Project configuration

wfconfig.toml serves as a project-wide configuration file.

This section describes the cartridge header of the output .ws/.wsc file.

The following fields can affect cartridge loaders and/or the boot ROM, and thus should be configured correctly:

• save_type - The save type of your cartridge. The following values are supported:
  • “NONE” - no save memory,
  • “SRAM_8KB” - 8 kilobytes of SRAM,
  • “SRAM_32KB” - 32 kilobytes of SRAM,
  • “SRAM_128KB” - 128 kilobytes of SRAM,
  • “SRAM_256KB” - 256 kilobytes of SRAM,
  • “SRAM_512KB” - 512 kilobytes of SRAM,
  • “EEPROM_128B” - 128 bytes of EEPROM,
  • “EEPROM_2KB” - 2048 bytes of EEPROM,
  • “EEPROM_1KB” - 1024 bytes of EEPROM.
• vertical - Set to true if your program starts out in the vertical orientation; this adjusts the boot ROM's splash screen appropriately.
• mapper - The mapper used by your cartridge. The following values are supported:
  • “2001” - Bandai 2001 mapper. Supports EEPROM communication.
  • “2003” - Bandai 2003 mapper. Supports RTC communication, GPIO pins.
• rom_banks - The number of 64KB ROM banks used by your project. By default, this value is calculated automatically as your project grows in scope.

The following fields have no effect on execution and exist solely as metadata:

• publisher_id, game_id, game_version - Numeric fields describing the game's unique ID.
• color - Set to true if your program uses Color modes (regardless of whether it's mandatory or optional).

The following fields are meant for advanced users only. Don't touch these unless you're building custom hardware.

• rom_bus_width - Can be set to 8 or 16.
• rom_speed - Set to 2 to enable an extra waitstate, slowing ROM reads down.
• unlock_internal_eeprom - Set to true if your program intends to read to the normally locked area of internal EEPROM. Note that, if used irresponsibly, this can lead to a brick on Color consoles!
• disable_custom_boot_splash - Set to true to force using the default boot splash on Color consoles, as opposed to the one stored in the internal EEPROM. May be used to unbrick consoles in some cases.
• rom_reserve_bootrom_area - Set to true to exclude the last 8 KiB of each linear ROM block (memory addresses 0xFE000 - 0xFFFFF) from allocation. Note that this still allows using this area for ROM0/ROM1 allocations, as accessing them does not overlap the boot ROM.

libws comes with some configuration options of its own, using defines:

• -DLIBWS_USE_EXTBANK - if defined, the ws_bank ROM memory wrappers/functions in <ws/memory.h> will use the 16-bit bank I/O ports exclusive to the 2003 mapper, as opposed to the default 8-bit bank I/O ports.