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<defines>
`define CMD_JCXZ        #AUTOGEN_NEXT_CMD
</defines>

<decode>
dec_ready_one_one && decoder[7:0] == 8'hE3
`CMD_JCXZ
SET(dec_is_8bit);
SET(consume_one_one);
</decode>

<execute_local>
wire exe_jecxz_condition;

assign exe_jecxz_condition = (exe_address_16bit)? ecx[15:0] == 16'd0 : ecx == 32'd0;
</execute_local>

<execute>
IF(exe_cmd == `CMD_JCXZ);
    IF(exe_mutex_current[`MUTEX_ECX_BIT]); SET(exe_waiting);
    ELSE();
        
        IF(exe_jecxz_condition && exe_branch_eip > cs_limit);
            SET(exe_waiting);
            SET(exe_trigger_gp_fault); //exception GP(0)
        ENDIF();
        
        SET(exe_branch,         exe_jecxz_condition);
        SET(exe_result_signals, { 4'd0, exe_jecxz_condition });
    ENDIF();
ENDIF();
</execute>

<write>
IF(wr_cmd == `CMD_JCXZ);
    IF(result_signals[0]);
        // clear pipeline
        SET(wr_req_reset_pr);
        SET(wr_req_reset_dec);
        SET(wr_req_reset_micro);
        SET(wr_req_reset_rd);
        SET(wr_req_reset_exe);
    ENDIF();
ENDIF();
</write>