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  1. /*
  2.  * Copyright (C) 2005 Ondrej Palkovsky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #ifndef __mips32_DEBUG_H__
  30. #define __mips23_DEBUG_H__
  31.  
  32.  
  33.  
  34. /** simulator enters the trace mode */
  35. #define ___traceon()    asm volatile ( "\t.word\t0x39\n");
  36. /**     simulator leaves the trace mode */
  37. #define ___traceoff()   asm volatile ( "\t.word\t0x3d\n");
  38. /**     register dump */
  39. #define ___regview()    asm volatile ( "\t.word\t0x37\n");
  40. /**     halt the simulator */
  41. #define ___halt()   asm volatile ( "\t.word\t0x28\n");
  42. /**     simulator enters interactive mode */
  43. #define ___intmode()    asm volatile ( "\t.word\t0x29\n");
  44.  
  45. /** Return current IP address */
  46. static inline __address * _get_ra()
  47. {
  48.     __address *ip;
  49.  
  50.     __asm__ volatile (
  51.         "mov %%31, %0"
  52.         : "=r" (ip)
  53.         );
  54.     return ip;
  55. }
  56. #define CALLER(first_arg)    (_get_ra())
  57.  
  58.  
  59. #endif
  60.