114 lines
4.6 KiB
C
114 lines
4.6 KiB
C
//*****************************************************************************
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//
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// fpu.h - Prototypes for the floatint point manipulation routines.
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//
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// Copyright (c) 2011-2013 Texas Instruments Incorporated. All rights reserved.
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// Software License Agreement
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the
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// distribution.
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//
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// Neither the name of Texas Instruments Incorporated nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// This is part of revision 1.1 of the Tiva Peripheral Driver Library.
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//
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//*****************************************************************************
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#ifndef __DRIVERLIB_FPU_H__
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#define __DRIVERLIB_FPU_H__
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//*****************************************************************************
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//
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// If building with a C++ compiler, make all of the definitions in this header
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// have a C binding.
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//
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//*****************************************************************************
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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//*****************************************************************************
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//
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// Values that can be passed to FPUHalfPrecisionSet as the ui32Mode parameter.
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//
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//*****************************************************************************
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#define FPU_HALF_IEEE 0x00000000
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#define FPU_HALF_ALTERNATE 0x04000000
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//*****************************************************************************
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//
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// Values that can be passed to FPUNaNModeSet as the ui32Mode parameter.
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//
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//*****************************************************************************
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#define FPU_NAN_PROPAGATE 0x00000000
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#define FPU_NAN_DEFAULT 0x02000000
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//*****************************************************************************
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//
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// Values that can be passed to FPUFlushToZeroModeSet as the ui32Mode
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// parameter.
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//
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//*****************************************************************************
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#define FPU_FLUSH_TO_ZERO_DIS 0x00000000
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#define FPU_FLUSH_TO_ZERO_EN 0x01000000
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//*****************************************************************************
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//
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// Values that can be passed to FPURoundingModeSet as the ui32Mode parameter.
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//
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//*****************************************************************************
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#define FPU_ROUND_NEAREST 0x00000000
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#define FPU_ROUND_POS_INF 0x00400000
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#define FPU_ROUND_NEG_INF 0x00800000
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#define FPU_ROUND_ZERO 0x00c00000
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//*****************************************************************************
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//
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// Prototypes.
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//
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//*****************************************************************************
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extern void FPUEnable(void);
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extern void FPUDisable(void);
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extern void FPUStackingEnable(void);
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extern void FPULazyStackingEnable(void);
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extern void FPUStackingDisable(void);
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extern void FPUHalfPrecisionModeSet(uint32_t ui32Mode);
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extern void FPUNaNModeSet(uint32_t ui32Mode);
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extern void FPUFlushToZeroModeSet(uint32_t ui32Mode);
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extern void FPURoundingModeSet(uint32_t ui32Mode);
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//*****************************************************************************
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//
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// Mark the end of the C bindings section for C++ compilers.
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//
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//*****************************************************************************
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#ifdef __cplusplus
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}
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#endif
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#endif // __DRIVERLIB_FPU_H__
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