sdcc/device/include/pic14/setjmp.h

   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 #if defined(__SDCC_pic14)
  33 #warning "setjmp.h : setjmp/longjmp not implemented in SDCC pic14 port"
  34 #endif
  35
  36 #define SP_SIZE         1
  37
  38 #ifdef __SDCC_STACK_AUTO
  39 #define BP_SIZE         SP_SIZE
  40 #else
  41 #define BP_SIZE         0
  42 #endif
  43
  44 #ifdef __SDCC_USE_XSTACK
  45 #define SPX_SIZE        1
  46 #else
  47 #define SPX_SIZE        0
  48 #endif
  49
  50 #define BPX_SIZE        SPX_SIZE
  51
  52 #ifdef __SDCC_MODEL_HUGE
  53 #define RET_SIZE        3
  54 #else
  55 #define RET_SIZE        2
  56 #endif
  57
  58 #if defined (__SDCC_z80) || defined (__SDCC_z180) || defined (__SDCC_r2k) || defined (__SDCC_r3ka) || defined (__SDCC_tlcs90) || defined (__SDCC_ez80_z80)
  59 typedef unsigned char jmp_buf[6]; /* 2 for the stack pointer, 2 for the return address, 2 for the frame pointer. */
  60 #elif defined (__SDCC_ds390) || defined (__SDCC_stm8) && defined (__SDCC_MODEL_LARGE)
  61 typedef unsigned char jmp_buf[5]; /* 2 for the stack pointer, 3 for the return address. */
  62 #elif defined (__SDCC_stm8) || defined (__SDCC_gbz80) || defined (__SDCC_hc08) || defined (__SDCC_s08)
  63 typedef unsigned char jmp_buf[4]; /* 2 for the stack pointer, 2 for the return address. */
  64 #elif defined (__SDCC_pdk13) || defined (__SDCC_pdk14) || defined (__SDCC_pdk15)
  65 typedef unsigned char jmp_buf[3]; /* 1 for the stack pointer, 2 for the return address. */
  66 #else
  67 typedef unsigned char jmp_buf[RET_SIZE + SP_SIZE + BP_SIZE + SPX_SIZE + BPX_SIZE];
  68 #endif
  69
  70 int __setjmp (jmp_buf);
  71
  72 /* C99 might require setjmp to be a macro. The standard seems self-contradicting on this issue. */
  73 /* However, it is clear that the standards allow setjmp to be a macro. */
  74 #define setjmp(jump_buf) __setjmp(jump_buf)
  75
  76 #ifndef __SDCC_HIDE_LONGJMP
  77 _Noreturn void longjmp(jmp_buf, int);
  78 #endif
  79
  80 #undef RET_SIZE
  81 #undef SP_SIZE
  82 #undef BP_SIZE
  83 #undef SPX_SIZE
  84 #undef BPX_SIZE
  85
  86 #endif
  87