3 == Ports ===========================================================
9 == Constants ========================================================
16 == TeX ==============================================================
17 == Fleeterpreter ====================================================
18 public void service() {
20 if (in.dataReadyForShip() && op.dataReadyForShip()) {
21 int data = in.removeDataForShip();
22 int opcode = in.removeDataForShip();
24 case 0: out.addDataFromShip(-1 * data); // NEG
26 case 1: out.addDataFromShip(data+1); // INC
28 case 2: out.addDataFromShip(data-1); // DEC
30 case 3: out.addDataFromShip(Math.abs(data)); // ABS
32 default: out.addDataFromShip(0);
39 == FleetSim ==============================================================
40 == FPGA ==============================================================
46 out_r_, out_a, out_d_);
49 `input(a_r, a_a, a_a_, [(`DATAWIDTH-1):0], a_d)
50 `input(op_r, op_a, op_a_, [(`DATAWIDTH-1):0], op_d)
51 `output(out_r, out_r_, out_a, [(`DATAWIDTH-1):0], out_d_)
52 `defreg(out_d_, [(`DATAWIDTH-1):0], out_d)
55 reg [(`DATAWIDTH-1):0] reg_a;
57 reg [(`DATAWIDTH-1):0] reg_op;
59 always @(posedge clk) begin
61 `onread(a_r, a_a) have_a = 1; reg_a = a_d; end
64 `onread(op_r, op_a) have_op = 1; reg_op = op_d; end
67 if (have_a && have_op) begin
72 3: out_d = (reg_a<0) ? (-reg_a) : reg_a;
75 `onwrite(out_r, out_a)
85 == Contributors =========================================================
86 Adam Megacz <megacz@cs.berkeley.edu>