Module Name: src
Committed By: rin
Date: Fri Sep 2 12:24:54 UTC 2022
Modified Files:
src/sys/arch/powerpc/fpu: fpu_implode.c
Log Message:
Fix off-by-one error in exponent when round a double to the
largest normalized value; QNaN was wrongly generated here.
To generate a diff of this commit:
cvs rdiff -u -r1.15 -r1.16 src/sys/arch/powerpc/fpu/fpu_implode.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/powerpc/fpu/fpu_implode.c
diff -u src/sys/arch/powerpc/fpu/fpu_implode.c:1.15 src/sys/arch/powerpc/fpu/fpu_implode.c:1.16
--- src/sys/arch/powerpc/fpu/fpu_implode.c:1.15 Fri Sep 2 12:22:49 2022
+++ src/sys/arch/powerpc/fpu/fpu_implode.c Fri Sep 2 12:24:54 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: fpu_implode.c,v 1.15 2022/09/02 12:22:49 rin Exp $ */
+/* $NetBSD: fpu_implode.c,v 1.16 2022/09/02 12:24:54 rin Exp $ */
/*
* Copyright (c) 1992, 1993
@@ -46,7 +46,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fpu_implode.c,v 1.15 2022/09/02 12:22:49 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fpu_implode.c,v 1.16 2022/09/02 12:24:54 rin Exp $");
#include <sys/types.h>
#include <sys/systm.h>
@@ -502,7 +502,7 @@ zero: return HI_WORD(sign);
}
if (fprf)
fe->fe_cx |= FPRF_SIGN(sign);
- return HI_WORD(sign | DBL_EXP(DBL_EXP_INFNAN) | DBL_MASK) |
+ return HI_WORD(sign | DBL_EXP(DBL_EXP_INFNAN - 1) | DBL_MASK) |
LO_WORD(~0);
}
if (fprf)
