diff options
| author | Yuval Adam <yuv.adm@gmail.com> | 2012-10-29 21:36:23 +0200 |
|---|---|---|
| committer | Yuval Adam <yuv.adm@gmail.com> | 2012-10-29 21:36:23 +0200 |
| commit | 44b979ac3dc53b29ee8176517b7d9a10935630c0 (patch) | |
| tree | 03c256e5e19ac2be9d19b3d4638cdf233b0ee4e9 /driverlib/fpu.h | |
| parent | 8ced6b65a22e0c392bc31288b2eb3f713a0fc477 (diff) | |
Initial code
Diffstat (limited to 'driverlib/fpu.h')
| -rw-r--r-- | driverlib/fpu.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/driverlib/fpu.h b/driverlib/fpu.h new file mode 100644 index 0000000..3cf105a --- /dev/null +++ b/driverlib/fpu.h @@ -0,0 +1,112 @@ +//*****************************************************************************
+//
+// 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 __FPU_H__
+#define __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 // __FPU_H__
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