NetBSD 4.99.70 (KOHJINSHA_AUDIO) #24: Mon Jul 28 04:10:21 JST 2008
        ryo@moveq.execsw.org:/usr/src/sys/arch/i386/compile/KOHJINSHA_AUDIO
total memory = 1007 MB
avail memory = 982 MB
timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
KOHJINSHA Co.,Ltd SA Series (Rev 1.00)
mainbus0 (root)
cpu0 at mainbus0: AMD 586-class, 498MHz, id 0x5a2
	:
	:
gcscaudio0 at pci0 dev 15 function 3: AMD Geode CS5536 Audio
gcscaudio0: interrupting at irq 5
gcscaudio0: ac97: Avance Logic ALC655 codec; no 3D stereo
gcscaudio0: ac97: ext id 9c4<AC97_23,LDAC,SDAC,CDAC,SPDIF>
audio0 at gcscaudio0: full duplex, independent
	:

レジスタまわりは終わり。あとはDMA。
雑音なら鳴るようになったので、もうちょっとだな。