Zilog Z8F0130 - Manual (Page 447)

UM013037-1212 Nonlocal Jumps
Zilog Developer Studio II – Z8 Encore!
User Manual
423
Power
Nearest Integer
Nonlocal Jumps
The < setjmp.h > header declares two functions and one type for bypassing the normal
function call and return discipline.
Type
Functions
Variable Arguments
The < stdarg.h > header declares a type and a function and defines two macros for
advancing through a list of arguments whose number and types are not known to the called
function when it is translated.
double log10(double x); Calculates base 10 logarithm of x.
double modf(double value,

double *iptr);
Breaks down x into integer (the value returned by
modf) and fractional (n) parts.
double pow(double x, double y); Calculates x to the y.
double sqrt(double x); Finds square root of x.
double ceil(double x); Finds integer ceiling of x.
double fabs(double x); Finds absolute value of x.
double floor(double x); Finds largest integer less than or equal to x.
double fmod(double x,double y); Finds floating-point remainder of x/y.
jmp_buf An array type suitable for holding the information required to restore a calling
environment.
int setjmp(jmp_buf env); Saves a stack environment.
void longjmp(jmp_buf env, int val); Restores a saved stack
environment.