From: sfuld@alumni.cmu.edu.invalid   
      
   On 8/21/2025 1:49 PM, MitchAlsup wrote:   
   >   
   > Greetings everyone !   
      
   snip   
      
   > My 66000 ISA is in "pretty good shape" having almost no changes over   
   > the last 6 months, with only specification clarifications. So it was time   
   > to work on the non-ISA parts.   
      
   You mention two non-ISA parts that you have been working on.  I thought   
   I would ask you for your thoughts on another non-ISA part.  Timers and   
   clocks.  Doing a "clean slate" ISA frees you from being compatible with   
   lots of old features that might have been the right thing to do back   
   then, but aren't now.   
      
   So, how many clocks/timers should a system have?  What precision?  How   
   fast does the software need to be able to access them?  I presume you   
   need some comparitors (unless you use count down to zero).  Should the   
   comparisons be one time or recurring?  What about syncing with an   
   external timer?  There are many such decisions to make, and I am curious   
   as to your thinking on the subject.   
      
   If you haven't gotten around to working on this part of the system, just   
   say so.   
      
      
   --   
     - Stephen Fuld   
   (e-mail address disguised to prevent spam)   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)