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  1. /*-------------------------------------------------------------------------
  2.    setjmp.h - header file for setjmp & longjmp ANSI routines
  3.  
  4.    Copyright (C) 1999, Sandeep Dutta . sandeep.dutta@usa.net
  5.  
  6.    This library is free software; you can redistribute it and/or modify it
  7.    under the terms of the GNU General Public License as published by the
  8.    Free Software Foundation; either version 2, or (at your option) any
  9.    later version.
  10.  
  11.    This library is distributed in the hope that it will be useful,
  12.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14.    GNU General Public License for more details.
  15.  
  16.    You should have received a copy of the GNU General Public License
  17.    along with this library; see the file COPYING. If not, write to the
  18.    Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
  19.    MA 02110-1301, USA.
  20.  
  21.    As a special exception, if you link this library with other files,
  22.    some of which are compiled with SDCC, to produce an executable,
  23.    this library does not by itself cause the resulting executable to
  24.    be covered by the GNU General Public License. This exception does
  25.    not however invalidate any other reasons why the executable file
  26.    might be covered by the GNU General Public License.
  27. -------------------------------------------------------------------------*/
  28.  
  29. #ifndef __SDCC_SETJMP_H
  30. #define __SDCC_SETJMP_H
  31.  
  32. #define SP_SIZE         1
  33.  
  34. #ifdef __SDCC_STACK_AUTO
  35. #define BP_SIZE         SP_SIZE
  36. #else
  37. #define BP_SIZE         0
  38. #endif
  39.  
  40. #ifdef __SDCC_USE_XSTACK
  41. #define SPX_SIZE        1
  42. #else
  43. #define SPX_SIZE        0
  44. #endif
  45.  
  46. #define BPX_SIZE        SPX_SIZE
  47.  
  48. #ifdef __SDCC_MODEL_HUGE
  49. #define RET_SIZE        3
  50. #else
  51. #define RET_SIZE        2
  52. #endif
  53.  
  54. #if defined (__SDCC_z80) || defined (__SDCC_z180) || defined (__SDCC_r2k) || defined (__SDCC_r3ka) || defined (__SDCC_tlcs90) || defined (__SDCC_ez80_z80)
  55. typedef unsigned char jmp_buf[6]; /* 2 for the stack pointer, 2 for the return address, 2 for the frame pointer. */
  56. #elif defined (__SDCC_ds390) || defined (__SDCC_stm8) && defined (__SDCC_MODEL_LARGE)
  57. typedef unsigned char jmp_buf[5]; /* 2 for the stack pointer, 3 for the return address. */
  58. #elif defined (__SDCC_stm8) || defined (__SDCC_gbz80) || defined (__SDCC_hc08) || defined (__SDCC_s08)
  59. typedef unsigned char jmp_buf[4]; /* 2 for the stack pointer, 2 for the return address. */
  60. #elif defined (__SDCC_pdk13) || defined (__SDCC_pdk14) || defined (__SDCC_pdk15)
  61. typedef unsigned char jmp_buf[3]; /* 1 for the stack pointer, 2 for the return address. */
  62. #else
  63. typedef unsigned char jmp_buf[RET_SIZE + SP_SIZE + BP_SIZE + SPX_SIZE + BPX_SIZE];
  64. #endif
  65.  
  66. int __setjmp (jmp_buf);
  67.  
  68. /* C99 might require setjmp to be a macro. The standard seems self-contradicting on this issue. */
  69. /* However, it is clear that the standards allow setjmp to be a macro. */
  70. #define setjmp(jump_buf) __setjmp(jump_buf)
  71.  
  72. #ifndef __SDCC_HIDE_LONGJMP
  73. _Noreturn void longjmp(jmp_buf, int);
  74. #endif
  75.  
  76. #undef RET_SIZE
  77. #undef SP_SIZE
  78. #undef BP_SIZE
  79. #undef SPX_SIZE
  80. #undef BPX_SIZE
  81.  
  82. #endif
  83.  
  84.