i need a verilog code for 8bit signed carry look ahead adder

[thir]

i need a verilog code for 8bit signed carry look ahead adder.....
i dont know how to convert the following code... help me soon....:-(


module cla(sum,c_8,a,b,c0);
input [7:0]a,b;
input c0;
output[7:0]sum;
output c_8;
wire p0,p1,p2,p3,p4,p5,p6,p7,g0,g1,g2,g3,g4,g5,g6,g7;
wire c1,c2,c3,c4,c5,c6,c7,c8;
assign p0=a[0]^b[0],
p1=a[1]^b[1],
p2=a[2]^b[2],
p3=a[3]^b[3],
p4=a[4]^b[4],
p5=a[5]^b[5],
p6=a[6]^b[6],
p7=a[7]^b[7],
g0=a[0]&b[0],
g1=a[1]&b[1],
g2=a[2]&b[2],
g3=a[3]&b[3],
g4=a[4]&b[4],
g5=a[5]&b[5],
g6=a[6]&b[6],
g7=a[7]&b[7];
assign
c1=g0|(p0&c0),
c2=g1|(p1&g0)|(p1&p0&c0),
c3=g2|(p2&g1)|(p2&p1&g0)|(p2&p1&p0&c0),
c4=g3|(p3&g2)|(p3&p2&g1)|(p3&p2&p1&g0)|(p3&p2&p1&p0&c0),
c5=g4|(p4&g3)|(p4&p3&g2)|(p4&p3&p2&g1)|(p4&p3&p2&p1&g0)|(p4&p3&p2&p1&p0&c0),
c6=g5|(p5&g4)|(p5&p4&g3)|(p5&p4&p3&g2)|(p5&p4&p3&p2&g1)|(p5&p4&p3&p2&p1&g0)|(p5&p4&p3&p2&p1&p0&c0),
c7=g6|(p6&g5)|(p6&p5&g4)|(p6&p5&p4&g3)|(p6&p5&p4&p3&g2)|(p6&p5&p4&p3&p2&g1)|(p6&p5&p4&p3&p2&p1&g0)|(p6&p5&p4&p3&p2&p1&p0&c0),
c8=g7|(p7&g6)|(p7&p6&g5)|(p7&p6&p5&g4)|(p7&p6&p5&p4&g3)|(p7&p6&p5&p4&p3&g2)|(p7&p6&p5&p4&p3&p2&g1)|(p7&p6&p5&p4&p3&p2&p1&g0)|(p7&p6&p5&p4&p3&p2&p1&p0&c0);
assign
sum[0]=p0^c0,
sum[1]=p1^c1,
sum[2]=p2^c2,
sum[3]=p3^c3,
sum[4]=p4^c4,
sum[5]=p5^c5,
sum[6]=p6^c6,
sum[7]=p7^c7,
c_8=c8;
endmodule