[Oberon] Re: CF-IDE adapter (Postscript)

shark at gulfnet.sd64.bc.ca shark at gulfnet.sd64.bc.ca
Thu Nov 24 18:45:34 CET 2005


Postscript ... 

ss> It seems, however, that NO does not use virtual memory at all
(or does it?). 

We see in PC Native 05.01.2003
MODULE ATADisks; (** non-portable *)	(* cp/pjm/prk *)
   ...
CONST   ...	MaxPRD = 3;	(* <= 4 *)   ...
TYPE   ...	PRDT = POINTER TO RECORD
		prd: ARRAY MaxPRD OF RECORD   ...
PROCEDURE TransferDMA   ...	(* init prdt *)   ...
.

So a PRDT is used in TransferDMA even if there is no VM.

                        ... Peter
                        
Desktops.OpenDoc  http://carnot.pathology.ubc.ca/



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