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/* Floating-point constants for the 68881.
Copyright (C) 1992 Free Software Foundation, Inc. */
/* IGNORE($ This is used internally in the library. */
#include <sysdeps/ieee754/fl.h>
/* ansidecl.m4 here inserts the ieee file. Kludge o rama.
$) ENDCOMMENT INCLUDE($sysdeps/ieee754/fl.h$) STARTCOMMENT */
#ifndef __need_HUGE_VAL
#ifdef __GNUC__
#undef FLT_ROUNDS
/* Interrogate the 68881 to find the current rounding mode. */
static __const __inline int
DEFUN_VOID(__flt_rounds)
{
unsigned long int __fpcr;
__asm("fmove%.l fpcr, %0" : "=g" (__fpcr));
switch (__fpcr & (1 | 2))
{
case 0:
return _FLT_ROUNDS_TONEAREST;
case 1:
return _FLT_ROUNDS_TOZERO;
case 2:
return _FLT_ROUNDS_TONEGINF;
case 3:
return _FLT_ROUNDS_TOPOSINF;
default:
return _FLT_ROUNDS_INDETERMINATE;
}
}
#define FLT_ROUNDS (__flt_rounds())
#endif /* GCC. */
#endif /* Don't need HUGE_VAL. */
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