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      "bytes": 324,
      "prefix_bytes": 68,
      "prefix_hex": "10 00 01 00 ff ff 00 00 00 00 00 05 00 00 00 00 00 01 01 00 00 00 00 00 00 00 00 00 00 00 00 80 08 00 00 00 0b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00",
      "prefix_words_le": [
        16,
        1,
        65535,
        0,
        0,
        1280,
        0,
        0,
        256,
        1,
        0,
        0,
        0,
        0,
        0,
        32768,
        8,
        0,
        11,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0
      ],
      "ivt_file_offset": 68,
      "ivt_bytes": 256,
      "vectors": [
        {
          "interrupt": 0,
          "file_offset": 68,
          "raw_hex": "bb 00 f1 3d",
          "segment": 15857,
          "offset": 187,
          "address": "3df1:00bb",
          "role": "Divide error",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 1,
          "file_offset": 72,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Single-step",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 2,
          "file_offset": 76,
          "raw_hex": "42 24 de 3f",
          "segment": 16350,
          "offset": 9282,
          "address": "3fde:2442",
          "role": "Non-maskable interrupt",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 3,
          "file_offset": 80,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Breakpoint",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 4,
          "file_offset": 84,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Overflow",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 5,
          "file_offset": 88,
          "raw_hex": "14 00 2f 01",
          "segment": 303,
          "offset": 20,
          "address": "012f:0014",
          "role": "Print Screen",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 6,
          "file_offset": 92,
          "raw_hex": "18 00 2f 01",
          "segment": 303,
          "offset": 24,
          "address": "012f:0018",
          "role": "Invalid opcode",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 7,
          "file_offset": 96,
          "raw_hex": "1c 00 2f 01",
          "segment": 303,
          "offset": 28,
          "address": "012f:001c",
          "role": "Coprocessor unavailable",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 8,
          "file_offset": 100,
          "raw_hex": "45 06 b4 d0",
          "segment": 53428,
          "offset": 1605,
          "address": "d0b4:0645",
          "role": "Timer IRQ",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 9,
          "file_offset": 104,
          "raw_hex": "04 01 f8 b6",
          "segment": 46840,
          "offset": 260,
          "address": "b6f8:0104",
          "role": "Keyboard IRQ",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 10,
          "file_offset": 108,
          "raw_hex": "28 00 2e 01",
          "segment": 302,
          "offset": 40,
          "address": "012e:0028",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 11,
          "file_offset": 112,
          "raw_hex": "2c 00 2e 01",
          "segment": 302,
          "offset": 44,
          "address": "012e:002c",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 12,
          "file_offset": 116,
          "raw_hex": "12 1e 71 d7",
          "segment": 55153,
          "offset": 7698,
          "address": "d771:1e12",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 13,
          "file_offset": 120,
          "raw_hex": "1a 32 b4 d0",
          "segment": 53428,
          "offset": 12826,
          "address": "d0b4:321a",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 14,
          "file_offset": 124,
          "raw_hex": "38 00 2d 01",
          "segment": 301,
          "offset": 56,
          "address": "012d:0038",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 15,
          "file_offset": 128,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 16,
          "file_offset": 132,
          "raw_hex": "bf 18 71 d7",
          "segment": 55153,
          "offset": 6335,
          "address": "d771:18bf",
          "role": "Video BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 17,
          "file_offset": 136,
          "raw_hex": "44 00 2c 01",
          "segment": 300,
          "offset": 68,
          "address": "012c:0044",
          "role": "Equipment list",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 18,
          "file_offset": 140,
          "raw_hex": "48 00 2c 01",
          "segment": 300,
          "offset": 72,
          "address": "012c:0048",
          "role": "Conventional memory size",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 19,
          "file_offset": 144,
          "raw_hex": "b7 07 01 b0",
          "segment": 45057,
          "offset": 1975,
          "address": "b001:07b7",
          "role": "Disk BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 20,
          "file_offset": 148,
          "raw_hex": "50 00 2b 01",
          "segment": 299,
          "offset": 80,
          "address": "012b:0050",
          "role": "Serial BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 21,
          "file_offset": 152,
          "raw_hex": "21 05 01 b0",
          "segment": 45057,
          "offset": 1313,
