[Note - This is hopelessly outdated.]


SATURN is the pseudoprocessor in the E10-KL10 program.  It's kinda a play 
on DEC's never-ten (Jupiter), and the fact that I name everything I can 
after Sailor Senshi...  (If you don't get that refrence, you don't know 
me well enough!)

Chances are good I'll never hit the KL right on the head.  Therefore, 
Saturn will always have her own oddities, and I'm attempting to document 
them here.  This is also a hackers' notes type doco.

As a sidenote, I see the 10 family like this:

KA10	-	First one.
KI10	-	This one had the best panel.
KL10	-	Large 10.  Microcoded and such.
KS10	-	Small 10.  It's odd.
KC10	-	Jupiter, the Never-Ten.

And I humbly add mine:

KH10	-	(Hint: Hotaru == Saturn, and KS10 is taken)

There were others, the XKL TD machines, the Foonly, and some I'm prolly 
not aware of, but those are beyond my scope.

And now, for the actual notes...

#1:	DEALING WITH MEMORY:
	All addresses passed to the do_memory_read and do_memory_write
	functions are assumed to be full global addresses.  Don't cheat
	and use in-section addresses - the effective address calculation
	(which is gross and hairy and undoubtably buggy, I'll rewrite it
	later) returns global addresses. (I think.)
	Only AC refrences can get around this rule.

#2:	MISCELLANEOUS ARITHMETIC ODDITIES:
	The math routines probably lose horribly, and I don't understand them.
	They're prolly fairly rife with odd screws.  Therefore, Saturn
	will undoubtably have some very odd large lossage with math and the
	associated flags...

#3:	THE FPD FLAG
	F_FPD is never used, to to my different implementation of PI.
	I save the state of the microcode (do_microsave();), deal with
	the interrupt, then restore the state. (undo_microsave();).