combinational for-loop：vector reversal 2

Given a 100-bit input vector [99:0], reverse its bit ordering.

Vector100r - HDLBits (01xz.net)

module top_module( 
    input [99:0] in,
    output [99:0] out
);
// for语句会占用大量资源，因此采用generate for语句
    genvar i;
    generate    
        for(i=0;i<100;i=i+1)begin:reverse_bit  
            assign out[99-i] = in[i];
        end
    endgenerate

endmodule

 当然，要是用for写，也不是不行，这两种写法的差别我还要看一下……

module top_module( 
    input [99:0] in,
    output [99:0] out
);
    integer i;
	always@* begin
        for(i=0;i<100;i++) begin
            out[i]=in[99-i];
    end
    end
endmodule