#JNES EMULATOR LAG SOFTWARE#

Use NES/HVC-101 (Top-loader / AV Famicom) behavior: The NES and Famicom both had 2 different releases - their original model and the вЂњtop loaderвЂќ model. There is usually no reason to enable this. By turning this option on, Mesen will default to using the MMC3AвЂ™s IRQ behavior instead. By default, Mesen uses the IRQ behavior for versions B and C. Use alternative MMC3 IRQ behavior: The MMC3 has a number of different variants (A, B and C). These options are marked with the (not recommended) tag in the UI. Several options in this section should NOT be enabled to avoid issues in some games вЂ“ they are available here stricly for the sake of completeness (and testing homebrew software, etc.). This option lets you select MesenвЂ™s behavior when initializing RAM - set all bits to 0, set all bits to 1, or randomize the value of each bit. This glitch is known to occur in some licensed NES games and usually results in a single scanline displaying incorrectly.Дefault power on state for RAM: On a console, the RAMвЂ™s state at power on is undetermined and relatively random. This glitch is known to occur in some licensed NES games and usually results in a single frame displaying with an incorrect scroll position.Д®nable PPU $2000/$2005/$2006 first-write scroll glitch emulation: When enabled, a known hardware bug that occurs on the first write to the $2005/$2006 registers (or any write to the $2000 register) when the write occurs at cycle during rendering. When enabled, some test roms may randomily fail from one reset to another, because of the different alignments (this can also happen on the NES.)Д®nable PPU $2006 scroll glitch emulation: When enabled, a known hardware bug that occurs when the $2006 register is written at specific cycles during rendering. Randomize power-on/reset CPU/PPU alignment: Each time the NES is reset, the CPU and PPU run with a slightly different and random alignment. This is useful when developing homebrew software. This option causes Mesen to randomize the power-on state of the most common mappers. Randomize power-on state for mappers: Cartridges often have a random state at power-on and need to be fully initialized before being used. There is a corresponding option to break on decayed OAM reads available in the debugger to help find and debug OAM decay-related bugs.

#JNES EMULATOR LAG SOFTWARE#

No known game relies on this вЂ“ the option is offered here mostly for the sake of homebrew software testing. This causes the values in OAM RAM to decay to a specific value after a certain amount of time has elapsed since the last time the value was read or written (which may cause sprite-related glitches to appear on the screen). Setting the power on state for RAM to random values is also recommended.Д®nable OAM RAM decay: On all models, OAM RAM decays whenever rendering is disabled. When developing software for the NES, enabling these options can help you catch bugs that would otherwise be invisible in most emulators and only show up on real hardware.

Jnes emulator lag