{
  "_notes": [
    "Compiled by Francis De Brabandere.",
    "Embryon (Bally 1981) -- Free Play version of ROMs",
    "https://www.ipdb.org/machine.cgi?id=783",
    "https://opdb.org/machines/1695",
    "Bally MPU AS-2518-35 (U6: 720-52_6.732)",
    "6-digit score display (with a ROM used with 7-digit games)",
    "By default the credits are not shown, set dip switch 27 to show them."
  ],
  "_fileformat": 0.8,
  "_metadata": {
    "version": 2,
    "copyright": [
      "Copyright (C) 2024 by Francis De Brabandere <francisdb@gmail.com>",
      "Copyright (C) 2025 by Tom Collins <tom@scorbit.io>"
    ],
    "license": "GNU Lesser General Public License v3.0",
    "platform": "bally-35-8K",
    "roms": [
      "embryona"
    ]
  },
  "game_state": {
    "_notes": [
      "score @ 0x21E, 0x225, 0x22C, 0x233 are display memory, and active in game",
      "during attract, last game scores at 0x248, 0x24F, 0x256, 0x25D"
    ],
    "credits": {
      "label": "Credits",
      "start": "0x02AD",
      "length": 2,
      "encoding": "bcd"
    },
    "scores": [
      {
        "label": "Player 1",
        "start": "0x021E",
        "encoding": "bcd",
        "length": 6
      },
      {
        "label": "Player 2",
        "start": "0x0225",
        "encoding": "bcd",
        "length": 6
      },
      {
        "label": "Player 3",
        "start": "0x022C",
        "encoding": "bcd",
        "length": 6
      },
      {
        "label": "Player 4",
        "start": "0x0233",
        "encoding": "bcd",
        "length": 6
      }
    ],
    "final_scores": [
      {
        "label": "Final Score P1",
        "start": "0x0248",
        "encoding": "bcd",
        "length": 6
      },
      {
        "label": "Final Score P2",
        "start": "0x024F",
        "encoding": "bcd",
        "length": 6
      },
      {
        "label": "Final Score P3",
        "start": "0x0256",
        "encoding": "bcd",
        "length": 6
      },
      {
        "label": "Final Score P4",
        "start": "0x025D",
        "encoding": "bcd",
        "length": 6
      }
    ],
    "current_ball": {
      "label": "Current Ball",
      "start": "0x0B",
      "encoding": "bcd"
    },
    "player_count": {
      "label": "Players",
      "start": "0x0C",
      "encoding": "bcd"
    },
    "current_player": {
      "label": "Current Player",
      "start": "0x0D",
      "encoding": "bcd"
    },
    "ball_count": {
      "label": "Ball Count",
      "encoding": "dipsw",
      "offsets": [
        32,
        31
      ],
      "values": [
        3,
        5,
        4,
        2
      ]
    },
    "max_credits": {
      "label": "Max Credits",
      "encoding": "dipsw",
      "offsets": [
        26,
        25
      ],
      "values": [
        10,
        15,
        25,
        40
      ]
    },
    "free_play": {
      "label": "Free Play",
      "encoding": "dipsw",
      "offsets": [
        26,
        25
      ],
      "values": [
        false,
        false,
        false,
        true
      ]
    },
    "game_over": {
      "_notes": "reading 'game over' lamp",
      "label": "Game Over",
      "start": "0x20C",
      "encoding": "bool",
      "mask": "0x4",
      "invert": true
    },
    "tilted": {
      "_notes": "reading 'tilt' lamp",
      "label": "Tilted",
      "start": "0x20C",
      "encoding": "bool",
      "mask": "0x8",
      "invert": true
    }
  },
  "high_scores": [
    {
      "label": "High Score",
      "_notes": "Shown as adjustment 04.",
      "short_label": "HS",
      "score": {
        "start": "0x02A6",
        "encoding": "bcd",
        "length": 6
      }
    }
  ],
  "audits": {
    "Bookkeeping functions": {
      "05": {
        "label": "Current Credits",
        "start": "0x02AD",
        "length": 6,
