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annotate blastem.h @ 75:108e587165c0

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Implement DMA (untested)
author Mike Pavone <pavone@retrodev.com>
date Fri, 21 Dec 2012 20:56:32 -0800
parents 7a22a0e6c004
children 209a37eed3e7
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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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6 typedef struct {
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7 uint32_t th_counter;
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8 uint32_t timeout_cycle;
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9 uint8_t output;
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10 uint8_t control;
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11 uint8_t input[3];
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12 } io_port;
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14 #define GAMEPAD_TH0 0
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15 #define GAMEPAD_TH1 1
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16 #define GAMEPAD_EXTRA 2
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18 extern io_port gamepad_1;
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19 extern io_port gamepad_2;
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21 void io_adjust_cycles(io_port * pad, uint32_t current_cycle, uint32_t deduction);
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22 uint16_t read_dma_value(uint32_t address);
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24 #endif //BLASTEM_H_
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