1/*  This file is part of the program psim.
2
3    Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
4
5    This program is free software; you can redistribute it and/or modify
6    it under the terms of the GNU General Public License as published by
7    the Free Software Foundation; either version 2 of the License, or
8    (at your option) any later version.
9
10    This program is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13    GNU General Public License for more details.
14
15    You should have received a copy of the GNU General Public License
16    along with this program; if not, write to the Free Software
17    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18
19    */
20
21
22#ifndef N
23#error "N must be #defined"
24#endif
25
26/* NOTE: See end of file for #undef */
27#define unsigned_N XCONCAT2(unsigned_,N)
28#define T2H_N XCONCAT2(T2H_,N)
29#define H2T_N XCONCAT2(H2T_,N)
30#define vm_data_map_read_N XCONCAT2(vm_data_map_read_,N)
31#define vm_data_map_write_N XCONCAT2(vm_data_map_write_,N)
32
33
34INLINE_VM\
35(unsigned_N)
36vm_data_map_read_N(vm_data_map *map,
37		   unsigned_word ea,
38		   cpu *processor,
39		   unsigned_word cia)
40{
41  if ((ea & (sizeof(unsigned_N)-1)) == 0) {
42    unsigned ra = vm_real_data_addr(map, ea, 1/*is-read*/, processor, cia);
43    unsigned_N val;
44    if (WITH_XOR_ENDIAN)
45      ra ^= map->translation.xor[sizeof(unsigned_N) - 1];
46    val = XCONCAT2(core_map_read_,N)(map->read, ra, processor, cia);
47    if (WITH_MON & MONITOR_LOAD_STORE_UNIT)
48      mon_read(ea, ra, sizeof(unsigned_N), processor, cia);
49    TRACE(trace_load_store, ("load cia=0x%lx ea=0x%lx N=%ld val=0x%lx\n",
50			     (long)cia, (long)ea, (long)sizeof(unsigned_N), (long)val));
51    return val;
52  }
53  else {
54    switch (CURRENT_ALIGNMENT) {
55    case STRICT_ALIGNMENT:
56      alignment_interrupt(processor, cia, ea);
57      return 0;
58    case NONSTRICT_ALIGNMENT:
59      {
60	unsigned_N val;
61	if (vm_data_map_read_buffer(map, &val, ea, sizeof(unsigned_N), processor, cia)
62	    != sizeof(unsigned_N)) {
63	  cpu_error(processor, cia, "misaligned %d byte read to 0x%lx failed",
64		    sizeof(unsigned_N), (unsigned long)ea);
65	}
66	val = T2H_N(val);
67	if (WITH_MON & MONITOR_LOAD_STORE_UNIT) {
68	  /* YUCK */
69	  unsigned ra = vm_real_data_addr(map, ea, 1, processor, cia);
70	  mon_read(ea, ra, sizeof(unsigned_N), processor, cia);
71	}
72	TRACE(trace_load_store, ("load cia=0x%lx ea=0x%lx N=%ld data=0x%lx\n",
73				 (long)cia, (long)ea, (long)sizeof(unsigned_N), (long)val));
74	return val;
75      }
76    default:
77      error("internal error - vm_data_map_read_N - bad switch");
78      return 0;
79    }
80  }
81}
82
83INLINE_VM\
84(void)
85vm_data_map_write_N(vm_data_map *map,
86		    unsigned_word ea,
87		    unsigned_N val,
88		    cpu *processor,
89		    unsigned_word cia)
90{
91  if ((ea & (sizeof(unsigned_N)-1)) == 0) {
92    unsigned ra = vm_real_data_addr(map, ea, 0/*is-read?*/, processor, cia);
93    if (WITH_XOR_ENDIAN)
94      ra ^= map->translation.xor[sizeof(unsigned_N) - 1];
95    XCONCAT2(core_map_write_,N)(map->write, ra, val, processor, cia);
96    if (WITH_MON & MONITOR_LOAD_STORE_UNIT)
97      mon_write(ea, ra, sizeof(unsigned_N), processor, cia);
98    TRACE(trace_load_store, ("store cia=0x%lx ea=0x%lx N=%ld val=0x%lx\n",
99			     (long)cia, (long)ea, (long)sizeof(unsigned_N), (long)val));
100  }
101  else {
102    switch (CURRENT_ALIGNMENT) {
103    case STRICT_ALIGNMENT:
104      alignment_interrupt(processor, cia, ea);
105      break;
106    case NONSTRICT_ALIGNMENT:
107      {
108	unsigned_N data = H2T_N(val);
109	if (vm_data_map_write_buffer(map, &data, ea, sizeof(unsigned_N), 0, processor, cia)
110	    != sizeof(unsigned_N)) {
111	  cpu_error(processor, cia, "misaligned %d byte write to 0x%lx failed",
112		    sizeof(unsigned_N), (unsigned long)ea);
113	}
114	if (WITH_MON & MONITOR_LOAD_STORE_UNIT) {
115	  /* YUCK */
116	  unsigned ra = vm_real_data_addr(map, ea, 1, processor, cia);
117	  mon_write(ea, ra, sizeof(unsigned_N), processor, cia);
118	}
119	TRACE(trace_load_store, ("store cia=0x%lx ea=0x%lx N=%ld val=0x%lx\n",
120				 (long)cia, (long)ea, (long)sizeof(unsigned_N), (long)val));
121      }
122      break;
123    default:
124      error("internal error - vm_data_map_write_N - bad switch");
125    }
126  }
127}
128
129/* NOTE: see start of file for #define */
130#undef unsigned_N
131#undef T2H_N
132#undef H2T_N
133#undef vm_data_map_read_N
134#undef vm_data_map_write_N
135