{ "_notes": [ "Compiled by Tom Collins, based on Williams System 6 map.", "Alien Poker (Williams, 1980)", "https://www.ipdb.org/machine.cgi?id=48", "Game/player state information from Ideal Joker's 7eleven project." ], "_fileformat": 0.8, "_metadata": { "version": 3, "copyright": "Copyright (C) 2025 by Tom Collins ", "license": "GNU Lesser General Public License v3.0", "platform": "williams-system6-6K", "roms": [ "alpok_f6", "alpok_f6ff", "alpok_l2", "alpok_l2ff", "alpok_l6", "alpok_l6ff" ] }, "game_state": { "credits": { "label": "Credits", "start": "0x0152", "length": 2, "encoding": "bcd" }, "status": { "label": "Game Status", "start": "0x78", "encoding": "bits", "values": [ "game over", "tilt", "EB pending", "EB earned", "ball time >1min", "?", "?", "playfield qualified" ] }, "tilted": { "label": "Tilted", "start": "0x78", "mask": "0x02", "encoding": "bool" }, "game_over": { "label": "Game Over", "start": "0x78", "mask": "0x01", "encoding": "bool" }, "scores": [ { "label": "Player 1", "start": "0x00", "length": 3, "encoding": "bcd", "scale": 10 }, { "label": "Player 2", "start": "0x04", "length": 3, "encoding": "bcd", "scale": 10 }, { "label": "Player 3", "start": "0x08", "length": 3, "encoding": "bcd", "scale": 10 }, { "label": "Player 4", "start": "0x0C", "length": 3, "encoding": "bcd", "scale": 10 } ], "current_player": { "label": "Player", "start": "0x55", "encoding": "int", "offset": 1 }, "player_count": { "label": "Player Count", "start": "0x56", "encoding": "int", "offset": 1 }, "current_ball": { "label": "Ball", "start": "0x03", "encoding": "bcd" }, "ball_count": { "label": "Ball Count", "start": "0x01A3", "length": 2, "encoding": "bcd" }, "extra_balls": { "label": "Extra Balls", "start": "0x5B", "encoding": "int" }, "max_credits": { "label": "Maximum Credits", "start": "0x018B", "length": 2, "encoding": "bcd" }, "free_play": { "_notes": "Free Play enabled when Max Credits == 0", "label": "Free Play", "start": "0x018B", "length": 2, "encoding": "bool", "invert": true } }, "player_state": { "_notes": "yet to be decoded", "_offsets": [ 0, 18, 36, 54 ], "raw": { "start": "0x94", "length": 18, "encoding": "raw" } }, "high_scores": [ { "label": "First Place", "short_label": "1st", "score": { "start": "0x0148", "encoding": "bcd", "length": 6, "scale": 10 } } ], "audits": { "Standard Audits": { "01": { "label": "Coins, left chute", "start": "0x0106", "length": 6, "encoding": "bcd" }, "02": { "label": "Coins, center chute", "start": "0x010C", "length": 6, "encoding": "bcd" }, "03": { "label": "Coins, right chute", "start": "0x0112", "length": 6, "encoding": "bcd" }, "04": { "label": "Total Paid Credits", "start": "0x0118", "length": 6, "encoding": "bcd" }, "05": { "label": "Special Credits", "start": "0x011E", "length": 6, "encoding": "bcd" }, "06": { "label": "Replay Score Credits", "start": "0x0124", "length": 6, "encoding": "bcd" }, "07": { "label": "Match Credits", "start": "0x012A", "length": 6, "encoding": "bcd" }, "08": { "label": "Total Credits", "start": "0x0130", "length": 6, "encoding": "bcd" }, "09": { "label": "Total Extra Balls", "start": "0x0136", "length": 6, "encoding": "bcd" }, "10": { "label": "Total Ball Time", "start": "0x013C", "length": 6, "encoding": "bcd", "units": "minutes" }, "11": { "label": "Total Balls Played", "start": "0x0142", "length": 6, "encoding": "bcd" }, "12": { "label": "Current HSTD", "start": "0x0148", "encoding": "bcd", "length": 6, "scale": 10 }, "99": { "label": "Check Byte", "start": "0x017F", "length": 