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[/] [or1k/] [trunk/] [uclinux/] [uC-libc/] [sysdeps/] [m68k/] [__setfpucw.c] - Rev 1765
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/* Copyright (C) 1993 Olaf Flebbe This file is part of the Linux C Library. The Linux C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The Linux C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. */ #include <fpu_control.h> void __setfpucw(unsigned long fpu_control) { unsigned long fpcr; /* If user supplied _fpu_control, use it ! */ if (!fpu_control) { /* use linux defaults */ fpu_control = _FPU_DEFAULT; } /* Get Floating Point Control Register */ __asm__ volatile ("fmovel %!,%0" : "=g" (fpcr) : ); /* mask in */ fpcr &= _FPU_RESERVED; fpcr = fpcr | (fpu_control & ~_FPU_RESERVED); /* set Control Register */ __asm__ volatile ("fmovel %0,%!" : : "g" (fpcr)); }