          "address": "b001:0521",
          "role": "System BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 22,
          "file_offset": 156,
          "raw_hex": "58 00 2b 01",
          "segment": 299,
          "offset": 88,
          "address": "012b:0058",
          "role": "Keyboard BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 23,
          "file_offset": 160,
          "raw_hex": "c4 16 29 d5",
          "segment": 54569,
          "offset": 5828,
          "address": "d529:16c4",
          "role": "Printer BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 24,
          "file_offset": 164,
          "raw_hex": "60 00 2a 01",
          "segment": 298,
          "offset": 96,
          "address": "012a:0060",
          "role": "ROM BASIC",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 25,
          "file_offset": 168,
          "raw_hex": "2f 00 3a 01",
          "segment": 314,
          "offset": 47,
          "address": "013a:002f",
          "role": "Bootstrap",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 26,
          "file_offset": 172,
          "raw_hex": "68 00 2a 01",
          "segment": 298,
          "offset": 104,
          "address": "012a:0068",
          "role": "BIOS clock",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 27,
          "file_offset": 176,
          "raw_hex": "93 0a 29 d5",
          "segment": 54569,
          "offset": 2707,
          "address": "d529:0a93",
          "role": "Ctrl-Break",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 28,
          "file_offset": 180,
          "raw_hex": "d0 ff 00 f0",
          "segment": 61440,
          "offset": 65488,
          "address": "f000:ffd0",
          "role": "User timer tick",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 29,
          "file_offset": 184,
          "raw_hex": "04 00 a2 b0",
          "segment": 45218,
          "offset": 4,
          "address": "b0a2:0004",
          "role": "Video parameter table",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 30,
          "file_offset": 188,
          "raw_hex": "22 05 00 00",
          "segment": 0,
          "offset": 1314,
          "address": "0000:0522",
          "role": "Diskette parameter table",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 31,
          "file_offset": 192,
          "raw_hex": "ee 19 a2 b0",
          "segment": 45218,
          "offset": 6638,
          "address": "b0a2:19ee",
          "role": "Graphics character table",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 32,
          "file_offset": 196,
          "raw_hex": "b0 0a 29 d5",
          "segment": 54569,
          "offset": 2736,
          "address": "d529:0ab0",
          "role": "DOS termination",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 33,
          "file_offset": 200,
          "raw_hex": "b2 0a 29 d5",
          "segment": 54569,
          "offset": 2738,
          "address": "d529:0ab2",
          "role": "DOS services",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 34,
          "file_offset": 204,
          "raw_hex": "db 03 3f 01",
          "segment": 319,
          "offset": 987,
          "address": "013f:03db",
          "role": "Process termination address",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 35,
          "file_offset": 208,
          "raw_hex": "21 0b f1 3d",
          "segment": 15857,
          "offset": 2849,
          "address": "3df1:0b21",
          "role": "DOS Ctrl-Break",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 36,
          "file_offset": 212,
          "raw_hex": "d8 05 c7 23",
          "segment": 9159,
          "offset": 1496,
          "address": "23c7:05d8",
          "role": "DOS critical error",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 37,
          "file_offset": 216,
          "raw_hex": "14 00 02 01",
          "segment": 258,
          "offset": 20,
          "address": "0102:0014",
          "role": "Absolute disk read",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 38,
          "file_offset": 220,
          "raw_hex": "19 00 02 01",
          "segment": 258,
          "offset": 25,
          "address": "0102:0019",
          "role": "Absolute disk write",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 39,
          "file_offset": 224,
          "raw_hex": "02 0b 29 d5",
          "segment": 54569,
          "offset": 2818,
          "address": "d529:0b02",
          "role": "Terminate and stay resident",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 40,
          "file_offset": 228,
          "raw_hex": "0f 00 02 01",
          "segment": 258,
          "offset": 15,
          "address": "0102:000f",
          "role": "DOS idle",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 41,
          "file_offset": 232,
          "raw_hex": "10 05 1e b5",
          "segment": 46366,
          "offset": 1296,
          "address": "b51e:0510",
          "role": "Fast console output",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 42,
          "file_offset": 236,
          "raw_hex": "0f 00 02 01",
          "segment": 258,
          "offset": 15,
          "address": "0102:000f",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 43,
          "file_offset": 240,
          "raw_hex": "0f 00 02 01",
          "segment": 258,
