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annotate sms.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 d6d4c006a7b3
children 8fe162bdb038 9a8dd4ba2753
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928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
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1 #ifndef SMS_H_
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2 #define SMS_H_
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3
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4 #include "system.h"
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5 #include "vdp.h"
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6 #include "psg.h"
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7 #ifdef NEW_CORE
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8 #include "z80.h"
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9 #else
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10 #include "z80_to_x86.h"
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11 #endif
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12 #include "io.h"
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13
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14 #define SMS_RAM_SIZE (8*1024)
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6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1141
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15 #define SMS_CART_RAM_SIZE (32*1024)
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16
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17 typedef struct {
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18 system_header header;
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19 z80_context *z80;
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20 vdp_context *vdp;
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21 psg_context *psg;
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22 sega_io io;
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23 uint8_t *rom;
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24 uint32_t rom_size;
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25 uint32_t master_clock;
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26 uint32_t normal_clock;
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27 uint8_t should_return;
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28 uint8_t ram[SMS_RAM_SIZE];
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Michael Pavone <pavone@retrodev.com>
parents: 1141
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29 uint8_t bank_regs[4];
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1141
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30 uint8_t cart_ram[SMS_CART_RAM_SIZE];
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31 } sms_context;
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32
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33 sms_context *alloc_configure_sms(system_media *media, uint32_t opts, uint8_t force_region);
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34
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35 #endif //SMS_H_