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`define CMD_WBINVD      #AUTOGEN_NEXT_CMD

// check CPL

`define CMDEX_WBINVD_STEP_0     4'd0

// do invalidate

`define CMDEX_WBINVD_STEP_1     4'd1

// idle

`define CMDEX_WBINVD_STEP_2     4'd2

dec_ready_2byte_one && decoder[7:0] == 8'h09

`CMD_WBINVD

SET(dec_cmdex, `CMDEX_WBINVD_STEP_0);

SET(consume_one);

SET(dec_is_complex);

`CMDEX_WBINVD_STEP_0

`CMDEX_WBINVD_STEP_1

LOOP(`CMDEX_WBINVD_STEP_2);

IF(exe_cmd == `CMD_WBINVD && exe_cmdex == `CMDEX_WBINVD_STEP_0);

    IF(cpl > 2'd0);

        SET(exe_waiting);

        SET(exe_trigger_gp_fault); //exception GP(0)

    ENDIF();

ENDIF();

reg e_wbinvd_code_done;

reg e_wbinvd_data_done;

always @(posedge clk or negedge rst_n) begin

    if(rst_n == 1'b0)       e_wbinvd_code_done <= `FALSE;

    else if(exe_reset)      e_wbinvd_code_done <= `FALSE;

    else if(exe_ready)      e_wbinvd_code_done <= `FALSE;

    else if(invdcode_done)  e_wbinvd_code_done <= `TRUE;

end

always @(posedge clk or negedge rst_n) begin

    if(rst_n == 1'b0)         e_wbinvd_data_done <= `FALSE;

    else if(exe_reset)        e_wbinvd_data_done <= `FALSE;

    else if(exe_ready)        e_wbinvd_data_done <= `FALSE;

    else if(wbinvddata_done)  e_wbinvd_data_done <= `TRUE;

end

IF(exe_cmd == `CMD_WBINVD && exe_cmdex == `CMDEX_WBINVD_STEP_1);

    SET(invdcode_do,   ~(e_wbinvd_code_done));

    SET(wbinvddata_do, ~(e_wbinvd_data_done));

    IF(~(e_wbinvd_code_done && e_wbinvd_data_done));

        SET(exe_waiting);

    ENDIF();

ENDIF();

IF(wr_cmd == `CMD_WBINVD && wr_cmdex == `CMDEX_WBINVD_STEP_0);

    SET(wr_not_finished);

ENDIF();

IF(wr_cmd == `CMD_WBINVD && wr_cmdex == `CMDEX_WBINVD_STEP_1);

    // reset part of pipeline

    SET(wr_req_reset_micro);

    SET(wr_req_reset_rd);

    SET(wr_req_reset_exe);

ENDIF();