millfork/docs/stdlib/gb.md

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Game Boy–oriented modules

gb_hardware

The gb_hardware module is imported automatically on Game Boy targets.

TODO

gb_header_small

The gb_header_small module is imported automatically on small Game Boy targets. It contains the default header for 32K Game Boy programs.

gb_joy

Provides an interface for reading joypads that is compatible with the joy module.

alias input_a = input_btn

1 if A button pressed, 0 id not pressed.

byte input_b

1 if B button pressed, 0 id not pressed.

byte input_select

1 if Select button pressed, 0 id not pressed.

byte input_start

1 if Start button pressed, 0 id not pressed.

void read_joy()

Reads the joypad.