File:  [gforth] / gforth / Attic / cache.c
Revision 1.3: download - view: text, annotated - select for diffs
Tue Nov 7 18:06:33 1995 UTC (25 years, 11 months ago) by anton
Branches: MAIN
CVS tags: v0-3-0, v0-2-1, v0-2-0, gforth-0_1beta, HEAD
added copyright headers
changes to loadfilename & co. to make savesystem transparent to
 assertions and ~~

    1: /* cache flushing for the HP-PA architecture
    2: 
    3:   Copyright (C) 1995 Free Software Foundation, Inc.
    4: 
    5:   This file is part of Gforth.
    6: 
    7:   Gforth is free software; you can redistribute it and/or
    8:   modify it under the terms of the GNU General Public License
    9:   as published by the Free Software Foundation; either version 2
   10:   of the License, or (at your option) any later version.
   11: 
   12:   This program is distributed in the hope that it will be useful,
   13:   but WITHOUT ANY WARRANTY; without even the implied warranty of
   14:   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15:   GNU General Public License for more details.
   16: 
   17:   You should have received a copy of the GNU General Public License
   18:   along with this program; if not, write to the Free Software
   19:   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   20: */
   21: 
   22: void cacheflush(void * address, int size, int linewidth)
   23: {
   24:   int i;
   25: 
   26:   address=(void *)((int)address & (-linewidth));
   27: 
   28:   for(i=1-linewidth; i<size; i+=linewidth)
   29:     asm volatile("fdc (%0)\n\t"
   30: 		 "sync\n\t"
   31: 		 "fic,m %1(%0)\n\t"
   32: 		 "sync" : : "r" (address), "r" (linewidth) : "memory" );
   33: }

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