This project is in Arduino, with heavy C additions. You can build it yourself if you want to add support for a different board, or try different settings.
First up - add support for your board in Arduino so you can compile & upload code. Then load all the Arcada libraries.
Download/clone the Arcada nofrendo port from here, rename the folder nofrendo_arcada and open it in Arduino.
CPU Speed must be the highest possible, we like to overclock at 200MHz. Optimizations must be -Ofast we don't recommend -funroll-loops as it doesn't seem to speed up play and it makes the build very large. TinyUSB is required in order to have the disk drive show up.
#elif defined(ADAFRUIT_PYGAMER_M4_EXPRESS) || defined(ADAFRUIT_PYBADGE_M4_EXPRESS) #define EMU_SCALEDOWN 2 #define USE_FLASH_FOR_ROMSTORAGE // slows it down, but bigger roms! #define DEFAULT_FLASH_ADDRESS (0x40000-2048) // make sure this is after this programs memory, with unrolled loops we're at 222,192! we need a little more than 256KB since roms have 10 extra bytes #define USE_SAVEFILES #define USE_SRAM #else
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EMU_SCALEDOWNis for taking the NES output and scaling it down to 160x128 display. Set to 1 if you have a 320x240 display! -
USE_FLASH_FOR_ROMSTORAGEputs the ROM in FLASH, required for games over like 48KB, but if you want highest speed you can comment this out to use RAM/malloc. -
DEFAULT_FLASH_ADDRESS- Where we start burning the ROM in. This must be after the bootlader (16KB) + arduino code (~200KB) The default is pretty good, don't mess unless you know the math. -
USE_SAVEFILESis the save/restore support, takes a ton of RAM up when we save because it memory maps the whole file so comment out if you are running out of RAM -
USE_SRAMturns on/off the SRAM implementation of the emulator. Keep on please.
If you have a board with an SD card, you can enable SD storage instead of QSPI, info on how to do that is here.
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