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annotate memmap.h @ 1971:80920c21bb52

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Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
author Michael Pavone <pavone@retrodev.com>
date Fri, 08 May 2020 11:40:30 -0700
parents 360d5bab199f
children 9caebcfeac72
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1 #ifndef MEMMAP_H_
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2 #define MEMMAP_H_
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3
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4 typedef enum {
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5 READ_16,
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6 READ_8,
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7 WRITE_16,
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8 WRITE_8
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9 } ftype;
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10
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11 #define MMAP_READ 0x01
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12 #define MMAP_WRITE 0x02
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13 #define MMAP_CODE 0x04
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14 #define MMAP_PTR_IDX 0x08
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15 #define MMAP_ONLY_ODD 0x10
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16 #define MMAP_ONLY_EVEN 0x20
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17 #define MMAP_FUNC_NULL 0x40
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18 #define MMAP_BYTESWAP 0x80
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19 #define MMAP_AUX_BUFF 0x100
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20 #define MMAP_READ_CODE 0x200
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21
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22 typedef uint16_t (*read_16_fun)(uint32_t address, void * context);
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23 typedef uint8_t (*read_8_fun)(uint32_t address, void * context);
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24 typedef void * (*write_16_fun)(uint32_t address, void * context, uint16_t value);
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25 typedef void * (*write_8_fun)(uint32_t address, void * context, uint8_t value);
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26
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27 typedef struct {
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28 uint32_t start;
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29 uint32_t end;
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30 uint32_t mask;
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31 uint32_t aux_mask;
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32 uint16_t ptr_index;
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33 uint16_t flags;
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34 void * buffer;
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35 read_16_fun read_16;
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36 write_16_fun write_16;
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37 read_8_fun read_8;
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38 write_8_fun write_8;
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39 } memmap_chunk;
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40
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41 #endif //MEMMAP_H_