        "encoding": "bcd",
        "min": 0,
        "max": 40
      },
      "06": {
        "label": "Total Plays (Paid and Free Games)",
        "start": "0x02B4",
        "length": 6,
        "encoding": "bcd",
        "min": 0,
        "max": 99999
      },
      "07": {
        "label": "Total Replays (Free Games)",
        "start": "0x02BB",
        "length": 6,
        "encoding": "bcd",
        "min": 0,
        "max": 99999
      },
      "08": {
        "label": "Game Percentage",
        "start": "0x02C2",
        "length": 6,
        "encoding": "bcd",
        "min": 0,
        "max": 99999
      },
      "09": {
        "label": "HSTD Achieved",
        "start": "0x02C9",
        "length": 6,
        "encoding": "bcd",
        "min": 0,
        "max": 99999
      },
      "10": {
        "label": "Coin Chute #1",
        "start": "0x02D0",
        "length": 6,
        "encoding": "bcd",
        "min": 0,
        "max": 99999
      },
      "11": {
        "label": "Coin Chute #2",
        "start": "0x02D7",
        "length": 6,
        "encoding": "bcd",
        "min": 0,
        "max": 99999
      },
      "12": {
        "label": "Coin Chute #3",
        "start": "0x02DE",
        "length": 6,
        "encoding": "bcd",
        "min": 0,
        "max": 99999
      },
      "13": {
        "label": "Specials Awarded",
        "start": "0x02E5",
        "length": 6,
        "encoding": "bcd",
        "min": 0,
        "max": 99999
      },
      "14": {
        "label": "Minutes of Game Play",
        "start": "0x02EC",
        "length": 6,
        "encoding": "bcd",
        "min": 0,
        "max": 99999
      },
      "15": {
        "label": "Service Credits",
        "start": "0x02F3",
        "length": 6,
        "encoding": "bcd",
        "min": 0,
        "max": 99999
      }
    }
  },
  "adjustments": {
    "Adjustments": {
      "01": {
        "label": "Replay Level 1",
        "start": "0x0291",
        "encoding": "bcd",
        "length": 6,
        "min": 0,
        "max": 990000,
        "default": 0,
        "special_values": {
          "0": "OFF"
        },
        "multiple_of": 10000
      },
      "02": {
        "label": "Replay Level 2",
        "start": "0x0298",
        "encoding": "bcd",
        "length": 6,
        "min": 0,
        "max": 990000,
        "default": 0,
        "special_values": {
          "0": "OFF"
        },
        "multiple_of": 10000
      },
      "03": {
        "label": "Replay Level 3",
        "start": "0x029F",
        "encoding": "bcd",
        "length": 6,
        "min": 0,
        "max": 990000,
        "default": 0,
        "special_values": {
          "0": "OFF"
        },
        "multiple_of": 10000
      },
      "16": {
        "label": "Special/Extra Ball Awards",
        "start": "0x02FA",
        "encoding": "enum",
        "values": [
          "none",
          "Special=50K, Extra Ball=25K",
          "Special & Extra Ball=Extra Ball",
          "Special=Replay, Extra Ball=Extra Ball"
        ]
      },
      "17": {
        "label": "Replay Award",
        "start": "0x02FB",
        "encoding": "enum",
        "values": [
          "none",
          "25K",
          "Extra Ball",
          "Replay"
        ]
      },
      "18": {
        "label": "Sound Option",
        "start": "0x02FC",
        "encoding": "enum",
        "values": [
          "chimes without feature background",
          "chimes with background",
          "scoring with noise effect without background",
          "scoring with noise effect and background"
        ]
      },
      "19": {
        "label": "HSTD Award",
        "start": "0x02FD",
        "encoding": "bcd",
        "min": 0,
        "max": 3,
        "suffix": " credits"
      }
    }
  }
}