I tried to use TC bba audio device on DEC3000/300
but got the following panic:

---
NetBSD 1.4ZB (DEBONAIR) #52: Sat Jun 24 01:55:32 JST 2000
    tsutsui@debonair:/usr/src/sys/arch/alpha/compile/DEBONAIR
DEC 3000 - M300, 150MHz
[..snip..]
tcasic0 at mainbus0
tc0 at tcasic0: 12.5 MHz clock
[..snip..]
bba0 at ioasic0 offset 0x240000
audio0 at bba0: full duplex
[..snip..]

% cat myu.au > /dev/audio
panic: tc_mem_read_1 not implemented for sparse space
Stopped in tcsh at	cpu_Debugger+0x4:	ret	zero,(ra)
db>
---

Is anyone working to update tc_bus_mem.c to fix this?
Anyway, bba configuration in TCWSCONS should be disabled for now...
---
Izumi Tsutsui
tsutsui@ceres.dti.ne.jp