          "offset": 15,
          "address": "0102:000f",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 44,
          "file_offset": 244,
          "raw_hex": "0f 00 02 01",
          "segment": 258,
          "offset": 15,
          "address": "0102:000f",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 45,
          "file_offset": 248,
          "raw_hex": "0f 00 02 01",
          "segment": 258,
          "offset": 15,
          "address": "0102:000f",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 46,
          "file_offset": 252,
          "raw_hex": "dd 06 3f 01",
          "segment": 319,
          "offset": 1757,
          "address": "013f:06dd",
          "role": "DOS command entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 47,
          "file_offset": 256,
          "raw_hex": "5b 0d 29 d5",
          "segment": 54569,
          "offset": 3419,
          "address": "d529:0d5b",
          "role": "Multiplex services",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 48,
          "file_offset": 260,
          "raw_hex": "ea 28 00 02",
          "segment": 512,
          "offset": 10474,
          "address": "0200:28ea",
          "role": "CP/M compatibility far jump (not a vector)",
          "fixed_bios_entry_match": false,
          "address_interpretation": "inline compatibility code"
        },
        {
          "interrupt": 49,
          "file_offset": 264,
          "raw_hex": "01 ea 00 f0",
          "segment": 61440,
          "offset": 59905,
          "address": "f000:ea01",
          "role": "Overlapped by the CP/M jump; not interpreted as a handler",
          "fixed_bios_entry_match": false,
          "address_interpretation": "inline compatibility code"
        },
        {
          "interrupt": 50,
          "file_offset": 268,
          "raw_hex": "0f 00 02 01",
          "segment": 258,
          "offset": 15,
          "address": "0102:000f",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 51,
          "file_offset": 272,
          "raw_hex": "2d 04 71 d7",
          "segment": 55153,
          "offset": 1069,
          "address": "d771:042d",
          "role": "Mouse driver",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 52,
          "file_offset": 276,
          "raw_hex": "e2 06 de 3f",
          "segment": 16350,
          "offset": 1762,
          "address": "3fde:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 53,
          "file_offset": 280,
          "raw_hex": "e2 06 de 3f",
          "segment": 16350,
          "offset": 1762,
          "address": "3fde:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 54,
          "file_offset": 284,
          "raw_hex": "e2 06 de 3f",
          "segment": 16350,
          "offset": 1762,
          "address": "3fde:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 55,
          "file_offset": 288,
          "raw_hex": "e2 06 de 3f",
          "segment": 16350,
          "offset": 1762,
          "address": "3fde:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 56,
          "file_offset": 292,
          "raw_hex": "e2 06 de 3f",
          "segment": 16350,
          "offset": 1762,
          "address": "3fde:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 57,
          "file_offset": 296,
          "raw_hex": "e2 06 de 3f",
          "segment": 16350,
          "offset": 1762,
          "address": "3fde:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 58,
          "file_offset": 300,
          "raw_hex": "e2 06 de 3f",
          "segment": 16350,
          "offset": 1762,
          "address": "3fde:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 59,
          "file_offset": 304,
          "raw_hex": "e2 06 de 3f",
          "segment": 16350,
          "offset": 1762,
          "address": "3fde:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 60,
          "file_offset": 308,
          "raw_hex": "ad 06 de 3f",
          "segment": 16350,
          "offset": 1709,
          "address": "3fde:06ad",
          "role": "Possible x87 emulation prefixes",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 61,
          "file_offset": 312,
          "raw_hex": "da 06 de 3f",
          "segment": 16350,
          "offset": 1754,
          "address": "3fde:06da",
          "role": "Possible x87 emulation FWAIT",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 62,
          "file_offset": 316,
          "raw_hex": "0f 00 02 01",
          "segment": 258,
          "offset": 15,
          "address": "0102:000f",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 63,
          "file_offset": 320,
          "raw_hex": "0f 00 02 01",
          "segment": 258,
          "offset": 15,
          "address": "0102:000f",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        }
      ],
      "fixed_bios_entry_matches": 0,
      "cpm_far_jump": {
        "file_offset": 260,
        "raw_hex": "ea 28 00 02 01",
        "target": "0102:0028"
      },
      "scope": "Bytes 68\u2013323 reproduce real-mode memory 0000:0000\u20130000:00ff: the first 64 interrupt-vector slots, including fixed BIOS addresses and the overlapping CP/M far jump. The preceding 68 bytes, writer, filename and game use remain unidentified. A saved context or accidental low-memory write is possible; neither is proven."
