From: fjkraan@xs4all.nl   
      
   On 2013-08-17 00:41, spacewar@gmail.com wrote:   
   > Did Tandy ever provide any updates or addenda to cover changes to TRSDOS-II   
   (for Model II/12/16/6000) versions 4.1 or later?   
   >   
   > I've noticed that in the supplied programs in TRSDOS-II 4.2, there are a lot   
   of uses of SVC 31, which is not documented in my copy of the TRSDOS-II   
   Reference Manual.   
   >   
      
   There is a "MODEL II OWNER's MANUAL SUPPLEMENT" for the Model 16 or   
   enhanced model II from 1982 which lists some additional SVCs, but not   
   31. Maybe the 4.x versions are newer than that.   
      
   > Thanks!   
   > Eric   
   >   
      
   Fred Jan   
      
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