> sb1 at isapnp0 port 0x534/4,0x380/12,0x220/16,0xe0c/4 irq 5 drq 0,0
> sb1: sbmatch failed
...
>     So what's necessary to get this "sbmatch" to work?  Or am I going
> about this completely the wrong way?

You just need to make sure the right I/O region (the 0x220 one) gets
passed to the `sb' driver.

But you don't want to do that.  The SB emulation is only 8-bit.  You
want to use the WSS emulation instead.