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diff --git a/nuttx/arch/sim/src/up_internal.h b/nuttx/arch/sim/src/up_internal.h
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+++ b/nuttx/arch/sim/src/up_internal.h
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+/**************************************************************************
+ * up_internal.h
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name Gregory Nutt nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ **************************************************************************/
+
+#ifndef __ARCH_UP_INTERNAL_H
+#define __ARCH_UP_INTERNAL_H
+
+/**************************************************************************
+ * Included Files
+ **************************************************************************/
+
+#include <nuttx/irq.h>
+
+/**************************************************************************
+ * Public Definitions
+ **************************************************************************/
+
+/* Storage order: %ebx, $esi, %edi, %ebp, sp, and return PC */
+#ifdef __ASSEMBLY__
+# define JB_EBX (0*4)
+# define JB_ESI (1*4)
+# define JB_EDI (2*4)
+# define JB_EBP (3*4)
+# define JB_SP  (4*4)
+# define JB_PC  (5*4)
+#else
+# define JB_EBX (0)
+# define JB_ESI (1)
+# define JB_EDI (2)
+# define JB_EBP (3)
+# define JB_SP  (4)
+# define JB_PC  (5)
+#endif /* __ASSEMBLY__ */
+
+#define SIM_HEAP_SIZE (4*1024*1024)
+
+/**************************************************************************
+ * Public Types
+ **************************************************************************/
+
+/**************************************************************************
+ * Public Variables
+ **************************************************************************/
+
+/**************************************************************************
+ * Public Function Prototypes
+ **************************************************************************/
+
+#ifndef __ASSEMBLY__
+/* up_setjmp.S ************************************************************/
+
+extern int  up_setjmp(int *jb);
+extern void up_longjmp(int *jb, int val) __attribute__ ((noreturn));
+
+/* up_devconsole **********************************************************/
+
+extern void up_devconsole(void);
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ARCH_UP_INTERNAL_H */