Add RTL files

Signed-off-by: Warrick Lo <wlo@warricklo.net>

1 files changed, 12 insertions, 0 deletions

diff --git a/rtl/shifter.sv b/rtl/shifter.sv
new file mode 100644
index 0000000..66e5c74
--- /dev/null
+++ b/rtl/shifter.sv
@@ -0,0 +1,12 @@
+module shifter(in, shift, sout);
+	input [1:0] shift;
+	input [15:0] in;
+	output reg [15:0] sout;
+
+	always_comb case (shift)
+		2'b00: sout = in;
+		2'b01: sout = {in[14:0], 1'b0};
+		2'b10: sout = {1'b0, in[15:1]};
+		2'b11: sout = {in[15], in[15:1]};
+	endcase
+endmodule: shifter