File:  [gforth] / gforth / Attic / cache.c
Revision 1.3: download - view: text, annotated - select for diffs
Tue Nov 7 18:06:33 1995 UTC (24 years 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 ~~

/* cache flushing for the HP-PA architecture

  Copyright (C) 1995 Free Software Foundation, Inc.

  This file is part of Gforth.

  Gforth is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version 2
  of the License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

void cacheflush(void * address, int size, int linewidth)
{
  int i;

  address=(void *)((int)address & (-linewidth));

  for(i=1-linewidth; i<size; i+=linewidth)
    asm volatile("fdc (%0)\n\t"
		 "sync\n\t"
		 "fic,m %1(%0)\n\t"
		 "sync" : : "r" (address), "r" (linewidth) : "memory" );
}

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