Verilog shift 163 email
A Verilog question!
To shift a 16-bit value in Verilog, you can use the <<
(left shift) or >>
(right shift) operators.
Here's an example:
module shift_example;
reg [15:0] data; // 16-bit data
reg [15:0] shifted_data;
initial begin
data = 16'h0001; // initial value
shifted_data = data << 2; // shift left by 2 bits
$display("Shifted data: %h", shifted_data);
end
endmodule
In this example, the data
register is initialized to 0x0001
(1). The shifted_data
register is then assigned the result of shifting data
left by 2 bits using the <<
operator. The resulting value is 0x0040
(16).
If you want to shift right instead, you can use the >>
operator:
module shift_example;
reg [15:0] data; // 16-bit data
reg [15:0] shifted_data;
initial begin
data = 16'h0001; // initial value
shifted_data = data >> 2; // shift right by 2 bits
$display("Shifted data: %h", shifted_data);
end
endmodule
In this case, the resulting value would be 0x0000
(0).
Note that when shifting right, the most significant bits (MSBs) are filled with zeros by default. If you want to fill with ones instead, you can use the >>>
operator (logical right shift).