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src
neuron
plasticity
stdp
stdp_typedefs.h
Go to the documentation of this file.
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/*
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* Copyright (c) 2014 The University of Manchester
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*
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* Licensed under the 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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* https://www.apache.org/licenses/LICENSE-2.0
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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, either express or implied.
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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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#ifndef _STDP_TYPEDEFS_H_
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#define _STDP_TYPEDEFS_H_
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//---------------------------------------
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// Macros
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//---------------------------------------
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// Fixed-point number system used STDP
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#define STDP_FIXED_POINT 11
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#define STDP_FIXED_POINT_ONE (1 << STDP_FIXED_POINT)
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// Helper macros for 16-bit fixed-point multiplication
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#define STDP_FIXED_MUL_16X16(a, b) maths_fixed_mul16(a, b, STDP_FIXED_POINT)
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#define S1615_TO_STDP_RIGHT_SHIFT 4
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static
inline
accum
mul_accum_fixed
(accum a, int32_t stdp_fixed) {
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return
a * kbits(stdp_fixed <<
S1615_TO_STDP_RIGHT_SHIFT
);
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}
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#endif
// _STDP_TYPEDEFS_H_
mul_accum_fixed
static accum mul_accum_fixed(accum a, int32_t stdp_fixed)
Multiply an accum by an STDP fixed point and return an accum.
Definition
stdp_typedefs.h:45
S1615_TO_STDP_RIGHT_SHIFT
#define S1615_TO_STDP_RIGHT_SHIFT
Definition
stdp_typedefs.h:42
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