Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 524 deletions

diff --git a/ANDROID_3.4.5/arch/parisc/math-emu/dfadd.c b/ANDROID_3.4.5/arch/parisc/math-emu/dfadd.c
deleted file mode 100644
index d37e2d2c..00000000
--- a/ANDROID_3.4.5/arch/parisc/math-emu/dfadd.c
+++ /dev/null
@@ -1,524 +0,0 @@
-/*
- * Linux/PA-RISC Project (http://www.parisc-linux.org/)
- *
- * Floating-point emulation code
- *  Copyright (C) 2001 Hewlett-Packard (Paul Bame) <bame@debian.org>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2, or (at your option)
- *    any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-/*
- * BEGIN_DESC
- *
- *  File:
- *	@(#)	pa/spmath/dfadd.c		$Revision: 1.1 $
- *
- *  Purpose:
- *	Double_add: add two double precision values.
- *
- *  External Interfaces:
- *	dbl_fadd(leftptr, rightptr, dstptr, status)
- *
- *  Internal Interfaces:
- *
- *  Theory:
- *	<<please update with a overview of the operation of this file>>
- *
- * END_DESC
-*/
-
-
-#include "float.h"
-#include "dbl_float.h"
-
-/*
- * Double_add: add two double precision values.
- */
-dbl_fadd(
-    dbl_floating_point *leftptr,
-    dbl_floating_point *rightptr,
-    dbl_floating_point *dstptr,
-    unsigned int *status)
-{
-    register unsigned int signless_upper_left, signless_upper_right, save;
-    register unsigned int leftp1, leftp2, rightp1, rightp2, extent;
-    register unsigned int resultp1 = 0, resultp2 = 0;
-    
-    register int result_exponent, right_exponent, diff_exponent;
-    register int sign_save, jumpsize;
-    register boolean inexact = FALSE;
-    register boolean underflowtrap;
-        
-    /* Create local copies of the numbers */
-    Dbl_copyfromptr(leftptr,leftp1,leftp2);
-    Dbl_copyfromptr(rightptr,rightp1,rightp2);
-
-    /* A zero "save" helps discover equal operands (for later),  *
-     * and is used in swapping operands (if needed).             */
-    Dbl_xortointp1(leftp1,rightp1,/*to*/save);
-
-    /*
-     * check first operand for NaN's or infinity
-     */
-    if ((result_exponent = Dbl_exponent(leftp1)) == DBL_INFINITY_EXPONENT)
-	{
-	if (Dbl_iszero_mantissa(leftp1,leftp2)) 
-	    {
-	    if (Dbl_isnotnan(rightp1,rightp2)) 
-		{
-		if (Dbl_isinfinity(rightp1,rightp2) && save!=0) 
-		    {
-		    /* 
-		     * invalid since operands are opposite signed infinity's
-		     */
-		    if (Is_invalidtrap_enabled()) return(INVALIDEXCEPTION);
-                    Set_invalidflag();
-                    Dbl_makequietnan(resultp1,resultp2);
-		    Dbl_copytoptr(resultp1,resultp2,dstptr);
-		    return(NOEXCEPTION);
-		    }
-		/*
-	 	 * return infinity
-	 	 */
-		Dbl_copytoptr(leftp1,leftp2,dstptr);
-		return(NOEXCEPTION);
-		}
-	    }
-	else 
-	    {
-            /*
-             * is NaN; signaling or quiet?
-             */
-            if (Dbl_isone_signaling(leftp1)) 
-		{
-               	/* trap if INVALIDTRAP enabled */
-		if (Is_invalidtrap_enabled()) return(INVALIDEXCEPTION);
-        	/* make NaN quiet */
-        	Set_invalidflag();
-        	Dbl_set_quiet(leftp1);
-        	}
-	    /* 
-	     * is second operand a signaling NaN? 
