diff -urpN src/gdb/spu-tdep.c dev/gdb/spu-tdep.c
--- src/gdb/spu-tdep.c	2007-06-18 05:36:44.000000000 +0200
+++ dev/gdb/spu-tdep.c	2007-08-08 08:39:41.000000000 +0200
@@ -324,6 +324,47 @@ spu_register_reggroup_p (struct gdbarch 
   return default_register_reggroup_p (gdbarch, regnum, group);
 }
 
+/* Address conversion.  */
+
+static void
+spu_address_to_pointer (struct type *type, gdb_byte *buf, CORE_ADDR addr)
+{
+  store_unsigned_integer (buf, TYPE_LENGTH (type), addr);
+}
+
+static CORE_ADDR
+spu_pointer_to_address (struct type *type, const gdb_byte *buf)
+{
+  ULONGEST addr = extract_unsigned_integer (buf, TYPE_LENGTH (type));
+  ULONGEST lslr = SPU_LS_SIZE - 1; /* Hard-wired LS size.  */
+
+  if (target_has_registers && target_has_stack && target_has_memory)
+    {
+      struct frame_info *frame = get_selected_frame (NULL);
+      lslr = get_frame_register_unsigned (frame, SPU_LSLR_REGNUM);
+    }
+
+  return addr & lslr;
+}
+
+static CORE_ADDR
+spu_integer_to_address (struct gdbarch *gdbarch,
+			struct type *type, const gdb_byte *buf)
+{
+  ULONGEST addr = unpack_long (type, buf);
+  ULONGEST lslr = SPU_LS_SIZE - 1; /* Hard-wired LS size.  */
+
+  if (target_has_registers && target_has_stack && target_has_memory
+      /* FIXME: Currently needed for dwarf2_read_address to work.  */
+      && type != builtin_type_uint32)
+    {
+      struct frame_info *frame = get_selected_frame (NULL);
+      lslr = get_frame_register_unsigned (frame, SPU_LSLR_REGNUM);
+    }
+
+  return addr & lslr;
+}
+
 
 /* Decoding SPU instructions.  */
 
@@ -2008,6 +2049,11 @@ spu_gdbarch_init (struct gdbarch_info in
   set_gdbarch_double_format (gdbarch, floatformats_ieee_double);
   set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
 
+  /* Address conversion.  */
+  set_gdbarch_address_to_pointer (gdbarch, spu_address_to_pointer);
+  set_gdbarch_pointer_to_address (gdbarch, spu_pointer_to_address);
+  set_gdbarch_integer_to_address (gdbarch, spu_integer_to_address);
+
   /* Inferior function calls.  */
   set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
   set_gdbarch_frame_align (gdbarch, spu_frame_align);