{
  "machine": {
    "name": "ribbit",
    "sourcefile": "sega/segac2.cpp",
    "isbios": "no",
    "isdevice": "no",
    "ismechanical": "no",
    "runnable": "yes",
    "description": "Ribbit!",
    "year": "1991",
    "manufacturer": "Sega",
    "rom": [
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        "name": "epr-13833.ic32",
        "size": "262144",
        "crc": "5347f8ce",
        "sha1": "b95b99536157edfbf0d74a42f64235f47dca7ee1",
        "region": "maincpu",
        "offset": "0",
        "status": "good",
        "optional": "no"
      },
      {
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        "size": "262144",
        "crc": "889c42c2",
        "sha1": "0839a50a68b64a66d995f1bfaff42fcb60bb4d45",
        "region": "maincpu",
        "offset": "1",
        "status": "good",
        "optional": "no"
      },
      {
        "name": "epr-13838.ic34",
        "size": "524288",
        "crc": "a5d62ac3",
        "sha1": "8d83a7bc4017e125ef4231278f766b2368d5fc1f",
        "region": "maincpu",
        "offset": "100000",
        "status": "good",
        "optional": "no"
      },
      {
        "name": "epr-13837.ic33",
        "size": "524288",
        "crc": "434de159",
        "sha1": "cf2973131cabf2bc0ebb2bfe9f804ad3d7d0a733",
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        "offset": "100001",
        "status": "good",
        "optional": "no"
      },
      {
        "name": "epr-13834.ic4",
        "size": "131072",
        "crc": "ab0c1833",
        "sha1": "f864e12ecf6c0524da20fc66747a4fa4280e67e9",
        "region": "upd",
        "offset": "0",
        "status": "good",
        "optional": "no"
      }
    ],
    "device_ref": [
      {
        "tag": ":maincpu",
        "name": "m68000"
      },
      {
        "tag": ":nvram",
        "name": "nvram"
      },
      {
        "tag": ":io",
        "name": "315_5296"
      },
      {
        "tag": ":gen_vdp",
        "name": "sega315_5313"
      },
      {
        "tag": ":gen_vdp:palette_lut",
        "name": "palette"
      },
      {
        "tag": ":gen_vdp:snsnd",
        "name": "segapsg"
      },
      {
        "tag": ":gen_vdp:gfx_palette",
        "name": "palette"
      },
      {
        "tag": ":gen_vdp:gfx_palette_shadow",
        "name": "palette"
      },
      {
        "tag": ":gen_vdp:gfx_palette_hilight",
        "name": "palette"
      },
      {
        "tag": ":scantimer",
        "name": "timer"
      },
      {
        "tag": ":screen",
        "name": "screen"
      },
      {
        "tag": ":palette",
        "name": "palette"
      },
      {
        "tag": ":mono",
        "name": "speaker"
      },
      {
        "tag": ":ymsnd",
        "name": "ym3438"
      },
      {
        "tag": ":upd",
        "name": "upd7759"
      }
    ],
    "chip": [
      {
        "type": "cpu",
        "tag": "maincpu",
        "name": "Motorola MC68000",
        "clock": "8948862"
      },
      {
        "type": "audio",
        "tag": "gen_vdp",
        "name": "Sega 315-5313 Megadrive VDP",
        "clock": "53693175"
      },
      {
        "type": "audio",
        "tag": "gen_vdp:snsnd",
        "name": "Sega VDP PSG",
        "clock": "3579545"
      },
      {
        "type": "audio",
        "tag": "mono",
        "name": "Speaker"
      },
      {
        "type": "audio",
        "tag": "ymsnd",
        "name": "YM3438 OPN2C",
        "clock": "7670453"
      },
      {
        "type": "audio",
        "tag": "upd",
        "name": "NEC uPD7759",
        "clock": "640000"
      }
    ],
    "display": {
      "tag": "screen",
      "type": "raster",
      "rotate": "0",
      "width": "256",
      "height": "224",
      "refresh": "59.922743",
      "pixclock": "8038276",
      "htotal": "512",
      "hbend": "0",
      "hbstart": "256",
      "vtotal": "262",
      "vbend": "0",
      "vbstart": "224",
      "flipx": "no"
    },
    "sound": {
      "channels": "1"
    },
    "input": {
      "players": "2",
      "coins": "2",
      "service": "yes",
      "tilt": "no",
      "control": [
        {
          "type": "joy",
          "player": "1",
          "ways": "8",
          "reverse": "no"
        },
        {
          "type": "joy",
          "player": "2",
          "ways": "8",
          "reverse": "no"
        }
      ]
    },
    "dipswitch": [
      {
        "name": "Coin A",
        "tag": "COINAGE",
