ARM Technical Support Knowledge Articles

?C? LIBRARY ROUTINES

Applies to: C51 C Compiler

Answer


Information in this article applies to:


QUESTION

I've noticed that the C compiler generates lots of calls to routines that begin with ?C?. What are these routines?

ANSWER

The Keil C compiler uses "helper" routines to perform operations where in-line code would cause program bloat. These routines do things like fetch bytes or words from memory, dereference generic pointers, and so on. These routines are built into the C51 library files that are shipped with the product.

SEE ALSO

Article last edited on: 2008-06-15 23:38:27

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