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annotate io.h @ 620:9d6fed6501ba

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Fix handling of code writes for Z80 core. This seems to get things close to being back to where they were before the big refactor that broke the Z80 core. Some problems remain. Notably the sound driver in Sonic 2 is still quite broken.
author Michael Pavone <pavone@retrodev.com>
date Mon, 29 Dec 2014 23:08:39 -0800
parents 140af5509ce7
children d77c79cec800
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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
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10 typedef struct {
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11 uint32_t th_counter;
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12 uint32_t timeout_cycle;
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13 uint8_t output;
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14 uint8_t control;
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15 uint8_t input[3];
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16 } io_port;
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17
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18 #define GAMEPAD_TH0 0
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19 #define GAMEPAD_TH1 1
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20 #define GAMEPAD_EXTRA 2
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21 #define GAMEPAD_NONE 0xF
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22
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23 void set_keybindings();
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24 void io_adjust_cycles(io_port * pad, uint32_t current_cycle, uint32_t deduction);
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25 void io_data_write(io_port * pad, uint8_t value, uint32_t current_cycle);
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26 uint8_t io_data_read(io_port * pad, uint32_t current_cycle);
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27 void handle_keydown(int keycode);
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28 void handle_keyup(int keycode);
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29 void handle_joydown(int joystick, int button);
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30 void handle_joyup(int joystick, int button);
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31 void handle_joy_dpad(int joystick, int dpad, uint8_t state);
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32
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33 #endif //IO_H_
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