    },
    {
      "id": "9af21b6b",
      "sha256": "adbe01b63cf867d22b9f9771f6e34f39b1c8adce586f5c32cb34c127e9ffa51d",
      "bytes": 324,
      "prefix_bytes": 68,
      "prefix_hex": "10 00 01 00 ff ff 00 00 00 00 00 05 00 01 00 00 00 01 01 00 00 00 00 00 00 00 00 00 00 00 00 80 08 00 00 00 0b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00",
      "prefix_words_le": [
        16,
        1,
        65535,
        0,
        0,
        1280,
        256,
        0,
        256,
        1,
        0,
        0,
        0,
        0,
        0,
        32768,
        8,
        0,
        11,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0
      ],
      "ivt_file_offset": 68,
      "ivt_bytes": 256,
      "vectors": [
        {
          "interrupt": 0,
          "file_offset": 68,
          "raw_hex": "bb 00 72 42",
          "segment": 17010,
          "offset": 187,
          "address": "4272:00bb",
          "role": "Divide error",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 1,
          "file_offset": 72,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Single-step",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 2,
          "file_offset": 76,
          "raw_hex": "42 24 5f 44",
          "segment": 17503,
          "offset": 9282,
          "address": "445f:2442",
          "role": "Non-maskable interrupt",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 3,
          "file_offset": 80,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Breakpoint",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 4,
          "file_offset": 84,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Overflow",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 5,
          "file_offset": 88,
          "raw_hex": "54 ff 00 f0",
          "segment": 61440,
          "offset": 65364,
          "address": "f000:ff54",
          "role": "Print Screen",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 6,
          "file_offset": 92,
          "raw_hex": "43 eb 00 f0",
          "segment": 61440,
          "offset": 60227,
          "address": "f000:eb43",
          "role": "Invalid opcode",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 7,
          "file_offset": 96,
          "raw_hex": "eb ea 00 f0",
          "segment": 61440,
          "offset": 60139,
          "address": "f000:eaeb",
          "role": "Coprocessor unavailable",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 8,
          "file_offset": 100,
          "raw_hex": "45 06 b2 cb",
          "segment": 52146,
          "offset": 1605,
          "address": "cbb2:0645",
          "role": "Timer IRQ",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 9,
          "file_offset": 104,
          "raw_hex": "45 00 4c 05",
          "segment": 1356,
          "offset": 69,
          "address": "054c:0045",
          "role": "Keyboard IRQ",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 10,
          "file_offset": 108,
          "raw_hex": "57 00 4c 05",
          "segment": 1356,
          "offset": 87,
          "address": "054c:0057",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 11,
          "file_offset": 112,
          "raw_hex": "6f 00 4c 05",
          "segment": 1356,
          "offset": 111,
          "address": "054c:006f",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 12,
          "file_offset": 116,
          "raw_hex": "12 1e 7e c9",
          "segment": 51582,
          "offset": 7698,
          "address": "c97e:1e12",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 13,
          "file_offset": 120,
          "raw_hex": "1a 32 b2 cb",
          "segment": 52146,
          "offset": 12826,
          "address": "cbb2:321a",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 14,
          "file_offset": 124,
          "raw_hex": "b7 00 4c 05",
          "segment": 1356,
          "offset": 183,
          "address": "054c:00b7",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 15,
          "file_offset": 128,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 16,
          "file_offset": 132,
          "raw_hex": "82 0a 3c d0",
          "segment": 53308,
          "offset": 2690,
          "address": "d03c:0a82",
          "role": "Video BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 17,
          "file_offset": 136,
          "raw_hex": "4d f8 00 f0",
          "segment": 61440,
          "offset": 63565,
          "address": "f000:f84d",
          "role": "Equipment list",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 18,
          "file_offset": 140,
          "raw_hex": "41 f8 00 f0",
          "segment": 61440,
          "offset": 63553,
          "address": "f000:f841",
          "role": "Conventional memory size",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 19,
          "file_offset": 144,
          "raw_hex": "30 05 af 02",
          "segment": 687,
          "offset": 1328,
          "address": "02af:0530",
          "role": "Disk BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 20,
          "file_offset": 148,
          "raw_hex": "39 e7 00 f0",
          "segment": 61440,
          "offset": 59193,
          "address": "f000:e739",
          "role": "Serial BIOS",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 21,
          "file_offset": 152,
          "raw_hex": "5a 05 af 02",
          "segment": 687,
          "offset": 1370,
          "address": "02af:055a",
          "role": "System BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 22,
          "file_offset": 156,
          "raw_hex": "2e e8 00 f0",
          "segment": 61440,
          "offset": 59438,
          "address": "f000:e82e",
          "role": "Keyboard BIOS",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 23,
          "file_offset": 160,
          "raw_hex": "c4 16 3c d0",
          "segment": 53308,
          "offset": 5828,
          "address": "d03c:16c4",
          "role": "Printer BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 24,
          "file_offset": 164,
          "raw_hex": "00 e0 00 f0",
          "segment": 61440,
          "offset": 57344,
          "address": "f000:e000",
          "role": "ROM BASIC",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 25,
          "file_offset": 168,
          "raw_hex": "2f 00 c1 05",
          "segment": 1473,
          "offset": 47,
          "address": "05c1:002f",
          "role": "Bootstrap",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 26,
          "file_offset": 172,
          "raw_hex": "6e fe 00 f0",
          "segment": 61440,
          "offset": 65134,
          "address": "f000:fe6e",
          "role": "BIOS clock",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 27,
          "file_offset": 176,
          "raw_hex": "93 0a 3c d0",
          "segment": 53308,
          "offset": 2707,
          "address": "d03c:0a93",
          "role": "Ctrl-Break",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 28,
          "file_offset": 180,
          "raw_hex": "53 ff 00 f0",
          "segment": 61440,
          "offset": 65363,
