1/* $NetBSD: fpgetmask.S,v 1.3 2002/06/12 19:17:22 fvdl Exp $ */ 2 3/* 4 * Written by J.T. Conklin, Apr 4, 1995 5 * Public domain. 6 */ 7 8#include <machine/asm.h> 9 10/* 11 * XXX only read x87 control word here. If an application only 12 * uses the fp* interface to manipulate FP bits, it should 13 * always remain in sync with the SSE mxcsr register. 14 */ 15 16#ifdef WEAK_ALIAS 17WEAK_ALIAS(fpgetmask, _fpgetmask) 18ENTRY(_fpgetmask) 19#else 20ENTRY(fpgetmask) 21#endif 22 fnstcw -4(%rsp) 23 movl -4(%rsp),%eax 24 notl %eax 25 andl $63,%eax 26 ret 27