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NOP Vs _nop_()?

Suresh Kumar Kavula

In one of my project I am talking with MX909 Driver IC with C51 ucontroller. To initialize MX909 if I write module in Assembly language it's working fine. Once I replaced with C same module it's not working.

The only difference I can make for both assembly and C languages is NOP and _nop_() instruction. Is both instructions will take same number of machine cycles?

Thanks,
Suresh Kumar Kavula

Parents
  • 0 in reply to HansBernhard Broeker

    "There's no guaranteed whatsoever that the code output in #pragma SRC mode is the same as otherwise."

    There is also no guarantee whatsoever that the results will remain the same on subsequent re-compiles!

    How many times does "no guarantee whatsoever" have to be said make the point that this is a bad idea...?

Reply
  • 0 in reply to HansBernhard Broeker

    "There's no guaranteed whatsoever that the code output in #pragma SRC mode is the same as otherwise."

    There is also no guarantee whatsoever that the results will remain the same on subsequent re-compiles!

    How many times does "no guarantee whatsoever" have to be said make the point that this is a bad idea...?

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