/* * Written by J.T. Conklin, Apr 11, 1995 * Public domain. */ #include #include #if defined(LIBC_SCCS) && !defined(lint) static char rcsid[] = "$OpenBSD: flt_rounds.c,v 1.3 1997/08/01 21:36:28 deraadt Exp $"; #endif /* LIBC_SCCS and not lint */ 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__("cfc1 %0,$31" : "=r" (x)); return map[x & 0x03]; }