          "address": "f000:ff53",
          "role": "User timer tick",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 29,
          "file_offset": 184,
          "raw_hex": "a4 f0 00 f0",
          "segment": 61440,
          "offset": 61604,
          "address": "f000:f0a4",
          "role": "Video parameter table",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 30,
          "file_offset": 188,
          "raw_hex": "22 05 00 00",
          "segment": 0,
          "offset": 1314,
          "address": "0000:0522",
          "role": "Diskette parameter table",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 31,
          "file_offset": 192,
          "raw_hex": "5c 47 00 c0",
          "segment": 49152,
          "offset": 18268,
          "address": "c000:475c",
          "role": "Graphics character table",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 32,
          "file_offset": 196,
          "raw_hex": "b0 0a 3c d0",
          "segment": 53308,
          "offset": 2736,
          "address": "d03c:0ab0",
          "role": "DOS termination",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 33,
          "file_offset": 200,
          "raw_hex": "b2 0a 3c d0",
          "segment": 53308,
          "offset": 2738,
          "address": "d03c:0ab2",
          "role": "DOS services",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 34,
          "file_offset": 204,
          "raw_hex": "d7 03 c6 05",
          "segment": 1478,
          "offset": 983,
          "address": "05c6:03d7",
          "role": "Process termination address",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 35,
          "file_offset": 208,
          "raw_hex": "21 0b 72 42",
          "segment": 17010,
          "offset": 2849,
          "address": "4272:0b21",
          "role": "DOS Ctrl-Break",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 36,
          "file_offset": 212,
          "raw_hex": "d8 05 48 28",
          "segment": 10312,
          "offset": 1496,
          "address": "2848:05d8",
          "role": "DOS critical error",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 37,
          "file_offset": 216,
          "raw_hex": "a8 10 23 01",
          "segment": 291,
          "offset": 4264,
          "address": "0123:10a8",
          "role": "Absolute disk read",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 38,
          "file_offset": 220,
          "raw_hex": "b2 10 23 01",
          "segment": 291,
          "offset": 4274,
          "address": "0123:10b2",
          "role": "Absolute disk write",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 39,
          "file_offset": 224,
          "raw_hex": "02 0b 3c d0",
          "segment": 53308,
          "offset": 2818,
          "address": "d03c:0b02",
          "role": "Terminate and stay resident",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 40,
          "file_offset": 228,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "DOS idle",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 41,
          "file_offset": 232,
          "raw_hex": "10 05 72 03",
          "segment": 882,
          "offset": 1296,
          "address": "0372:0510",
          "role": "Fast console output",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 42,
          "file_offset": 236,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 43,
          "file_offset": 240,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 44,
          "file_offset": 244,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 45,
          "file_offset": 248,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 46,
          "file_offset": 252,
          "raw_hex": "cb 06 c6 05",
          "segment": 1478,
          "offset": 1739,
          "address": "05c6:06cb",
          "role": "DOS command entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 47,
          "file_offset": 256,
          "raw_hex": "5b 0d 3c d0",
          "segment": 53308,
          "offset": 3419,
          "address": "d03c:0d5b",
          "role": "Multiplex services",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 48,
          "file_offset": 260,
          "raw_hex": "ea d0 10 23",
          "segment": 8976,
          "offset": 53482,
          "address": "2310:d0ea",
          "role": "CP/M compatibility far jump (not a vector)",
          "fixed_bios_entry_match": false,
          "address_interpretation": "inline compatibility code"
        },
        {
          "interrupt": 49,
          "file_offset": 264,
          "raw_hex": "01 ea 00 f0",
          "segment": 61440,
          "offset": 59905,
          "address": "f000:ea01",
          "role": "Overlapped by the CP/M jump; not interpreted as a handler",
          "fixed_bios_entry_match": false,
          "address_interpretation": "inline compatibility code"
        },
        {
          "interrupt": 50,
          "file_offset": 268,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 51,
          "file_offset": 272,
          "raw_hex": "2d 04 7e c9",
          "segment": 51582,
          "offset": 1069,
          "address": "c97e:042d",
          "role": "Mouse driver",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 52,
          "file_offset": 276,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 53,
          "file_offset": 280,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 54,
          "file_offset": 284,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 55,
          "file_offset": 288,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 56,
          "file_offset": 292,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 57,
          "file_offset": 296,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 58,
          "file_offset": 300,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 59,
          "file_offset": 304,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 60,
          "file_offset": 308,
          "raw_hex": "ad 06 5f 44",
          "segment": 17503,
          "offset": 1709,
          "address": "445f:06ad",
          "role": "Possible x87 emulation prefixes",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 61,
          "file_offset": 312,
          "raw_hex": "da 06 5f 44",
          "segment": 17503,
          "offset": 1754,
          "address": "445f:06da",
          "role": "Possible x87 emulation FWAIT",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 62,
          "file_offset": 316,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 63,
          "file_offset": 320,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        }
      ],
      "fixed_bios_entry_matches": 9,
      "cpm_far_jump": {
        "file_offset": 260,
        "raw_hex": "ea d0 10 23 01",
        "target": "0123:10d0"
      },
      "scope": "Bytes 68\u2013323 reproduce real-mode memory 0000:0000\u20130000:00ff: the first 64 interrupt-vector slots, including fixed BIOS addresses and the overlapping CP/M far jump. The preceding 68 bytes, writer, filename and game use remain unidentified. A saved context or accidental low-memory write is possible; neither is proven."
