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While SPARC V9 allows tininess to be detected either before or after

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rounding (impl. dep. #55), the SPARC JPS1 responsible for SPARC64 and
UltraSPARC processors defines that in all cases  tininess is detected
before rounding therefore rounding up to the smallest normalized number
should set the underflow flag. This change is needed for using SoftFloat
on sparc64 for reference purposes.

PR:		144900
Submitted by:	Peter Jeremy
This commit is contained in:
Marius Strobl 2010-04-11 20:08:54 +00:00
parent a9ea2209ac
commit b7e9bee71c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=206490
1 changed files with 3 additions and 0 deletions
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3
lib/libc/softfloat/softfloat-specialize
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@ -44,6 +44,9 @@ Underflow tininess-detection mode, statically initialized to default value.
#ifdef SOFTFLOAT_FOR_GCC
static
#endif
#ifdef __sparc64__
int8 float_detect_tininess = float_tininess_before_rounding;
#else
int8 float_detect_tininess = float_tininess_after_rounding;
/*