With the recent revelations that the Dreamcast can boot CDR's and the VERY
useful DC programming info here:

http://marcus.mangakai.org/dc/sw.html (Software)

http://marcus.mangakai.org/dc/hw.html (hardware)

Add that to the fact that the Official Sega Dreamcast development kit has
been leaked to:  http://www.acl.com.hk/realm/dc_devkit.zip

And also the fact that SH4 evaluation boards appear to be working
(http://www.netbsd.org/Ports/sh3/)

How possible is it that NetBSD *could* be compiled for the Dreamcast.
Ignoring the obvious question 'why?' (Cause you can of course!) it *should*
be possible and perhaps not even VERY dificult, as I believe the SH4 is
backwards compatible with the SH3 to a certain degree.

Here is a basic rundown of the Dreamcast's hardware:

CPU:

200 MHz/360 MIPS at 3.3V I/O, 1.8V internal
16 x 32-bit general purpose registers
32 x 32-bit single-precision floating point registers
16-bit fixed instruction length for high code density
5 stage pipeline
On-chip cache, 8KB instruction and 16KB data

16MB System RAM

NEC PowerVR2 Video @ 8MB

Yamaha Audio 2MB (Yamaha AICA sound system)

12x CD / GD drive

56k Hardware Modem (US model LAN/DSL/etc adaptors available soon)

4 Controller Inputs (of use to this port, a Keyboard is available and a
mouse will be shortly)

Serial Port (http://marcus.mangakai.org/dc/serifc.html)

Certainly seem's it could handle it, from a hardware point of view. Any
thoughts?