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`define CMD_SCAS        #AUTOGEN_NEXT_CMD

`define CMDEX_SCAS_STEP_0       4'd0

dec_ready_one && { decoder[7:1], 1'b0 } == 8'hAE

`CMD_SCAS

SET(dec_cmdex, `CMDEX_SCAS_STEP_0);

IF(decoder[0] == 1'b0); SET(dec_is_8bit); ENDIF();

SET(consume_one);

IF(dec_prefix_group_1_rep != 2'd0); SET(dec_is_complex); ENDIF();

//complex instruction only if: dec_prefix_group_1 != 2'd0

LOOP(`CMDEX_SCAS_STEP_0);

IF(rd_cmd == `CMD_SCAS);

    SET(address_edi);

    //waiting for edi in 'address_waiting'

    IF(rd_mutex_busy_memory || (rd_mutex_busy_ecx && rd_prefix_group_1_rep != 2'd0)); SET(rd_waiting); //waiting for ecx for rd_string_ignore

    ELSE();

        IF(~(rd_string_ignore));

            SET(rd_dst_is_eax);

            SET(rd_src_is_memory);

            SET(read_virtual);

            IF(~(read_for_rd_ready)); SET(rd_waiting);

            ELSE();

                SET(rd_req_edi);

                SET(rd_req_eflags);

                //not needed -- reset after finish //IF(rd_prefix_group_1_rep != 2'd0); SET(rd_req_ecx); ENDIF();

            ENDIF();

        ENDIF();

    ENDIF();

ENDIF();

IF(exe_cmd == `CMD_SCAS);

    SET(exe_result, exe_arith_sub[31:0]);

    SET(exe_arith_index, (`ARITH_VALID | `ARITH_SUB));

ENDIF();

IF(wr_cmd == `CMD_SCAS);

    IF(~(wr_string_ignore));

        SAVE(edi, wr_edi_final);

        IF(wr_prefix_group_1_rep != 2'd0); SAVE(ecx, wr_ecx_final); ENDIF();

        SAVE(zflag, zflag_result);

        SAVE(sflag, sflag_result);

        SAVE(pflag, pflag_result);

        SAVE(aflag, aflag_arith);

        SAVE(cflag, cflag_arith);

        SAVE(oflag, oflag_arith);

    ENDIF();

    IF(wr_string_ignore || wr_string_zf_finish);

        SET(wr_req_reset_micro);

        SET(wr_req_reset_rd);

        SET(wr_req_reset_exe);

    ENDIF();

    IF(~(wr_string_ignore) && ~(wr_string_zf_finish) && wr_prefix_group_1_rep != 2'd0);

        SET(wr_not_finished);

        SET(wr_string_in_progress);

    ENDIF();

ENDIF();