2, "encoding": "int", "special_values": { "90": "valid" } } } }, "adjustments": { "Standard Adjustments": { "13": { "label": "Backup HSTD", "start": "0x0181", "length": 2, "encoding": "bcd", "scale": 100000 }, "14": { "label": "Replay 1 Score", "start": "0x0183", "length": 2, "encoding": "bcd", "scale": 100000 }, "15": { "label": "Replay 2 Score", "start": "0x0185", "length": 2, "encoding": "bcd", "scale": 100000 }, "16": { "label": "Replay 3 Score", "start": "0x0187", "length": 2, "encoding": "bcd", "scale": 100000 }, "17": { "label": "Replay 4 Score", "start": "0x0189", "length": 2, "encoding": "bcd", "scale": 100000 }, "18": { "label": "Maximum Credits", "start": "0x018B", "length": 2, "encoding": "bcd", "special_values": { "0": "Free Play" } }, "19": { "label": "Pricing Control", "start": "0x018D", "length": 2, "encoding": "bcd", "min": 0, "max": 7, "special_values": { "0": "Manual", "1": "1/$0.25, 3/$0.50", "2": "1/$0.25", "3": "1/1DM, 3/2DM, 14/5DM", "4": "1/1F, 6/5F", "5": "1/1F, 7/5F", "6": "1/25 Cent, 4/Guilder", "7": "1/50Y, 2/100Y" } }, "20": { "label": "Left Coin Slot Multiplier", "start": "0x018F", "length": 2, "encoding": "bcd" }, "21": { "label": "Center Coin Slot Multiplier", "start": "0x0191", "length": 2, "encoding": "bcd" }, "22": { "label": "Right Coin Slot Multiplier", "start": "0x0193", "length": 2, "encoding": "bcd" }, "23": { "label": "Coin Units Required for Credit", "start": "0x0195", "length": 2, "encoding": "bcd" }, "24": { "label": "Coin Units Bonus Point", "start": "0x0197", "length": 2, "encoding": "bcd" }, "25": { "label": "HSTD Credits", "start": "0x0199", "length": 2, "encoding": "bcd" }, "26A": { "label": "Extra Balls", "start": "0x019B", "length": 1, "encoding": "enum", "values": [ "1 EB/Ball", "Multiple EBs/Ball" ] }, "26B": { "label": "Match", "start": "0x019C", "length": 1, "encoding": "enum", "values": [ "On", "Off" ] }, "27": { "label": "Special Awards", "start": "0x019D", "length": 2, "encoding": "enum", "values": [ "Credit", "Extra/Bonus Ball", "Points" ] }, "28": { "label": "Replay Award", "start": "0x019F", "length": 2, "encoding": "enum", "values": [ "Credit", "Extra/Bonus Ball" ] }, "29": { "label": "Tilt Warnings", "start": "0x01A1", "length": 2, "encoding": "bcd", "min": 1, "max": 9 }, "30": { "label": "Number of Balls", "start": "0x01A3", "length": 2, "encoding": "bcd" } }, "Game Adjustments": { "31A": { "label": "POKER lamp memory", "start": "0x01A5", "length": 1, "encoding": "enum", "values": [ "no memory", "lamps on memory" ] }, "31B": { "label": "POKER 'P' lamp", "start": "0x01A6", "length": 1, "encoding": "enum", "values": [ "not lit initially", "lit initially" ] }, "32": { "label": "Extra Ball Control", "start": "0x01A7", "length": 2, "encoding": "enum", "values": [ "lites with 'K' lamp", "no extra ball" ] }, "33A": { "label": "Background Sound", "start": "0x01A9", "length": 1, "encoding": "enum", "values": [ "on", "off" ] }, "33B": { "label": "Ace Eject Hole Memory", "start": "0x01AA", "length": 1, "encoding": "enum", "values": [ "no lamp memory", "lamps on memory" ] }, "34": { "label": "Extra Ball Lamp Memory", "start": "0x01AB", "length": 2, "encoding": "enum", "values": [ "lamp on memory", "no lamp memory" ] }, "35A": { "label": "Attract Mode Sounds", "start": "0x01AD", "length": 1, "encoding": "enum", "values": [ "on", "off" ] }, "35B": { "label": "Royal Flush Value Memory", "start": "0x01AE", "length": 1, "encoding": "enum", "values": [ "lamps on memory", "lamps reset to 100K" ] } } } }