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https://github.com/YosysHQ/yosys
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Share common tests
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103 changed files with 179 additions and 1317 deletions
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@ -1,13 +0,0 @@
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module top
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(
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input [3:0] x,
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input [3:0] y,
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output [3:0] A,
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output [3:0] B
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);
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assign A = x + y;
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assign B = x - y;
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endmodule
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@ -1,4 +1,4 @@
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read_verilog add_sub.v
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read_verilog ../common/add_sub.v
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hierarchy -top top
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proc
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equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
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@ -1,47 +0,0 @@
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module adff
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( input d, clk, clr, output reg q );
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initial begin
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q = 0;
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end
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always @( posedge clk, posedge clr )
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if ( clr )
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q <= 1'b0;
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else
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q <= d;
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endmodule
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module adffn
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( input d, clk, clr, output reg q );
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initial begin
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q = 0;
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end
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always @( posedge clk, negedge clr )
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if ( !clr )
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q <= 1'b0;
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else
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q <= d;
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endmodule
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module dffs
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( input d, clk, pre, clr, output reg q );
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initial begin
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q = 0;
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end
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always @( posedge clk )
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if ( pre )
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q <= 1'b1;
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else
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q <= d;
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endmodule
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module ndffnr
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( input d, clk, pre, clr, output reg q );
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initial begin
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q = 0;
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end
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always @( negedge clk )
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if ( !clr )
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q <= 1'b0;
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else
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q <= d;
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endmodule
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@ -1,4 +1,4 @@
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read_verilog adffs.v
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read_verilog ../common/adffs.v
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design -save read
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hierarchy -top adff
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@ -1,17 +0,0 @@
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module top (
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out,
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clk,
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reset
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);
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output [7:0] out;
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input clk, reset;
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reg [7:0] out;
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always @(posedge clk, posedge reset)
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if (reset) begin
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out <= 8'b0 ;
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end else
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out <= out + 1;
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endmodule
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@ -1,4 +1,4 @@
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read_verilog counter.v
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read_verilog ../common/counter.v
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hierarchy -top top
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proc
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flatten
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module dff
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( input d, clk, output reg q );
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always @( posedge clk )
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q <= d;
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endmodule
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module dffe
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( input d, clk, en, output reg q );
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initial begin
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q = 0;
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end
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always @( posedge clk )
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if ( en )
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q <= d;
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endmodule
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@ -1,4 +1,4 @@
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read_verilog dffs.v
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read_verilog ../common/dffs.v
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design -save read
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hierarchy -top dff
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@ -1,55 +0,0 @@
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module fsm (
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clock,
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reset,
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req_0,
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req_1,
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gnt_0,
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gnt_1
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);
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input clock,reset,req_0,req_1;
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output gnt_0,gnt_1;
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wire clock,reset,req_0,req_1;
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reg gnt_0,gnt_1;
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parameter SIZE = 3 ;
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parameter IDLE = 3'b001,GNT0 = 3'b010,GNT1 = 3'b100,GNT2 = 3'b101 ;
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reg [SIZE-1:0] state;
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reg [SIZE-1:0] next_state;
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always @ (posedge clock)
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begin : FSM
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if (reset == 1'b1) begin
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state <= #1 IDLE;
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gnt_0 <= 0;
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gnt_1 <= 0;
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end else
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case(state)
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IDLE : if (req_0 == 1'b1) begin
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state <= #1 GNT0;
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gnt_0 <= 1;
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end else if (req_1 == 1'b1) begin
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gnt_1 <= 1;
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state <= #1 GNT0;
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end else begin
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state <= #1 IDLE;
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end
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GNT0 : if (req_0 == 1'b1) begin
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state <= #1 GNT0;
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end else begin
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gnt_0 <= 0;
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state <= #1 IDLE;
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end
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GNT1 : if (req_1 == 1'b1) begin
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state <= #1 GNT2;
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gnt_1 <= req_0;
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end
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GNT2 : if (req_0 == 1'b1) begin
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state <= #1 GNT1;
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gnt_1 <= req_1;
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end
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default : state <= #1 IDLE;
