frame pointer


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frame pointer

A pointer to the current activation record in an implementation of a block structured language.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
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s->pfn // address of virtual member function : ((**(base + s->vt_off))[s->index]).pfn; pfn (this); On the SPARC architecture, GCC compiles the above call into the following assembly language code, where OFFSET is the offset of the signature pointer p relative to the frame pointer (%f P)