rtl/fpu/float/fp_mac.sv


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import fp_wire::*;

module fp_mac (
    input reset,
    input clock,
    input fp_mac_in_type fp_mac_i,
    output fp_mac_out_type fp_mac_o
);

  logic [109:0] add;
  logic [111:0] mul;
  logic [109:0] mac;
  logic [109:0] res;

  assign add = {fp_mac_i.a, 54'h0};
  assign mul = $signed(fp_mac_i.b) * $signed(fp_mac_i.c);
  assign mac = (fp_mac_i.op == 0) ? mul[109:0] : -mul[109:0];
  assign res = add + mac;
  assign fp_mac_o.d = res;

endmodule