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Simplify, now that rounding mode defines match the hardware bits.

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This commit is contained in:
martin 2015-01-13 11:16:06 +00:00
parent 5b588e717d
commit f91d4e28bb
1 changed files with 5 additions and 10 deletions
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15
lib/libm/arch/hppa/fenv.c
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@ -1,4 +1,4 @@
/* $NetBSD: fenv.c,v 1.1 2014/12/27 16:54:02 martin Exp $ */
/* $NetBSD: fenv.c,v 1.2 2015/01/13 11:16:06 martin Exp $ */
/*-
* Copyright (c) 2004-2005 David Schultz <das@FreeBSD.ORG>
@ -24,7 +24,7 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: fenv.c,v 1.1 2014/12/27 16:54:02 martin Exp $");
__RCSID("$NetBSD: fenv.c,v 1.2 2015/01/13 11:16:06 martin Exp $");
#include <assert.h>
#include <fenv.h>
@ -41,11 +41,6 @@ __RCSID("$NetBSD: fenv.c,v 1.1 2014/12/27 16:54:02 martin Exp $");
#define FE_ROUND_MASK (FE_TONEAREST | FE_DOWNWARD | \
FE_UPWARD | FE_TOWARDZERO)
/*
* Our constants start at bit 0, while the fpsr bitfield starts at 9
*/
#define FE_ROUND_SHIFT 9
/* Load lower 32 bits from floating-point state register */
static inline uint32_t
readfpsr(void)
@ -209,7 +204,7 @@ fegetround(void)
r = readfpsr();
return (r>>FE_ROUND_SHIFT) & FE_ROUND_MASK;
return r & FE_ROUND_MASK;
}
/*
@ -227,8 +222,8 @@ fesetround(int round)
return -1;
r = readfpsr();
r &= ~(FE_ROUND_MASK << FE_ROUND_SHIFT);
r |= round << FE_ROUND_SHIFT;
r &= ~FE_ROUND_MASK;
r |= round;
writefpsr(r);
/* Success */