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???
04/30/05 00:29
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#92629 - fair?
Responding to: ???'s previous message
I do not think th '51 RTOS issues are just Horsepower. It is the stack pointer 256 byte not 64K. Also, a lack of pointer opcodes. Look at the 6800 and Z80 instruction set. They are "real CPUs". How easy and how fast a task switch can be done is the key.

But the '51 can twiddle bit better. with only 256 opcodes you have to loose something.

List of 77 messages in thread
TopicAuthorDate
RTOS            01/01/70 00:00      
   The typical tradeoffs....            01/01/70 00:00      
   OS vs. language            01/01/70 00:00      
      os vs language            01/01/70 00:00      
         OS are used at same place where you use            01/01/70 00:00      
         OS and the '51            01/01/70 00:00      
            OS and the '51            01/01/70 00:00      
               511 pages            01/01/70 00:00      
               URL please            01/01/70 00:00      
                  web link            01/01/70 00:00      
                     web links            01/01/70 00:00      
                     NicheTask != Nucleus            01/01/70 00:00      
            Ok why RTOS?            01/01/70 00:00      
               one strange company            01/01/70 00:00      
               No big kernels for little MCUs            01/01/70 00:00      
               thats nice            01/01/70 00:00      
               OS irrelevant            01/01/70 00:00      
         pllease Explain            01/01/70 00:00      
            re pllease Explain            01/01/70 00:00      
         RTOS when?            01/01/70 00:00      
            not when, but how            01/01/70 00:00      
               Job and Tasks            01/01/70 00:00      
                  name one            01/01/70 00:00      
                     Example            01/01/70 00:00      
                        if you need it            01/01/70 00:00      
                           Another Example            01/01/70 00:00      
                              an example            01/01/70 00:00      
                  Problem with Interrupt priorities            01/01/70 00:00      
                     Same priority ?            01/01/70 00:00      
   LOOKS LIKE HOMEWORK!!!!!!            01/01/70 00:00      
      RE LOOKS LIKE HOMEWORK!!!!!!            01/01/70 00:00      
         Dont get angry.            01/01/70 00:00      
   On an 8051            01/01/70 00:00      
   multicoder            01/01/70 00:00      
      quite likely            01/01/70 00:00      
   Pre-emptive multitasking            01/01/70 00:00      
      RTOS-VxWorks            01/01/70 00:00      
         some posts are off-topic            01/01/70 00:00      
         Not very useful            01/01/70 00:00      
            'C' is not the only language            01/01/70 00:00      
         U cn us RTlinux and VxWorks            01/01/70 00:00      
         RTOS            01/01/70 00:00      
            honesty            01/01/70 00:00      
   8 bit RToS            01/01/70 00:00      
      How could I have been so wrong!            01/01/70 00:00      
         Perhaps you practice :))            01/01/70 00:00      
            Well practiced!            01/01/70 00:00      
               Task Switching Overhead            01/01/70 00:00      
               Has the valve been invented yet?            01/01/70 00:00      
      Tunnel vision            01/01/70 00:00      
         because of tunnel vision            01/01/70 00:00      
            Before PCs            01/01/70 00:00      
               fair?            01/01/70 00:00      
                  Sure its fair            01/01/70 00:00      
                     Show me the apps            01/01/70 00:00      
                        Save your appetite            01/01/70 00:00      
                     8051 task switch            01/01/70 00:00      
                        Modern derivatives have 4 priority level            01/01/70 00:00      
                        Four banks and context switch            01/01/70 00:00      
   anyway            01/01/70 00:00      
   Lemme see.....            01/01/70 00:00      
   So in fact            01/01/70 00:00      
      What is Real Time            01/01/70 00:00      
         real time            01/01/70 00:00      
            Confused            01/01/70 00:00      
               answers            01/01/70 00:00      
                  RE: Answers            01/01/70 00:00      
                     extern - intern            01/01/70 00:00      
                        Agreed            01/01/70 00:00      
            Why not            01/01/70 00:00      
               Give up            01/01/70 00:00      
                  Deifinition of a Poor Engineer            01/01/70 00:00      
                  so do I            01/01/70 00:00      
                     8051 RTOS Contract            01/01/70 00:00      
                        a real speed demon            01/01/70 00:00      
                           RTOS/Multitasking discussed so many time            01/01/70 00:00      
                              Yes            01/01/70 00:00      

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