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msvcrt: Implement _clearfp for arm. 

Signed-off-by: Martin Storsjö <martin@martin.st>
Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Martin Storsjö 2021-08-03 15:56:11 +03:00 committed by Alexandre Julliard
parent 70400c9368
commit 1b6f59b5d0
1 changed files with 12 additions and 0 deletions
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12
dlls/msvcrt/math.c
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@ -5260,6 +5260,18 @@ unsigned int CDECL _clearfp(void)
if (fpsr & 0x80) flags |= _SW_DENORMAL;
fpsr &= ~0x9f;
__asm__ __volatile__( "msr fpsr, %0" :: "r" (fpsr) );
#elif defined(__arm__) && !defined(__SOFTFP__)
DWORD fpscr;
__asm__ __volatile__( "vmrs %0, fpscr" : "=r" (fpscr) );
if (fpscr & 0x1) flags |= _SW_INVALID;
if (fpscr & 0x2) flags |= _SW_ZERODIVIDE;
if (fpscr & 0x4) flags |= _SW_OVERFLOW;
if (fpscr & 0x8) flags |= _SW_UNDERFLOW;
if (fpscr & 0x10) flags |= _SW_INEXACT;
if (fpscr & 0x80) flags |= _SW_DENORMAL;
fpscr &= ~0x9f;
__asm__ __volatile__( "vmsr fpscr, %0" :: "r" (fpscr) );
#else
FIXME( "not implemented\n" );
#endif