55 lines
1.8 KiB
Diff
55 lines
1.8 KiB
Diff
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From 089f8816df1cbcb0519083f72f3fd51a5072bd9a Mon Sep 17 00:00:00 2001
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From: swcompiler <lc@wxiat.com>
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Date: Fri, 29 Nov 2024 17:18:04 +0800
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Subject: [PATCH 15/23] Sw64: Add get_rounding_mode
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---
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sysdeps/sw_64/fpu/get-rounding-mode.h | 35 +++++++++++++++++++++++++++
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1 file changed, 35 insertions(+)
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create mode 100644 sysdeps/sw_64/fpu/get-rounding-mode.h
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diff --git a/sysdeps/sw_64/fpu/get-rounding-mode.h b/sysdeps/sw_64/fpu/get-rounding-mode.h
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new file mode 100644
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index 00000000..d7fb29a2
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--- /dev/null
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+++ b/sysdeps/sw_64/fpu/get-rounding-mode.h
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@@ -0,0 +1,35 @@
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+/* Determine floating-point rounding mode within libc. Sw_64 version.
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+ Copyright (C) 2012-2023 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#ifndef SW_64_GET_ROUNDING_MODE_H
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+#define SW_64_GET_ROUNDING_MODE_H 1
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+
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+#include <fenv.h>
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+#include <fenv_libc.h>
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+
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+/* Return the floating-point rounding mode. */
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+
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+static inline int
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+get_rounding_mode (void)
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+{
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+ unsigned long fpcr;
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+ __asm__ __volatile__("excb; rfpcr %0" : "=f"(fpcr));
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+ return (fpcr >> FPCR_ROUND_SHIFT) & 3;
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+}
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+
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+#endif /* get-rounding-mode.h */
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--
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2.25.1
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