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, 328 insertions, 0 deletions

diff --git a/arch/parisc/math-emu/fcnvfxt.c b/arch/parisc/math-emu/fcnvfxt.c
new file mode 100644
index 000000000000..8b9010c4690e
--- /dev/null
+++ b/arch/parisc/math-emu/fcnvfxt.c
@@ -0,0 +1,328 @@
+/*
+ * 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/fcnvfxt.c             $Revision: 1.1 $
+ *
+ *  Purpose:
+ *      Single Floating-point to Single Fixed-point /w truncated result
+ *      Single Floating-point to Double Fixed-point /w truncated result
+ *      Double Floating-point to Single Fixed-point /w truncated result
+ *      Double Floating-point to Double Fixed-point /w truncated result
+ *
+ *  External Interfaces:
+ *      dbl_to_dbl_fcnvfxt(srcptr,nullptr,dstptr,status)
+ *      dbl_to_sgl_fcnvfxt(srcptr,nullptr,dstptr,status)
+ *      sgl_to_dbl_fcnvfxt(srcptr,nullptr,dstptr,status)
+ *      sgl_to_sgl_fcnvfxt(srcptr,nullptr,dstptr,status)
+ *
+ *  Internal Interfaces:
+ *
+ *  Theory:
+ *      <<please update with a overview of the operation of this file>>
+ *
+ * END_DESC
+*/
+
+
+#include "float.h"
+#include "sgl_float.h"
+#include "dbl_float.h"
+#include "cnv_float.h"
+
+/*
+ *  Convert single floating-point to single fixed-point format
+ *  with truncated result
+ */
+/*ARGSUSED*/
+int
+sgl_to_sgl_fcnvfxt(
+                    sgl_floating_point *srcptr,
+                    unsigned int *nullptr,
+                    int *dstptr,
+                    unsigned int *status)
+{
+        register unsigned int src, temp;
+        register int src_exponent, result;
+
+        src = *srcptr;
+        src_exponent = Sgl_exponent(src) - SGL_BIAS;
+
+        /* 
+         * Test for overflow
+         */
+        if (src_exponent > SGL_FX_MAX_EXP) {
+                /* check for MININT */
+                if ((src_exponent > SGL_FX_MAX_EXP + 1) || 
+                Sgl_isnotzero_mantissa(src) || Sgl_iszero_sign(src)) {
+                        if (Sgl_iszero_sign(src)) result = 0x7fffffff;
+                        else result = 0x80000000; 
+
+                        if (Is_invalidtrap_enabled()) {
+                            return(INVALIDEXCEPTION);
+                        }
+                        Set_invalidflag();
+                        *dstptr = result;
+                        return(NOEXCEPTION);
+                }
+        }
+        /*
+         * Generate result
+         */
+        if (src_exponent >= 0) {
+                temp = src;
+                Sgl_clear_signexponent_set_hidden(temp);
+                Int_from_sgl_mantissa(temp,src_exponent);
+                if (Sgl_isone_sign(src))  result = -Sgl_all(temp);
+                else result = Sgl_all(temp);
+                *dstptr = result;
+
+                /* check for inexact */
+                if (Sgl_isinexact_to_fix(src,src_exponent)) {
+                        if (Is_inexacttrap_enabled()) return(INEXACTEXCEPTION);
+                        else Set_inexactflag();
+                }
+        }
+        else {
+                *dstptr = 0;
+
+                /* check for inexact */
+                if (Sgl_isnotzero_exponentmantissa(src)) {
+                        if (Is_inexacttrap_enabled()) return(INEXACTEXCEPTION);
+                        else Set_inexactflag();
+                }
+        }
+        return(NOEXCEPTION);
+}
+
+/*
+ *  Single Floating-point to Double Fixed-point 
+ */
+/*ARGSUSED*/
+int
+sgl_to_dbl_fcnvfxt(
+                    sgl_floating_point *srcptr,
+                    unsigned int *nullptr,
+                    dbl_integer *dstptr,
+                    unsigned int *status)
+{
+        register int src_exponent, resultp1;
+        register unsigned int src, temp, resultp2;
+
+        src = *srcptr;
+        src_exponent = Sgl_exponent(src) - SGL_BIAS;
+
+        /* 
+         * Test for overflow
+         */
+        if (src_exponent > DBL_FX_MAX_EXP) {
+                /* check for MININT */
+                if ((src_exponent > DBL_FX_MAX_EXP + 1) || 
+                Sgl_isnotzero_mantissa(src) || Sgl_iszero_sign(src)) {
+                        if (Sgl_iszero_sign(src)) {
+                              resultp1 = 0x7fffffff;
+                              resultp2 = 0xffffffff;
+                        }
+                        else {
+                            resultp1 = 0x80000000; 
+                            resultp2 = 0;
+                        }
+                        if (Is_invalidtrap_enabled()) {
+                            return(INVALIDEXCEPTION);
+                        }
+                        Set_invalidflag();
+                        Dint_copytoptr(resultp1,resultp2,dstptr);
+                        return(NOEXCEPTION);
+                }
+                Dint_set_minint(resultp1,resultp2);
+                Dint_copytoptr(resultp1,resultp2,dstptr);
+                return(NOEXCEPTION);
+        }
+        /*
+         * Generate result
+         */
+        if (src_exponent >= 0) {
+                temp = src;
+                Sgl_clear_signexponent_set_hidden(temp);
+                Dint_from_sgl_mantissa(temp,src_exponent,resultp1,resultp2);
+                if (Sgl_isone_sign(src)) {
+                        Dint_setone_sign(resultp1,resultp2);
+                }
+                Dint_copytoptr(resultp1,resultp2,dstptr);
+
+                /* check for inexact */
+                if (Sgl_isinexact_to_fix(src,src_exponent)) {
