ShiftRows.v

module ShiftRows(
input [127:0] in,
output [127:0] out

);
wire [31:0] word0,word1,word2,word3;
wire [31:0] sword0,sword1,sword2,sword3;
BlockTostate obj(in,word0,word1,word2,word3);
wire [7:0] temp,temp1,temp2;
wire [7:0] temp3,temp4,temp5;
//for the first row 
assign sword0[31:24]=word0[31:24];
assign sword1[31:24]=word1[31:24];
assign sword2[31:24]=word2[31:24];
assign sword3[31:24]=word3[31:24];
//for the second row
assign temp=word0[23:16];
assign sword0[23:16]=word1[23:16];
assign sword1[23:16]=word2[23:16];
assign sword2[23:16]=word3[23:16];
assign sword3[23:16]=temp;
//for the third row
assign temp1=word0[15:8];
assign temp2=word1[15:8];
assign sword0[15:8]=word2[15:8];
assign sword1[15:8]=word3[15:8];
assign sword2[15:8]=temp1;
assign sword3[15:8]=temp2;
//for the forth row 
assign temp3=word0[7:0];
assign temp4=word1[7:0];
assign temp5=word2[7:0];
assign sword0[7:0]=word3[7:0];
assign sword1[7:0]=temp3;
assign sword2[7:0]=temp4;
assign sword3[7:0]=temp5;
assign out ={sword0[31:0],sword1[31:0],sword2[31:0],sword3[31:0]};
endmodule