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https://github.com/YosysHQ/yosys
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68 lines
1.8 KiB
Bash
Executable file
68 lines
1.8 KiB
Bash
Executable file
#!/bin/bash
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trap 'echo "ERROR in sv_implicit_ports.sh" >&2; exit 1' ERR
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# Simple case
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../../yosys -f "verilog -sv" -qp "prep -flatten -top top; select -assert-count 1 t:\$add" - <<EOT
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module add(input [7:0] a, input [7:0] b, output [7:0] q);
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assign q = a + b;
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endmodule
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module top(input [7:0] a, output [7:0] q);
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wire [7:0] b = 8'd42;
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add add_i(.*);
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endmodule
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EOT
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# Generate block
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../../yosys -f "verilog -sv" -qp "prep -flatten -top top; select -assert-count 1 t:\$add" - <<EOT
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module add(input [7:0] a, input [7:0] b, output [7:0] q);
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assign q = a + b;
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endmodule
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module top(input [7:0] a, output [7:0] q);
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generate
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if (1) begin:ablock
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wire [7:0] b = 8'd42;
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add add_i(.*);
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end
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endgenerate
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endmodule
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EOT
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# Missing wire
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((../../yosys -f "verilog -sv" -qp "hierarchy -top top" - || true) <<EOT
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module add(input [7:0] a, input [7:0] b, output [7:0] q);
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assign q = a + b;
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endmodule
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module top(input [7:0] a, output [7:0] q);
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add add_i(.*);
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endmodule
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EOT
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) 2>&1 | grep -F "ERROR: No matching wire for implicit port connection \`b' of cell top.add_i (add)." > /dev/null
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# Incorrectly sized wire
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((../../yosys -f "verilog -sv" -qp "hierarchy -top top" - || true) <<EOT
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module add(input [7:0] a, input [7:0] b, output [7:0] q);
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assign q = a + b;
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endmodule
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module top(input [7:0] a, output [7:0] q);
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wire [6:0] b = 6'd42;
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add add_i(.*);
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endmodule
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EOT
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) 2>&1 | grep -F "ERROR: Width mismatch between wire (7 bits) and port (8 bits) for implicit port connection \`b' of cell top.add_i (add)." > /dev/null
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# Defaults
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../../yosys -f "verilog -sv" -qp "prep -flatten -top top; select -assert-count 1 t:\$add" - <<EOT
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module add(input [7:0] a = 8'd00, input [7:0] b = 8'd01, output [7:0] q);
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assign q = a + b;
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endmodule
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module top(input [7:0] a, output [7:0] q);
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add add_i(.*);
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endmodule
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EOT
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