reactos/sdk/lib/crt/math/arm/floor.s

33 lines
786 B
ArmAsm

/*
* COPYRIGHT: BSD - See COPYING.ARM in the top level directory
* PROJECT: ReactOS CRT library
* PURPOSE: Implementation of floor
* PROGRAMMER: Timo Kreuzer (timo.kreuzer@reactos.org)
* Original implementation: dawncrow
* SOURCE: MinGW-w64\mingw-w64-crt\math\floor.S
*/
/* INCLUDES ******************************************************************/
#include <kxarm.h>
/* CODE **********************************************************************/
TEXTAREA
LEAF_ENTRY floor
vmrs r1, fpscr
bic r0, r1, #0x00c00000
orr r0, r0, #0x00800000 /* Round towards Minus Infinity */
vmsr fpscr, r0
vcvtr.s32.f64 s0, d0
vcvt.f64.s32 d0, s0
vmsr fpscr, r1
bx lr
LEAF_END floor
END
/* EOF */