/****************************************************************************** * Dx * register manipulation field A * */ `include "decstates.v" `DEC_DX: begin case (nb_in) 4'hA: begin A[19:0] <= C[19:0]; $display("%5h A=C\tA", inst_start_PC); end 4'hE: begin A[19:0] <= C[19:0]; C[19:0] <= A[19:0]; $display("%5h ACEX\tA", inst_start_PC); end default: begin $display("ERROR : DEC_DX"); decode_error <= 1; end endcase decstate <= `DEC_START; end