empathicqubit/Mesen-X
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3036 commits 2 branches 37 tags 107 MiB
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151 commits

Author SHA1 Message Date
Persune
a22b17b2c1 Add /A13 and /OE1 audio interference 
In hardware, the audio from the 2A03 APU pins go through an inverted
preamp using one of the 74HCU04 inverter chips in the motherboard.
Though this may be cost-effective on Nintendo's part, the signals on the
hex inverter chip can interfere with one another, especially on the
audio. This can be heard as a buzz or a high pitched whine.

The only known signals to interfere with the audio so far is:
- /A13, the inverted signal of PPU A13 going into the cartridge
   connector.
- /OE1, Output enable for controller reads, though this is only found
   present on the RF Famicom.
 2021-08-11 17:55:56 +08:00
Perkka2
000bfb1a71 Renamed EPSG to EPSM, changed NSF header bit for EPSM from 6 to 7 2021-07-30 14:21:56 +02:00
Perkka2
64efda4e0b Some cleanup and added $4016 EPSG addressing to all mappers 2021-01-28 18:18:35 +01:00
Perkka2
7de782b486 EPSG $4016 addressing, EPSG ui checkbox 
Added support for $4016 addressing for the EPSG
Added ui element to enable EPSG, remains to be implemented
 2021-01-28 18:18:34 +01:00
Sour
47b10a234b Linux: Fixed compilation error 2020-01-22 20:04:14 -05:00
Sour
8047fe44bb Added Study Box tape support (.studybox files) 
-Added audio support
-Improved emulation logic
-Games are loaded via .studybox files
 2019-12-31 20:24:06 -05:00
Sour
43811ae7ac UI: Added "reload rom" option and changed power cycle to not reload from disk 2019-11-19 22:18:09 -05:00
Sour
7041ec7682 Linux: Fixed compilation warnings/errors with GCC/clang 2019-11-13 18:30:05 -05:00
Sour
e338ab0765 Fixed init order when loading a game to prevent potential crashes (or incorrect behavior) in some scenarios (mostly if using the random mapper state option) 2019-06-22 16:33:59 -04:00
Sour
72fc0de383 Allow dipswitches to be manually configured for mappers that use them (instead of incrementing the value on reset) 2019-02-08 19:39:35 -05:00
Sour
c4dbe9929c Added support for Bandai's EEPROMs 2019-01-26 10:05:07 -05:00
Sour
4c9e297034 Debugger: Added nametable breakpoint support 2019-01-14 19:01:13 -05:00
Sour
079564cb25 Debugger: Fixed out-of-range memory read bug in memory import logic 2019-01-13 19:15:37 -05:00
Sour
76f64b19ef Debugger: Added access counters for CHR ROM/RAM and nametable memory 
+Added read/write highlighting, etc. for memory viewer tabs
+Improved show tile/attribute updates in PPU viewer
 2019-01-13 18:32:27 -05:00
Sour
8f53659d5f Namco163: Fixed save games for games that use the mapper's 128-byte internal RAM as save data 2019-01-13 15:20:57 -05:00
Sour
ce68ce57c0 Core: Refactored nametable RAM management to fix some issues and remove some limitations 
(This breaks save state compatibility)
 2019-01-13 15:20:57 -05:00
Sour
40710c3665 Debugger: Allow debugger to peek at APU/PPU registers without altering the state 2018-12-25 00:07:45 -05:00
Sour
60e0bd4e01 Debugger: Fixed issues & improved performance with new breakpoint logic 2018-12-25 00:07:38 -05:00
Sour
fd33562205 HD Pack Builder: Improved performance while recording (~80fps -> ~180fps) 2018-09-07 21:30:00 -04:00
Sour
726a4121dd Debugger: Improved CPU/PPU memory mapping display 2018-08-19 13:53:20 -04:00
Sour
1eea81f2c5 Fixed crash when trying to map memory ranges that aren't multiples of 256 bytes (or misaligned) 2018-08-07 18:29:09 -04:00
