fpu.h
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//*****************************************************************************
//
// fpu.h - Prototypes for the floatint point manipulation routines.
//
// Copyright (c) 2011-2012 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// Neither the name of Texas Instruments Incorporated nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// This is part of revision 9453 of the Stellaris Peripheral Driver Library.
//
//*****************************************************************************
#ifndef STELLARIS_FPU_H_
#define STELLARIS_FPU_H_
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
// Values that can be passed to FPUHalfPrecisionSet as the ulMode parameter.
//
//*****************************************************************************
#define FPU_HALF_IEEE 0x00000000
#define FPU_HALF_ALTERNATE 0x04000000
//*****************************************************************************
//
// Values that can be passed to FPUNaNModeSet as the ulMode parameter.
//
//*****************************************************************************
#define FPU_NAN_PROPAGATE 0x00000000
#define FPU_NAN_DEFAULT 0x02000000
//*****************************************************************************
//
// Values that can be passed to FPUFlushToZeroModeSet as the ulMode parameter.
//
//*****************************************************************************
#define FPU_FLUSH_TO_ZERO_DIS 0x00000000
#define FPU_FLUSH_TO_ZERO_EN 0x01000000
//*****************************************************************************
//
// Values that can be passed to FPURoundingModeSet as the ulMode parameter.
//
//*****************************************************************************
#define FPU_ROUND_NEAREST 0x00000000
#define FPU_ROUND_POS_INF 0x00400000
#define FPU_ROUND_NEG_INF 0x00800000
#define FPU_ROUND_ZERO 0x00c00000
//*****************************************************************************
//
// Prototypes.
//
//*****************************************************************************
extern void FPUEnable(void);
extern void FPUDisable(void);
extern void FPUStackingEnable(void);
extern void FPULazyStackingEnable(void);
extern void FPUStackingDisable(void);
extern void FPUHalfPrecisionModeSet(unsigned long ulMode);
extern void FPUNaNModeSet(unsigned long ulMode);
extern void FPUFlushToZeroModeSet(unsigned long ulMode);
extern void FPURoundingModeSet(unsigned long ulMode);
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif /* STELLARIS_FPU_H_ */