-	     */
-	    else if (Dbl_is_signalingnan(rightp1)) 
-		{
-        	/* trap if INVALIDTRAP enabled */
-               	if (Is_invalidtrap_enabled()) return(INVALIDEXCEPTION);
-		/* make NaN quiet */
-		Set_invalidflag();
-		Dbl_set_quiet(rightp1);
-		Dbl_copytoptr(rightp1,rightp2,dstptr);
-		return(NOEXCEPTION);
-		}
-	    /*
- 	     * return quiet NaN
- 	     */
-	    Dbl_copytoptr(leftp1,leftp2,dstptr);
- 	    return(NOEXCEPTION);
-	    }
-	} /* End left NaN or Infinity processing */
-    /*
-     * check second operand for NaN's or infinity
-     */
-    if (Dbl_isinfinity_exponent(rightp1)) 
-	{
-	if (Dbl_iszero_mantissa(rightp1,rightp2)) 
-	    {
-	    /* return infinity */
-	    Dbl_copytoptr(rightp1,rightp2,dstptr);
-	    return(NOEXCEPTION);
-	    }
-        /*
-         * is NaN; signaling or quiet?
-         */
-        if (Dbl_isone_signaling(rightp1)) 
-	    {
-            /* trap if INVALIDTRAP enabled */
-	    if (Is_invalidtrap_enabled()) return(INVALIDEXCEPTION);
-	    /* make NaN quiet */
-	    Set_invalidflag();
-	    Dbl_set_quiet(rightp1);
-	    }
-	/*
-	 * return quiet NaN
- 	 */
-	Dbl_copytoptr(rightp1,rightp2,dstptr);
-	return(NOEXCEPTION);
-    	} /* End right NaN or Infinity processing */
-
-    /* Invariant: Must be dealing with finite numbers */
-
-    /* Compare operands by removing the sign */
-    Dbl_copytoint_exponentmantissap1(leftp1,signless_upper_left);
-    Dbl_copytoint_exponentmantissap1(rightp1,signless_upper_right);
-
-    /* sign difference selects add or sub operation. */
-    if(Dbl_ismagnitudeless(leftp2,rightp2,signless_upper_left,signless_upper_right))
-	{
-	/* Set the left operand to the larger one by XOR swap *
-	 *  First finish the first word using "save"          */
-	Dbl_xorfromintp1(save,rightp1,/*to*/rightp1);
-	Dbl_xorfromintp1(save,leftp1,/*to*/leftp1);
-     	Dbl_swap_lower(leftp2,rightp2);
-	result_exponent = Dbl_exponent(leftp1);
-	}
-    /* Invariant:  left is not smaller than right. */ 
-
-    if((right_exponent = Dbl_exponent(rightp1)) == 0)
-        {
-	/* Denormalized operands.  First look for zeroes */
-	if(Dbl_iszero_mantissa(rightp1,rightp2)) 
-	    {
-	    /* right is zero */
-	    if(Dbl_iszero_exponentmantissa(leftp1,leftp2))
-		{
-		/* Both operands are zeros */
-		if(Is_rounding_mode(ROUNDMINUS))
-		    {
-		    Dbl_or_signs(leftp1,/*with*/rightp1);
-		    }
-		else
-		    {
-		    Dbl_and_signs(leftp1,/*with*/rightp1);
-		    }
-		}
-	    else 
-		{
-		/* Left is not a zero and must be the result.  Trapped
-		 * underflows are signaled if left is denormalized.  Result
-		 * is always exact. */
-		if( (result_exponent == 0) && Is_underflowtrap_enabled() )
-		    {
-		    /* need to normalize results mantissa */
-	    	    sign_save = Dbl_signextendedsign(leftp1);
-		    Dbl_leftshiftby1(leftp1,leftp2);
-		    Dbl_normalize(leftp1,leftp2,result_exponent);
-		    Dbl_set_sign(leftp1,/*using*/sign_save);
-                    Dbl_setwrapped_exponent(leftp1,result_exponent,unfl);
-		    Dbl_copytoptr(leftp1,leftp2,dstptr);
-		    /* inexact = FALSE */
-		    return(UNDERFLOWEXCEPTION);
-		    }
-		}
-	    Dbl_copytoptr(leftp1,leftp2,dstptr);
-	    return(NOEXCEPTION);
-	    }
-
-	/* Neither are zeroes */
-	Dbl_clear_sign(rightp1);	/* Exponent is already cleared */
-	if(result_exponent == 0 )
-	    {
-	    /* Both operands are denormalized.  The result must be exact
-	     * and is simply calculated.  A sum could become normalized and a
-	     * difference could cancel to a true zero. */
-	    if( (/*signed*/int) save < 0 )
-		{
-		Dbl_subtract(leftp1,leftp2,/*minus*/rightp1,rightp2,
-		/*into*/resultp1,resultp2);
-		if(Dbl_iszero_mantissa(resultp1,resultp2))
-		    {
-		    if(Is_rounding_mode(ROUNDMINUS))
-			{
-			Dbl_setone_sign(resultp1);
-			}
-		    else
-			{
-			Dbl_setzero_sign(resultp1);
-			}
-		    Dbl_copytoptr(resultp1,resultp2,dstptr);
-		    return(NOEXCEPTION);
-		    }
-		}
-	    else
-		{
-		Dbl_addition(leftp1,leftp2,rightp1,rightp2,
-		/*into*/resultp1,resultp2);
-		if(Dbl_isone_hidden(resultp1))
-		    {
-		    Dbl_copytoptr(resultp1,resultp2,dstptr);
-		    return(NOEXCEPTION);
-		    }
-		}
-	    if(Is_underflowtrap_enabled())
-		{
-		/* need to normalize result */
-	    	sign_save = Dbl_signextendedsign(resultp1);
-		Dbl_leftshiftby1(resultp1,resultp2);
-		Dbl_normalize(resultp1,resultp2,result_exponent);
-		Dbl_set_sign(resultp1,/*using*/sign_save);
-                Dbl_setwrapped_exponent(resultp1,result_exponent,unfl);
-	        Dbl_copytoptr(resultp1,resultp2,dstptr);
-		/* inexact = FALSE */
-	        return(UNDERFLOWEXCEPTION);
-		}
-	    Dbl_copytoptr(resultp1,resultp2,dstptr);
-	    return(NOEXCEPTION);
-	    }
-	right_exponent = 1;	/* Set exponent to reflect different bias
-				 * with denomalized numbers. */
-	}
-    else
-	{
-	Dbl_clear_signexponent_set_hidden(rightp1);
-	}
-    Dbl_clear_exponent_set_hidden(leftp1);
-    diff_exponent = result_exponent - right_exponent;
-
-    /* 
-     * Special case alignment of operands that would force alignment 
-     * beyond the extent of the extension.  A further optimization
-     * could special case this but only reduces the path length for this
-     * infrequent case.
-     */
-    if(diff_exponent > DBL_THRESHOLD)
-	{
-	diff_exponent = DBL_THRESHOLD;
-	}
-    
-    /* Align right operand by shifting to right */
-    Dbl_right_align(/*operand*/rightp1,rightp2,/*shifted by*/diff_exponent,
-    /*and lower to*/extent);
-
-    /* Treat sum and difference of the operands separately. */
-    if( (/*signed*/int) save < 0 )
-	{
-	/*
-	 * Difference of the two operands.  Their can be no overflow.  A
-	 * borrow can occur out of the hidden bit and force a post
-	 * normalization phase.
-	 */
-	Dbl_subtract_withextension(leftp1,leftp2,/*minus*/rightp1,rightp2,
-	/*with*/extent,/*into*/resultp1,resultp2);
-	if(Dbl_iszero_hidden(resultp1))
-	    {
-	    /* Handle normalization */
-	    /* A straight forward algorithm would now shift the result
-	     * and extension left until the hidden bit becomes one.  Not
-	     * all of the extension bits need participate in the shift.
-	     * Only the two most significant bits (round and guard) are
-	     * needed.  If only a single shift is needed then the guard
-	     * bit becomes a significant low order bit and the extension
-	     * must participate in the rounding.  If more than a single 
-	     * shift is needed, then all bits to the right of the guard 
-	     * bit are zeros, and the guard bit may or may not be zero. */
-	    sign_save = Dbl_signextendedsign(resultp1);
-            Dbl_leftshiftby1_withextent(resultp1,resultp2,extent,resultp1,resultp2);
-
-            /* Need to check for a zero result.  The sign and exponent
-	     * fields have already been zeroed.  The more efficient test
-	     * of the full object can be used.