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endcase
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end
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endmodule
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@ -1,4 +1,4 @@
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read_verilog fsm.v
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read_verilog ../common/fsm.v
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hierarchy -top fsm
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proc
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flatten
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module latchp
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( input d, clk, en, output reg q );
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always @*
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if ( en )
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q <= d;
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endmodule
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module latchn
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( input d, clk, en, output reg q );
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always @*
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if ( !en )
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q <= d;
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endmodule
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module latchsr
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( input d, clk, en, clr, pre, output reg q );
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always @*
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if ( clr )
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q <= 1'b0;
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else if ( pre )
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q <= 1'b1;
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else if ( en )
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q <= d;
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endmodule
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@ -1,5 +1,4 @@
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read_verilog latches.v
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read_verilog ../common/latches.v
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design -save read
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hierarchy -top latchp
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module top
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(
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input [0:7] in,
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output B1,B2,B3,B4,B5,B6,B7,B8,B9,B10
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);
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assign B1 = in[0] & in[1];
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assign B2 = in[0] | in[1];
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assign B3 = in[0] ~& in[1];
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assign B4 = in[0] ~| in[1];
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assign B5 = in[0] ^ in[1];
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assign B6 = in[0] ~^ in[1];
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assign B7 = ~in[0];
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assign B8 = in[0];
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assign B9 = in[0:1] && in [2:3];
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assign B10 = in[0:1] || in [2:3];
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endmodule
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@ -1,4 +1,4 @@
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read_verilog logic.v
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read_verilog ../common/logic.v
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hierarchy -top top
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proc
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equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
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module top
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(
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input [5:0] x,
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input [5:0] y,
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output [11:0] A,
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);
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assign A = x * y;
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endmodule
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@ -1,4 +1,4 @@
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read_verilog mul.v
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read_verilog ../common/mul.v
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hierarchy -top top
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proc
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# Blocked by issue #1358 (Missing ECP5 simulation models)
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module mux2 (S,A,B,Y);
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input S;
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input A,B;
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output reg Y;
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always @(*)
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Y = (S)? B : A;
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endmodule
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module mux4 ( S, D, Y );
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input[1:0] S;
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input[3:0] D;
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output Y;
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reg Y;
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wire[1:0] S;
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wire[3:0] D;
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always @*
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begin
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case( S )
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0 : Y = D[0];
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1 : Y = D[1];
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2 : Y = D[2];
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3 : Y = D[3];
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endcase
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end
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endmodule
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module mux8 ( S, D, Y );
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input[2:0] S;
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input[7:0] D;
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output Y;
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reg Y;
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wire[2:0] S;
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wire[7:0] D;
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always @*
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begin
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case( S )
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0 : Y = D[0];
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1 : Y = D[1];
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2 : Y = D[2];
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3 : Y = D[3];
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4 : Y = D[4];
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5 : Y = D[5];
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6 : Y = D[6];
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7 : Y = D[7];
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endcase
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end
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endmodule
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module mux16 (D, S, Y);
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input [15:0] D;
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input [3:0] S;
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output Y;
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assign Y = D[S];
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endmodule
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read_verilog mux.v
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read_verilog ../common/mux.v
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design -save read
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hierarchy -top mux2
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@ -1,16 +0,0 @@
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module top (
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out,
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clk,
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in
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);
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output [7:0] out;
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input signed clk, in;
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reg signed [7:0] out = 0;
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always @(posedge clk)
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begin
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out <= out >> 1;
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out[7] <= in;
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end
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endmodule
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@ -1,4 +1,4 @@
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read_verilog shifter.v
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read_verilog ../common/shifter.v
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hierarchy -top top
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proc
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flatten
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module tristate (en, i, o);
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input en;
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input i;
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output o;
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assign o = en ? i : 1'bz;
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endmodule
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read_verilog tribuf.v
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read_verilog ../common/tribuf.v
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hierarchy -top tristate
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proc
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flatten
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