/* * Written by J.T. Conklin, Apr 10, 1995 * Public domain. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/types.h> #include <machine/float.h> static const int map[] = { 1, /* round to nearest */ 0, /* round to zero */ 2, /* round to positive infinity */ 3 /* round to negative infinity */ }; int __flt_rounds() { int x; __asm("st %%fsr,%0" : "=m" (*&x)); return map[(x >> 30) & 0x03]; } |