800; break;
-  case _RC_DOWN:        fpword |= 0x400; break;
-  }
-  switch (flags & (_PC_24 | _PC_53)) {
-  case _PC_64: fpword |= 0x300; break;
-  case _PC_53: fpword |= 0x200; break;
-  case _PC_24: fpword |= 0x0; break;
-  }
-  if (flags & _IC_AFFINE) fpword |= 0x1000;
-
-  TRACE("Control word after  : %08x\n", fpword);
-
-  /* Put fp control word */
-#ifdef _M_AMD64
-  __setfpcw87(fpword);
-#elif defined(__GNUC__)
-  __asm__ __volatile__( "fldcw %0" : : "m" (fpword) );
-#else
-  __asm fldcw [fpword];
-#endif
-
-  return flags;
-}
-
-/*********************************************************************
- *              _controlfp_s (MSVCRT.@)
- */
-int CDECL _controlfp_s(unsigned int *cur, unsigned int newval, unsigned int mask)
-{
-#ifdef __i386__
-    unsigned int val;
-
-    if (!MSVCRT_CHECK_PMT( !(newval & mask & ~(_MCW_EM | _MCW_IC | _MCW_RC | _MCW_PC | _MCW_DN))))
-    {
-        if (cur) *cur = _controlfp( 0, 0 );  /* retrieve it anyway */
-        return EINVAL;
-    }
-    val = _controlfp( newval, mask );
-    if (cur) *cur = val;
-    return 0;
-#else
-    FIXME(":Not Implemented!\n");
-    return 0;
-#endif
-}