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Richard Erlacher
01/22/12 18:38
Read: 540 times
Denver, Co

#185630 - It's the instruction set ...
Responding to: ???'s previous message
While i freely admit I've used 805x-core MCU less than others, I freely admit that it has the most comfortable instruction set for microcontrol application that I've encountered. It makes no attempt at being a general-purpose computing engine, hence, makes no compromises in favor of that goal.

It has "features" that are, perhaps, a bit arcane, particularly from the viewpoint of general-purpose processor user, but, one doesn't have to use what one doesn't like. Some architectures have features or instructions that, by their very nature, get in the way of doing things simply and clearly. This one does not.

Years ago, I decided on the 805x because it had the MUL and DIV instructions, purchased a 'C' compiler, yet never have used any of them. The I/O-targeted instructions are so inherently "useable" that the thing is just "handy."

Since I use the MCU as just another piece of hardware, rather than as a computer, this has worked out well for me.


List of 14 messages in thread
Why is the MCS-51 family your uC family of preference?      Jon Wilder      01/22/12 12:30      
   My Choice      Michael Karas      01/22/12 13:06      
   Just a question of preferences      Per Westermark      01/22/12 13:09      
   It's the instruction set ...      Richard Erlacher      01/22/12 18:38      
   new '51 derivatives appearing monthly      Erik Malund      01/23/12 06:40      
      Instruction Set        Michael Karas      01/23/12 08:07      
         Forgot one!      Rob Klein      01/23/12 14:19      
         The PIC is as Old as the 8051      Neil Kurzman      01/23/12 14:31      
            AVR is hardly "new" in semiconductor terms...      Andy Neil      01/23/12 16:47      
            It may be older ...      Richard Erlacher      01/23/12 23:30      
               indeed it is..      Valentin Angelovski      01/24/12 01:19      
   a questionaire from the past      Jan Waclawek      01/23/12 13:30      
   Why is it my preference?      Valentin Angelovski      01/23/12 19:54      
   why?      Andy Peters      01/24/12 10:11      

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