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authorAndreas Jaeger <aj@suse.de>2000-09-05 09:07:19 +0000
committerAndreas Jaeger <aj@suse.de>2000-09-05 09:07:19 +0000
commita9591af9e9ff0ecd0ae09214bd6e19157bff61d8 (patch)
tree550b41649c499b71688c6664435f64fd98992f99 /sysdeps/sparc/sparc64/soft-fp/qp_feq.c
parent584bbcdd2cc662d532024ca62db53413f6d05a15 (diff)
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Moved from soft-fp/sysdeps/sparc/sparc64/s_scalbnl.c
Diffstat (limited to 'sysdeps/sparc/sparc64/soft-fp/qp_feq.c')
-rw-r--r--sysdeps/sparc/sparc64/soft-fp/qp_feq.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc64/soft-fp/qp_feq.c b/sysdeps/sparc/sparc64/soft-fp/qp_feq.c
new file mode 100644
index 0000000000..1d32ec6fe7
--- /dev/null
+++ b/sysdeps/sparc/sparc64/soft-fp/qp_feq.c
@@ -0,0 +1,51 @@
+/* Software floating-point emulation.
+   Return 1 if (*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"
+
+int _Qp_feq(const long double *a, const long double *b)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A); FP_DECL_Q(B);
+  int r;
+
+  FP_INIT_ROUNDMODE;
+  FP_UNPACK_RAW_QP(A, a);
+  FP_UNPACK_RAW_QP(B, b);
+  FP_CMP_EQ_Q(r, A, B);
+  if (r && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B)))
+    FP_SET_EXCEPTION(FP_EX_INVALID);
+
+  QP_HANDLE_EXCEPTIONS(
+  	__asm (
+	"ldd [%0], %%f52
+	 ldd [%0+8], %%f54
+	 ldd [%1], %%f56
+	 ldd [%1+8], %%f58
+	 fcmpq %%fcc3, %%f52, %%f56
+	" : : "r" (a), "r" (b) : QP_CLOBBER_CC);
+	_FPU_GETCW(_fcw);
+	r = ((_fcw >> 36) & 3));
+
+  return !r;
+}