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???
01/27/05 21:35
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#85969 - How?
Responding to: ???'s previous message
Ian Bell said:
I am currently on target for the scheduler and despatcher to fit in less than 200 bytes of code and for 8 tasks to require just 24 bytes of RAM.


That'd be impressive; but I'm curious as to how you get 8 tasks to require just 24 bytes of RAM? Aside from not protecting the stack, it would seem you're not protecting any of the "R" registers? Won't that lead to some nasty conflicts when tasks switch?

Regards,
Craig Steiner


List of 49 messages in thread
TopicAuthorDate
Computed Call            01/01/70 00:00      
   Computed Call            01/01/70 00:00      
   simulate an LCALL @A+DPTR instruction?            01/01/70 00:00      
   Solution            01/01/70 00:00      
      Computed LCALL            01/01/70 00:00      
      Computed LCALL            01/01/70 00:00      
         Table offset            01/01/70 00:00      
            x2, not x3            01/01/70 00:00      
   what is the problem            01/01/70 00:00      
      My Problem            01/01/70 00:00      
         never heard of it            01/01/70 00:00      
            It is.......            01/01/70 00:00      
               RTOS            01/01/70 00:00      
                  8051 RTOs Limitations/Issues/Opportunity            01/01/70 00:00      
                     How?            01/01/70 00:00      
                        Decisions, decisions            01/01/70 00:00      
                           Small systems - task scheduling            01/01/70 00:00      
                              Worth it?            01/01/70 00:00      
                                 Scheduler            01/01/70 00:00      
                                    Scheduler            01/01/70 00:00      
                           running small in a big way            01/01/70 00:00      
                              Example            01/01/70 00:00      
                                 in very small chips            01/01/70 00:00      
                                    In all sorts of sizes of chips            01/01/70 00:00      
                                       time dependednt            01/01/70 00:00      
                                          RTOS or Not            01/01/70 00:00      
                                             opinion piece            01/01/70 00:00      
                                                fact piece            01/01/70 00:00      
                                                Opinion piece            01/01/70 00:00      
                                             suggestion piece            01/01/70 00:00      
                                             reasons            01/01/70 00:00      
                                    Polite discussion            01/01/70 00:00      
                                       Politeness            01/01/70 00:00      
                                          Thanks            01/01/70 00:00      
                                             Politeness            01/01/70 00:00      
                                                What are you Rabbiting on about?            01/01/70 00:00      
                                                   Close but no Cigar            01/01/70 00:00      
                                                      Rabbit food            01/01/70 00:00      
                                                         Plessey            01/01/70 00:00      
                                                      small world            01/01/70 00:00      
                                                         Smaller than you imagine!            01/01/70 00:00      
            I use the computed LCALL ...            01/01/70 00:00      
               go it            01/01/70 00:00      
                  Call tabs in-line            01/01/70 00:00      
                     abbreviated            01/01/70 00:00      
                        ... and further optimized...            01/01/70 00:00      
                     has been already disscussed            01/01/70 00:00      
   Scheduler of course            01/01/70 00:00      
      Scheduler            01/01/70 00:00      

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