{ "scope": "Partial reverse engineering of Contra III on a modified SA-1 ROM; not a full SFC game decompilation.", "romSha256": "44ebb9a450b5b77341fc9130ab45767a13212c242350aad450a4526f8a8d8017", "coreCommit": "890b5d445538fe790aa3add3d5702c80f551e0ae", "instrumentedCoreSha256": "2a72bdf12a390748801bb9fbf803062bbdc3b7491d0c23246722d7608e12c12c", "validation": { "stairsComparedFrames": 111, "stairsCoordinateMismatches": 0, "landingFrames": [ { "frame": 94, "feet": 144 }, { "frame": 128, "feet": 72 } ], "note": "Coordinates compared by tests/city-logic.test.cjs. Collision/player update only; NPC behavior and sprite hitboxes are not covered by this equality claim." }, "limitations": [ "SA-1 CPU only; main CPU/SPC/DMA execution not traced.", "Actor filter uses X and D; temporary X values are omitted, so this is not a complete instruction stream.", "Natural controller input in these runs; loaded exploration snapshots can contain previously granted protection.", "Tank/fire/Boss implementation is not established merely by locating routines." ], "runs": [ { "name": "trace-stairs-landing", "actor": 254, "frames": 160, "traceRows": 136927, "instructionVariants": 845, "possiblyTruncated": false, "traceSha256": "d8e704a90b0e2fc8bea8f5f92e4e264c4358cb417202341dc5440f924db4a94d", "ramSha256": "d366ae2797d0778a457c2f4b7243f51de1239e0894e7e16f191119b4a8e66924", "sourceStateSha256": "43b78752ac80a9f706b6e870cb22e15f9ffab47666dda7b1d61f24f667e13c86", "inputCsv": "0,48,130\r\n48,100,2\r\n60,61,3\r\n100,160,130\r\n105,106,131", "inputSha256": "16e8d89b9359798ff8363c8a70c372ce42e1d967b07f0ec443f33bd3bde71a68", "transitions": [], "instructions": [ { "pc": "0185D0", "offset": "0085D0", "bytes": "A504", "size": 2, "mnemonic": "LDA", "operand": "$04", "mode": "Dir", "count": 3, "firstFrame": 46, "lastFrame": 128, "sample": { "p": "06", "a": "2002", "x": "0200", "y": "0000", "d": "6000", "db": "05", "actor": 254, "state": 3 } }, { "pc": "0193DB", "offset": "0093DB", "bytes": "18", "size": 1, "mnemonic": "CLC", "operand": "", "mode": "Imp", "count": 59, "firstFrame": 46, "lastFrame": 159, "sample": { "p": "04", "a": "0002", "x": "0200", "y": "0000", "d": "6000", "db": "05", "actor": 254, "state": 3 } }, { "pc": "0193DF", "offset": "0093DF", "bytes": "750E", "size": 2, "mnemonic": "ADC", "operand": "$0E,X", "mode": "DirIdxX", "count": 59, "firstFrame": 46, "lastFrame": 159, "sample": { "p": "06", "a": "0000", "x": "0200", "y": "0000", "d": "6000", "db": "05", "actor": 254, "state": 3 } } ] }, { "name": "trace-wall", "actor": 4, "frames": 240, "traceRows": 94906, "instructionVariants": 330, "possiblyTruncated": false, "traceSha256": "a4faa40a5e17b12256857fe970774261e5e95626894ae361968436935c48d099", "ramSha256": "0d7af92b93a976b840e20fed330ee5c1c7a98e03c4b64f5650d7aca4f1b30d0b", "sourceStateSha256": "7e2fe380d96f722603878c18843b376f5db79ba0d586f80de811a97cd997f102", "inputCsv": "0,240,130", "inputSha256": "df2bcdad9c6660b7de4745febfe0f2c4c29e88b7cefdccdf86c0fe50f47dbfc2", "transitions": [ { "frame": 0, "camera": 2048, "playerState": 3, "objects": [ { "slot": 2304, "state": 2, "hp": 0, "x": 177 } ] }, { "frame": 90, "camera": 2048, "playerState": 0, "objects": [ { "slot": 2304, "state": 3, "hp": 0, "x": 177 } ] }, { "frame": 91, "camera": 2048, "playerState": 0, "objects": [ { "slot": 2304, "state": 4, "hp": 0, "x": 177 } ] }, { "frame": 103, "camera": 2048, "playerState": 0, "objects": [ { "slot": 2304, "state": 5, "hp": 0, "x": 177 } ] }, { "frame": 201, "camera": 2048, "playerState": 0, "objects": [] } ], "instructions": [ { "pc": "01C5EA", "offset": "00C5EA", "bytes": "A90080", "size": 3, "mnemonic": "LDA", "operand": "#$8000", "mode": "ImmM", "count": 1, "firstFrame": 90, "lastFrame": 90, "sample": { "p": "85", "a": "FFFD", "x": "0900", "y": "08C0", "d": "6000", "db": "05", "actor": 