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annotate blastem.h @ 418:dbf4e1c86f3c

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Implement basic joystick support
author Mike Pavone <pavone@retrodev.com>
date Sun, 23 Jun 2013 22:27:12 -0700
parents c26e48a93fa3
children d0cacb4ade0b
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1 #ifndef BLASTEM_H_
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2 #define BLASTEM_H_
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4 #include <stdint.h>
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5 #include "m68k_to_x86.h"
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6 #include "z80_to_x86.h"
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7 #include "ym2612.h"
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8 #include "vdp.h"
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9 #include "psg.h"
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11 typedef struct {
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12 uint32_t th_counter;
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13 uint32_t timeout_cycle;
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14 uint8_t output;
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15 uint8_t control;
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16 uint8_t input[3];
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17 } io_port;
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19 #define RAM_FLAG_ODD 0x1800
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20 #define RAM_FLAG_EVEN 0x1000
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21 #define RAM_FLAG_BOTH 0x0000
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23 typedef struct {
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24 m68k_context *m68k;
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25 z80_context *z80;
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26 vdp_context *vdp;
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27 ym2612_context *ym;
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28 psg_context *psg;
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29 uint8_t *save_ram;
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30 uint32_t save_ram_mask;
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31 uint32_t save_flags;
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32 uint8_t bank_regs[8];
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33 } genesis_context;
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35 #define GAMEPAD_TH0 0
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36 #define GAMEPAD_TH1 1
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37 #define GAMEPAD_EXTRA 2
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38 #define GAMEPAD_NONE 0xF
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40 extern io_port gamepad_1;
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41 extern io_port gamepad_2;
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43 void io_adjust_cycles(io_port * pad, uint32_t current_cycle, uint32_t deduction);
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44 uint16_t read_dma_value(uint32_t address);
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45 m68k_context * debugger(m68k_context * context, uint32_t address);
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46 void handle_keydown(int keycode);
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47 void handle_keyup(int keycode);
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48 void handle_joydown(int joystick, int button);
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49 void handle_joyup(int joystick, int button);
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50 void handle_joy_dpad(int joystick, int dpad, uint8_t state);
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52 #endif //BLASTEM_H_
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