<?xml version="1.0" ?>

<!DOCTYPE msxconfig SYSTEM 'msxconfig2.dtd'>

<msxconfig>

<!--

  Data provided by Peter Hanraets on machine with serial 120113

  IDENT says: dvik says VDP is V9938/58: YES (!!!!!?????)

              TMS99xx/TMS9xxx/TMS9xxx

              screen 2 mirrored mode: YES

              mode 3 mixed mode: YES

              Z80 scf: 01E529ED01F429FC (dunno)

              z80 cpl: 3AFF12D7 (standard)

              Z80 out (c), 0: 0 (MSX)

              PSG pin 6/7 quirk: C (YES)

              PSGmask; AY8910-like

  Photo on msx.org wiki says:

  VDP: TMS9928ANL

  PPI: NEC D8255AC-5

  CPU: NEC D780

  PSG: GI AY-3-8910A

  Machine has a built-in datarecorder, which is not emulated as such. The

  built-in firmware seems to have commands to control the datarecorder, which

  are also not emulated.

  Thanks to BiFi we know something about how the datarecorder is controlled:

  - control via I/O port 0x94, with the following bit map:

    bit 7 = Fast Forward

    bit 6 = Rewind

    bit 5 = Record

    bit 4 = Stop

    bit 3 = Pause

    bit 2 = Play

    bit 1 = Scan

    bit 0 = Mute

  - Scan is done in combination with Fast Forward, Rewind or Record. It's used

    to scan for the next, previous or blank spot on the cassette respectively.

  - Scan in combination with Play is the _IDTRACE command

  - Scan in combination with Pause is the _STDBY command

  - The scanning stuff is implemented in hardware

  - The commands as mentioned in the Cassette Operation Guide:

    _CFILES:   not sure, probably a scan of the whole tape

    _REC:      only bit 5 and 3 on 1 ("ready to record")

    _PLAY:     only bit 2 on 1

    _REW:      only bit 6 on 1

    _FF:       only bit 7 on 1

    _STOP:     only bit 4 on 1

    _PAUSE:    only bit 3 on 1

    _NSCAN:    only bit 1 and 7 on 1: Next SCAN

    _CSCAN:    only bit 1 and 6 on 1: C(urrent)? SCAN

    _IDTRACE:  only bit 1 and 2 on 1

    _BLSCAN:   only bit 1 and 5 on 1: BLank SCAN

    _STDBY:    only bit 1 and 3 on 1: stand by (?)

    _AUTOMUTE: ??? mutes and unmutes depending on bits read from port 0x94

    _MUTE:     only bit 0 on 1

  The speed-control button/option is also not emulated.

-->

  <info>

    <manufacturer>Hitachi</manufacturer>

    <code>MB-H2</code>

    <release_year>1985</release_year>

    <description>Compact portable 64kB Japanese MSX1 with built in data recorder and speed control (which are both not emulated).</description>

    <type>MSX</type>

    <region>jp</region>

  </info>

  <CassettePort/>

  <devices>

    <PPI id="ppi">

      <sound>

        <volume>16000</volume>

      </sound>

      <io base="0xA8" num="4"/>

      <keyboard_type>jp_ansi</keyboard_type>

      <has_keypad>false</has_keypad>

      <key_ghosting_sgc_protected>true</key_ghosting_sgc_protected>

      <code_kana_locks>true</code_kana_locks>

      <graph_locks>false</graph_locks>

    </PPI>

    <VDP id="VDP">

      <version>TMS9928A</version>

      <saturation>100</saturation> <!-- TMS9x2x and RGB output -->

      <io base="0x98" num="2"/>

    </VDP>

    <PSG id="PSG">

      <type>AY8910</type>

      <sound>

        <volume>21000</volume>

      </sound>

      <io base="0xA0" num="4" type="IO"/>

      <ignorePortDirections>false</ignorePortDirections> <!-- not sure, but guess based on discrete PSG chip -->

    </PSG>

    <PrinterPort id="Printer Port">

      <io base="0x90" num="2"/>

    </PrinterPort>

    <primary slot="0">

      <ROM id="MSX BIOS with BASIC ROM">

        <rom>

          <filename>mb-h2_basic-bios1.rom</filename>

          <sha1>302afb5d8be26c758309ca3df611ae69cced2821</sha1>

        </rom>

        <mem base="0x0000" size="0x8000"/>

      </ROM>

      <ROM id="MB-H2 Firmware">

        <rom>

          <filename>mb-h2_firmware.rom</filename>

          <sha1>e2140fa2e8e59090ecccf55b62323ea9dcc66d0b</sha1>

        </rom>

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

      </ROM>

    </primary>

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

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

    <primary slot="3">

      <RAM id="Main RAM">

        <!-- RAM pattern is like 128x 0x00, 128x 0xFF, etc. -->

        <initialContent encoding="gz-base64">eJxjYBhY8H+AAQAioH+B</initialContent>

        <mem base="0x0000" size="0x10000"/>

      </RAM>

    </primary>

  </devices>

</msxconfig>