about summary refs log tree commit diff
path: root/sysdeps/ia64/fpu/s_fabs.S
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/ia64/fpu/s_fabs.S')
-rw-r--r--sysdeps/ia64/fpu/s_fabs.S82
1 files changed, 82 insertions, 0 deletions
diff --git a/sysdeps/ia64/fpu/s_fabs.S b/sysdeps/ia64/fpu/s_fabs.S
new file mode 100644
index 0000000000..8bbdf9b084
--- /dev/null
+++ b/sysdeps/ia64/fpu/s_fabs.S
@@ -0,0 +1,82 @@
+.file "fabs.s"
+
+
+// Copyright (c) 2000 - 2003, Intel Corporation
+// All rights reserved.
+//
+// Contributed 2000 by the Intel Numerics Group, Intel Corporation
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+//
+// * The name of Intel Corporation may not be used to endorse or promote
+// products derived from this software without specific prior written
+// permission.
+
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS
+// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING
+// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Intel Corporation is the author of this code, and requests that all
+// problem reports or change requests be submitted to it directly at
+// http://www.intel.com/software/products/opensource/libraries/num.htm.
+//
+// History
+//==============================================================
+// 02/02/00 Initial version
+// 02/07/02 Added __libm_fabs entry point to test in case compiler inlines
+// 05/20/02 Cleaned up namespace and sf0 syntax
+// 02/10/03 Reordered header: .section, .global, .proc, .align
+//
+// API
+//==============================================================
+// double fabs  (double x)
+//
+// Overview of operation
+//==============================================================
+// returns absolute value of x
+
+// floating-point registers used: 1
+// f8, input
+
+.section .text
+.global __libm_fabs#
+
+.proc __libm_fabs#
+__libm_fabs:
+.endp __libm_fabs#
+
+GLOBAL_IEEE754_ENTRY(fabs)
+
+// set invalid or denormal flags and take fault if
+// necessary
+
+{ .mfi
+      nop.m 999
+      fcmp.eq.unc.s0 p6,p7 = f8,f1
+      nop.i 999 ;;
+}
+
+{ .mfb
+      nop.m 999
+      fmerge.s       f8 = f0,f8
+      br.ret.sptk    b0 ;;
+}
+
+GLOBAL_IEEE754_END(fabs)