Subversion Repositories ao486

#ifndef __ALT_SIM_H__

#define __ALT_SIM_H__

/******************************************************************************

*                                                                             *

* License Agreement                                                           *

*                                                                             *

* Copyright (c) 2007      Altera Corporation, San Jose, California, USA.      *

* All rights reserved.                                                        *

*                                                                             *

* Permission is hereby granted, free of charge, to any person obtaining a     *

* copy of this software and associated documentation files (the "Software"),  *

* to deal in the Software without restriction, including without limitation   *

* the rights to use, copy, modify, merge, publish, distribute, sublicense,    *

* and/or sell copies of the Software, and to permit persons to whom the       *

* Software is furnished to do so, subject to the following conditions:        *

*                                                                             *

* The above copyright notice and this permission notice shall be included in  *

* all copies or substantial portions of the Software.                         *

*                                                                             *

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR  *

* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,    *

* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *

* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER      *

* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING     *

* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER         *

* DEALINGS IN THE SOFTWARE.                                                   *

*                                                                             *

* This agreement shall be governed in all respects by the laws of the State   *

* of California and by the laws of the United States of America.              *

*                                                                             *

******************************************************************************/

#include "system.h"

#include "alt_types.h"

/*

 * Instructions that might mean something special to a simulator.

 * These have no special effect on real hardware (they are just nops).

 */

#define ALT_SIM_FAIL() \

    do { __asm volatile ("cmpltui r0, r0, 0xabc1"); } while (0)

#define ALT_SIM_PASS() \

    do { __asm volatile ("cmpltui r0, r0, 0xabc2"); } while (0)

#define ALT_SIM_IN_TOP_OF_HOT_LOOP() \

    do { __asm volatile ("cmpltui r0, r0, 0xabc3"); } while (0)

/*

 * Routine called on exit.

 */

static ALT_INLINE ALT_ALWAYS_INLINE void alt_sim_halt(int exit_code)

{

  int r2 = exit_code;

#if defined(NIOS2_HAS_DEBUG_STUB) && (defined(ALT_BREAK_ON_EXIT) || defined(ALT_PROVIDE_GMON))

  int r3 = (1 << 2);

#ifdef ALT_PROVIDE_GMON

  extern unsigned int alt_gmon_data[];

  int r4 = (int)alt_gmon_data;

  r3 |= (1 << 4);

#define ALT_GMON_DATA ,"D04"(r4)

#else

#define ALT_GMON_DATA

#endif /* ALT_PROVIDE_GMON */

  if (r2) {

    ALT_SIM_FAIL();

  } else {

    ALT_SIM_PASS();

  }

  __asm__ volatile ("\n0:\n\taddi %0,%0, -1\n\tbgt %0,zero,0b" : : "r" (ALT_CPU_FREQ/100) ); /* Delay for >30ms */

  __asm__ volatile ("break 2" : : "D02"(r2), "D03"(r3) ALT_GMON_DATA );

#else /* !DEBUG_STUB */

  if (r2) {

    ALT_SIM_FAIL();

  } else {

    ALT_SIM_PASS();

  }

#endif /* DEBUG_STUB */

}

#define ALT_SIM_HALT(exit_code) \

  alt_sim_halt(exit_code)

#endif /* __ALT_SIM_H__ */