backends: protobuf: removed protobuf backend

1 files changed, 0 insertions, 175 deletions

diff --git a/misc/yosys.proto b/misc/yosys.proto
deleted file mode 100644
index a583e6265..000000000
--- a/misc/yosys.proto
+++ /dev/null
@@ -1,175 +0,0 @@
-//
-// yosys -- Yosys Open SYnthesis Suite
-//
-// Copyright (C) 2018  Serge Bazanski <q3k@symbioticeda.com>
-//
-// Permission to use, copy, modify, and/or distribute this software for any
-// purpose with or without fee is hereby granted, provided that the above
-// copyright notice and this permission notice appear in all copies.
-//
-// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-//
-
-/// Protobuf definition of Yosys RTLIL dump/restore format for RTL designs.
-
-syntax = "proto3";
-
-package yosys.pb;
-
-// Port direction.
-enum Direction {
-    DIRECTION_INVALID = 0;
-    DIRECTION_INPUT = 1;
-    DIRECTION_OUTPUT = 2;
-    DIRECTION_INOUT = 3;
-}
-
-// A freeform parameter/attribute value.
-message Parameter {
-    oneof value {
-        int64 int = 1;
-        string str = 2;
-    }
-}
-
-// A signal in the design - either a unique identifier for one, or a constant
-// driver (low or high).
-message Signal {
-    // A constant signal driver in the design.
-    enum ConstantDriver {
-        CONSTANT_DRIVER_INVALID = 0;
-        CONSTANT_DRIVER_LOW = 1;
-        CONSTANT_DRIVER_HIGH = 2;
-        CONSTANT_DRIVER_Z = 3;
-        CONSTANT_DRIVER_X = 4;
-    }
-    oneof type {
-        // Signal uniquely identified by ID number.
-        int64 id = 1;
-        // Constant driver.
-        ConstantDriver constant = 2;
-    }
-}
-
-// A vector of signals.
-message BitVector {
-    repeated Signal signal = 1;
-}
-
-// A netlist module.
-message Module {
-    // Freeform attributes.
-    map<string, Parameter> attribute = 1;
-
-    // Named ports in this module.
-    message Port {
-        Direction direction = 1;
-        BitVector bits = 2;
-    }
-    map<string, Port> port = 2;
-
-    // Named cells in this module.
-    message Cell {
-        // Set to true when the name of this cell is automatically created and
-        // likely not of interest for a regular user.
-        bool hide_name = 1;
-        string type = 2;
-        // Set if this module has an AIG model available.
-        string model = 3;
-        // Freeform parameters.
-        map<string, Parameter> parameter = 4;
-        // Freeform attributes.
-        map<string, Parameter> attribute = 5;
-
-        /// Ports of the cell.
-        // Direction of the port, if interface is known.
-        map<string, Direction> port_direction = 6;
-        // Connection of named port to signal(s).
-        map<string, BitVector> connection = 7;
-    }
-    map<string, Cell> cell = 3;
-
-    // Nets in this module.
-    message Netname {
-        // Set to true when the name of this net is automatically created and
-        // likely not of interest for a regular user.
-        bool hide_name = 1;
-        // Signal(s) that make up this net.
-        BitVector bits = 2;
-        // Freeform attributes.
-        map<string, Parameter> attributes = 3;
-    }
-    repeated Netname netname = 4;
-}
-
-// And-Inverter-Graph model.
-message Model {
-    message Node {
-        // Type of AIG node - or, what its' value is.
-        enum Type {
-            TYPE_INVALID = 0;
-            // The node's value is the value of the specified input port bit.
-            TYPE_PORT = 1;
-            // The node's value is the inverted value of the specified input
-            // port bit.
-            TYPE_NPORT = 2;
-            // The node's value is the ANDed value of specified nodes.
-            TYPE_AND = 3;
-            // The node's value is the NANDed value of specified nodes.
-            TYPE_NAND = 4;
-            // The node's value is a constant 1.
-            TYPE_TRUE = 5;
-            // The node's value is a constant 0.
-            TYPE_FALSE = 6;
-        };
-        Type type = 1;
-
-        message Port {
-            // Name of port.
-            string portname = 1;
-            // Bit index in port.
-            int64 bitindex = 2;
-        }
-        message Gate {
-            // Node index of left side of operation.
-            int64 left = 1;
-            // Node index of right side of operation.
-            int64 right = 2;
-        }
-        oneof node {
-            // Set for PORT, NPORT
-            Port port = 2;
-            // Set for AND, NAND.
-            Gate gate = 3;
-        }
-
-        // Set when the node drives given output port(s).
-        message OutPort {
-            // Name of port.
-            string name = 1;
-            // Bit index in port.
-            int64 bit_index = 2;
-        }
-        repeated OutPort out_port = 4;
-    }
-
-    // List of  AIG nodes - each is explicitely numbered by its' index in this
-    // array.
-    repeated Node node = 1;
-}
-
-// A Yosys design netlist dumped from RTLIL.
-message Design {
-    // Human-readable freeform 'remark' string.
-    string creator = 1;
-    // List of named modules in design.
-    map<string, Module> modules = 2;
-    // List of named AIG models in design (if AIG export enabled).
-    map<string, Model> models = 3;
-}