Mercurial > repos > blastem
annotate genesis.h @ 1373:7cfc9d532e34
Fixed regression from VDP sync changes. Direct color DMA demos are now achieving stable sync again
author | Michael Pavone <pavone@retrodev.com> |
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date | Tue, 23 May 2017 23:17:24 -0700 |
parents | 30123ca5856c |
children | efa7225e0f07 |
rev | line source |
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467
140af5509ce7
Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
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1 /* |
140af5509ce7
Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
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2 Copyright 2013 Michael Pavone |
483
3e1573fa22cf
Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
Mike Pavone <pavone@retrodev.com>
parents:
467
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3 This file is part of BlastEm. |
467
140af5509ce7
Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
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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. |
140af5509ce7
Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents:
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5 */ |
1103
22e87b739ad6
WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
1016
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6 #ifndef GENESIS_H_ |
22e87b739ad6
WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
1016
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7 #define GENESIS_H_ |
66 | 8 |
75 | 9 #include <stdint.h> |
1111
2eb54e24914e
Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
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1103
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10 #include "system.h" |
569
9b7fcf748be0
Rename x86_68k_options and m68k_to_x86.h to m68k_options and m68k_core.h respectively
Michael Pavone <pavone@retrodev.com>
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524
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11 #include "m68k_core.h" |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
198
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12 #include "z80_to_x86.h" |
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
198
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13 #include "ym2612.h" |
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
198
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14 #include "vdp.h" |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
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351
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15 #include "psg.h" |
421
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
parents:
418
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16 #include "io.h" |
769
4638b88bc72d
Initial work on I2C EEPROM implementation
Michael Pavone <pavone@retrodev.com>
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767
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17 #include "romdb.h" |
883
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
874
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18 #include "arena.h" |
66 | 19 |
957 | 20 typedef struct genesis_context genesis_context; |
21 | |
22 struct genesis_context { | |
1111
2eb54e24914e
Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents:
1103
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changeset
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23 system_header header; |
957 | 24 m68k_context *m68k; |
25 z80_context *z80; | |
26 vdp_context *vdp; | |
27 ym2612_context *ym; | |
28 psg_context *psg; | |
29 uint16_t *cart; | |
1016
5fb64487b6e1
Very basic support for S&K lock-on. Needs more work for full functionality.
Michael Pavone <pavone@retrodev.com>
parents:
981
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30 uint16_t *lock_on; |
957 | 31 uint16_t *work_ram; |
32 uint8_t *zram; | |
33 void *extra; | |
34 uint8_t *save_storage; | |
35 eeprom_map *eeprom_map; | |
36 uint32_t num_eeprom; | |
37 uint32_t save_size; | |
38 uint32_t save_ram_mask; | |
39 uint32_t master_clock; //Current master clock value | |
40 uint32_t normal_clock; //Normal master clock (used to restore master clock after turbo mode) | |
41 uint32_t frame_end; | |
42 uint32_t max_cycles; | |
1364
30123ca5856c
Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents:
1208
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43 uint32_t int_latency_prev1; |
30123ca5856c
Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents:
1208
diff
changeset
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44 uint32_t int_latency_prev2; |
957 | 45 uint8_t bank_regs[8]; |
46 uint16_t mapper_start_index; | |
47 uint8_t save_type; | |
1111
2eb54e24914e
Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents:
1103
diff
changeset
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48 sega_io io; |
1103
22e87b739ad6
WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
1016
diff
changeset
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49 uint8_t version_reg; |
957 | 50 uint8_t bus_busy; |
1208
95f5253e75c7
Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
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1117
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51 uint8_t reset_requested; |
957 | 52 eeprom_state eeprom; |
53 }; | |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
198
diff
changeset
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54 |
524
fb39534b6604
Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
508
diff
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55 #define RAM_WORDS 32 * 1024 |
fb39534b6604
Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
508
diff
changeset
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56 #define Z80_RAM_BYTES 8 * 1024 |
fb39534b6604
Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
parents:
508
diff
changeset
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57 |
75 | 58 uint16_t read_dma_value(uint32_t address); |
707
8aa9aacefe12
Sync machine state before entering debugger
Michael Pavone <pavone@retrodev.com>
parents:
696
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59 m68k_context * sync_components(m68k_context *context, uint32_t address); |
1113
45db303fc705
Restore 68K address logging functionality
Michael Pavone <pavone@retrodev.com>
parents:
1111
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60 genesis_context *alloc_config_genesis(void *rom, uint32_t rom_size, void *lock_on, uint32_t lock_on_size, uint32_t system_opts, uint8_t force_region, rom_info *info_out); |
66 | 61 |
1103
22e87b739ad6
WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
1016
diff
changeset
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62 #endif //GENESIS_H_ |
66 | 63 |