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996
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1 /* -*- mode: C; coding: utf-8; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*-
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2
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3 cfunge - a conformant Befunge93/98/08 interpreter in C.
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4 Copyright (C) 2008 Arvid Norlander <anmaster AT tele2 DOT se>
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5 Copyright (C) 2008 Alex Smith
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6
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7 This program is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 2 of the License, or
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10 (at your option) any later version.
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11
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12 This program is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with this program; if not, write to the Free Software
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19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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20
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21 Note that this code is designed to be linked against a GPLv3 library
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22 (producing a GPLv3 output), and therefore it is recommended that
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23 modifications to this code are compatible with GPLv3, although this
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24 is not a legal requirement.
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25 */
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26
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27 #ifndef FUNGE_HAD_SRC_FINGERPRINTS_IFFI_H
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28 #define FUNGE_HAD_SRC_FINGERPRINTS_IFFI_H
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29
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30 #include "../../global.h"
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31 #include "../manager.h"
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32
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33 #if !defined(CFUNGE_API_VERSION) || (CFUNGE_API_VERSION != 1)
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34 # error "This version of IFFI isn't compatible with this cfunge version."
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35 #endif
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36
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37 #ifdef CONCURRENT_FUNGE
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38 # error "The C-INTERCAL/cfunge external calls interface cannot be used concurrently."
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39 #endif
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40
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41 // We need at least GCC 4.1 for this trick.
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42 #if defined(__GNUC__) && (__GNUC__ >= 4) && !defined(__INTEL_COMPILER)
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43 # if (__GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
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44 # define PUBLIC __attribute__((visibility("protected"),externally_visible)) extern
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45 # else
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46 # define PUBLIC extern
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47 # endif
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48 #else
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49 # define PUBLIC extern
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50 #endif
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51
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52 struct ick_ipposdeltatype {
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53 long long ix, iy, dx, dy;
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54 };
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55
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56 // Externally-visible functions from IFFI.c
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57 // This is for manager.c
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58 bool finger_IFFI_load(instructionPointer * ip);
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59
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60 // We export these for use by ecto_b98
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61 // Please remember to update the matching extern(s) over there
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62 // if you change here.
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63 PUBLIC void ick_save_ip_pos_delta(struct ick_ipposdeltatype* ippd);
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64 PUBLIC void ick_restore_ip_pos_delta(const struct ick_ipposdeltatype* ippd);
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65 PUBLIC void ick_interpreter_run(void);
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66 PUBLIC void ick_iffi_interpreter_one_iteration(void);
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67
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68 // Implemented in ecto_b98
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69 extern void ick_interpreter_main_loop(void);
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70
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71 // Communication variables with ecto_b98
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72 extern unsigned short ick_iffi_forgetcount;
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73 extern int ick_iffi_nexting;
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74 extern int ick_iffi_comingfrom;
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75 extern int ick_iffi_nextingfrom;
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76 extern int ick_iffi_sucking;
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77 extern int ick_iffi_resuming;
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78 extern uint32_t ick_iffi_linelabel;
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79 extern int ick_iffi_breakloop;
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80 extern int ick_iffi_inmarkmode;
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81
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82 // Communication variables with the compiled .cio file
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83 extern const unsigned char * ick_iffi_befungeString;
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84
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85 // Communication variables with the runtime library
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86 extern int ick_printflow;
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87
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88 // Accessors and mutators for INTERCAL storage
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89 extern void ick_create(const char*, unsigned long);
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90 extern uint16_t ick_getonespot(unsigned short);
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91 extern void ick_setonespot(unsigned short, uint16_t);
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92 extern uint32_t ick_gettwospot(unsigned short);
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93 extern void ick_settwospot(unsigned short, uint32_t);
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94 extern int ick_c_i_width(int);
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95 extern int ick_c_i_isarray(int);
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96 extern unsigned short ick_c_i_varnumber(int);
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97 extern uint32_t ick_c_i_value(int);
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98 extern uint32_t ick_c_i_getvalue(int);
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99 extern void ick_c_i_setvalue(int, uint32_t);
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100
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101 #endif
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