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annotate io.h @ 985:751280fb4494

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Fix interrupt latency from STOP instruction status reg changes. Fix modified code patching when non-standard aliases are used. This fixes the demo MDEM's First
author Michael Pavone <pavone@retrodev.com>
date Sun, 24 Apr 2016 21:23:28 -0700
parents e28f365605da
children 7267bc1ab547
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1 /*
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2 Copyright 2013 Michael Pavone
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3 This file is part of BlastEm.
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
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5 */
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6 #ifndef IO_H_
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7 #define IO_H_
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8 #include <stdint.h>
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9 #include "tern.h"
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10 #include "romdb.h"
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11
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12 enum {
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13 IO_GAMEPAD3,
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14 IO_GAMEPAD6,
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15 IO_MOUSE,
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16 IO_MENACER,
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17 IO_JUSTIFIER,
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18 IO_SEGA_MULTI,
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19 IO_EA_MULTI_A,
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20 IO_EA_MULTI_B,
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21 IO_SEGA_PARALLEL,
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22 IO_GENERIC,
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23 IO_NONE
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24 };
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25
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26 typedef struct {
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27 union {
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28 struct {
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29 uint32_t timeout_cycle;
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30 uint16_t th_counter;
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31 uint16_t gamepad_num;
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32 } pad;
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33 struct {
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34 int data_fd;
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35 int listen_fd;
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36 } stream;
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37 struct {
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38 uint32_t ready_cycle;
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39 uint16_t last_read_x;
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40 uint16_t last_read_y;
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41 uint16_t cur_x;
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42 uint16_t cur_y;
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43 uint16_t latched_x;
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44 uint16_t latched_y;
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45 uint8_t tr_counter;
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46 uint8_t mouse_num;
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47 } mouse;
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48 } device;
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49 uint8_t output;
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50 uint8_t control;
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51 uint8_t input[3];
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52 uint8_t device_type;
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53 } io_port;
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54
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55 #define GAMEPAD_TH0 0
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56 #define GAMEPAD_TH1 1
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57 #define GAMEPAD_EXTRA 2
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58 #define GAMEPAD_NONE 0xF
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59
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60 #define IO_TH0 0
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61 #define IO_TH1 1
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62 #define IO_STATE 2
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63
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64 enum {
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65 IO_WRITE_PENDING,
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66 IO_WRITTEN,
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67 IO_READ_PENDING,
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68 IO_READ
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69 };
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70
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71 typedef struct genesis_context genesis_context;
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72
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73 void set_keybindings(io_port *ports);
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74 void map_all_bindings(io_port *ports);
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75 void setup_io_devices(tern_node * config, rom_info *rom, genesis_context * gen);
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76 void io_adjust_cycles(io_port * pad, uint32_t current_cycle, uint32_t deduction);
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77 void io_data_write(io_port * pad, uint8_t value, uint32_t current_cycle);
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78 uint8_t io_data_read(io_port * pad, uint32_t current_cycle);
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79 void handle_keydown(int keycode);
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80 void handle_keyup(int keycode);
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81 void handle_joydown(int joystick, int button);
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82 void handle_joyup(int joystick, int button);
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83 void handle_joy_dpad(int joystick, int dpad, uint8_t state);
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84 void handle_mouse_moved(int mouse, uint16_t x, uint16_t y, int16_t deltax, int16_t deltay);
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85 void handle_mousedown(int mouse, int button);
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86 void handle_mouseup(int mouse, int button);
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87
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88 #endif //IO_H_
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89