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45 lines
1.7 KiB
45 lines
1.7 KiB
16 years ago
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/*
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* Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_SH4_SH4_H
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#define AVCODEC_SH4_SH4_H
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#ifdef __SH4__
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# define fp_single_enter(fpscr) \
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do { \
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__asm__ volatile ("sts fpscr, %0 \n\t" \
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"and %1, %0 \n\t" \
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"lds %0, fpscr \n\t" \
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: "=&r"(fpscr) : "r"(~(1<<19))); \
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} while (0)
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# define fp_single_leave(fpscr) \
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do { \
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__asm__ volatile ("or %1, %0 \n\t" \
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"lds %0, fpscr \n\t" \
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: "=&r"(fpscr) : "r"(1<<19)); \
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} while (0)
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#else
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# define fp_single_enter(fpscr) ((void)fpscr)
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# define fp_single_leave(fpscr)
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#endif
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#endif /* AVCODEC_SH4_SH4_H */
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