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annotate system.h @ 1680:326d1a601fb9

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Fixed crash bug that could occur in a narrow window of time when loading a ROM
author Michael Pavone <pavone@retrodev.com>
date Thu, 17 Jan 2019 10:00:24 -0800
parents 6909c5d0bbb5
children 319d90025d50 5dacaef602a7
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1 #ifndef SYSTEM_H_
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2 #define SYSTEM_H_
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3 #include <stdint.h>
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4
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5 typedef struct system_header system_header;
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6 typedef struct system_media system_media;
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7
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8 typedef enum {
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9 SYSTEM_UNKNOWN,
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10 SYSTEM_GENESIS,
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11 SYSTEM_SMS,
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12 SYSTEM_JAGUAR
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13 } system_type;
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14
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15 typedef enum {
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16 DEBUGGER_NATIVE,
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17 DEBUGGER_GDB
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18 } debugger_type;
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19
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20 typedef void (*system_fun)(system_header *);
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21 typedef uint16_t (*system_fun_r16)(system_header *);
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22 typedef void (*system_str_fun)(system_header *, char *);
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23 typedef uint8_t (*system_str_fun_r8)(system_header *, char *);
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24 typedef void (*system_u32_fun)(system_header *, uint32_t);
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25 typedef void (*system_u8_fun)(system_header *, uint8_t);
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26 typedef uint8_t (*system_u8_fun_r8)(system_header *, uint8_t);
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27 typedef void (*system_u8_u8_fun)(system_header *, uint8_t, uint8_t);
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28 typedef void (*system_mabs_fun)(system_header *, uint8_t, uint16_t, uint16_t);
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29 typedef void (*system_mrel_fun)(system_header *, uint8_t, int32_t, int32_t);
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31 #include "arena.h"
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32 #include "romdb.h"
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33
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34 struct system_header {
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35 system_header *next_context;
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36 system_str_fun start_context;
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37 system_fun resume_context;
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38 system_fun load_save;
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39 system_fun persist_save;
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40 system_u8_fun_r8 load_state;
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41 system_fun request_exit;
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42 system_fun soft_reset;
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43 system_fun free_context;
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44 system_fun_r16 get_open_bus_value;
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45 system_u32_fun set_speed_percent;
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46 system_fun inc_debug_mode;
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47 system_u8_u8_fun gamepad_down;
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48 system_u8_u8_fun gamepad_up;
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49 system_u8_u8_fun mouse_down;
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50 system_u8_u8_fun mouse_up;
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51 system_mabs_fun mouse_motion_absolute;
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52 system_mrel_fun mouse_motion_relative;
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53 system_u8_fun keyboard_down;
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54 system_u8_fun keyboard_up;
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55 system_fun config_updated;
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56 rom_info info;
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57 arena *arena;
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58 char *next_rom;
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59 char *save_dir;
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60 uint8_t enter_debugger;
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61 uint8_t should_exit;
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62 uint8_t save_state;
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63 uint8_t delayed_load_slot;
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64 uint8_t has_keyboard;
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65 debugger_type debugger_type;
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66 system_type type;
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67 };
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69 struct system_media {
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70 void *buffer;
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71 char *dir;
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72 char *name;
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73 char *extension;
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74 system_media *chain;
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75 uint32_t size;
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76 };
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78 #define OPT_ADDRESS_LOG (1U << 31U)
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80 system_type detect_system_type(system_media *media);
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81 system_header *alloc_config_system(system_type stype, system_media *media, uint32_t opts, uint8_t force_region);
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82
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83 #endif //SYSTEM_H_