    },
    {
      "id": "9d0a9b6b",
      "sha256": "adbe01b63cf867d22b9f9771f6e34f39b1c8adce586f5c32cb34c127e9ffa51d",
      "bytes": 324,
      "prefix_bytes": 68,
      "prefix_hex": "10 00 01 00 ff ff 00 00 00 00 00 05 00 01 00 00 00 01 01 00 00 00 00 00 00 00 00 00 00 00 00 80 08 00 00 00 0b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00",
      "prefix_words_le": [
        16,
        1,
        65535,
        0,
        0,
        1280,
        256,
        0,
        256,
        1,
        0,
        0,
        0,
        0,
        0,
        32768,
        8,
        0,
        11,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0
      ],
      "ivt_file_offset": 68,
      "ivt_bytes": 256,
      "vectors": [
        {
          "interrupt": 0,
          "file_offset": 68,
          "raw_hex": "bb 00 72 42",
          "segment": 17010,
          "offset": 187,
          "address": "4272:00bb",
          "role": "Divide error",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 1,
          "file_offset": 72,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Single-step",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 2,
          "file_offset": 76,
          "raw_hex": "42 24 5f 44",
          "segment": 17503,
          "offset": 9282,
          "address": "445f:2442",
          "role": "Non-maskable interrupt",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 3,
          "file_offset": 80,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Breakpoint",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 4,
          "file_offset": 84,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Overflow",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 5,
          "file_offset": 88,
          "raw_hex": "54 ff 00 f0",
          "segment": 61440,
          "offset": 65364,
          "address": "f000:ff54",
          "role": "Print Screen",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 6,
          "file_offset": 92,
          "raw_hex": "43 eb 00 f0",
          "segment": 61440,
          "offset": 60227,
          "address": "f000:eb43",
          "role": "Invalid opcode",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 7,
          "file_offset": 96,
          "raw_hex": "eb ea 00 f0",
          "segment": 61440,
          "offset": 60139,
          "address": "f000:eaeb",
          "role": "Coprocessor unavailable",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 8,
          "file_offset": 100,
          "raw_hex": "45 06 b2 cb",
          "segment": 52146,
          "offset": 1605,
          "address": "cbb2:0645",
          "role": "Timer IRQ",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 9,
          "file_offset": 104,
          "raw_hex": "45 00 4c 05",
          "segment": 1356,
          "offset": 69,
          "address": "054c:0045",
          "role": "Keyboard IRQ",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 10,
          "file_offset": 108,
          "raw_hex": "57 00 4c 05",
          "segment": 1356,
          "offset": 87,
          "address": "054c:0057",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 11,
          "file_offset": 112,
          "raw_hex": "6f 00 4c 05",
          "segment": 1356,
          "offset": 111,
          "address": "054c:006f",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 12,
          "file_offset": 116,
          "raw_hex": "12 1e 7e c9",
          "segment": 51582,
          "offset": 7698,
          "address": "c97e:1e12",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 13,
          "file_offset": 120,
          "raw_hex": "1a 32 b2 cb",
          "segment": 52146,
          "offset": 12826,
          "address": "cbb2:321a",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 14,
          "file_offset": 124,
          "raw_hex": "b7 00 4c 05",
          "segment": 1356,
          "offset": 183,
          "address": "054c:00b7",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 15,
          "file_offset": 128,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 16,
          "file_offset": 132,
          "raw_hex": "82 0a 3c d0",
          "segment": 53308,
          "offset": 2690,
          "address": "d03c:0a82",
          "role": "Video BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 17,
          "file_offset": 136,
          "raw_hex": "4d f8 00 f0",
          "segment": 61440,
          "offset": 63565,
          "address": "f000:f84d",
          "role": "Equipment list",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 18,
          "file_offset": 140,
          "raw_hex": "41 f8 00 f0",
          "segment": 61440,
          "offset": 63553,
          "address": "f000:f841",
          "role": "Conventional memory size",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 19,
          "file_offset": 144,
          "raw_hex": "30 05 af 02",
          "segment": 687,
          "offset": 1328,
          "address": "02af:0530",
          "role": "Disk BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 20,
          "file_offset": 148,
          "raw_hex": "39 e7 00 f0",
          "segment": 61440,
          "offset": 59193,
          "address": "f000:e739",
          "role": "Serial BIOS",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 21,
          "file_offset": 152,
          "raw_hex": "5a 05 af 02",
          "segment": 687,
          "offset": 1370,
          "address": "02af:055a",
