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When you run GCC, you can use command-line options to choose
machine-specific details. For information on all the GCC
command-line options, see
section `GNU CC Command Options' in Using GNU CC.
Floating point subroutines
Two kinds of floating point subroutines are useful with GCC:
-
Software implementations of the basic functions (floating-point
multiply, divide, add, subtract), for use when there is no hardware
floating-point support.
-
General-purpose mathematical subroutines.
The Developer's Kit from Cygnus Support includes an implementation of
the standard C mathematical subroutine library. See section `Mathematical Functions' in The Cygnus C Math Library.
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