Sour
15373016d0 Refactoring - removed statics from EmulationSettings 2018-07-14 18:32:32 -04:00
Sour
d72d1f3c6d Added more VS System info to DB, support for new NES 2.0 proposals (WIP) + some refactoring 2018-07-08 10:28:49 -04:00
Sour
04310eddb4 Core refactoring (remove static variables) - WIP 2018-07-08 10:28:47 -04:00
Sour
b5d460ffb3 UNIF: Added support for SSS-NROM-256 board (Famicombox Menu cartridge) - incomplete, but boots properly 2018-06-25 13:04:23 -04:00
Sour
6a59bb52c9 Fixed issues with Sunsoft-4 emulation (Mapper 68) - Nantettatte roms with external PRG now work properly 2018-06-17 11:28:41 -04:00
Sour
aad8b2bd47 PPU: Simulate the PPU's address bus a bit better (fixes Touhou Rououmu homebrew that detected Mesen as an emulator because of it) 2018-06-02 22:12:00 -04:00
Sour
6d1ca4503e Added option to boot up (some) mappers in a random state (useful for homebrew dev) 2018-04-14 22:12:05 -04:00
Sour
3a4cea91c0 UI: Added option to allow save states to be loaded even when hash mismatches (if mapper matches) 2018-03-20 22:05:38 -04:00
Sour
8c48aaa100 BaseMapper: Keep _hasBattery flag, even if save ram is 0 bytes long (+ removed old ForceBattery patch) 2018-03-15 23:57:35 -04:00
Sour
cdbc35e49f Debugger: Added ability to customize the default labels on a per-mapper basis 2018-03-03 15:40:11 -05:00
Sour
d62d701e64 Debugger: Added paste/undo support in hex editor 2018-02-24 14:23:54 -05:00
Sour
d8e00168a4 Debugger: Added "Event Viewer" tool - replaces PPU Register Write Viewer 2018-02-18 23:03:02 -05:00
Sour
3a4bab270e Debugger: Improved breakpoint management 2018-02-10 21:23:22 -05:00
Sour
2f9305779d Debugger: Add options to generate stripped rom based on CDL data 2018-01-01 12:09:33 -05:00
Sour
35f65fad73 Debugger: Option to show label in breakpoint list (+ fixed display for absolute PPU breakpoints) 2017-12-31 17:22:54 -05:00
Sour
db971fe5cc HD Packs: Performance fixes (CHR RAM games run 2x faster than before + some improvements for CHR ROM games) 2017-12-18 20:02:25 -05:00
Souryo
850102bbdc Input: Added support for ~20 new peripherals (Incomplete, more fixes/changes to come) 
Movies: Rewrote format to support all IO devices and console types
Netplay: Now supports all IO devices and console types
 2017-11-19 23:08:23 -05:00
Souryo
4245561034 Debugger: Lua - Remove "debug" read/write API (replaced by cpuDebug & ppuDebug enum values) 2017-10-07 13:31:28 -04:00
Souryo
5957bc2d3e Debugger: LUA scripting 2017-08-30 18:31:27 -04:00
Souryo
8e2f39e3bd Debugger: Added ability to revert prg/chr changes 2017-08-21 23:11:14 -04:00
Souryo
daca866957 Debugger: Add option to save changes as IPS file 2017-08-19 19:40:02 -04:00
Souryo
2ee5b59db4 Debugger: Added NES header editor 2017-08-12 16:52:45 -04:00
Souryo
4e14a83625 Debugger: General speed optimizations 2017-08-05 17:18:09 -04:00
Souryo
4455178da2 Code refactoring (patch/archive handling) + allow HD packs to be loaded from archives 2017-07-30 09:46:07 -04:00
Souryo
8d4dcf96e2 FDS: Fixed save file issues when using power cycle 2017-07-15 22:52:37 -04:00
Souryo
e82371e2f8 HD Packs: Improvements, new features, bug fixes 2017-06-28 20:01:24 -04:00
Souryo
8032407f28 Fixed some games (Galaxian, Mighty Bomb Jack) + added some games to DB to fix headers 2017-05-25 20:04:49 -04:00
Souryo
211e6354c8 Movies: FM2 file format support (incomplete, wip) 2017-04-24 18:28:50 -04:00
Souryo
194d933685 Movies: bk2 movie format support (incomplete + sync issues vs NesHawk) 2017-04-22 13:19:21 -04:00