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module lzc_4 (
input [3:0] a,
output [1:0] c,
output v
);
logic a0;
logic a1;
logic a2;
logic a3;
logic s0;
logic s1;
logic s2;
logic s3;
logic s4;
assign a0 = a[0];
assign a1 = a[1];
assign a2 = a[2];
assign a3 = a[3];
assign s0 = a3 | a2;
assign s1 = a1 | a0;
assign s2 = s1 | s0;
assign s3 = (~s0) & a1;
assign s4 = a3 | s3;
assign v = s2;
assign c[0] = s4;
assign c[1] = s0;
endmodule
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