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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:35:26 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:35:26 +0000
commitc906108c21474dfb4ed285bcc0ac6fe02cd400cc (patch)
treea0015aa5cedc19ccbab307251353a41722a3ae13 /sim/ppc/vm_n.h
parentcd946cff9ede3f30935803403f06f6ed30cad136 (diff)
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Initial creation of sourceware repositorygdb-4_18-branchpoint
Diffstat (limited to 'sim/ppc/vm_n.h')
-rw-r--r--sim/ppc/vm_n.h134
1 files changed, 134 insertions, 0 deletions
diff --git a/sim/ppc/vm_n.h b/sim/ppc/vm_n.h
new file mode 100644
index 0000000..9222ffa
--- /dev/null
+++ b/sim/ppc/vm_n.h
@@ -0,0 +1,134 @@
+/* This file is part of the program psim.
+
+ Copyright (C) 1994-1997, 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
+
+/* NOTE: See end of file for #undef */
+#define unsigned_N XCONCAT2(unsigned_,N)
+#define T2H_N XCONCAT2(T2H_,N)
+#define H2T_N XCONCAT2(H2T_,N)
+#define vm_data_map_read_N XCONCAT2(vm_data_map_read_,N)
+#define vm_data_map_write_N XCONCAT2(vm_data_map_write_,N)
+
+
+INLINE_VM\
+(unsigned_N)
+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;
+ if (WITH_XOR_ENDIAN)
+ ra ^= map->translation.xor[sizeof(unsigned_N) - 1];
+ 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%lx ea=0x%lx N=%ld val=0x%lx\n",
+ (long)cia, (long)ea, (long)sizeof(unsigned_N), (long)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), processor, cia)
+ != sizeof(unsigned_N)) {
+ cpu_error(processor, cia, "misaligned %d byte read to 0x%lx failed",
+ sizeof(unsigned_N), (unsigned long)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%lx ea=0x%lx N=%ld data=0x%lx\n",
+ (long)cia, (long)ea, (long)sizeof(unsigned_N), (long)val));
+ return val;
+ }
+ default:
+ error("internal error - vm_data_map_read_N - bad switch");
+ return 0;
+ }
+ }
+}
+
+INLINE_VM\
+(void)
+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);
+ if (WITH_XOR_ENDIAN)
+ ra ^= map->translation.xor[sizeof(unsigned_N) - 1];
+ 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%lx ea=0x%lx N=%ld val=0x%lx\n",
+ (long)cia, (long)ea, (long)sizeof(unsigned_N), (long)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, processor, cia)
+ != sizeof(unsigned_N)) {
+ cpu_error(processor, cia, "misaligned %d byte write to 0x%lx failed",
+ sizeof(unsigned_N), (unsigned long)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%lx ea=0x%lx N=%ld val=0x%lx\n",
+ (long)cia, (long)ea, (long)sizeof(unsigned_N), (long)val));
+ }
+ break;
+ default:
+ error("internal error - vm_data_map_write_N - bad switch");
+ }
+ }
+}
+
+/* NOTE: see start of file for #define */
+#undef unsigned_N
+#undef T2H_N
+#undef H2T_N
+#undef vm_data_map_read_N
+#undef vm_data_map_write_N