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alu.v
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alu.v
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`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company:
// Engineer:
//
// Create Date: 20:27:17 05/15/2019
// Design Name:
// Module Name: alu
// Project Name:
// Target Devices:
// Tool versions:
// Description:
//
// Dependencies:
//
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
//
//////////////////////////////////////////////////////////////////////////////////
module alu(alua,alub,ealuc,ealu,z
);
input [31:0] alua,alub;
input [2:0] ealuc;
output [31:0] ealu;
output z;
assign ealu = (ealuc == 3'b000) ? alua + alub :
(ealuc == 3'b001) ? alua & alub :
(ealuc == 3'b010) ? alua | alub :
(ealuc == 3'b011) ? alua ^ alub :
(ealuc == 3'b100) ? alub >> alua :
(ealuc == 3'b101) ? alub << alua :
(ealuc == 3'b110) ? alua - alub :
32'hxxxxxxxx;
assign z = ~|ealu;
endmodule