<?xml version="1.0" ?>
<!DOCTYPE msxconfig SYSTEM 'msxconfig2.dtd'>
<msxconfig>

  <info>
    <manufacturer>Gradiente</manufacturer>
    <code>Expert DD Plus</code>
    <release_year>1989</release_year>
    <description>Same as Gradiente Expert Plus, but also includes 3.5" disk drive.</description>
    <type>MSX</type>
    <region>br</region>
  </info>

  <CassettePort/>

  <devices>

    <T7937 id="T7937">
      <subtype>A</subtype>
    </T7937>

    <PPI id="ppi">
      <sound>
        <volume>16000</volume>
      </sound>
      <io base="0xA8" num="4"/>
      <keyboard_type>br_gradiente_1_1</keyboard_type> <!-- rom-bios keyboard type indicates international but the actual mapping tables are brazilian -->
      <has_keypad>true</has_keypad>
      <key_ghosting_sgc_protected>true</key_ghosting_sgc_protected>
      <code_kana_locks>false</code_kana_locks>
      <graph_locks>false</graph_locks>
    </PPI>

    <VDP id="VDP">
      <version>T7937ANTSC</version>
      <io base="0x98" num="2"/>
    </VDP>

    <PSG id="PSG">
      <sound>
        <volume>21000</volume>
      </sound>
      <io base="0xA0" num="4" type="IO"/>
      <ignorePortDirections>true</ignorePortDirections> <!-- not sure, but guess based on use of Engine IC -->
    </PSG>

    <PrinterPort id="Printer Port">
      <io base="0x90" num="2"/>
    </PrinterPort>

    <primary slot="0">
      <ROM id="MSX BIOS with BASIC ROM">
        <rom>
          <filename>expert_ddplus_basic-bios1.rom</filename>
          <sha1>d6720845928ee848cfa88a86accb067397685f02</sha1>
        </rom>
        <mem base="0x0000" size="0x8000"/>
      </ROM>
    </primary>

    <primary external="true" slot="1"/>

    <primary external="true" slot="2"/>

    <primary slot="3">

      <secondary slot="0">
        <RAM id="Main RAM">
          <mem base="0x0000" size="0x10000"/>
        </RAM>
      </secondary>

      <secondary slot="1"/>

      <secondary slot="2"/>

      <secondary slot="3">
        <WD2793 id="Memory Mapped FDC">
          <connectionstyle>National</connectionstyle>
          <drives>1</drives>
          <rom>
            <filename>expert_ddplus_disk.rom</filename>
            <sha1>f1525de4e0b60a6687156c2a96f8a8b2044b6c56</sha1>
          </rom>
          <mem base="0x4000" size="0x8000"/>
        </WD2793>
      </secondary>

    </primary>

  </devices>

</msxconfig>