4, "state": 2 } }, { "pc": "01C5ED", "offset": "00C5ED", "bytes": "8DD668", "size": 3, "mnemonic": "STA", "operand": "$68D6", "mode": "Abs", "count": 1, "firstFrame": 90, "lastFrame": 90, "sample": { "p": "85", "a": "8000", "x": "0900", "y": "08C0", "d": "6000", "db": "05", "actor": 4, "state": 2 } }, { "pc": "01C5F0", "offset": "00C5F0", "bytes": "8D5668", "size": 3, "mnemonic": "STA", "operand": "$6856", "mode": "Abs", "count": 1, "firstFrame": 90, "lastFrame": 90, "sample": { "p": "85", "a": "8000", "x": "0900", "y": "08C0", "d": "6000", "db": "05", "actor": 4, "state": 2 } }, { "pc": "01C5F3", "offset": "00C5F3", "bytes": "8D9668", "size": 3, "mnemonic": "STA", "operand": "$6896", "mode": "Abs", 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"actor": 4, "state": 4 } }, { "pc": "01C637", "offset": "00C637", "bytes": "A90400", "size": 3, "mnemonic": "LDA", "operand": "#$0004", "mode": "ImmM", "count": 98, "firstFrame": 104, "lastFrame": 201, "sample": { "p": "04", "a": "C637", "x": "0900", "y": "000C", "d": "6000", "db": "05", "actor": 4, "state": 5 } } ] }, { "name": "trace-tank", "actor": 9, "frames": 360, "traceRows": 91503, "instructionVariants": 356, "possiblyTruncated": false, "traceSha256": "eee20660a4773e5fab1971080849ee7d783e89fcdc93266ab7757c30f0a8869d", "ramSha256": "5a7f77efb10670b17a5eb1d312a0e9d629389ed3a8621eac7e71587356517171", "sourceStateSha256": "b69207f69a57f8ea80aa1c10983c33e959850aa2d5b75b4fea533dd67bc35610", "inputCsv": "0,360,130\r\n0,1,131\r\n60,61,131\r\n120,121,131\r\n180,181,131", "inputSha256": "795591c41dc137d4ff05528124ac28a52b8f35851c6268b73bf0858a915bb852", "transitions": [ { "frame": 0, "camera": 2248, "playerState": 3, "objects": [ { "slot": 2496, "state": 1, "hp": 16, "x": 186 } ] }, { "frame": 40, "camera": 2305, "playerState": 9, "objects": [ { "slot": 2496, "state": 2, "hp": 16, "x": 129 } ] }, { "frame": 60, "camera": 2333, "playerState": 3, "objects": [ { "slot": 2496, "state": 1, "hp": 16, "x": 103 } ] }, { "frame": 225, "camera": 2565, "playerState": 3, "objects": [ { "slot": 2496, "state": 4, "hp": 16, "x": -129 } ] } ], "instructions": [ { "pc": "01B9E9", "offset": "00B9E9", "bytes": "898000", "size": 3, "mnemonic": "BIT", "operand": "#$0080", "mode": "ImmM", "count": 207, "firstFrame": 0, "lastFrame": 225, "sample": { "p": "06", "a": "0000", "x": "09C0", "y": "0200", "d": "6000", "db": "05", "actor": 9, "state": 1 } }, { "pc": "01BA1C", "offset": "00BA1C", "bytes": "8C5876", "size": 3, "mnemonic": "STY", "operand": "$7658", "mode": "Abs", "count": 1, "firstFrame": 40, "lastFrame": 40, "sample": { "p": "05", "a": "00B1", "x": "09C0", "y": "0200", "d": "6000", "db": "05", "actor": 9, "state": 1 } }, { "pc": "01BA22", "offset": "00BA22", "bytes": "692800", "size": 3, "mnemonic": "ADC", "operand": "#$0028", "mode": "ImmM", "count": 1, "firstFrame": 40, "lastFrame": 40, "sample": { "p": "04", "a": "0081", "x": "09C0", "y": "0200", "d": "6000", "db": "05", "actor": 9, "state": 1 } }, { "pc": "01BA25", "offset": "00BA25", "bytes": "990A60", "size": 3, "mnemonic": "STA", "operand": "$600A,Y", "mode": "AbsIdxY", "count": 1, "firstFrame": 40, "lastFrame": 40, "sample": { "p": "04", "a": "00A9", "x": "09C0", "y": "0200", "d": "6000", "db": "05", "actor": 9, "state": 1 } }, { "pc": "01BA28", "offset": "00BA28", "bytes": "A90900", "size": 3, "mnemonic": "LDA", "operand": "#$0009", "mode": "ImmM", "count": 1, "firstFrame": 40, "lastFrame": 40, "sample": { "p": "04", "a": "00A9", "x": "09C0", "y": "0200", "d": "6000", "db": "05", "actor": 9, "state": 1 } }, { "pc": "01BA2B", "offset": "00BA2B", "bytes": "991260", "size": 3, "mnemonic": "STA", "operand": "$6012,Y", "mode": "AbsIdxY", "count": 1, "firstFrame": 40, "lastFrame": 40, "sample": { "p": 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