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annotate romdb.h @ 1603:c0727712d529

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Read extral SDL2 mappings on startup from controller_types.cfg
author Michael Pavone <pavone@retrodev.com>
date Tue, 31 Jul 2018 23:08:52 -0700
parents 360d5bab199f
children c206a422d466
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1 #ifndef ROMDB_H_
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2 #define ROMDB_H_
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3
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4 #define REGION_J 1
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5 #define REGION_U 2
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6 #define REGION_E 4
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7
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8 #define RAM_FLAG_ODD 0x18
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9 #define RAM_FLAG_EVEN 0x10
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10 #define RAM_FLAG_BOTH 0x00
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11 #define RAM_FLAG_MASK RAM_FLAG_ODD
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12 #define SAVE_I2C 0x01
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13 #define SAVE_NOR 0x02
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14 #define SAVE_NONE 0xFF
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15
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16 #include "tern.h"
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17 #include "serialize.h"
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18
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19 typedef struct {
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20 uint32_t start;
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21 uint32_t end;
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22 uint16_t sda_write_mask;
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23 uint16_t scl_mask;
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24 uint8_t sda_read_bit;
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25 } eeprom_map;
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26
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27 typedef struct {
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28 uint8_t *buffer;
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29 uint8_t *page_buffer;
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30 uint32_t size;
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31 uint32_t page_size;
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32 uint32_t current_page;
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33 uint32_t last_write_cycle;
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34 uint32_t cmd_address1;
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35 uint32_t cmd_address2;
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36 uint16_t product_id;
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37 uint8_t mode;
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38 uint8_t cmd_state;
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39 uint8_t alt_cmd;
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40 uint8_t bus_flags;
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41 } nor_state;
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42
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43 enum {
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44 MAPPER_NONE,
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45 MAPPER_SEGA,
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46 MAPPER_REALTEC,
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47 MAPPER_XBAND,
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48 MAPPER_MULTI_GAME
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49 };
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50
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52 typedef struct rom_info rom_info;
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53
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54 #include "memmap.h"
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55
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56 struct rom_info {
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57 char *name;
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58 memmap_chunk *map;
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59 uint8_t *save_buffer;
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60 void *rom;
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61 eeprom_map *eeprom_map;
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62 char *port1_override;
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63 char *port2_override;
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64 char *ext_override;
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65 char *mouse_mode;
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66 nor_state *nor;
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67 uint32_t num_eeprom;
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68 uint32_t map_chunks;
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69 uint32_t rom_size;
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70 uint32_t save_size;
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71 uint32_t save_mask;
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72 uint16_t mapper_start_index;
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73 uint8_t save_type;
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74 uint8_t save_bus; //only used for NOR currently
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75 uint8_t mapper_type;
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76 uint8_t regions;
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77 uint8_t is_save_lock_on; //Does the save buffer actually belong to a lock-on cart?
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78 };
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79
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80 #define GAME_ID_OFF 0x183
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81 #define GAME_ID_LEN 8
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82
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83 tern_node *load_rom_db();
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84 rom_info configure_rom(tern_node *rom_db, void *vrom, uint32_t rom_size, void *lock_on, uint32_t lock_on_size, memmap_chunk const *base_map, uint32_t base_chunks);
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85 rom_info configure_rom_heuristics(uint8_t *rom, uint32_t rom_size, memmap_chunk const *base_map, uint32_t base_chunks);
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86 uint8_t translate_region_char(uint8_t c);
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87 char const *save_type_name(uint8_t save_type);
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88 //Note: free_rom_info only frees things pointed to by a rom_info struct, not the struct itself
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89 //this is because rom_info structs are typically stack allocated
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90 void free_rom_info(rom_info *info);
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91 typedef struct system_header system_header;
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92 void cart_serialize(system_header *sys, serialize_buffer *buf);
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93 void cart_deserialize(deserialize_buffer *buf, void *vcontext);
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94
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95 #endif //ROMDB_H_