Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 252 insertions, 0 deletions

diff --git a/arch/parisc/math-emu/frnd.c b/arch/parisc/math-emu/frnd.c
new file mode 100644
index 000000000000..904b3844bf26
--- /dev/null
+++ b/arch/parisc/math-emu/frnd.c
@@ -0,0 +1,252 @@
+/*
+ * 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
+ *
+ *  Purpose:
+ *      Single Floating-point Round to Integer
+ *      Double Floating-point Round to Integer
+ *      Quad Floating-point Round to Integer (returns unimplemented)
+ *
+ *  External Interfaces:
+ *      dbl_frnd(srcptr,nullptr,dstptr,status)
+ *      sgl_frnd(srcptr,nullptr,dstptr,status)
+ *
+ * END_DESC
+*/
+
+
+#include "float.h"
+#include "sgl_float.h"
+#include "dbl_float.h"
+#include "cnv_float.h"
+
+/*
+ *  Single Floating-point Round to Integer
+ */
+
+/*ARGSUSED*/
+int
+sgl_frnd(sgl_floating_point *srcptr,
+        unsigned int *nullptr,
+        sgl_floating_point *dstptr,
+        unsigned int *status)
+{
+        register unsigned int src, result;
+        register int src_exponent;
+        register boolean inexact = FALSE;
+
+        src = *srcptr;
+        /*
+         * check source operand for NaN or infinity
+         */
+        if ((src_exponent = Sgl_exponent(src)) == SGL_INFINITY_EXPONENT) {
+                /*
+                 * is signaling NaN?
+                 */
+                if (Sgl_isone_signaling(src)) {
+                        /* trap if INVALIDTRAP enabled */
+                        if (Is_invalidtrap_enabled()) return(INVALIDEXCEPTION);
+                        /* make NaN quiet */
+                        Set_invalidflag();
+                        Sgl_set_quiet(src);
+                }
+                /*
+                 * return quiet NaN or infinity
+                 */
+                *dstptr = src;
+                return(NOEXCEPTION);
+        }
+        /* 
+         * Need to round?
+         */
+        if ((src_exponent -= SGL_BIAS) >= SGL_P - 1) {
+                *dstptr = src;
+                return(NOEXCEPTION);
+        }
+        /*
+         * Generate result
+         */
+        if (src_exponent >= 0) {
+                Sgl_clear_exponent_set_hidden(src);
+                result = src;
+                Sgl_rightshift(result,(SGL_P-1) - (src_exponent));
+                /* check for inexact */
+                if (Sgl_isinexact_to_fix(src,src_exponent)) {
+                        inexact = TRUE;
+                        /*  round result  */
+                        switch (Rounding_mode()) {
+                        case ROUNDPLUS:
+                             if (Sgl_iszero_sign(src)) Sgl_increment(result);
+                             break;
+                        case ROUNDMINUS:
+                             if (Sgl_isone_sign(src)) Sgl_increment(result);
+                             break;
+                        case ROUNDNEAREST:
+                             if (Sgl_isone_roundbit(src,src_exponent))
+                                if (Sgl_isone_stickybit(src,src_exponent) 
+                                || (Sgl_isone_lowmantissa(result))) 
+                                        Sgl_increment(result);
+                        } 
+                }
+                Sgl_leftshift(result,(SGL_P-1) - (src_exponent));
+                if (Sgl_isone_hiddenoverflow(result)) 
+                        Sgl_set_exponent(result,src_exponent + (SGL_BIAS+1));
+                else Sgl_set_exponent(result,src_exponent + SGL_BIAS);
+        }
+        else {
+                result = src;           /* set sign */
+                Sgl_setzero_exponentmantissa(result);
+                /* check for inexact */
+                if (Sgl_isnotzero_exponentmantissa(src)) {
+                        inexact = TRUE;
+                        /*  round result  */
+                        switch (Rounding_mode()) {
+                        case ROUNDPLUS:
+                             if (Sgl_iszero_sign(src)) 
+                                Sgl_set_exponent(result,SGL_BIAS);
+                             break;
+                        case ROUNDMINUS:
+                             if (Sgl_isone_sign(src)) 
+                                Sgl_set_exponent(result,SGL_BIAS);
+                             break;
+                        case ROUNDNEAREST:
+                             if (src_exponent == -1)
+                                if (Sgl_isnotzero_mantissa(src))
+                                   Sgl_set_exponent(result,SGL_BIAS);
+                        } 
+                }
+        }
+        *dstptr = result;
+        if (inexact) {
+                if (Is_inexacttrap_enabled()) return(INEXACTEXCEPTION);
+                else Set_inexactflag();
+        }
+        return(NOEXCEPTION);
+} 
+
+/*
+ *  Double Floating-point Round to Integer
+ */
+
+/*ARGSUSED*/
+int
+dbl_frnd(
+        dbl_floating_point *srcptr,
+        unsigned int *nullptr,
+        dbl_floating_point *dstptr,
+        unsigned int *status)
+{
+        register unsigned int srcp1, srcp2, resultp1, resultp2;
+        register int src_exponent;
+        register boolean inexact = FALSE;
+
+        Dbl_copyfromptr(srcptr,srcp1,srcp2);
+        /*
+         * check source operand for NaN or infinity
+         */
+        if ((src_exponent = Dbl_exponent(srcp1)) == DBL_INFINITY_EXPONENT) {
+                /*
+                 * is signaling NaN?
