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Internet Message Format  |  1992-12-22  |  1.1 KB
  1. Path: sparky!uunet!zaphod.mps.ohio-state.edu!saimiri.primate.wisc.edu!ames!pacbell.com!att-out!oucsboss!oucsace!tratclif
  2. From: tratclif@oucsace.cs.ohiou.edu (Tracy Ratcliff)
  3. Newsgroups: comp.sys.cbm
  4. Subject: Re: devicenumber
  5. Keywords: device number
  6. Message-ID: <1992Dec23.001459.22668@oucsace.cs.ohiou.edu>
  7. Date: 23 Dec 92 00:14:59 GMT
  8. References: <6600@pdxgate.UUCP>
  9. Organization: Ohio University CS Dept,. Athens
  10. Lines: 13
  11.  
  12. In article <6600@pdxgate.UUCP> crimson@rigel.cs.pdx.edu (Crimson Knight) writes:
  13. >
  14. >     Does anybody know what location the device number (from the switches) is 
  15. >read into? I really need this for the 1581, but for any drive will do.
  16. >     I looked at zeropage maps for the 1541 and 1571 and they did not show what
  17. >location holds the device number.
  18. >                                         Thanks!
  19. >                                        crimson@rigel.cs.pdx.edu
  20.  
  21. The locations are 119 ($77) which hold device_number + $20 and 120 ($78) which
  22. holds device_number + $40.  They're the same location for any 15xx drive.  119
  23. is the device number for listen, 120 the one for talk.  Anyone know what happens
  24. if they're set to different numbers?
  25.