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changeset 1834:87865128c951

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Added defines for bit 2 of IT.DNS, which is track 0 density flag for format
author afra
date Tue, 31 May 2005 15:19:07 +0000
parents ed9f51e468fa
children ee18faf4bc61
files defs/rbfdefs
diffstat 1 files changed, 9 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/defs/rbfdefs	Tue May 31 15:17:27 2005 +0000
+++ b/defs/rbfdefs	Tue May 31 15:19:07 2005 +0000
@@ -68,6 +68,11 @@
 *          2004/04/14  Boisy G. Pitre
 * Added new entries to device descriptor as per OS-9 Level One V2.00.00
 * addendum.  Pointed out by Rodney Hamilton.
+*
+*	   2005/05/31  P.Harvey-Smith.
+* Added defines for bit 2 of IT.DNS, which the format command uses to 
+* determine if a drive should have it's track 0 as single or double density
+*
 
          nam   RBFDefs
          ttl   Random Block File Manager Definitions
@@ -138,6 +143,10 @@
 DNS.STD  equ   %00000000        Single track distance (48/135 tpi)
 DNS.DTD  equ   %00000010        Double track distance (96 tpi)
 
+* Added PHS,2005-05-31, as format seems to use these
+DNS.FM0  equ   %00000000	Single density track 0
+DNS.MFM0 equ   %00000100	Double density track 0
+
 * Floppy disk step rate definitions
 STP.30ms equ   0                30ms step rate
 STP.20ms equ   1                20ms step rate