module opc_to_alu_op (opc, alu_op);

`include ".\\timing.v"
`include ".\\defs.v"

output  [3:0] alu_op;
reg [3:0] alu_op;
input [5:0] opc;

always@(opc)
case(opc)
    0:  alu_op=0;
    33: alu_op=1;
    34: alu_op=2;
    32: alu_op=3;
    37: alu_op=4;
    16: alu_op=5;
    17: alu_op=6;
    19: alu_op=7;
    18: alu_op=8;
    20: alu_op=9;
    21: alu_op=10;
    22: alu_op=11;
    23: alu_op=12;
    48: alu_op=14;      // Register B an alu_out anlegen (für LOAD and STORE)
    jsr: alu_op=13;
    ret: alu_op=15;
    default: $display("%t %m Non arithmetic command: %b",$time, opc);
    endcase

endmodule