Subversion Repositories 8bit_vedic_multiplier

module vedic4x4(input [3:0] a,b, output [7:0] prod);

        wire [3:0] mult0, mult1, mult2, mult3;

        wire [3:0] sum0;

        wire [5:0] sum1, sum2;

        wire carry0, carry1, carry2;

        vedic2x2 VD0(a[1:0],b[1:0],mult0);

        vedic2x2 VD1(a[1:0],b[3:2],mult1);

        vedic2x2 VD2(a[3:2],b[1:0],mult2);

        vedic2x2 VD3(a[3:2],b[3:2],mult3);

        ripple_adder_4bit RA0({2'b0,mult0[3:2]},mult2,1'b0,sum0,carry0);

        ripple_adder_6bit RA1({2'b0,mult1},{mult3,2'b0},1'b0,sum1,carry1);

        ripple_adder_6bit RA2({2'b0,sum0},sum1,1'b0,sum2,carry2);

        assign prod = {sum2,mult0[1:0]};

endmodule