$divfloor

$divfloor (A, B, Y)

Division with floored result (rounded towards negative infinity).

Simulation model (Verilog)

Listing 289 simlib.v:1121

module \$divfloor (A, B, Y);

    parameter A_SIGNED = 0;
    parameter B_SIGNED = 0;
    parameter A_WIDTH = 0;
    parameter B_WIDTH = 0;
    parameter Y_WIDTH = 0;

    input [A_WIDTH-1:0] A;
    input [B_WIDTH-1:0] B;
    output [Y_WIDTH-1:0] Y;

    generate
        if (A_SIGNED && B_SIGNED) begin:BLOCK1
            localparam WIDTH =
                    A_WIDTH >= B_WIDTH && A_WIDTH >= Y_WIDTH ? A_WIDTH :
                    B_WIDTH >= A_WIDTH && B_WIDTH >= Y_WIDTH ? B_WIDTH : Y_WIDTH;
            wire [WIDTH:0] A_buf, B_buf, N_buf;
            assign A_buf = $signed(A);
            assign B_buf = $signed(B);
            assign N_buf = (A[A_WIDTH-1] == B[B_WIDTH-1]) || A == 0 ? A_buf : $signed(A_buf - (B[B_WIDTH-1] ? B_buf+1 : B_buf-1));
            assign Y = $signed(N_buf) / $signed(B_buf);
        end else begin:BLOCK2
            assign Y = A / B;
        end
    endgenerate

endmodule

Note

This page was auto-generated from the output of help $divfloor.