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, 77 insertions, 0 deletions

diff --git a/arch/mips/math-emu/sp_fdp.c b/arch/mips/math-emu/sp_fdp.c
new file mode 100644
index 000000000000..4093723d1aa5
--- /dev/null
+++ b/arch/mips/math-emu/sp_fdp.c
@@ -0,0 +1,77 @@
+/* IEEE754 floating point arithmetic
+ * single precision
+ */
+/*
+ * 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 "ieee754sp.h"
+
+ieee754sp ieee754sp_fdp(ieee754dp x)
+{
+        COMPXDP;
+        ieee754sp nan;
+
+        EXPLODEXDP;
+
+        CLEARCX;
+
+        FLUSHXDP;
+
+        switch (xc) {
+        case IEEE754_CLASS_SNAN:
+                SETCX(IEEE754_INVALID_OPERATION);
+                return ieee754sp_nanxcpt(ieee754sp_indef(), "fdp");
+        case IEEE754_CLASS_QNAN:
+                nan = buildsp(xs, SP_EMAX + 1 + SP_EBIAS, (u32)
+                                (xm >> (DP_MBITS - SP_MBITS)));
+                if (!ieee754sp_isnan(nan))
+                        nan = ieee754sp_indef();
+                return ieee754sp_nanxcpt(nan, "fdp", x);
+        case IEEE754_CLASS_INF:
+                return ieee754sp_inf(xs);
+        case IEEE754_CLASS_ZERO:
+                return ieee754sp_zero(xs);
+        case IEEE754_CLASS_DNORM:
+                /* can't possibly be sp representable */
+                SETCX(IEEE754_UNDERFLOW);
+                SETCX(IEEE754_INEXACT);
+                if ((ieee754_csr.rm == IEEE754_RU && !xs) ||
+                                (ieee754_csr.rm == IEEE754_RD && xs))
+                        return ieee754sp_xcpt(ieee754sp_mind(xs), "fdp", x);
+                return ieee754sp_xcpt(ieee754sp_zero(xs), "fdp", x);
+        case IEEE754_CLASS_NORM:
+                break;
+        }
+
+        {
+                u32 rm;
+
+                /* convert from DP_MBITS to SP_MBITS+3 with sticky right shift
+                 */
+                rm = (xm >> (DP_MBITS - (SP_MBITS + 3))) |
+                    ((xm << (64 - (DP_MBITS - (SP_MBITS + 3)))) != 0);
+
+                SPNORMRET1(xs, xe, rm, "fdp", x);
+        }
+}