Subversion Repositories quark

////////////////////////////////////////////////
// @file  ALU.v
// @brief ALU design for Quantum processor
// @date  9/6/2014
////////////////////////////////////////////////
 
`include "Alu.vh"
 
module ModAlu (
  input             Clock,
  input             Reset,
  input      [0:7]  AluInstruction,
  input      [0:7]  AluInput1,
  input      [0:7]  AluInput2,
  output reg [0:15] AluResult
  );
 
  always@(posedge Clock, negedge Reset) begin
    if (Reset == 1'b0) begin
      AluResult <= 16'h00;
    end else begin
      case (AluInstruction)
        `Idle: begin
          AluResult <= AluResult;
        end
        `And: begin
          AluResult <= AluInput2 & AluInput1;
        end
        `Or: begin
          AluResult <= AluInput2 | AluInput1;
        end
        `XNOr: begin
          AluResult <= AluInput2 ^~ AluInput1;
        end
        `XOr: begin
          AluResult <= AluInput2 ^ AluInput1;
        end
        `Not: begin
          AluResult <= {AluInput2, AluInput1};
        end
        `Add: begin
          AluResult <= AluInput2 + AluInput1;
        end
        `Sub: begin
          AluResult <= AluInput2 - AluInput1;
        end
        default: begin
          AluResult <= AluResult;
        end  
      endcase
    end
  end
endmodule
 
////////////////////////////////////////////////
// EOF
////////////////////////////////////////////////