diff --git a/include/asm-v850/sim.h b/include/asm-v850/sim.h
new file mode 100644
index 0000000..10236ab
--- /dev/null
+++ b/include/asm-v850/sim.h
@@ -0,0 +1,52 @@
+/*
+ * include/asm-v850/sim.h -- Machine-dependent defs for GDB v850e simulator
+ *
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#ifndef __V850_SIM_H__
+#define __V850_SIM_H__
+
+
+#define CPU_ARCH		"v850e"
+#define CPU_MODEL		"v850e"
+#define CPU_MODEL_LONG		"NEC V850E"
+#define PLATFORM		"gdb/v850e"
+#define PLATFORM_LONG		"GDB V850E simulator"
+
+
+/* We use a weird value for RAM, not just 0, for testing purposes.
+   These must match the values used in the linker script.  */
+#define RAM_ADDR		0x8F000000
+#define RAM_SIZE		0x03000000
+
+
+/* For <asm/page.h> */
+#define PAGE_OFFSET 		RAM_ADDR
+
+
+/* For <asm/entry.h> */
+/* `R0 RAM', used for a few miscellaneous variables that must be
+   accessible using a load instruction relative to R0.  On real
+   processors, this usually is on-chip RAM, but here we just
+   choose an arbitrary address that meets the above constraint.  */
+#define R0_RAM_ADDR		0xFFFFF000
+
+
+/* For <asm/param.h> */
+#ifndef HZ
+#define HZ			24	/* Minimum supported frequency.  */
+#endif
+
+/* For <asm/irq.h> */
+#define NUM_CPU_IRQS		6
+
+
+#endif /* __V850_SIM_H__ */