+                 */
+                if (Dbl_isone_signaling(srcp1)) {
+                        /* trap if INVALIDTRAP enabled */
+                        if (Is_invalidtrap_enabled()) return(INVALIDEXCEPTION);
+                        /* make NaN quiet */
+                        Set_invalidflag();
+                        Dbl_set_quiet(srcp1);
+                }
+                /*
+                 * return quiet NaN or infinity
+                 */
+                Dbl_copytoptr(srcp1,srcp2,dstptr);
+                return(NOEXCEPTION);
+        }
+        /* 
+         * Need to round?
+         */
+        if ((src_exponent -= DBL_BIAS) >= DBL_P - 1) {
+                Dbl_copytoptr(srcp1,srcp2,dstptr);
+                return(NOEXCEPTION);
+        }
+        /*
+         * Generate result
+         */
+        if (src_exponent >= 0) {
+                Dbl_clear_exponent_set_hidden(srcp1);
+                resultp1 = srcp1;
+                resultp2 = srcp2;
+                Dbl_rightshift(resultp1,resultp2,(DBL_P-1) - (src_exponent));
+                /* check for inexact */
+                if (Dbl_isinexact_to_fix(srcp1,srcp2,src_exponent)) {
+                        inexact = TRUE;
+                        /*  round result  */
+                        switch (Rounding_mode()) {
+                        case ROUNDPLUS:
+                             if (Dbl_iszero_sign(srcp1)) 
+                                Dbl_increment(resultp1,resultp2);
+                             break;
+                        case ROUNDMINUS:
+                             if (Dbl_isone_sign(srcp1)) 
+                                Dbl_increment(resultp1,resultp2);
+                             break;
+                        case ROUNDNEAREST:
+                             if (Dbl_isone_roundbit(srcp1,srcp2,src_exponent))
+                              if (Dbl_isone_stickybit(srcp1,srcp2,src_exponent) 
+                                  || (Dbl_isone_lowmantissap2(resultp2))) 
+                                        Dbl_increment(resultp1,resultp2);
+                        } 
+                }
+                Dbl_leftshift(resultp1,resultp2,(DBL_P-1) - (src_exponent));
+                if (Dbl_isone_hiddenoverflow(resultp1))
+                        Dbl_set_exponent(resultp1,src_exponent + (DBL_BIAS+1));
+                else Dbl_set_exponent(resultp1,src_exponent + DBL_BIAS);
+        }
+        else {
+                resultp1 = srcp1;  /* set sign */
+                Dbl_setzero_exponentmantissa(resultp1,resultp2);
+                /* check for inexact */
+                if (Dbl_isnotzero_exponentmantissa(srcp1,srcp2)) {
+                        inexact = TRUE;
+                        /*  round result  */
+                        switch (Rounding_mode()) {
+                        case ROUNDPLUS:
+                             if (Dbl_iszero_sign(srcp1)) 
+                                Dbl_set_exponent(resultp1,DBL_BIAS);
+                             break;
+                        case ROUNDMINUS:
+                             if (Dbl_isone_sign(srcp1)) 
+                                Dbl_set_exponent(resultp1,DBL_BIAS);
+                             break;
+                        case ROUNDNEAREST:
+                             if (src_exponent == -1)
+                                if (Dbl_isnotzero_mantissa(srcp1,srcp2))
+                                   Dbl_set_exponent(resultp1,DBL_BIAS);
+                        } 
+                }
+        }
+        Dbl_copytoptr(resultp1,resultp2,dstptr);
+        if (inexact) {
+                if (Is_inexacttrap_enabled()) return(INEXACTEXCEPTION);
+                else Set_inexactflag();
+        }
+        return(NOEXCEPTION);
+}