100 SETTING THE DIRECTORY LENGTH FOR P?S/8 VERSION 8Z DECTAPES
 110 
 120 LAST EDIT:  09-AUG-2015	17:00	CJL
 130 
 140 THIS TAPE IS SET TO THE TC01/TC08 STANDARD OF 2702 BLOCKS.
 150 
 160 THE NUMBER OF DIRECTORY SLOTS IS 60 IN THIS CONFIGURATION.
 170 
 180 PREMIUM DECTAPES ARE OCCASIONALLY AVAILABLE WHICH SUPPORT
 190 3300 BLOCKS.  FOR THAT CONFIGURATION THERE ARE 76 DIRECTORY
 200 SLOTS.
 210 
 220 WHEN RUNNING P?S/8 UNDER THE SIMH PDP-8 SIMULATOR, "FANTASY"
 230 DECTAPES CAN BE DEFINED UP TO AS MANY AS 7776 BLOCKS.  MAXIMUM
 240 DIRECTORY SLOTS [84] IS OBTAINED USING 3500 BLOCKS.  ANY
 250 ADDITIONAL BLOCKS CAN ONLY BE USED FOR EXTENDED-LENGTH FILE
 260 PURPOSES WITH THE OS8CON UTILITY [THE TFS DIRECTORY CANNOT
 270 HOLD MORE THAN 84 FILE SLOTS].
 280 
 290 TO SETUP THE DIRECTORY FOR 84 DIRECTORY SLOTS IN 3500 BLOCKS:
 300 
 310 .BLKODT
 320 
 330 0:0016.175 /0514 0404
 340 0:0016.176 /2700 3500
 350 S
 360 .
 370 
 380 TO SETUP THE DIRECTORY FOR 76 DIRECTORY SLOTS IN 3300 BLOCKS:
 390 
 400 .BLKODT
 410 
 420 0:0016.175 /0514 0434
 430 0:0016.176 /2700 3300
 440 S
 450 .
 460 
 470 TO SETUP THE DIRECTORY FOR 60 DIRECTORY SLOTS IN 2700 BLOCKS:
 480 
 490 .BLKODT
 500 
 510 0:0016.175 /0404 0514
 520 0:0016.176 /3500 2700
 530 S
 540 .
 550 
 560 NOTE:	THE OLD VALUES FOUND WHEN REPLACING DIRECTORY PARAMETERS
 570 	DEPEND ON THE PRIOR USAGE.  THE FIRST TWO EXAMPLES
 580 	ASSUME THE STANDARD SETTING IS BEING CHANGED TO THE NEW
 590 	SETTINGS IN EACH EXAMPLE; THE THIRD EXAMPLE ASSUMES
 600 	RESTORING FROM "FANTASY" SETTINGS TO STANDARD RELEASE
 610 	VALUES.
 620 
 630 NOTE:	THE TFS DIRECTORY IMPOSES BLOCK BOUNDARIES.  AS SUCH, 2702
 640 	BLOCK TAPES ARE TREATED AS 2700 BLOCKS.
 650 
 660 [END-OF-FILE]