ym2612.h File Reference

YM2612 support. More...

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Macros
#define	YM2612_BASEPORT   0xA04000
	YM2612 base port address.
#define	YM2612_writeSafe(port, data)
#define	YM2612_writeRegSafe(part, reg, data)

Functions
void	YM2612_reset (void)
	Reset YM2612 chip.
u8	YM2612_read (const u16 port)
	Read YM2612 port.
u8	YM2612_readStatus ()
	Return YM2612 status (busy and timer flag).
void	YM2612_write (const u16 port, const u8 data)
	Write YM2612 port.
void	YM2612_writeReg (const u16 part, const u8 reg, const u8 data)
	Set YM2612 register value.
void	YM2612_enableDAC (void)
	Enable YM2612 DAC.
void	YM2612_disableDAC (void)
	Disable YM2612 DAC.

Detailed Description

YM2612 support.

Author

Stephane Dallongeville

Date

08/2011

This unit provides access to the YM2612 through the 68000 CPU.

Macro Definition Documentation

YM2612_writeRegSafe

#define YM2612_writeRegSafe	(		part,
			reg,
			data )

Value:

_Pragma("GCC error \"This definition is deprecated, use YM2612_writeReg(..) instead.\"")

YM2612_writeSafe

#define YM2612_writeSafe	(		port,
			data )

Value:

_Pragma("GCC error \"This definition is deprecated, use YM2612_write(..) instead.\"")

Function Documentation

YM2612_read()

u8 YM2612_read

(

const u16

port

)

Read YM2612 port.

Parameters

port	Port number (0-3)

Returns

YM2612 port value.

Reading YM2612 always return YM2612 status (busy and timer flag) whatever is the port read.

YM2612_readStatus()

u8 YM2612_readStatus

(

)

Return YM2612 status (busy and timer flag).

Returns

YM2612 status.

YM2612_write()

void YM2612_write	(	const u16	port,
		const u8	data )

Write YM2612 port.

Parameters

port	Port number (0-3)
data	Data to write

YM2612_writeReg()

void YM2612_writeReg	(	const u16	part,
		const u8	reg,
		const u8	data )

Set YM2612 register value.

Parameters

part	part number (0-1)
reg	register number
data	register value