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-@node machine,,syscalls,Top
-@chapter NEC V70 Specific Functions
-
-The NEC V70 has machine instructions for fast IEEE floating point,
-including operations normally provided by the library.  
-
-When you use the @file{/usr/include/fastmath.h} header file, the
-names of several library math functions are redefined to call the
-@code{fastmath} routine (using the corresponding V70 machine instructions)
-whenever possible.
-
-For example,
-@example
-
-#include <fastmath.h>
-
-double sqsin(x)
-double x;
-@{
-  return sin(x*x);
-@}
-
-@end example
-expands into the code
-@example
-
-@dots{}
-double sqsin(x)
-double x;
-@{
-  return fast_sin(x*x);
-@}
-
-@end example
-
-The library has an entry @code{fast_sin} which uses the machine
-instruction @code{fsin.l} to perform the operation.  Note that the
-built-in instructions cannot call @code{matherr} or set @code{errno}
-in the same way that the C coded functions do.  Refer to a V70
-instruction manual to see how errors are generated and handled.
-
-Also, the library provides true @code{float} entry points.  The
-@code{fast_sinf} entry point really performs a @code{fsin.s}
-operation.  Because of this, the instructions are only useful when
-using code compiled with an ANSI C compiler.  The prototypes
-and definitions for the floating point versions of the math library
-routines are only defined if compiling a module with an ANSI C
-compiler.
-
-@page
-@section Entry points 
-The functions provided by @file{fastmath.h} are
-@example
-
- double fast_sin(double);	/*	fsin.l */
- double fast_cos(double);	/*	fcos.l */
- double fast_tan(double);	/*	ftan.l */
- double fast_asin(double);	/*	fasin.l */
- double fast_acos(double);	/*	facos.l */
- double fast_atan(double);	/*	fatan.l */
- double fast_sinh(double);	/*	fsinh.l */
- double fast_cosh(double);	/*	fcosh.l */
- double fast_tanh(double);	/*	ftanh.l */
- double fast_asinh(double);	/*	fasinh.l */
- double fast_acosh(double);	/*	facosh.l */
- double fast_atanh(double);	/*	fatanh.l */
- double fast_fabs(double);	/*	fabs.l */
- double fast_sqrt(double);	/*	fsqrt.l */
- double fast_exp2(double);	/*	fexp2.l */
- double fast_exp10(double);	/*	fexp10.l */
- double fast_expe(double);	/*	fexpe.l */
- double fast_log10(double);	/*	flog10.l */
- double fast_log2(double);	/*	flog2.l */
- double fast_loge(double);	/*	floge.l */
-
- float fast_sinf(float);	/*	fsin.s */
- float fast_cosf(float);	/*	fcos.s */
- float fast_tanf(float);	/*	ftan.s */
- float fast_asinf(float);	/*	fasin.s */
- float fast_acosf(float);	/*	facos.s */
- float fast_atanf(float);	/*	fatan.s */
- float fast_sinhf(float);	/*	fsinh.s */
- float fast_coshf(float);	/*	fcosh.s */
- float fast_tanhf(float);	/*	ftanh.s */
- float fast_asinhf(float);	/*	fasinh.s */
- float fast_acoshf(float);	/*	facosh.s */
- float fast_atanhf(float);	/*	fatanh.s */
- float fast_fabsf(float);	/*	fabs.s */
- float fast_sqrtf(float);	/*	fsqrt.s */
- float fast_exp2f(float);	/*	fexp2.s */
- float fast_exp10f(float);	/*	fexp10.s */
- float fast_expef(float);	/*	fexpe.s */
- float fast_log10f(float);	/*	flog10.s */
- float fast_log2f(float);	/*	flog2.s */
- float fast_logef(float);	/*	floge.s */
-
-@end example
-
-