psg.h File Reference

Defines the music and sound effect processes. More...

#include "global.h"

Functions
void	write_psg (u8 reg, u8 val)
u8	read_psg (u8 reg)
void	set_tone (u8 channel, u32 tuning)
void	set_volume (u8 channel, u8 volume)
void	enable_channel (u8 channel, enum Bool tone_on, enum Bool noise_on)
void	stop_sound ()
void	set_noise (u8 tuning)
void	set_envelope (u8 shape, u16 sustain)
void	bob_sound ()
void	death_sound ()

Detailed Description

Defines the music and sound effect processes.

Group B: Thomas Kapocsi, Sylvie Mills

Author

Sylvie Mills

Function Documentation

bob_sound()

void bob_sound

(

)

Plays the sound effect for when the swimmer bobs up.

death_sound()

void death_sound

(

)

Plays the sound effect for when the player dies.

set_envelope()

void set_envelope	(	u8	shape,
		u16	sustain )

Loads the PSG envelope control registers with the given envelope shape and 16-bit sustain.

set_noise()

void set_noise

(

u8

tuning

)

Loads the noise register with the given tuning.

write_psg()

void write_psg	(	u8	reg,
		u8	val )

Writes the given byte value (0-255) to the given PSG register (0-15). This is a helper routine to be used by the other functions in this module.