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This repository has been archived by the owner on Oct 4, 2020. It is now read-only.

Mesen 0.9.9

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@SourMesen SourMesen released this 01 Feb 20:44
· 81 commits to master since this release

WARNING: Save states created with version 0.9.8 (or older) will no longer work in 0.9.9.

New Features

  • Run Ahead: Added run ahead support (in Emulation settings)
  • Emulation: Added 2 new options to emulate known PPU hardware bugs
  • Emulation: Added option to emulate CPU/PPU alignments
  • UI: Added load state and save state menus (with previews and timestamps)
  • Mappers: Added support for Study Box roms (.studybox files)
  • UNROM512/GTROM: Added support for self-flashing
  • Debugger: Various fixes and improvements
  • Event Viewer: Improved filtering options and added the ability to display NTSC borders

Bug Fixes

  • CPU: Rewrote DMC and OAM DMA logic to better match hardware behavior/timings
  • CPU: Fixed an issue with NMIs turning into IRQs (when turning the NMI flag off at the wrong moment)
  • PPU: Fixed PPU OAM fetch pattern on pre-render scanline
  • PPU: Fixed some PPU timings to better match hardware
  • MC-ACC: Improved MC-ACC (licensed MMC3 clone) emulation
  • MMC5: Rewrote a large portion of the code to better match hardware behavior and quirks
  • Mappers: Fixed/improved emulation of a number of mappers used by unlicensed games
  • NSF: Fixed an issue that caused problems with some FDS NSF files
  • Linux: Fixed bug when using nvidia's drivers that caused the screen to be completely black

SHA-256 (exe): a480c42b28424ffc9517e003b458926d7920e860494103f1e0805e6ad972c08b