Changes from Andrew

1 files changed, 156 insertions, 0 deletions

diff --git a/sim/ppc/emul_bugapi.c b/sim/ppc/emul_bugapi.c
new file mode 100644
index 0000000..309869e
--- /dev/null
+++ b/sim/ppc/emul_bugapi.c
@@ -0,0 +1,156 @@
+/*  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 _EMUL_BUGAPI_C_
+#define _EMUL_BUGAPI_C_
+
+
+/* Note: this module is called via a table.  There is no benefit in
+   making it inline */
+
+#include "emul_generic.h"
+#include "emul_bugapi.h"
+
+/* Any starting address less than this is assumed to be an OEA program
+   rather than VEA.  */
+#ifndef OEA_START_ADDRESS
+#define OEA_START_ADDRESS 4096
+#endif
+
+#ifndef OEA_MEMORY_SIZE
+#define OEA_MEMORY_SIZE 0x100000
+#endif
+
+static os_emul_data *
+emul_bugapi_create(device *root,
+		   bfd *image,
+		   const char *name)
+{
+
+  /* check it really is for us */
+  if (name != NULL
+      && strcmp(name, "bugapi") != 0)
+    return NULL;
+  if (image != NULL
+      && bfd_get_start_address(image) > OEA_START_ADDRESS)
+    return NULL;
+
+  {
+    
+    const memory_size = OEA_MEMORY_SIZE;
+    const elf_binary = (image != NULL 
+			&& image->xvec->flavour == bfd_target_elf_flavour);
+    const little_endian = (image != NULL
+			   && !image->xvec->byteorder_big_p);
+    
+    { /* options */
+      device *options = device_tree_add_found(root, "/", "options");
+      device_add_integer_property(options,
+				  "smp",
+				  MAX_NR_PROCESSORS);
+      device_add_boolean_property(options,
+				  "little-endian?",
+				  little_endian);
+      device_add_string_property(options,
+				 "env",
+				 "operating");
+      device_add_boolean_property(options,
+				  "strict-alignment?",
+				  (WITH_ALIGNMENT == STRICT_ALIGNMENT
+				   || !image->xvec->byteorder_big_p));
+      device_add_boolean_property(options,
+				  "floating-point?",
+				  WITH_FLOATING_POINT);
+      device_add_string_property(options,
+				 "os-emul",
+				 "bugapi");
+    }
+    
+    /* hardware */
+    device_tree_add_found_uw_u_u(root, "/", "memory",
+				 0, memory_size, access_read_write_exec);
+    device_tree_add_found(root, "/", "iobus@0x400000");
+    device_tree_add_found(root, "/iobus", "console@0x000000,16");
+    device_tree_add_found(root, "/iobus", "halt@0x100000,4");
+    device_tree_add_found(root, "/iobus", "icu@0x200000,4");
+    
+    { /* initialization */
+      device *init = device_tree_add_found(root, "/", "init");
+      {
+	device *init_register = device_tree_add_found(init, "", "register");
+	device_add_integer_property(init_register,
+				    "pc",
+				    0);
+	device_add_integer_property(init_register,
+				    "sp",
+				    memory_size-16);
+	device_add_integer_property(init_register,
+				    "msr",
+				    (little_endian
+				     ? msr_little_endian_mode
+				     : 0));
+      }
+      {
+	device *init_stack = device_tree_add_found(init, "", "stack");
+	device_add_null_property(init_stack,
+				 (elf_binary
+				  ? "elf"
+				  : "aix"));
+      }
+      {
+	device *init_load_binary = device_tree_add_found(init, "",
+							"load-binary");
+	device_add_null_property(init_load_binary,
+				 bfd_get_filename(image));
+      }
+    }
+  }
+  
+  return (os_emul_data*)-1;
+}
+
+static void
+emul_bugapi_init(os_emul_data *emul_data,
+		 int nr_cpus)
+{
+  /* nothing happens here */
+}
+
+static int
+emul_bugapi_instruction_call(cpu *processor,
+			     unsigned_word cia,
+			     unsigned_word ra,
+			     os_emul_data *emul_data)
+{
+  error("emul_bugapi_instruction_call() not implemented\n");
+  return 1;
+}
+
+const os_emul emul_bugapi = {
+  "bugapi",
+  emul_bugapi_create,
+  emul_bugapi_init,
+  0, /*system_call*/
+  emul_bugapi_instruction_call,
+  0 /*data*/
+};
+
+#endif