-	     */
-    	    if(Dbl_iszero(resultp1,resultp2))
-		/* Must have been "x-x" or "x+(-x)". */
-		{
-		if(Is_rounding_mode(ROUNDMINUS)) Dbl_setone_sign(resultp1);
-		Dbl_copytoptr(resultp1,resultp2,dstptr);
-		return(NOEXCEPTION);
-		}
-	    result_exponent--;
-	    /* Look to see if normalization is finished. */
-	    if(Dbl_isone_hidden(resultp1))
-		{
-		if(result_exponent==0)
-		    {
-		    /* Denormalized, exponent should be zero.  Left operand *
-		     * was normalized, so extent (guard, round) was zero    */
-		    goto underflow;
-		    }
-		else
-		    {
-		    /* No further normalization is needed. */
-		    Dbl_set_sign(resultp1,/*using*/sign_save);
-	    	    Ext_leftshiftby1(extent);
-		    goto round;
-		    }
-		}
-
-	    /* Check for denormalized, exponent should be zero.  Left    *
-	     * operand was normalized, so extent (guard, round) was zero */
-	    if(!(underflowtrap = Is_underflowtrap_enabled()) &&
-	       result_exponent==0) goto underflow;
-
-	    /* Shift extension to complete one bit of normalization and
-	     * update exponent. */
-	    Ext_leftshiftby1(extent);
-
-	    /* Discover first one bit to determine shift amount.  Use a
-	     * modified binary search.  We have already shifted the result
-	     * one position right and still not found a one so the remainder
-	     * of the extension must be zero and simplifies rounding. */
-	    /* Scan bytes */
-	    while(Dbl_iszero_hiddenhigh7mantissa(resultp1))
-		{
-		Dbl_leftshiftby8(resultp1,resultp2);
-		if((result_exponent -= 8) <= 0  && !underflowtrap)
-		    goto underflow;
-		}
-	    /* Now narrow it down to the nibble */
-	    if(Dbl_iszero_hiddenhigh3mantissa(resultp1))
-		{
-		/* The lower nibble contains the normalizing one */
-		Dbl_leftshiftby4(resultp1,resultp2);
-		if((result_exponent -= 4) <= 0 && !underflowtrap)
-		    goto underflow;
-		}
-	    /* Select case were first bit is set (already normalized)
-	     * otherwise select the proper shift. */
-	    if((jumpsize = Dbl_hiddenhigh3mantissa(resultp1)) > 7)
-		{
-		/* Already normalized */
-		if(result_exponent <= 0) goto underflow;
-		Dbl_set_sign(resultp1,/*using*/sign_save);
-		Dbl_set_exponent(resultp1,/*using*/result_exponent);
-		Dbl_copytoptr(resultp1,resultp2,dstptr);
-		return(NOEXCEPTION);
-		}
-	    Dbl_sethigh4bits(resultp1,/*using*/sign_save);
-	    switch(jumpsize) 
-		{
-		case 1:
-		    {
-		    Dbl_leftshiftby3(resultp1,resultp2);
-		    result_exponent -= 3;
-		    break;
-		    }
-		case 2:
-		case 3:
-		    {
-		    Dbl_leftshiftby2(resultp1,resultp2);
-		    result_exponent -= 2;
-		    break;
-		    }
-		case 4:
-		case 5:
-		case 6:
-		case 7:
-		    {
-		    Dbl_leftshiftby1(resultp1,resultp2);
-		    result_exponent -= 1;
-		    break;
-		    }
-		}
-	    if(result_exponent > 0) 
-		{
-		Dbl_set_exponent(resultp1,/*using*/result_exponent);
-		Dbl_copytoptr(resultp1,resultp2,dstptr);
-		return(NOEXCEPTION); 	/* Sign bit is already set */
-		}
-	    /* Fixup potential underflows */
-	  underflow:
-	    if(Is_underflowtrap_enabled())
-		{
-		Dbl_set_sign(resultp1,sign_save);
-                Dbl_setwrapped_exponent(resultp1,result_exponent,unfl);
-		Dbl_copytoptr(resultp1,resultp2,dstptr);
-		/* inexact = FALSE */
-		return(UNDERFLOWEXCEPTION);
-		}
-	    /* 
-	     * Since we cannot get an inexact denormalized result,
-	     * we can now return.
