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C51 - Calculating the parity

Chris s

Has someone a good hint how to implement a parity-calculation of a byte in the most efficient way on an C51-device?

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  • 0 in reply to Andy Neil

    absolutely

    Relying on a register in C is, at best, a kludge.
    Many will not use assembler because they believe that 'portability' is 'interesting' for code for small embedded, BALONEY. The only reason for using C with small embedded is coding and maintenance ease. Of course, a C function not using any I/O for small embedded is somewhat portable, but the C postulate that the whole shebang is portable is totally invalid for small embedded.

    BTW how would ACC = Ralph; george = P; ever be portable.

    Erik

    PS if this is because you can not write it in assembler, I pity you.

Reply
  • 0 in reply to Andy Neil

    absolutely

    Relying on a register in C is, at best, a kludge.
    Many will not use assembler because they believe that 'portability' is 'interesting' for code for small embedded, BALONEY. The only reason for using C with small embedded is coding and maintenance ease. Of course, a C function not using any I/O for small embedded is somewhat portable, but the C postulate that the whole shebang is portable is totally invalid for small embedded.

    BTW how would ACC = Ralph; george = P; ever be portable.

    Erik

    PS if this is because you can not write it in assembler, I pity you.

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