diff --git a/include/gdb/ChangeLog b/include/gdb/ChangeLog
index 458fa7ddf..368f71968 100644
--- a/include/gdb/ChangeLog
+++ b/include/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2008-02-12  M Ranga Swami Reddy <MR.Swami.Reddy@nsc.com>
+
+	* sim-cr16.h: New file.
+
 2008-01-01  Daniel Jacobowitz  <dan@codesourcery.com>
 
 	Updated copyright notices for most files.
diff --git a/include/gdb/sim-cr16.h b/include/gdb/sim-cr16.h
new file mode 100644
index 000000000..9ea273175
--- /dev/null
+++ b/include/gdb/sim-cr16.h
@@ -0,0 +1,106 @@
+/* This file defines the interface between the cr16 simulator and gdb.
+
+   Copyright 2008 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   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 3 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, see <http://www.gnu.org/licenses/>.  */
+
+#if !defined (SIM_CR16_H)
+#define SIM_CR16_H
+
+#ifdef __cplusplus
+extern "C" { // }
+#endif
+
+enum
+  {
+    SIM_CR16_MEMORY_UNIFIED = 0x00000000,
+    SIM_CR16_MEMORY_INSN    = 0x10000000,
+    SIM_CR16_MEMORY_DATA    = 0x10000000,
+    SIM_CR16_MEMORY_DMAP    = 0x10000000,
+    SIM_CR16_MEMORY_IMAP    = 0x10000000
+  };
+
+extern unsigned long sim_cr16_translate_dmap_addr
+  (unsigned long offset,
+   int nr_bytes,
+   unsigned long *phys,
+   void *regcache,
+   unsigned long (*dmap_register) (void *regcache, int reg_nr));
+
+extern unsigned long sim_cr16_translate_imap_addr
+  (unsigned long offset,
+   int nr_bytes,
+   unsigned long *phys,
+   void *regcache,
+   unsigned long (*imap_register) (void *regcache, int reg_nr));
+
+extern unsigned long sim_cr16_translate_addr
+  (unsigned long vaddr,
+   int nr_bytes,
+   unsigned long *phys,
+   void *regcache,
+   unsigned long (*dmap_register) (void *regcache, int reg_nr),
+   unsigned long (*imap_register) (void *regcache, int reg_nr));
+
+
+/* The simulator makes use of the following register information. */
+
+enum sim_cr16_regs
+{
+  SIM_CR16_R0_REGNUM,
+  SIM_CR16_R1_REGNUM,
+  SIM_CR16_R2_REGNUM,
+  SIM_CR16_R3_REGNUM,
+  SIM_CR16_R4_REGNUM,
+  SIM_CR16_R5_REGNUM,
+  SIM_CR16_R6_REGNUM,
+  SIM_CR16_R7_REGNUM,
+  SIM_CR16_R8_REGNUM,
+  SIM_CR16_R9_REGNUM,
+  SIM_CR16_R10_REGNUM,
+  SIM_CR16_R11_REGNUM,
+  SIM_CR16_R12_REGNUM,
+  SIM_CR16_R13_REGNUM,
+  SIM_CR16_R14_REGNUM,
+  SIM_CR16_R15_REGNUM,
+
+  SIM_CR16_PC_REGNUM,
+  SIM_CR16_ISP_REGNUM,
+  SIM_CR16_USP_REGNUM,
+  SIM_CR16_INTBASE_REGNUM,
+  SIM_CR16_PSR_REGNUM,
+  SIM_CR16_CFG_REGNUM,
+  SIM_CR16_DBS_REGNUM,
+  SIM_CR16_DCR_REGNUM,
+  SIM_CR16_DSR_REGNUM,
+  SIM_CR16_CAR0_REGNUM,
+  SIM_CR16_CAR1_REGNUM
+};
+  
+enum
+{
+  SIM_CR16_NR_R_REGS = 16,
+  SIM_CR16_NR_A_REGS = 2,
+  SIM_CR16_NR_IMAP_REGS = 2,
+  SIM_CR16_NR_DMAP_REGS = 4,
+  SIM_CR16_NR_CR_REGS = 11
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif