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

<decode>
dec_ready_modregrm_one && decoder[7:0] == 8'h63
prefix_group_1_lock || ~(protected_mode)
`CMD_ARPL
SET(consume_modregrm_one);
</decode>

<read>
IF(rd_cmd == `CMD_ARPL);
    // dst: rm, src: reg
    IF(rd_modregrm_mod == 2'b11);
        
        SET(rd_src_is_reg);
        SET(rd_dst_is_rm);
            
        SET(rd_req_rm);
        SET(rd_req_eflags);
    
        IF(rd_mutex_busy_modregrm_rm || rd_mutex_busy_modregrm_reg); SET(rd_waiting); ENDIF();
    ENDIF();

    // dst: memory, src: reg
    IF(rd_modregrm_mod != 2'b11);
        
        SET(read_length_word);
    
        SET(rd_dst_is_memory);
        
        SET(rd_req_memory);
    
        IF(rd_mutex_busy_memory || rd_mutex_busy_modregrm_reg); SET(rd_waiting);
        ELSE();
            SET(read_rmw_virtual);

            IF(~(read_for_rd_ready)); SET(rd_waiting); ENDIF();
        ENDIF();
    ENDIF();
ENDIF();
</read>

<execute>
IF(exe_cmd == `CMD_ARPL);
    
    SET(exe_result, { 16'd0, dst[15:2], src[1:0] });
    SET(exe_result_signals, { 4'd0, dst[1:0] < src[1:0] });
ENDIF();
</execute>

<write>
IF(wr_cmd == `CMD_ARPL);
    
    SET(write_length_word);
    SET(wr_regrm_word);
    
    IF(result_signals[0]);
    
        SET(write_rmw_virtual,   wr_dst_is_memory);
        SET(write_regrm,         wr_dst_is_rm);  
        
        IF(wr_dst_is_memory && ~(write_for_wr_ready)); SET(wr_waiting); ENDIF();
        
        SAVE(zflag, `TRUE);
    ELSE();
        SAVE(zflag, `FALSE);
    ENDIF();
ENDIF();
</write>