>>>>> "Miles" == Miles Nordin <carton@Ivy.NET> writes:

  Miles>   o The device is documented.

  Miles>     The DC is unique in this respect, because I think maybe Sega does 
  Miles>     not have the technical/legal power to mask their own CPU's, so the 
  Miles>     SH4 chip has documentation from Hitachi. 

Um.  Nobody¹ masks their own CPU's.  It's simply not cost efficient to
do so.  (It may have been in the early eighties, but not anymore.)
PSX and PSX2 use MIPS CPU's, and it's no problem to get docs for those
either.

  // Marcus


¹ Meaning "Nobody who is not primarily a major semiconductor
manufacturer" of course.  After all, *somebody* has to make them.  :-)