-	     */
-	    Dbl_fix_overshift(resultp1,resultp2,(1-result_exponent),extent);
-	    Dbl_clear_signexponent(resultp1);
-	    Dbl_set_sign(resultp1,sign_save);
-	    Dbl_copytoptr(resultp1,resultp2,dstptr);
-	    return(NOEXCEPTION);
-	    } /* end if(hidden...)... */
-	/* Fall through and round */
-	} /* end if(save < 0)... */
-    else 
-	{
-	/* Add magnitudes */
-	Dbl_addition(leftp1,leftp2,rightp1,rightp2,/*to*/resultp1,resultp2);
-	if(Dbl_isone_hiddenoverflow(resultp1))
-	    {
-	    /* Prenormalization required. */
-	    Dbl_rightshiftby1_withextent(resultp2,extent,extent);
-	    Dbl_arithrightshiftby1(resultp1,resultp2);
-	    result_exponent++;
-	    } /* end if hiddenoverflow... */
-	} /* end else ...add magnitudes... */
-    
-    /* Round the result.  If the extension is all zeros,then the result is
-     * exact.  Otherwise round in the correct direction.  No underflow is
-     * possible. If a postnormalization is necessary, then the mantissa is
-     * all zeros so no shift is needed. */
-  round:
-    if(Ext_isnotzero(extent))
-	{
-	inexact = TRUE;
-	switch(Rounding_mode())
-	    {
-	    case ROUNDNEAREST: /* The default. */
-	    if(Ext_isone_sign(extent))
-		{
-		/* at least 1/2 ulp */
-		if(Ext_isnotzero_lower(extent)  ||
-		  Dbl_isone_lowmantissap2(resultp2))
-		    {
-		    /* either exactly half way and odd or more than 1/2ulp */
-		    Dbl_increment(resultp1,resultp2);
-		    }
-		}
-	    break;
-
-	    case ROUNDPLUS:
-	    if(Dbl_iszero_sign(resultp1))
-		{
-		/* Round up positive results */
-		Dbl_increment(resultp1,resultp2);
-		}
-	    break;
-	    
-	    case ROUNDMINUS:
-	    if(Dbl_isone_sign(resultp1))
-		{
-		/* Round down negative results */
-		Dbl_increment(resultp1,resultp2);
-		}
-	    
-	    case ROUNDZERO:;
-	    /* truncate is simple */
-	    } /* end switch... */
-	if(Dbl_isone_hiddenoverflow(resultp1)) result_exponent++;
-	}
-    if(result_exponent == DBL_INFINITY_EXPONENT)
-        {
-        /* Overflow */
-        if(Is_overflowtrap_enabled())
-	    {
-	    Dbl_setwrapped_exponent(resultp1,result_exponent,ovfl);
-	    Dbl_copytoptr(resultp1,resultp2,dstptr);
-	    if (inexact)
-		if (Is_inexacttrap_enabled())
-			return(OVERFLOWEXCEPTION | INEXACTEXCEPTION);
-		else Set_inexactflag();
-	    return(OVERFLOWEXCEPTION);
-	    }
-        else
-	    {
-	    inexact = TRUE;
-	    Set_overflowflag();
-	    Dbl_setoverflow(resultp1,resultp2);
-	    }
-	}
-    else Dbl_set_exponent(resultp1,result_exponent);
-    Dbl_copytoptr(resultp1,resultp2,dstptr);
-    if(inexact) 
-	if(Is_inexacttrap_enabled())
-	    return(INEXACTEXCEPTION);
-	else Set_inexactflag();
-    return(NOEXCEPTION);
-}