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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/openbios/libgcc/__negti2.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/openbios/libgcc/__negti2.c')
-rw-r--r--qemu/roms/openbios/libgcc/__negti2.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/qemu/roms/openbios/libgcc/__negti2.c b/qemu/roms/openbios/libgcc/__negti2.c
new file mode 100644
index 000000000..e97cd1228
--- /dev/null
+++ b/qemu/roms/openbios/libgcc/__negti2.c
@@ -0,0 +1,53 @@
+/* Extracted from gcc-3.4.1/gcc/config/mips/_tilibi.c */
+/* A few TImode functions needed for TFmode emulated arithmetic.
+ Copyright 2002, 2003 Free Software Foundation, Inc.
+ Contributed by Alexandre Oliva <aoliva@redhat.com>
+
+This file is part of GCC.
+
+GCC 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.
+
+GCC 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 GCC; see the file COPYING. If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include "libgcc.h"
+
+#if defined(__sparc__) || defined(__ppc__)
+#define LIBGCC2_WORDS_BIG_ENDIAN
+#endif
+
+typedef union
+{
+ struct TIstruct {
+#if defined(LIBGCC2_WORDS_BIG_ENDIAN)
+ DItype high, low;
+#else
+ DItype low, high;
+#endif
+ } s;
+ TItype ll;
+} TIunion;
+
+TItype
+__negti2 (TItype u)
+{
+ TIunion w;
+ TIunion uu;
+
+ uu.ll = u;
+
+ w.s.low = -uu.s.low;
+ w.s.high = -uu.s.high - ((UDItype) w.s.low > 0);
+
+ return w.ll;
+}