2575604b41
git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1321 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
109 lines
4.2 KiB
C
109 lines
4.2 KiB
C
/*
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* Copyright (c) 2005-2011 Imperas Software Ltd., www.imperas.com
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*
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* YOUR ACCESS TO THE INFORMATION IN THIS MODEL IS CONDITIONAL
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* UPON YOUR ACCEPTANCE THAT YOU WILL NOT USE OR PERMIT OTHERS
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* TO USE THE INFORMATION FOR THE PURPOSES OF DETERMINING WHETHER
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* IMPLEMENTATIONS OF THE ARM ARCHITECTURE INFRINGE ANY THIRD
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* PARTY PATENTS.
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*
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* THE LICENSE BELOW EXTENDS ONLY TO USE OF THE SOFTWARE FOR
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* MODELING PURPOSES AND SHALL NOT BE CONSTRUED AS GRANTING
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* A LICENSE TO CREATE A HARDWARE IMPLEMENTATION OF THE
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* FUNCTIONALITY OF THE SOFTWARE LICENSED HEREUNDER.
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* YOU MAY USE THE SOFTWARE SUBJECT TO THE LICENSE TERMS BELOW
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* PROVIDED THAT YOU ENSURE THAT THIS NOTICE IS REPLICATED UNMODIFIED
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* AND IN ITS ENTIRETY IN ALL DISTRIBUTIONS OF THE SOFTWARE,
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* MODIFIED OR UNMODIFIED, IN SOURCE CODE OR IN BINARY FORM.
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*
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* Licensed under an Imperas Modfied Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.ovpworld.org/licenses/OVP_MODIFIED_1.0_APACHE_OPEN_SOURCE_LICENSE_2.0.pdf
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied.
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*
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifndef ARM_FPCONSTANTS_H
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#define ARM_FPCONSTANTS_H
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#define ARM_QNAN_DEFAULT_16 0x7e00
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#define ARM_QNAN_DEFAULT_32 0x7fc00000
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#define ARM_QNAN_DEFAULT_64 0x7ff8000000000000ULL
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#define ARM_QNAN_MASK_16 0x0200
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#define ARM_QNAN_MASK_32 0x00400000
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#define ARM_QNAN_MASK_64 0x0008000000000000ULL
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#define ARM_INDETERMINATE_16 0x8000
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#define ARM_INDETERMINATE_32 0x80000000
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#define ARM_INDETERMINATE_64 0x8000000000000000ULL
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#define ARM_MIN_INT16 0x8000
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#define ARM_MIN_INT32 0x80000000
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#define ARM_MIN_INT64 0x8000000000000000ULL
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#define ARM_MAX_INT16 0x7fff
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#define ARM_MAX_INT32 0x7fffffff
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#define ARM_MAX_INT64 0x7fffffffffffffffULL
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#define ARM_MIN_UNS16 0x0000
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#define ARM_MIN_UNS32 0x00000000
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#define ARM_MIN_UNS64 0x0000000000000000ULL
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#define ARM_MAX_UNS16 0xffff
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#define ARM_MAX_UNS32 0xffffffff
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#define ARM_MAX_UNS64 0xffffffffffffffffULL
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//
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// Single precision access macros
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//
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#define ARM_FP32_EXP_BIAS 127
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#define ARM_FP32_EXP_ONES 0xff
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#define ARM_FP32_EXP_SHIFT 23
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#define ARM_FP32_SIGN_SHIFT 31
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#define ARM_FP32_SIGN(_F) (((_F) & 0x80000000) != 0)
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#define ARM_FP32_EXPONENT(_F) (((_F) & 0x7f800000) >> ARM_FP32_EXP_SHIFT)
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#define ARM_FP32_FRACTION(_F) ((_F) & ((1<<ARM_FP32_EXP_SHIFT)-1))
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#define ARM_FP32_PLUS_ZERO (0)
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#define ARM_FP32_MINUS_ZERO (0x80000000)
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#define ARM_FP32_ZERO(_S) ((_S) ? ARM_FP32_MINUS_ZERO : ARM_FP32_PLUS_ZERO)
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#define ARM_FP32_PLUS_INFINITY (0x7f800000)
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#define ARM_FP32_MINUS_INFINITY (0xff800000)
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#define ARM_FP32_INFINITY(_S) ((_S) ? ARM_FP32_MINUS_INFINITY : ARM_FP32_PLUS_INFINITY)
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// Build a fp value from its components
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#define ARM_FP32_EXP_OFFSET (127)
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#define ARM_FP32_VALUE(_S, _E, _F) (ARM_FP32_ZERO(_S) | (((_E) + ARM_FP32_EXP_OFFSET) << 23) | (_F))
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//
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// Half precision access macros
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//
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#define ARM_FP16_EXP_BITS 5
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#define ARM_FP16_EXP_BIAS 15
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#define ARM_FP16_EXP_ONES 0x1f
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#define ARM_FP16_EXP_SHIFT 10
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#define ARM_FP16_SIGN_SHIFT 15
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#define ARM_FP16_EXP_MIN -14
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#define ARM_FP16_EXP_MAX 15
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#define ARM_FP16_SIGN(_F) (((_F) & 0x8000) != 0)
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#define ARM_FP16_EXPONENT(_F) (((_F) & 0x7c00) >> ARM_FP16_EXP_SHIFT)
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#define ARM_FP16_FRACTION(_F) ((_F) & ((1<<ARM_FP16_EXP_SHIFT)-1))
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#define ARM_FP16_PLUS_ZERO (0)
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#define ARM_FP16_MINUS_ZERO (0x8000)
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#define ARM_FP16_ZERO(_S) ((_S) ? ARM_FP16_MINUS_ZERO : ARM_FP16_PLUS_ZERO)
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#define ARM_FP16_MAX_NORMAL (0x7bff)
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#define ARM_FP16_AHP_INFINITY (0x7fff)
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#define ARM_FP16_PLUS_INFINITY (0x7c00)
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#define ARM_FP16_MINUS_INFINITY (0xfc00)
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#define ARM_FP16_INFINITY(_S) ((_S) ? ARM_FP16_MINUS_INFINITY : ARM_FP16_PLUS_INFINITY)
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#endif
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