Initial creation of sourceware repositorygdb-4_18-branchpoint

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