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-rw-r--r--StdLib/LibC/Main/x86flt_rounds.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/StdLib/LibC/Main/x86flt_rounds.c b/StdLib/LibC/Main/x86flt_rounds.c
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index 0000000000..d0478e2c1b
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+++ b/StdLib/LibC/Main/x86flt_rounds.c
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+/** @file
+ Return the current FPU rounding mode.
+
+ Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials are licensed and made available under
+ the terms and conditions of the BSD License that accompanies this distribution.
+ The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+**/
+
+extern int internal_FPU_rmode( void );
+
+static INT8 rmode[] = { 1, 3, 2, 0 };
+
+int
+EFIAPI
+__flt_rounds ( void )
+{
+ return rmode[ internal_FPU_rmode() ];
+}