Mercurial > repos > blastem
annotate genesis.h @ 2147:4cd60eecb0b1
Fix LC8951 cycle adjustment for data transfer next byte tracking
author | Michael Pavone <pavone@retrodev.com> |
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date | Sat, 26 Mar 2022 20:10:51 -0700 |
parents | 8ee7ecbf3f21 |
children | 408fb8a7e990 |
rev | line source |
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467
140af5509ce7
Added copyright notice to source files and added GPL license text in COPYING
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1 /* |
140af5509ce7
Added copyright notice to source files and added GPL license text in COPYING
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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>
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3 This file is part of BlastEm. |
467
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Added copyright notice to source files and added GPL license text in COPYING
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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
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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>
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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
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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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11 #include "m68k_core.h" |
1752
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Initial attempt at interrupts in new Z80 core and integrating it into main executable
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12 #ifdef NEW_CORE |
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Initial attempt at interrupts in new Z80 core and integrating it into main executable
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13 #include "z80.h" |
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Initial attempt at interrupts in new Z80 core and integrating it into main executable
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14 #else |
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>
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15 #include "z80_to_x86.h" |
1752
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Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
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16 #endif |
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>
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17 #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>
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198
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18 #include "vdp.h" |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
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19 #include "psg.h" |
421
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
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418
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20 #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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21 #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>
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874
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22 #include "arena.h" |
1414
d94855080529
Move I2C EEPROM and NOR Flash functions out of romdb.c into new files
Michael Pavone <pavone@retrodev.com>
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23 #include "i2c.h" |
66 | 24 |
957 | 25 typedef struct genesis_context genesis_context; |
26 | |
27 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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28 system_header header; |
957 | 29 m68k_context *m68k; |
30 z80_context *z80; | |
31 vdp_context *vdp; | |
32 ym2612_context *ym; | |
33 psg_context *psg; | |
34 uint16_t *cart; | |
1016
5fb64487b6e1
Very basic support for S&K lock-on. Needs more work for full functionality.
Michael Pavone <pavone@retrodev.com>
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981
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35 uint16_t *lock_on; |
957 | 36 uint16_t *work_ram; |
37 uint8_t *zram; | |
1502
2564b6ba2e12
Initial skeleton of Sega CD memory handlers
Michael Pavone <pavone@retrodev.com>
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1444
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38 void *expansion; |
957 | 39 void *extra; |
40 uint8_t *save_storage; | |
1413
3d7f668dce3d
Sonic 3 & Knuckles lock-on is now 100% functional with working saves
Michael Pavone <pavone@retrodev.com>
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1395
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41 void *mapper_temp; |
957 | 42 eeprom_map *eeprom_map; |
2034
8b2ef428d1aa
Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents:
1971
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43 write_16_fun tmss_write_16; |
8b2ef428d1aa
Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
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1971
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44 write_8_fun tmss_write_8; |
8b2ef428d1aa
Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
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1971
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45 read_16_fun tmss_read_16; |
8b2ef428d1aa
Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
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1971
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46 read_8_fun tmss_read_8; |
8b2ef428d1aa
Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents:
1971
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47 uint16_t *tmss_pointers[NUM_MEM_AREAS]; |
8b2ef428d1aa
Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents:
1971
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48 uint8_t *tmss_buffer; |
1690
319d90025d50
Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
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49 uint8_t *serialize_tmp; |
319d90025d50
Implement serialization/deserialization in libretro build
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50 size_t serialize_size; |
957 | 51 uint32_t num_eeprom; |
52 uint32_t save_size; | |
53 uint32_t save_ram_mask; | |
54 uint32_t master_clock; //Current master clock value | |
55 uint32_t normal_clock; //Normal master clock (used to restore master clock after turbo mode) | |
56 uint32_t frame_end; | |
57 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>
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1208
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58 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>
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1208
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59 uint32_t int_latency_prev2; |
1556
075df0844baa
Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
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1444
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60 uint32_t reset_cycle; |
1971
80920c21bb52
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
Michael Pavone <pavone@retrodev.com>
parents:
1946
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61 uint32_t last_frame; |
80920c21bb52
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
Michael Pavone <pavone@retrodev.com>
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1946
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62 uint32_t last_flush_cycle; |
80920c21bb52
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
Michael Pavone <pavone@retrodev.com>
parents:
1946
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63 uint32_t soft_flush_cycles; |
2034
8b2ef428d1aa
Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
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1971
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64 uint32_t tmss_write_offset; |
1757
bb4d19c7c047
Fix size of relocated Z80 bank register field
Michael Pavone <pavone@retrodev.com>
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65 uint16_t z80_bank_reg; |
1907
b021ca0bc375
Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
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1757
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66 uint16_t tmss_lock[2]; |
957 | 67 uint16_t mapper_start_index; |
1444
14a2834d010c
Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
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68 uint8_t mapper_type; |
2052
3748a2a8a4b7
Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
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69 uint8_t bank_regs[9]; |
957 | 70 uint8_t save_type; |
1111
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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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71 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
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72 uint8_t version_reg; |
957 | 73 uint8_t bus_busy; |
1208
95f5253e75c7
Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
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74 uint8_t reset_requested; |
1907
b021ca0bc375
Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents:
1757
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75 uint8_t tmss; |
2037
b0b0c31338c3
Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
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2034
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76 uint8_t vdp_unlocked; |
957 | 77 eeprom_state eeprom; |
1395
efa7225e0f07
Initial work to support parallel NOR flash and the Magistr 16
Michael Pavone <pavone@retrodev.com>
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1364
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78 nor_state nor; |
957 | 79 }; |
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>
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80 |
524
fb39534b6604
Move debugging code outside of main source file
Mike Pavone <pavone@retrodev.com>
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508
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81 #define RAM_WORDS 32 * 1024 |
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Move debugging code outside of main source file
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82 #define Z80_RAM_BYTES 8 * 1024 |
fb39534b6604
Move debugging code outside of main source file
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83 |
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360d5bab199f
Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
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84 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); |
1692 | 85 genesis_context *alloc_config_genesis_cdboot(system_media *media, uint32_t system_opts, uint8_t force_region); |
1946 | 86 void genesis_serialize(genesis_context *gen, serialize_buffer *buf, uint32_t m68k_pc, uint8_t all); |
1428
2540c05520f2
New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
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87 void genesis_deserialize(deserialize_buffer *buf, genesis_context *gen); |
66 | 88 |
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
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89 #endif //GENESIS_H_ |
66 | 90 |