        "mask": "15",
        "diplocation": [
          {
            "name": "SW1",
            "number": "1",
            "inverted": "no"
          },
          {
            "name": "SW1",
            "number": "2",
            "inverted": "no"
          },
          {
            "name": "SW1",
            "number": "3",
            "inverted": "no"
          },
          {
            "name": "SW1",
            "number": "4",
            "inverted": "no"
          }
        ],
        "dipvalue": [
          {
            "name": "4 Coins/1 Credit",
            "value": "7",
            "default": "no"
          },
          {
            "name": "3 Coins/1 Credit",
            "value": "8",
            "default": "no"
          },
          {
            "name": "2 Coins/1 Credit",
            "value": "9",
            "default": "no"
          },
          {
            "name": "2 Coins/1 Credit, 5/3, 6/4",
            "value": "5",
            "default": "no"
          },
          {
            "name": "2 Coins/1 Credit, 4/3",
            "value": "4",
            "default": "no"
          },
          {
            "name": "1 Coin/1 Credit",
            "value": "15",
            "default": "yes"
          },
          {
            "name": "1 Coin/1 Credit, 5/6",
            "value": "3",
            "default": "no"
          },
          {
            "name": "1 Coin/1 Credit, 4/5",
            "value": "2",
            "default": "no"
          },
          {
            "name": "1 Coin/1 Credit, 2/3",
            "value": "1",
            "default": "no"
          },
          {
            "name": "2 Coins/3 Credits",
            "value": "6",
            "default": "no"
          },
          {
            "name": "1 Coin/2 Credits",
            "value": "14",
            "default": "no"
          },
          {
            "name": "1 Coin/3 Credits",
            "value": "13",
            "default": "no"
          },
          {
            "name": "1 Coin/4 Credits",
            "value": "12",
            "default": "no"
          },
          {
            "name": "1 Coin/5 Credits",
            "value": "11",
            "default": "no"
          },
          {
            "name": "1 Coin/6 Credits",
            "value": "10",
            "default": "no"
          },
          {
            "name": "Free Play (if Coin B too) or 1/1",
            "value": "0",
            "default": "no"
          }
        ]
      },
      {
        "name": "Coin B",
        "tag": "COINAGE",
        "mask": "240",
        "diplocation": [
          {
            "name": "SW1",
            "number": "5",
            "inverted": "no"
          },
          {
            "name": "SW1",
            "number": "6",
            "inverted": "no"
          },
          {
            "name": "SW1",
            "number": "7",
            "inverted": "no"
          },
          {
            "name": "SW1",
            "number": "8",
            "inverted": "no"
          }
        ],
        "dipvalue": [
          {
            "name": "4 Coins/1 Credit",
            "value": "112",
            "default": "no"
          },
          {
            "name": "3 Coins/1 Credit",
            "value": "128",
            "default": "no"
          },
          {
            "name": "2 Coins/1 Credit",
            "value": "144",
            "default": "no"
          },
          {
            "name": "2 Coins/1 Credit, 5/3, 6/4",
            "value": "80",
            "default": "no"
          },
          {
            "name": "2 Coins/1 Credit, 4/3",
            "value": "64",
            "default": "no"
          },
          {
            "name": "1 Coin/1 Credit",
            "value": "240",
            "default": "yes"
          },
          {
            "name": "1 Coin/1 Credit, 5/6",
            "value": "48",
            "default": "no"
          },
          {
            "name": "1 Coin/1 Credit, 4/5",
            "value": "32",
            "default": "no"
          },
          {
            "name": "1 Coin/1 Credit, 2/3",
            "value": "16",
            "default": "no"
          },
          {
            "name": "2 Coins/3 Credits",
            "value": "96",
            "default": "no"
          },
          {
            "name": "1 Coin/2 Credits",
            "value": "224",
            "default": "no"
          },
          {
            "name": "1 Coin/3 Credits",
