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, 138 insertions, 0 deletions

diff --git a/arch/mips/math-emu/ieee754.c b/arch/mips/math-emu/ieee754.c
new file mode 100644
index 000000000000..f0a364adbf34
--- /dev/null
+++ b/arch/mips/math-emu/ieee754.c
@@ -0,0 +1,138 @@
+/* ieee754 floating point arithmetic
+ * single and double precision
+ *
+ * BUGS
+ * not much dp done
+ * doesn't generate IEEE754_INEXACT
+ *
+ */
+/*
+ * MIPS floating point support
+ * Copyright (C) 1994-2000 Algorithmics Ltd.
+ * http://www.algor.co.uk
+ *
+ * ########################################################################
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope 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.
+ *
+ * ########################################################################
+ */
+
+
+#include "ieee754int.h"
+
+#define DP_EBIAS        1023
+#define DP_EMIN         (-1022)
+#define DP_EMAX         1023
+
+#define SP_EBIAS        127
+#define SP_EMIN         (-126)
+#define SP_EMAX         127
+
+/* indexed by class */
+const char *const ieee754_cname[] = {
+        "Normal",
+        "Zero",
+        "Denormal",
+        "Infinity",
+        "QNaN",
+        "SNaN",
+};
+
+/* the control status register
+*/
+struct ieee754_csr ieee754_csr;
+
+/* special constants
+*/
+
+
+#if (defined(BYTE_ORDER) && BYTE_ORDER == LITTLE_ENDIAN) || defined(__MIPSEL__)
+#define SPSTR(s,b,m) {m,b,s}
+#define DPSTR(s,b,mh,ml) {ml,mh,b,s}
+#endif
+
+#ifdef __MIPSEB__
+#define SPSTR(s,b,m) {s,b,m}
+#define DPSTR(s,b,mh,ml) {s,b,mh,ml}
+#endif
+
+const struct ieee754dp_konst __ieee754dp_spcvals[] = {
+        DPSTR(0, DP_EMIN - 1 + DP_EBIAS, 0, 0), /* + zero   */
+        DPSTR(1, DP_EMIN - 1 + DP_EBIAS, 0, 0), /* - zero   */
+        DPSTR(0, DP_EBIAS, 0, 0),       /* + 1.0   */
+        DPSTR(1, DP_EBIAS, 0, 0),       /* - 1.0   */
+        DPSTR(0, 3 + DP_EBIAS, 0x40000, 0),     /* + 10.0   */
+        DPSTR(1, 3 + DP_EBIAS, 0x40000, 0),     /* - 10.0   */
+        DPSTR(0, DP_EMAX + 1 + DP_EBIAS, 0, 0), /* + infinity */
+        DPSTR(1, DP_EMAX + 1 + DP_EBIAS, 0, 0), /* - infinity */
+        DPSTR(0,DP_EMAX+1+DP_EBIAS,0x7FFFF,0xFFFFFFFF), /* + indef quiet Nan */
+        DPSTR(0, DP_EMAX + DP_EBIAS, 0xFFFFF, 0xFFFFFFFF),      /* + max */
+        DPSTR(1, DP_EMAX + DP_EBIAS, 0xFFFFF, 0xFFFFFFFF),      /* - max */
+        DPSTR(0, DP_EMIN + DP_EBIAS, 0, 0),     /* + min normal */
+        DPSTR(1, DP_EMIN + DP_EBIAS, 0, 0),     /* - min normal */
+        DPSTR(0, DP_EMIN - 1 + DP_EBIAS, 0, 1), /* + min denormal */
+        DPSTR(1, DP_EMIN - 1 + DP_EBIAS, 0, 1), /* - min denormal */
+        DPSTR(0, 31 + DP_EBIAS, 0, 0),  /* + 1.0e31 */
+        DPSTR(0, 63 + DP_EBIAS, 0, 0),  /* + 1.0e63 */
+};
+
+const struct ieee754sp_konst __ieee754sp_spcvals[] = {
+        SPSTR(0, SP_EMIN - 1 + SP_EBIAS, 0),    /* + zero   */
+        SPSTR(1, SP_EMIN - 1 + SP_EBIAS, 0),    /* - zero   */
+        SPSTR(0, SP_EBIAS, 0),  /* + 1.0   */
+        SPSTR(1, SP_EBIAS, 0),  /* - 1.0   */
+        SPSTR(0, 3 + SP_EBIAS, 0x200000),       /* + 10.0   */
+        SPSTR(1, 3 + SP_EBIAS, 0x200000),       /* - 10.0   */
+        SPSTR(0, SP_EMAX + 1 + SP_EBIAS, 0),    /* + infinity */
+        SPSTR(1, SP_EMAX + 1 + SP_EBIAS, 0),    /* - infinity */
+        SPSTR(0,SP_EMAX+1+SP_EBIAS,0x3FFFFF),     /* + indef quiet Nan  */
+        SPSTR(0, SP_EMAX + SP_EBIAS, 0x7FFFFF), /* + max normal */
+        SPSTR(1, SP_EMAX + SP_EBIAS, 0x7FFFFF), /* - max normal */
+        SPSTR(0, SP_EMIN + SP_EBIAS, 0),        /* + min normal */
+        SPSTR(1, SP_EMIN + SP_EBIAS, 0),        /* - min normal */
+        SPSTR(0, SP_EMIN - 1 + SP_EBIAS, 1),    /* + min denormal */
+        SPSTR(1, SP_EMIN - 1 + SP_EBIAS, 1),    /* - min denormal */
+        SPSTR(0, 31 + SP_EBIAS, 0),     /* + 1.0e31 */
+        SPSTR(0, 63 + SP_EBIAS, 0),     /* + 1.0e63 */
+};
+
+
+int ieee754si_xcpt(int r, const char *op, ...)
+{
+        struct ieee754xctx ax;
+
+        if (!TSTX())
+                return r;
+        ax.op = op;
+        ax.rt = IEEE754_RT_SI;
+        ax.rv.si = r;
+        va_start(ax.ap, op);
+        ieee754_xcpt(&ax);
+        return ax.rv.si;
+}
+
+s64 ieee754di_xcpt(s64 r, const char *op, ...)
+{
+        struct ieee754xctx ax;
+
+        if (!TSTX())
+                return r;
+        ax.op = op;
+        ax.rt = IEEE754_RT_DI;
+        ax.rv.di = r;
+        va_start(ax.ap, op);
+        ieee754_xcpt(&ax);
+        return ax.rv.di;
+}