e415d48872
Bumping libc files for unsupported architectures, to simplify merging. A bunch of small fixes: * in libutil update * the macro in endian.h * some undefined types due to clear separation from host. * Fix a warning for cdbr.c Some modification which were required for the new build system: * inclusion path for const.h in sconst, still hacky * Removed default malloc.c which conflicts on some occasions.
30 lines
750 B
C
30 lines
750 B
C
/* $NetBSD: fpsetsticky.c,v 1.6 2012/03/23 09:34:09 skrll Exp $ */
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/* $OpenBSD: fpsetsticky.c,v 1.4 2004/01/05 06:06:16 otto Exp $ */
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/*
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* Written by Miodrag Vallat. Public domain
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: fpsetsticky.c,v 1.6 2012/03/23 09:34:09 skrll Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include <sys/types.h>
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#include <ieeefp.h>
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fp_except
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fpsetsticky(fp_except mask)
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{
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uint64_t fpsr;
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fp_except old;
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__asm volatile("fstd %%fr0,0(%1)" : "=m" (fpsr) : "r" (&fpsr) : "memory");
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old = (fp_except)(fpsr >> 59) & 0x1f;
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fpsr = (fpsr & 0x07ffffff00000000LL) | ((uint64_t)(mask & 0x1f) << 59);
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__asm volatile("fldd 0(%0),%%fr0" : : "r" (&fpsr) : "memory");
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return (old);
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}
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