            "value": "208",
            "default": "no"
          },
          {
            "name": "1 Coin/4 Credits",
            "value": "192",
            "default": "no"
          },
          {
            "name": "1 Coin/5 Credits",
            "value": "176",
            "default": "no"
          },
          {
            "name": "1 Coin/6 Credits",
            "value": "160",
            "default": "no"
          },
          {
            "name": "Free Play (if Coin A too) or 1/1",
            "value": "0",
            "default": "no"
          }
        ]
      },
      {
        "name": "Credits to Start",
        "tag": "DSW",
        "mask": "1",
        "diplocation": {
          "name": "SW2",
          "number": "1",
          "inverted": "no"
        },
        "dipvalue": [
          {
            "name": "1",
            "value": "1",
            "default": "yes"
          },
          {
            "name": "2",
            "value": "0",
            "default": "no"
          }
        ]
      },
      {
        "name": "Demo Sounds",
        "tag": "DSW",
        "mask": "2",
        "diplocation": {
          "name": "SW2",
          "number": "2",
          "inverted": "no"
        },
        "dipvalue": [
          {
            "name": "Off",
            "value": "2",
            "default": "no"
          },
          {
            "name": "On",
            "value": "0",
            "default": "yes"
          }
        ]
      },
      {
        "name": "Lives",
        "tag": "DSW",
        "mask": "12",
        "diplocation": [
          {
            "name": "SW2",
            "number": "3",
            "inverted": "no"
          },
          {
            "name": "SW2",
            "number": "4",
            "inverted": "no"
          }
        ],
        "dipvalue": [
          {
            "name": "1",
            "value": "8",
            "default": "no"
          },
          {
            "name": "2",
            "value": "12",
            "default": "no"
          },
          {
            "name": "3",
            "value": "4",
            "default": "yes"
          },
          {
            "name": "5",
            "value": "0",
            "default": "no"
          }
        ]
      },
      {
        "name": "Difficulty",
        "tag": "DSW",
        "mask": "48",
        "diplocation": [
          {
            "name": "SW2",
            "number": "5",
            "inverted": "no"
          },
          {
            "name": "SW2",
            "number": "6",
            "inverted": "no"
          }
        ],
        "dipvalue": [
          {
            "name": "Easy",
            "value": "32",
            "default": "no"
          },
          {
            "name": "Normal",
            "value": "48",
            "default": "yes"
          },
          {
            "name": "Hard",
            "value": "16",
            "default": "no"
          },
          {
            "name": "Hardest",
            "value": "0",
            "default": "no"
          }
        ]
      },
      {
        "name": "Unused",
        "tag": "DSW",
        "mask": "64",
        "diplocation": {
          "name": "SW2",
          "number": "7",
          "inverted": "no"
        },
        "dipvalue": [
          {
            "name": "Off",
            "value": "64",
            "default": "yes"
          },
          {
            "name": "On",
            "value": "0",
            "default": "no"
          }
        ]
      },
      {
        "name": "Unused",
        "tag": "DSW",
        "mask": "128",
        "diplocation": {
          "name": "SW2",
          "number": "8",
          "inverted": "no"
        },
        "dipvalue": [
          {
            "name": "Off",
            "value": "128",
            "default": "yes"
          },
          {
            "name": "On",
            "value": "0",
            "default": "no"
          }
        ]
      }
    ],
    "port": [
      {
        "tag": ":COINAGE"
      },
      {
        "tag": ":DSW"
      },
      {
        "tag": ":P1"
      },
      {
        "tag": ":P2"
      },
      {
        "tag": ":SERVICE"
      }
    ],
    "driver": {
      "status": "good",
      "emulation": "good",
      "savestate": "unsupported",
      "requiresartwork": "no",
      "unofficial": "no",
      "nosoundhardware": "no",
      "incomplete": "no"
    }
  }
}