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annotate system.h @ 1322:b1423d432c0e

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Initial stab at implementing the output disable/layer selection bits of the VDP test register
author Michael Pavone <pavone@retrodev.com>
date Tue, 18 Apr 2017 19:27:10 -0700
parents 95f5253e75c7
children c886c54d8cf1
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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 (*speed_system_fun)(system_header *, uint32_t);
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26 #include "arena.h"
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27 #include "romdb.h"
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28
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29 struct system_header {
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30 system_header *next_context;
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31 system_str_fun start_context;
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32 system_fun resume_context;
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33 system_fun load_save;
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34 system_fun persist_save;
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35 system_fun request_exit;
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36 system_fun soft_reset;
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37 system_fun free_context;
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38 system_fun_r16 get_open_bus_value;
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39 speed_system_fun set_speed_percent;
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40 system_fun inc_debug_mode;
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41 system_fun inc_debug_pal;
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42 arena *arena;
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43 char *next_rom;
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44 char *save_dir;
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45 uint8_t enter_debugger;
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46 uint8_t should_exit;
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47 uint8_t save_state;
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48 debugger_type debugger_type;
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49 system_type type;
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50 };
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51
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52 struct system_media {
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53 void *buffer;
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54 char *name;
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55 char *extension;
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56 system_media *chain;
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57 uint32_t size;
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58 };
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59
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60 #define OPT_ADDRESS_LOG (1U << 31U)
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62 system_type detect_system_type(system_media *media);
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63 system_header *alloc_config_system(system_type stype, system_media *media, uint32_t opts, uint8_t force_region, rom_info *info_out);
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64
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65 #endif //SYSTEM_H_