35 lines
943 B
C
Executable File
35 lines
943 B
C
Executable File
/* $Id: //BBN_Linux/Branch/Branch_for_Rel_TP_ASEAN_20161216/tclinux_phoenix/bootrom/bootram/include/asm/fp.h#1 $
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1998 by Ralf Baechle
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*/
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/*
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* Activate and deactive the floatingpoint accelerator.
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*/
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#define enable_cp1() \
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__asm__ __volatile__( \
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".set\tpush\n\t" \
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".set\tnoat\n\t" \
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".set\treorder\n\t" \
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"mfc0\t$1,$12\n\t" \
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"or\t$1,%0\n\t" \
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"mtc0\t$1,$12\n\t" \
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".set\tpop" \
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: : "r" (ST0_CU1));
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#define disable_cp1() \
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__asm__ __volatile__( \
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".set\tpush\n\t" \
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".set\tnoat\n\t" \
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".set\treorder\n\t" \
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"mfc0\t$1,$12\n\t" \
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"or\t$1,%0\n\t" \
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"xor\t$1,%0\n\t" \
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"mtc0\t$1,$12\n\t" \
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".set\tpop" \
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: : "r" (ST0_CU1));
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