          "role": "System BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 22,
          "file_offset": 156,
          "raw_hex": "2e e8 00 f0",
          "segment": 61440,
          "offset": 59438,
          "address": "f000:e82e",
          "role": "Keyboard BIOS",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 23,
          "file_offset": 160,
          "raw_hex": "c4 16 3c d0",
          "segment": 53308,
          "offset": 5828,
          "address": "d03c:16c4",
          "role": "Printer BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 24,
          "file_offset": 164,
          "raw_hex": "00 e0 00 f0",
          "segment": 61440,
          "offset": 57344,
          "address": "f000:e000",
          "role": "ROM BASIC",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 25,
          "file_offset": 168,
          "raw_hex": "2f 00 c1 05",
          "segment": 1473,
          "offset": 47,
          "address": "05c1:002f",
          "role": "Bootstrap",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 26,
          "file_offset": 172,
          "raw_hex": "6e fe 00 f0",
          "segment": 61440,
          "offset": 65134,
          "address": "f000:fe6e",
          "role": "BIOS clock",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 27,
          "file_offset": 176,
          "raw_hex": "93 0a 3c d0",
          "segment": 53308,
          "offset": 2707,
          "address": "d03c:0a93",
          "role": "Ctrl-Break",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 28,
          "file_offset": 180,
          "raw_hex": "53 ff 00 f0",
          "segment": 61440,
          "offset": 65363,
          "address": "f000:ff53",
          "role": "User timer tick",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 29,
          "file_offset": 184,
          "raw_hex": "a4 f0 00 f0",
          "segment": 61440,
          "offset": 61604,
          "address": "f000:f0a4",
          "role": "Video parameter table",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 30,
          "file_offset": 188,
          "raw_hex": "22 05 00 00",
          "segment": 0,
          "offset": 1314,
          "address": "0000:0522",
          "role": "Diskette parameter table",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 31,
          "file_offset": 192,
          "raw_hex": "5c 47 00 c0",
          "segment": 49152,
          "offset": 18268,
          "address": "c000:475c",
          "role": "Graphics character table",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 32,
          "file_offset": 196,
          "raw_hex": "b0 0a 3c d0",
          "segment": 53308,
          "offset": 2736,
          "address": "d03c:0ab0",
          "role": "DOS termination",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 33,
          "file_offset": 200,
          "raw_hex": "b2 0a 3c d0",
          "segment": 53308,
          "offset": 2738,
          "address": "d03c:0ab2",
          "role": "DOS services",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 34,
          "file_offset": 204,
          "raw_hex": "d7 03 c6 05",
          "segment": 1478,
          "offset": 983,
          "address": "05c6:03d7",
          "role": "Process termination address",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 35,
          "file_offset": 208,
          "raw_hex": "21 0b 72 42",
          "segment": 17010,
          "offset": 2849,
          "address": "4272:0b21",
          "role": "DOS Ctrl-Break",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 36,
          "file_offset": 212,
          "raw_hex": "d8 05 48 28",
          "segment": 10312,
          "offset": 1496,
          "address": "2848:05d8",
          "role": "DOS critical error",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 37,
          "file_offset": 216,
          "raw_hex": "a8 10 23 01",
          "segment": 291,
          "offset": 4264,
          "address": "0123:10a8",
          "role": "Absolute disk read",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 38,
          "file_offset": 220,
          "raw_hex": "b2 10 23 01",
          "segment": 291,
          "offset": 4274,
          "address": "0123:10b2",
          "role": "Absolute disk write",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 39,
          "file_offset": 224,
          "raw_hex": "02 0b 3c d0",
          "segment": 53308,
          "offset": 2818,
          "address": "d03c:0b02",
          "role": "Terminate and stay resident",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 40,
          "file_offset": 228,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "DOS idle",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 41,
          "file_offset": 232,
          "raw_hex": "10 05 72 03",
          "segment": 882,
          "offset": 1296,
          "address": "0372:0510",
          "role": "Fast console output",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 42,
          "file_offset": 236,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 43,
          "file_offset": 240,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 44,
          "file_offset": 244,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 45,
          "file_offset": 248,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 46,
          "file_offset": 252,
          "raw_hex": "cb 06 c6 05",
          "segment": 1478,
          "offset": 1739,
