49 lines
1.9 KiB
C
49 lines
1.9 KiB
C
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/**************************************************
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* This file include a data structure to describe
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* the internal structure of a multiplexer
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* using a generic graph representation
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*************************************************/
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#ifndef MUX_ARCH_H
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#define MUX_ARCH_H
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#include <vector>
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#include "circuit_library.h"
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/* Strong Ids for MUXes */
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struct mux_id_tag;
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typedef vtr::StrongId<mux_id_tag> MuxId;
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class MuxGraph {
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private: /* data types used only in this class */
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enum e_mux_graph_node_type {
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MUX_INPUT_NODE,
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MUX_INTERNAL_NODE,
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MUX_OUTPUT_NODE
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};
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private: /* Internal data */
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std::vector<size_t> node_ids_; /* Unique ids for each node */
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std::vector<size_t> node_levels_; /* at which level, each node belongs to */
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std::vector<enum e_mux_graph_node_type> node_types_; /* type of each node, input/output/internal */
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std::vector<std::vector<size_t>> node_in_edges; /* ids of incoming edges to each node */
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std::vector<std::vector<size_t>> node_out_edges; /* ids of outgoing edges from each node */
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std::vector<size_t> edge_ids_; /* Unique ids for each edge */
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std::vector<enum e_spice_model_pass_gate_logic_type> edge_types_; /* type of each edge: tgate/pass-gate */
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std::vector<size_t> edge_sram_ids_; /* ids of SRAMs that control the edge */
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std::vector<size_t> sram_ids_; /* ids of SRAMs (configuration memories) */
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/* fast look-up */
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typedef std::vector<std::vector<std::vector>>> NodeLookup;
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mutable NodeLookup node_lookup_; /* [num_levels][num_branches][num_nodes_per_branch] */
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};
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class MuxLib {
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private: /* Internal data */
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vtr::vector<MuxId, MuxGraph> mux_graphs_; /* Graphs describing MUX internal structures */
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vtr::vector<MuxId, CircuitModelId> circuit_model_ids_; /* ids in the circuit library, each MUX graph belongs to*/
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}
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#endif
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