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C166: OBTAINING THE SEGMENT OFFSET OF AN SFR


Information in this article applies to:

  • C166 Version 4.03

QUESTION

I am trying to obtain the segment offset of an SFR. When I compile my project it generates an application error. I am using the intrinsic _sof_() function. What am I doing wrong?

ANSWER

The _sof_ function is not required for SFRs. Instead write something like:

DSTP0 = (unsigned int) &S0TBUF;     // S0TBUF is an SFR.

This will give you the segment offset for the SFR.

MORE INFORMATION

  • Refer to _sof_ in the C166 User's Guide.

Last Reviewed: Friday, July 15, 2005


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