i386: move math-emu

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 132 deletions

diff --git a/arch/i386/math-emu/reg_mul.c b/arch/i386/math-emu/reg_mul.c
deleted file mode 100644
index 40f50b61bc6..00000000000
--- a/arch/i386/math-emu/reg_mul.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*---------------------------------------------------------------------------+
- |  reg_mul.c                                                                |
- |                                                                           |
- | Multiply one FPU_REG by another, put the result in a destination FPU_REG. |
- |                                                                           |
- | Copyright (C) 1992,1993,1997                                              |
- |                  W. Metzenthen, 22 Parker St, Ormond, Vic 3163, Australia |
- |                  E-mail   billm@suburbia.net                              |
- |                                                                           |
- | Returns the tag of the result if no exceptions or errors occurred.        |
- |                                                                           |
- +---------------------------------------------------------------------------*/
-
-/*---------------------------------------------------------------------------+
- | The destination may be any FPU_REG, including one of the source FPU_REGs. |
- +---------------------------------------------------------------------------*/
-
-#include "fpu_emu.h"
-#include "exception.h"
-#include "reg_constant.h"
-#include "fpu_system.h"
-
-
-/*
-  Multiply two registers to give a register result.
-  The sources are st(deststnr) and (b,tagb,signb).
-  The destination is st(deststnr).
-  */
-/* This routine must be called with non-empty source registers */
-int FPU_mul(FPU_REG const *b, u_char tagb, int deststnr, int control_w)
-{
-  FPU_REG *a = &st(deststnr);
-  FPU_REG *dest = a;
-  u_char taga = FPU_gettagi(deststnr);
-  u_char saved_sign = getsign(dest);
-  u_char sign = (getsign(a) ^ getsign(b));
-  int tag;
-
-
-  if ( !(taga | tagb) )
-    {
-      /* Both regs Valid, this should be the most common case. */
-
-      tag = FPU_u_mul(a, b, dest, control_w, sign, exponent(a) + exponent(b));
-      if ( tag < 0 )
-	{
-	  setsign(dest, saved_sign);
-	  return tag;
-	}
-      FPU_settagi(deststnr, tag);
-      return tag;
-    }
-
-  if ( taga == TAG_Special )
-    taga = FPU_Special(a);
-  if ( tagb == TAG_Special )
-    tagb = FPU_Special(b);
-
-  if ( ((taga == TAG_Valid) && (tagb == TW_Denormal))
-	    || ((taga == TW_Denormal) && (tagb == TAG_Valid))
-	    || ((taga == TW_Denormal) && (tagb == TW_Denormal)) )
-    {
-      FPU_REG x, y;
-      if ( denormal_operand() < 0 )
-	return FPU_Exception;
-
-      FPU_to_exp16(a, &x);
-      FPU_to_exp16(b, &y);
-      tag = FPU_u_mul(&x, &y, dest, control_w, sign,
-		      exponent16(&x) + exponent16(&y));
-      if ( tag < 0 )
-	{
-	  setsign(dest, saved_sign);
-	  return tag;
-	}
-      FPU_settagi(deststnr, tag);
-      return tag;
-    }
-  else if ( (taga <= TW_Denormal) && (tagb <= TW_Denormal) )
-    {
-      if ( ((tagb == TW_Denormal) || (taga == TW_Denormal))
-	   && (denormal_operand() < 0) )
-	return FPU_Exception;
-
-      /* Must have either both arguments == zero, or
-	 one valid and the other zero.
-	 The result is therefore zero. */
-      FPU_copy_to_regi(&CONST_Z, TAG_Zero, deststnr);
-      /* The 80486 book says that the answer is +0, but a real
-	 80486 behaves this way.
-	 IEEE-754 apparently says it should be this way. */
-      setsign(dest, sign);
-      return TAG_Zero;
-    }
-      /* Must have infinities, NaNs, etc */
-  else if ( (taga == TW_NaN) || (tagb == TW_NaN) )
-    {
-      return real_2op_NaN(b, tagb, deststnr, &st(0));
-    }
-  else if ( ((taga == TW_Infinity) && (tagb == TAG_Zero))
-	    || ((tagb == TW_Infinity) && (taga == TAG_Zero)) )
-    {
-      return arith_invalid(deststnr);  /* Zero*Infinity is invalid */
-    }
-  else if ( ((taga == TW_Denormal) || (tagb == TW_Denormal))
-	    && (denormal_operand() < 0) )
-    {
-      return FPU_Exception;
-    }
-  else if (taga == TW_Infinity)
-    {
-      FPU_copy_to_regi(a, TAG_Special, deststnr);
-      setsign(dest, sign);
-      return TAG_Special;
-    }
-  else if (tagb == TW_Infinity)
-    {
-      FPU_copy_to_regi(b, TAG_Special, deststnr);
-      setsign(dest, sign);
-      return TAG_Special;
-    }
-
-#ifdef PARANOID
-  else
-    {
-      EXCEPTION(EX_INTERNAL|0x102);
-      return FPU_Exception;
-    }
-#endif /* PARANOID */ 
-
-	return 0;
-}