old-cross-binutils/sim/ppc/vm_n.h

/*  This file is part of the program psim.

    Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>

    This program 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    */


#ifndef N
#error "N must be #defined"
#endif

#undef unsigned_N
#define unsigned_N XCONCAT2(unsigned_,N)
#undef T2H_N
#define T2H_N XCONCAT2(T2H_,N)
#undef H2T_N
#define H2T_N XCONCAT2(H2T_,N)


INLINE_VM unsigned_N
XCONCAT2(vm_data_map_read_,N)(vm_data_map *map,
			      unsigned_word ea,
			      cpu *processor,
			      unsigned_word cia)
{
  if ((ea & (sizeof(unsigned_N)-1)) == 0) {
    unsigned ra = vm_real_data_addr(map, ea, 1/*is-read*/, processor, cia);
    unsigned_N val = XCONCAT2(core_map_read_,N)(map->read, ra, processor, cia);
    if (WITH_MON & MONITOR_LOAD_STORE_UNIT)
      mon_read(ea, ra, sizeof(unsigned_N), processor, cia);
    TRACE(trace_load_store, ("load cia=0x%x ea=0x%x N=%d val=0x%x\n",
			     cia, ea, sizeof(unsigned_N), val));
    return val;
  }
  else {
    switch (CURRENT_ALIGNMENT) {
    case STRICT_ALIGNMENT:
      alignment_interrupt(processor, cia, ea);
      return 0;
    case NONSTRICT_ALIGNMENT:
      {
	unsigned_N val;
	if (vm_data_map_read_buffer(map, &val, ea, sizeof(unsigned_N))
	    != sizeof(unsigned_N))
	  alignment_interrupt(processor, cia, ea);
	val = T2H_N(val);
	if (WITH_MON & MONITOR_LOAD_STORE_UNIT) {
	  /* YUCK */
	  unsigned ra = vm_real_data_addr(map, ea, 1, processor, cia);
	  mon_read(ea, ra, sizeof(unsigned_N), processor, cia);
	}
	TRACE(trace_load_store, ("load cia=0x%x ea=0x%x N=%d data=0x%x\n",
				 cia, ea, sizeof(unsigned_N), val));
	return val;
      }
    default:
      error("unknown alignment support\n");
      return 0;
    }
  }
}

INLINE_VM void
XCONCAT2(vm_data_map_write_,N)(vm_data_map *map,
			       unsigned_word ea,
			       unsigned_N val,
			       cpu *processor,
			       unsigned_word cia)
{
  if ((ea & (sizeof(unsigned_N)-1)) == 0) {
    unsigned ra = vm_real_data_addr(map, ea, 0/*is-read?*/, processor, cia);
    XCONCAT2(core_map_write_,N)(map->write, ra, val, processor, cia);
    if (WITH_MON & MONITOR_LOAD_STORE_UNIT)
      mon_write(ea, ra, sizeof(unsigned_N), processor, cia);
    TRACE(trace_load_store, ("store cia=0x%x ea=0x%x N=%d val=0x%x\n",
			     cia, ea, sizeof(unsigned_N), val));
  }
  else {
    switch (CURRENT_ALIGNMENT) {
    case STRICT_ALIGNMENT:
      alignment_interrupt(processor, cia, ea);
      break;
    case NONSTRICT_ALIGNMENT:
      {
	unsigned_N data = H2T_N(val);
        if (vm_data_map_write_buffer(map, &data, ea, sizeof(unsigned_N), 0)
	    != sizeof(unsigned_N))
          alignment_interrupt(processor, cia, ea);
	if (WITH_MON & MONITOR_LOAD_STORE_UNIT) {
	  /* YUCK */
	  unsigned ra = vm_real_data_addr(map, ea, 1, processor, cia);
	  mon_write(ea, ra, sizeof(unsigned_N), processor, cia);
	}
	TRACE(trace_load_store, ("store cia=0x%x ea=0x%x N=%d val=0x%x\n",
				 cia, ea, sizeof(unsigned_N), val));
      }
      break;
    default:
      error("unknown alignment support\n");
    }
  }
}