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/* $Id: fp.h,v 1.1 1998/07/16 19:10:04 ralf Exp $ * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1998 by Ralf Baechle */ /* * Activate and deactive the floatingpoint accelerator. */ #define enable_cp1() \ __asm__ __volatile__( \ ".set\tpush\n\t" \ ".set\tnoat\n\t" \ ".set\treorder\n\t" \ "mfc0\t$1,$12\n\t" \ "or\t$1,%0\n\t" \ "mtc0\t$1,$12\n\t" \ ".set\tpop" \ : : "r" (ST0_CU1)); #define disable_cp1() \ __asm__ __volatile__( \ ".set\tpush\n\t" \ ".set\tnoat\n\t" \ ".set\treorder\n\t" \ "mfc0\t$1,$12\n\t" \ "or\t$1,%0\n\t" \ "xor\t$1,%0\n\t" \ "mtc0\t$1,$12\n\t" \ ".set\tpop" \ : : "r" (ST0_CU1)); |