sPyNNaker neural_modelling 7.3.1
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synapse_structure_weight_impl.h
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1/*
2 * Copyright (c) 2015 The University of Manchester
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
19#ifndef _SYNAPSE_STRUCUTRE_WEIGHT_IMPL_H_
20#define _SYNAPSE_STRUCUTRE_WEIGHT_IMPL_H_
21
22//---------------------------------------
23// Structures
24//---------------------------------------
26typedef weight_t plastic_synapse_t;
27
30
31// The final state is just a weight as this is
33typedef weight_t final_state_t;
34
35#include "synapse_structure.h"
36
37//---------------------------------------
38// Synapse interface functions
39//---------------------------------------
45 plastic_synapse_t synaptic_word, index_t synapse_type) {
46 return weight_get_initial(synaptic_word, synapse_type);
47}
48
49//---------------------------------------
54 update_state_t state) {
55 return weight_get_final(state);
56}
57
58//---------------------------------------
63 final_state_t final_state) {
64 return final_state;
65}
66
67//---------------------------------------
72 final_state_t final_state) {
73 return final_state;
74}
75
76//---------------------------------------
81 weight_t weight) {
82 return weight;
83}
84
85//---------------------------------------
89static inline weight_t synapse_structure_get_weight(
90 plastic_synapse_t synaptic_word) {
91 return synaptic_word;
92}
93
94static inline void synapse_structure_decay_weight(
95 update_state_t *state, uint32_t decay) {
96 return weight_decay(state, decay);
97}
98
99static inline accum synapse_structure_get_update_weight(update_state_t state) {
100 return weight_get_update(state);
101}
102
103#endif // _SYNAPSE_STRUCUTRE_WEIGHT_IMPL_H_
uint32_t index_t
#define decay(x, d)
This is a type-generic decay "function".
Definition decay.h:118
API for synaptic state.
static plastic_synapse_t synapse_structure_get_final_synaptic_word(final_state_t final_state)
Get the final plastic synapse data from the final state.
weight_t final_state_t
Both the weight and the synaptic word.
static plastic_synapse_t synapse_structure_create_synapse(weight_t weight)
Create the initial plastic synapse data.
static update_state_t synapse_structure_get_update_state(plastic_synapse_t synaptic_word, index_t synapse_type)
Get the update state from the synapse structure.
static weight_t synapse_structure_get_final_weight(final_state_t final_state)
Get the final weight from the final state.
weight_t plastic_synapse_t
Plastic synapse types are just weights;.
weight_state_t update_state_t
The update state is purely a weight state.
static final_state_t synapse_structure_get_final_state(update_state_t state)
Get the final state from the update state.
static weight_t synapse_structure_get_weight(plastic_synapse_t synaptic_word)
Get the current synaptic weight from the plastic synapse data.
Plastic synapse contains normal 16-bit weight and an accumulator.
static weight_t weight_get_final(weight_state_t new_state)
Gets the final weight.
static weight_state_t weight_get_initial(weight_t weight, index_t synapse_type)
Gets the initial weight state.
static void weight_decay(weight_state_t *state, int32_t decay)
Decay the weight inside the state by multiplication.
static accum weight_get_update(weight_state_t state)
Get the weight inside during update in STDP fixed point format.
The current state data for the rule.