Hi,

I'd been playing asc and got the playing (with coughing,
anyway) raw sound file. So I plan to implement the audio
interrupt and have some questions.

In my understanding, the ROM sound driver uses one byte of
ASCBase + 0x801 to detect if playing sound is done.  The
VBL_Task routine clears the byte of that address and main
driver routine updates the sound buffer area.

To add this feature into NetBSD/mac68k, I looked at
mac68k/via.c and changed 5th record of the VIA2 interrupt
handler table from via2_noint to snd_intr then added
function snd_intr looks like below but it doesn't work.

/*ARGSUSED*/
void
snd_intr(bitarg)
	void *bitarg;
{
	caddr_t ad = (caddr_t)0x50f14801;

	*ad = 0;
	via2_reg(vPCR) &= ~V2IF_ASC;
	printf("snd_intr()\n");
}

I think that it is needed to map the flag address, but I
have no idea to do so.  Am I correct?  What should I do
next?

--
SUNAGAWA Keiki <kei_sun@ba2.so-net.ne.jp>
Happy Hacking!