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Internet Message Format  |  1992-07-29  |  925 b 
  1. Path: sparky!uunet!stanford.edu!rutgers!ub!acsu.buffalo.edu!spt
  2. From: spt@acsu.buffalo.edu (Scott P. Toenniessen)
  3. Newsgroups: comp.os.cpm
  4. Subject: Re: Undocumented Z80 Opcodes
  5. Message-ID: <Bs60q5.Fpq@acsu.buffalo.edu>
  6. Date: 29 Jul 92 19:27:41 GMT
  7. References: <9207271025.AA20373@LL.MIT.EDU>
  8. Sender: nntp@acsu.buffalo.edu
  9. Organization: UB
  10. Lines: 11
  11. Nntp-Posting-Host: autarch.acsu.buffalo.edu
  12.  
  13. In article <9207271025.AA20373@LL.MIT.EDU> sage@LL.MIT.EDU (Jay Sage) writes:
  14. >
  15. >   I completely agree with Joe's implication that unsupported opcodes and
  16. >unsupported programming language features simply should NOT be used.  As far
  17.  
  18. I would agree with that too.  Pretty funny that Tandy (king of telling
  19. owners, "Don't use undocumented ROM/Op system calls!") used undocumented
  20. codes in Model III TRSDOS.  When the Z180 speed up board came out for the
  21. Mod. 4, this became readily apparant.
  22.  
  23.                                    Scott
  24.