1 /* $OpenBSD: feget.c,v 1.1.1.1 2018/08/21 18:35:18 bluhm Exp $ */ 2 /* 3 * Copyright (c) 2018 Alexander Bluhm <bluhm@openbsd.org> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include <sys/param.h> 19 20 #include <err.h> 21 #include <fenv.h> 22 #include <stdio.h> 23 24 int 25 main(int argc, char *argv[]) 26 { 27 fenv_t fenv; 28 size_t i; 29 30 if (fegetenv(&fenv)) 31 err(1, "fegetenv"); 32 33 printf("control\t%08x\n", fenv.__x87.__control); 34 printf("status\t%08x\n", fenv.__x87.__status); 35 printf("tag\t%08x\n", fenv.__x87.__tag); 36 for (i = 0; i < nitems(fenv.__x87.__others); i++) 37 printf("others[%zu]\t%08x\n", i, fenv.__x87.__others[i]); 38 printf("mxcsr\t%08x\n", fenv.__mxcsr); 39 40 return 0; 41 } 42