Subversion Repositories rtf8088

// This source file is free software: you can redistribute it and/or modify 

// it under the terms of the GNU Lesser General Public License as published 

// by the Free Software Foundation, either version 3 of the License, or     

// (at your option) any later version.                                      

//                                                                          

// This source file is distributed in the hope that it will be useful,      

// but WITHOUT ANY WARRANTY; without even the implied warranty of           

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            

// GNU General Public License for more details.                             

//                                                                          

// You should have received a copy of the GNU General Public License        

// along with this program.  If not, see <http://www.gnu.org/licenses/>.    

//

INSB:

`include "check_for_ints.v"

        else if (repdone)

                state <= IFETCH;

        else if (!cyc_o) begin

                cyc_type <= `CT_RDIO;

                cyc_o <= 1'b1;

                stb_o <= 1'b1;

                adr_o <= {`SEG_SHIFT,dx};

        end

        else if (ack_i) begin

                cyc_type <= `CT_PASSIVE;

                cyc_o <= 1'b0;

                stb_o <= 1'b0;

                res[7:0] <= dat_i;

                state <= INSB2;

        end

INSB2:

        if (!cyc_o) begin

                cyc_type <= `CT_WRMEM;

                cyc_o <= 1'b1;

                stb_o <= 1'b1;

                adr_o <= esdi;

                dat_o <= res[7:0];

                we_o <= 1'b1;

        end

        else if (ack_i) begin

                cyc_type <= `CT_PASSIVE;

                cyc_o <= 1'b0;

                stb_o <= 1'b0;

                we_o <= 1'b0;

                if (df)

                        di <= di - 16'd1;

                else

                        di <= di + 16'd1;

                if (repz|repnz) cx <= cx_dec;

                state <= repz|repnz ? INSB : IFETCH;

        end