Moved from soft-fp/sysdeps/sparc/sparc64/s_scalbnl.c

1 files changed, 45 insertions, 0 deletions

diff --git a/sysdeps/sparc/sparc64/soft-fp/qp_sub.c b/sysdeps/sparc/sparc64/soft-fp/qp_sub.c
new file mode 100644
index 0000000000..9532f7b817
--- /dev/null
+++ b/sysdeps/sparc/sparc64/soft-fp/qp_sub.c
@@ -0,0 +1,45 @@
+/* Software floating-point emulation.
+   (*c) = (*a) - (*b)
+   Copyright (C) 1997,1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+void _Qp_sub(long double *c, const long double *a, const long double *b)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
+
+  FP_INIT_ROUNDMODE;
+  FP_UNPACK_QP(A, a);
+  FP_UNPACK_QP(B, b);
+  FP_SUB_Q(C, A, B);
+  FP_PACK_QP(c, C);
+  QP_HANDLE_EXCEPTIONS(__asm (
+	"ldd [%1], %%f52
+	 ldd [%1+8], %%f54
+	 ldd [%2], %%f56
+	 ldd [%2+8], %%f58
+	 fsubq %%f52, %%f56, %%f60
+	 std %%f60, [%0]
+	 std %%f62, [%0+8]
+	" : : "r" (c), "r" (a), "r" (b) : QP_CLOBBER));
+}