Difference between revisions of "OSBYTE &75"

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Line 3: Line 3:
  
 
     X=b0 Print output enabled by VDU2
 
     X=b0 Print output enabled by VDU2
       b1 Unused
+
       b1 Scrolling disabled
 
       b2 Paged scrolling selected by VDU14
 
       b2 Paged scrolling selected by VDU14
 
       b3 Text window in force ie.software scrolling
 
       b3 Text window in force ie.software scrolling
Line 10: Line 10:
 
       b6 Cursor editing in progress
 
       b6 Cursor editing in progress
 
       b7 Screen disabled with VDU21
 
       b7 Screen disabled with VDU21
    (Acorn MOS 1.20)
 
      b1 Scrolling disabled
 
  
 
==See Also==
 
==See Also==

Revision as of 15:35, 8 March 2015

OSBYTE &75 (117) - Read VDU Status Byte

   X=b0 Print output enabled by VDU2
     b1 Scrolling disabled
     b2 Paged scrolling selected by VDU14
     b3 Text window in force ie.software scrolling
     b4 In a shadow mode
     b5 In VDU5 mode
     b6 Cursor editing in progress
     b7 Screen disabled with VDU21

See Also

Jgharston 21:53, 26 May 2009 (UTC)