empathicqubit/Mesen-X
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2876 commits 2 branches 37 tags 107 MiB
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184 commits

Author SHA1 Message Date
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59fddb7008 PPU: Added option to emulate OAM row corruption when disabling rendering at certain points during rendering 2020-04-30 18:46:03 -04:00
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e586ce7208 PPU: Tweak affected bits for $2006 scroll glitch based on Alien Syndrome (J) behavior (and other hardware tests) 
It looks like the horizontal nametable bit is also affected when the write falls on a coarse scroll increment
 2020-04-24 00:01:40 -04:00
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17c8294f5d MMC5: Improved accuracy (scanline counter, split screen mode, etc.) 2020-01-19 14:45:04 -05:00
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984ce9bd05 PPU: Glitch on $2000 writes at cycle 257 should only corrupt bit 10 of v (not 10+11) 2019-12-25 12:19:16 -05:00
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33a5d3b0c9 PPU: Fixed "remove sprite limit" option not working 2019-12-25 09:30:42 -05:00
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e7ca41987c PPU: Only trigger cycle 257 write glitches when the writes occur while the PPU is rendering 2019-12-24 22:31:43 -05:00
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d84243b8b0 PPU: Prerender scanline sprite fetches should fetch dummy tiles (index $FF) 2019-12-22 17:57:47 -05:00
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f7ff089689 Core: Fix NMI code to better reflect the hardware 
Fixes a crash in Super Chinese 3 caused by the PPU rapidly switching the NMI signal on and then back off (which caused the CPU to incorrectly jump to the IRQ handler and crashed the game)
 2019-11-21 22:33:08 -05:00
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85f4c1cc2f Debugger: Event Viewer - Apply emphasis/grayscale bits to ntsc borders 2019-11-20 18:43:38 -05:00
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8508b211cc Debugger: Event Viewer - Added option to show NTSC borders 
+ Ported most of Mesen-S' event viewer code to allow this to work
 2019-11-19 22:28:45 -05:00
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26773a1ecc CPU: Randomize cpu/ppu alignment on resets (not just power cycle) 2019-11-12 21:03:03 -05:00
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fc7714d6f0 PPU: Added option to emulate the scroll glitch that can occur when writing to 2000/2005/2006 on cycle 256 2019-11-12 21:00:30 -05:00
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36e2d04fe9 Debugger: Added option to break when a $2006 write scroll glitch occurs 2019-11-11 21:10:55 -05:00
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85fd6b36a9 PPU: Implement glitched $2006 address updates when done on X/Y increment cycles 2019-11-11 21:10:50 -05:00
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a72acc9f1a Core: Rewrite DMC/OAM DMA, tweak PPU timings, add option to simulate PPU/CPU alignments 2019-11-11 21:10:47 -05:00
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30c2c8d3bf PPU: Disabling rendering midscreen should set the vram bus to the value of 'v' 
This prevents jittering in the Steins;Gate 8-bit game that doesn't occur on hardware
 2019-10-12 10:58:07 -04:00
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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
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5b80d2fe21 Core: Changed CPU cycle counter to be a 64-bit int (breaks save state compatibility) 2019-05-12 12:28:01 -04:00
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e826d4dfdd PPU: Fixed bug when reading status flag (this disabled blue emphasis). 
Unsure why this line existed - seems to have been added by mistake 5 years ago
 2019-04-12 19:43:03 -04:00
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e758398b8f PPU: Disabling rendering during sprite evaluation causes the OAM address to be incremented by 1 2019-02-02 00:25:08 -05:00
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f6b474569d PPU: Prevent palette writes during HBlank when rendering is enabled 
+ Try to emulate the behavior of $2007 writes during rendering better
 2019-01-27 20:53:25 -05:00
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bdbb16866b Debugger: Fixed "Break on decayed OAM read" option triggering a break when CPU cycle count reached max value 2019-01-14 20:16:26 -05:00
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ec0853fcf1 Debugger: PPU Viewer - Fixed tile/attribute update logic when overclocking is turned on 2019-01-13 20:18:31 -05:00
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72d9e7ee13 Core: Remove old savestate compatibility code 
No longer needed since the previous commit broke compatibility completely.
 2019-01-13 15:20:57 -05:00
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6d693a432d Debugger: Break on decayed OAM read option no longer triggers when sprite rendering is disabled 2019-01-10 18:40:53 -05:00
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40710c3665 Debugger: Allow debugger to peek at APU/PPU registers without altering the state 2018-12-25 00:07:45 -05:00
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937a90626d Debugger: Added option to evaluate all breakpoints on the first cycle of an instruction 2018-12-24 15:21:21 -05:00
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4459b18fa3 Debugger: Added option to display why the debugger breaks (breakpoint, break options, etc.) 2018-12-23 00:10:00 -05:00
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d305abe8fe Debugger: Nametable viewer - Fixed scroll overlay position when game updates scroll offsets mid-frame 2018-09-07 21:10:52 -04:00
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15373016d0 Refactoring - removed statics from EmulationSettings 2018-07-14 18:32:32 -04:00
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36b88ac6af Debugger: Don't auto-start debugger when oam decay is turned on 2018-07-08 10:28:48 -04:00
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9f12f1c756 Debugger: Added option to break on decayed OAM read 2018-07-08 10:28:48 -04:00
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47fbe93b62 Added support for VS DualSystem (WIP - dual video/audio, input, save states, movies & netplay working) 2018-07-08 10:28:48 -04:00
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c877f73891 Split part of MessageManager into non-static NotificationManager 
+ Fixed movie recording/playback (for .mmo files)
 2018-07-08 10:28:47 -04:00
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04310eddb4 Core refactoring (remove static variables) - WIP 2018-07-08 10:28:47 -04:00
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1e90a71394 Linux: Removed -Wno-switch option and fixed warnings 2018-06-25 15:56:05 -04:00
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d179b5e7d1 Fixed uninitialized memory reads 2018-06-13 17:48:52 -04:00
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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
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b641830058 Debugger: Lua - Fixed some bugs/limitations with drawing routines (now works with NTSC filters, etc.) 2018-03-24 10:09:04 -04:00
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981b121848 Debugger: Reduce frame lag between event viewer and main window when running 1 frame at a time 2018-02-23 12:18:12 -05:00
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11c592a622 Debugger: Event viewer improvements/fixes 2018-02-19 23:23:26 -05:00
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d8e00168a4 Debugger: Added "Event Viewer" tool - replaces PPU Register Write Viewer 2018-02-18 23:03:02 -05:00
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fcad33750b Debugger: Added option to show previous frame behind the current frame 2018-02-16 20:05:15 -05:00
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06d7c8f363 Debugger: Added PPU Register Write Viewer to PPU viewer 2018-02-16 17:36:37 -05:00
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a0a6d89416 Input: Fixed extra frame of input lag 2018-01-07 10:31:37 -05:00
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cf0bd50b9e Libretro support (Windows) 2018-01-04 19:03:47 -05:00
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423ac65a7e Debugger: Allow PPU breakpoints to break on $3F00-$3FFF palette ram accesses 2017-12-29 20:03:32 -05:00
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2b851d5d38 Performance: Code optimizations (7-10% faster than 0.9.3) 2017-12-04 00:09:11 -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
b1dd996534 PPU: Fixed "Disable background" option issue with sprite 0 hits 2017-09-28 20:13:21 -04:00