+                        if (Is_inexacttrap_enabled()) return(INEXACTEXCEPTION);
+                        else Set_inexactflag();
+                }
+        }
+        else {
+                Dint_setzero(resultp1,resultp2);
+                Dint_copytoptr(resultp1,resultp2,dstptr);
+
+                /* check for inexact */
+                if (Sgl_isnotzero_exponentmantissa(src)) {
+                        if (Is_inexacttrap_enabled()) return(INEXACTEXCEPTION);
+                        else Set_inexactflag();
+                }
+        }
+        return(NOEXCEPTION);
+}
+
+/*
+ *  Double Floating-point to Single Fixed-point 
+ */
+/*ARGSUSED*/
+int
+dbl_to_sgl_fcnvfxt(
+                        dbl_floating_point *srcptr,
+                        unsigned int *nullptr,
+                        int *dstptr,
+                        unsigned int *status)
+{
+        register unsigned int srcp1, srcp2, tempp1, tempp2;
+        register int src_exponent, result;
+
+        Dbl_copyfromptr(srcptr,srcp1,srcp2);
+        src_exponent = Dbl_exponent(srcp1) - DBL_BIAS;
+
+        /* 
+         * Test for overflow
+         */
+        if (src_exponent > SGL_FX_MAX_EXP) {
+                /* check for MININT */
+                if (Dbl_isoverflow_to_int(src_exponent,srcp1,srcp2)) {
+                        if (Dbl_iszero_sign(srcp1)) result = 0x7fffffff;
+                        else result = 0x80000000; 
+
+                        if (Is_invalidtrap_enabled()) {
+                            return(INVALIDEXCEPTION);
+                        }
+                        Set_invalidflag();
+                        *dstptr = result;
+                        return(NOEXCEPTION);
+                }
+        }
+        /*
+         * Generate result
+         */
+        if (src_exponent >= 0) {
+                tempp1 = srcp1;
+                tempp2 = srcp2;
+                Dbl_clear_signexponent_set_hidden(tempp1);
+                Int_from_dbl_mantissa(tempp1,tempp2,src_exponent);
+                if (Dbl_isone_sign(srcp1) && (src_exponent <= SGL_FX_MAX_EXP))
+                        result = -Dbl_allp1(tempp1);
+                else result = Dbl_allp1(tempp1);
+                *dstptr = result;
+
+                /* check for inexact */
+                if (Dbl_isinexact_to_fix(srcp1,srcp2,src_exponent)) {
+                        if (Is_inexacttrap_enabled()) return(INEXACTEXCEPTION);
+                        else Set_inexactflag();
+                }
+        }
+        else {
+                *dstptr = 0;
+
+                /* check for inexact */
+                if (Dbl_isnotzero_exponentmantissa(srcp1,srcp2)) {
+                        if (Is_inexacttrap_enabled()) return(INEXACTEXCEPTION);
+                        else Set_inexactflag();
+                }
+        }
+        return(NOEXCEPTION);
+}
+
+/*
+ *  Double Floating-point to Double Fixed-point 
+ */
+/*ARGSUSED*/
+int
+dbl_to_dbl_fcnvfxt(
+                        dbl_floating_point *srcptr,
+                        unsigned int *nullptr,
+                        dbl_integer *dstptr,
+                        unsigned int *status)
+{
+        register int src_exponent, resultp1;
+        register unsigned int srcp1, srcp2, tempp1, tempp2, resultp2;
+
+        Dbl_copyfromptr(srcptr,srcp1,srcp2);
+        src_exponent = Dbl_exponent(srcp1) - DBL_BIAS;
+
+        /* 
+         * Test for overflow
+         */
+        if (src_exponent > DBL_FX_MAX_EXP) {
+                /* check for MININT */
+                if ((src_exponent > DBL_FX_MAX_EXP + 1) || 
+                Dbl_isnotzero_mantissa(srcp1,srcp2) || Dbl_iszero_sign(srcp1)) {
+                        if (Dbl_iszero_sign(srcp1)) {
+                              resultp1 = 0x7fffffff;
+                              resultp2 = 0xffffffff;
+                        }
+                        else {
+                            resultp1 = 0x80000000; 
+                            resultp2 = 0;
+                        }
+                        if (Is_invalidtrap_enabled()) {
+                            return(INVALIDEXCEPTION);
+                        }
+                        Set_invalidflag();
+                        Dint_copytoptr(resultp1,resultp2,dstptr);
+                        return(NOEXCEPTION);
+                }
+        }
+        /*
+         * Generate result
+         */
+        if (src_exponent >= 0) {
+                tempp1 = srcp1;
+                tempp2 = srcp2;
+                Dbl_clear_signexponent_set_hidden(tempp1);
+                Dint_from_dbl_mantissa(tempp1,tempp2,src_exponent,
+                resultp1,resultp2);
+                if (Dbl_isone_sign(srcp1)) {
+                        Dint_setone_sign(resultp1,resultp2);
+                }
+                Dint_copytoptr(resultp1,resultp2,dstptr);
+
+                /* check for inexact */
+                if (Dbl_isinexact_to_fix(srcp1,srcp2,src_exponent)) {
+                        if (Is_inexacttrap_enabled()) return(INEXACTEXCEPTION);
+                        else Set_inexactflag();
+                }
+        }
+        else {
+                Dint_setzero(resultp1,resultp2);
+                Dint_copytoptr(resultp1,resultp2,dstptr);
+
+                /* check for inexact */
+                if (Dbl_isnotzero_exponentmantissa(srcp1,srcp2)) {
+                        if (Is_inexacttrap_enabled()) return(INEXACTEXCEPTION);
+                        else Set_inexactflag();
+                }
+        }
+        return(NOEXCEPTION);
+}