empathicqubit/Mesen-X
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3069 commits 2 branches 37 tags 107 MiB
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140 commits

Author SHA1 Message Date
NovaSquirrel
6ea0f4f40d Revert "Merge pull request #42 from Gumball2415/feature-add-2a03-interference" 
This reverts commit f1696a90be, reversing
changes made to c130c1df82.
 2021-11-10 18:36:55 -05:00
Perkka2
649a62e7e1 Added basic EPSM IRQ behaviour 
Added IRQ's for EPSM still WIP but should work
Some cleanup of build warnings
 2021-08-26 15:03:02 +02:00
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
d06a647428 Added 401C-401F addressing to all mappers, more EPSM renaming 2021-07-30 16:06:29 +02:00
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
0fb4d34c3f EPSG $4016 addressing now only writes on odd CPU cycles 2021-03-19 15:16:36 +01:00
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
44b7190ad4 Debugger: Disable break on bus conflicts option when the current board does not have bus conflicts 2020-02-23 13:00:39 -05:00
Sour
1ebd943f3a Debugger: Rewrite profiler and memory counters 
Improves performance when debugger enabled (10-15%), simplifies code and improves memory counters UI
 2020-02-15 10:18:07 -05:00
Sour
8fd774b038 Debugger: Added "break on bus conflict" option 2019-12-12 21:03:32 -05:00
Sour
bc32701d8e Debugger: Fixed CHR mapping display bug 2019-12-06 20:29:58 -05:00
Sour
38b50f016f Study Box: Fixed incorrect mappings and fixed the display for 4400-4FFF in the debugger window 
(+ fixed some debug warnings)
 2019-11-23 21:40:13 -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
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
5e5e1a5e60 Linux: Fixed compiler warnings 2019-01-26 16:49:26 -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
a27cf40e96 Debugger: Memory Viewer - Added nametable ram option to dropdown 2019-01-13 19:04:43 -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
a00a36256a MMC5: Allow NES 2.0 headers to control the work/save ram sizes properly 
+ Fixed debugger always showing work ram as "save ram" in the debugger for MMC5 titles
 2019-01-13 15:20:57 -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
7b9f8d5c0f BaseMapper: Minor code refactoring/simplification 2019-01-06 15:02:12 -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
512d971b87 MMC3: Fixed Low G Man (by allowing the use of the WRAM disabled flag with non-NES 2.0 headers) 
This may break MMC6 games that aren't in the game DB unless they are converted to NES 2.0 headers and set to submapper 1.
 2018-09-07 17:17:35 -04:00
Sour
787617edad Fixed crash when loading rom with no CHR ROM and no CHR RAM 2018-08-22 18:30:13 -04:00
Sour
4bbef43e99 Linux: Fixed compilation errors/warnings 2018-08-20 19:25:02 -04:00
Sour
726a4121dd Debugger: Improved CPU/PPU memory mapping display 2018-08-19 13:53:20 -04:00
Sour
e72f8377cd Header Editor: Fixed issues when using header editor with a headerless rom 2018-08-13 18:35:56 -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
6fc37e980f History Viewer: Prevent history viewer window from overwriting .sav files 2018-07-22 17:31:50 -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
47fbe93b62 Added support for VS DualSystem (WIP - dual video/audio, input, save states, movies & netplay working) 2018-07-08 10:28:48 -04:00
Sour
04310eddb4 Core refactoring (remove static variables) - WIP 2018-07-08 10:28:47 -04:00
Sour
9bcde89188 Rework notification registration to avoid a lot of potential deadlock situations 2018-06-29 00:06:12 -04:00
Sour
bdfa554a15 Linux: Fixed a few more warnings found with -Wextra 2018-06-25 16:21:15 -04:00
Sour
1e90a71394 Linux: Removed -Wno-switch option and fixed warnings 2018-06-25 15:56:05 -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