File:  [gforth] / gforth / arch / m68k / machine.h
Revision 1.15: download - view: text, annotated - select for diffs
Mon Jan 20 17:07:38 2003 UTC (21 years, 2 months ago) by anton
Branches: MAIN
CVS tags: HEAD
undid changes to copyright notices

    1: /* This is the machine-specific part for the 68000 and family
    2: 
    3:   Copyright (C) 1995,1996,1997,1998,2000 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., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   20: */
   21: 
   22: #ifndef THREADING_SCHEME
   23: #define THREADING_SCHEME 3
   24: #endif
   25: 
   26: /* define this if the processor cannot exploit instruction-level
   27:    parallelism (no pipelining or too few registers) */
   28: #define CISC_NEXT
   29: 
   30: #if !defined USE_NO_TOS && !defined USE_TOS
   31: #define USE_TOS
   32: #endif
   33: 
   34: #include "../generic/machine.h"
   35: #include <sys/types.h>
   36: 
   37: /* Clearing the whole cache is a bit drastic, but this is the only
   38:  *    cache control available on the apollo and NeXT
   39:  */
   40: #if defined(apollo)
   41: #  define FLUSH_ICACHE(addr,size)    cache_$clear()
   42: #elif defined(NeXT)
   43: #  define FLUSH_ICACHE(addr,size)     asm("trap #2");
   44: #elif defined(hpux)
   45: #  include <sys/cache.h>
   46: #  define FLUSH_ICACHE(addr,size) cachectl(CC_IPURGE,(addr),(size))
   47: #elif defined(linux)
   48: #include <asm/cachectl.h>
   49: extern int cacheflush(void *, int, int, size_t);
   50: #define FLUSH_ICACHE(addr,size) \
   51:   cacheflush(addr, FLUSH_SCOPE_LINE, FLUSH_CACHE_INSN, (size_t)(size) + 15)
   52: #elif defined(amigaos)
   53: #  define FLUSH_ICACHE(addr,size) \
   54:   asm(" move.l a6,-(sp); \
   55:         move.l _SysBase,a6; \
   56:         jsr -636(a6); \
   57:         move.l (sp)+,a6; \
   58:   ")
   59: #else
   60: #  warning no FLUSH_ICACHE defined.  Dynamic native code generation disabled.
   61: #  warning CODE words will not work.
   62: #endif
   63: 
   64: #ifdef FORCE_REG /* highly recommended */
   65: #if defined(amigaos)
   66: #  define IPREG asm("%a6")
   67: #else
   68: #  define IPREG asm("%a5")
   69: #endif
   70: #define SPREG asm("%a4")
   71: #define RPREG asm("%a3")
   72: #define CFAREG asm("%a2")
   73: #define TOSREG asm("%d3")
   74: #define LPREG asm("%d2")
   75: #endif

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