<?xml version="1.0" ?>

<!DOCTYPE msxconfig SYSTEM 'msxconfig2.dtd'>

<msxconfig>

  <info>

    <manufacturer>Gradiente</manufacturer>

    <code>Expert Plus</code>

    <release_year>1989</release_year>

    <description>Third iteration of Gradiente's Expert Brazillian MSX1 machine. </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_plus_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">

        <ROM id="Expert Plus demo ROM">

          <rom>

            <filename>expert_plus_demo.rom</filename>

            <sha1>d4cea8c815f3eeabe0c6a1c845f902ec4318bf6b</sha1>

          </rom>

          <mem base="0x8000" size="0x4000"/>

        </ROM>

      </secondary>

    </primary>

  </devices>

</msxconfig>