<machine name="c1581" sourcefile="devices/bus/cbmiec/c1581.cpp" isdevice="yes" runnable="no" isbios="no" ismechanical="no">
  <description>Commodore 1581 3.5" Disk Drive</description>
  <biosset name="beta" description="Beta" default="no" />
  <biosset name="r1" description="Revision 1" default="yes" />
  <biosset name="r2" description="Revision 2" default="no" />
  <biosset name="jiffydos" description="JiffyDOS v6.01" default="no" />
  <rom name="beta.u2" bios="beta" size="32768" crc="ecc223cd" sha1="a331d0d46ead1f0275b4ca594f87c6694d9d9594" region="u1" offset="0" status="good" optional="no" />
  <rom name="318045-01.u2" bios="r1" size="32768" crc="113af078" sha1="3fc088349ab83e8f5948b7670c866a3c954e6164" region="u1" offset="0" status="good" optional="no" />
  <rom name="318045-02.u2" bios="r2" size="32768" crc="a9011b84" sha1="01228eae6f066bd9b7b2b6a7fa3f667e41dad393" region="u1" offset="0" status="good" optional="no" />
  <rom name="jiffydos 1581.u2" bios="jiffydos" size="32768" crc="98873d0f" sha1="65bbf2be7bcd5bdcbff609d6c66471ffb9d04bfe" region="u1" offset="0" status="good" optional="no" />
  <device_ref tag=":_tmp:u1" name="m6502" />
  <device_ref tag=":_tmp:u5" name="mos8520" />
  <device_ref tag=":_tmp:u4" name="wd1772" />
  <device_ref tag=":_tmp:u4:0" name="floppy_connector" />
  <chip type="cpu" tag=":u1" name="MOS Technology 6502" clock="2000000" />
  <chip type="cpu" tag=":u5" name="MOS 8520 CIA" clock="2000000" />
  <dipswitch name="Device Address" tag=":ADDRESS" mask="3">
    <dipvalue name="8" value="0" default="yes" />
    <dipvalue name="9" value="1" default="no" />
    <dipvalue name="10" value="2" default="no" />
    <dipvalue name="11" value="3" default="no" />
  </dipswitch>
</machine>