          "address": "05c6:06cb",
          "role": "DOS command entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 47,
          "file_offset": 256,
          "raw_hex": "5b 0d 3c d0",
          "segment": 53308,
          "offset": 3419,
          "address": "d03c:0d5b",
          "role": "Multiplex services",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 48,
          "file_offset": 260,
          "raw_hex": "ea d0 10 23",
          "segment": 8976,
          "offset": 53482,
          "address": "2310:d0ea",
          "role": "CP/M compatibility far jump (not a vector)",
          "fixed_bios_entry_match": false,
          "address_interpretation": "inline compatibility code"
        },
        {
          "interrupt": 49,
          "file_offset": 264,
          "raw_hex": "01 ea 00 f0",
          "segment": 61440,
          "offset": 59905,
          "address": "f000:ea01",
          "role": "Overlapped by the CP/M jump; not interpreted as a handler",
          "fixed_bios_entry_match": false,
          "address_interpretation": "inline compatibility code"
        },
        {
          "interrupt": 50,
          "file_offset": 268,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 51,
          "file_offset": 272,
          "raw_hex": "2d 04 7e c9",
          "segment": 51582,
          "offset": 1069,
          "address": "c97e:042d",
          "role": "Mouse driver",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 52,
          "file_offset": 276,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 53,
          "file_offset": 280,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 54,
          "file_offset": 284,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 55,
          "file_offset": 288,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 56,
          "file_offset": 292,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 57,
          "file_offset": 296,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 58,
          "file_offset": 300,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 59,
          "file_offset": 304,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 60,
          "file_offset": 308,
          "raw_hex": "ad 06 5f 44",
          "segment": 17503,
          "offset": 1709,
          "address": "445f:06ad",
          "role": "Possible x87 emulation prefixes",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 61,
          "file_offset": 312,
          "raw_hex": "da 06 5f 44",
          "segment": 17503,
          "offset": 1754,
          "address": "445f:06da",
          "role": "Possible x87 emulation FWAIT",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 62,
          "file_offset": 316,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 63,
          "file_offset": 320,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        }
      ],
      "fixed_bios_entry_matches": 9,
      "cpm_far_jump": {
        "file_offset": 260,
        "raw_hex": "ea d0 10 23 01",
        "target": "0123:10d0"
      },
      "scope": "Bytes 68\u2013323 reproduce real-mode memory 0000:0000\u20130000:00ff: the first 64 interrupt-vector slots, including fixed BIOS addresses and the overlapping CP/M far jump. The preceding 68 bytes, writer, filename and game use remain unidentified. A saved context or accidental low-memory write is possible; neither is proven."
    },
    {
      "id": "9f9a9b6b",
      "sha256": "adbe01b63cf867d22b9f9771f6e34f39b1c8adce586f5c32cb34c127e9ffa51d",
      "bytes": 324,
      "prefix_bytes": 68,
      "prefix_hex": "10 00 01 00 ff ff 00 00 00 00 00 05 00 01 00 00 00 01 01 00 00 00 00 00 00 00 00 00 00 00 00 80 08 00 00 00 0b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00",
      "prefix_words_le": [
        16,
        1,
        65535,
        0,
        0,
        1280,
        256,
        0,
        256,
        1,
        0,
        0,
        0,
        0,
        0,
        32768,
        8,
        0,
        11,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0
      ],
      "ivt_file_offset": 68,
      "ivt_bytes": 256,
      "vectors": [
        {
          "interrupt": 0,
          "file_offset": 68,
          "raw_hex": "bb 00 72 42",
          "segment": 17010,
          "offset": 187,
          "address": "4272:00bb",
          "role": "Divide error",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 1,
          "file_offset": 72,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Single-step",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 2,
          "file_offset": 76,
          "raw_hex": "42 24 5f 44",
          "segment": 17503,
          "offset": 9282,
          "address": "445f:2442",
          "role": "Non-maskable interrupt",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 3,
          "file_offset": 80,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Breakpoint",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 4,
          "file_offset": 84,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Overflow",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 5,
          "file_offset": 88,
          "raw_hex": "54 ff 00 f0",
          "segment": 61440,
          "offset": 65364,
          "address": "f000:ff54",
          "role": "Print Screen",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 6,
          "file_offset": 92,
          "raw_hex": "43 eb 00 f0",
          "segment": 61440,
          "offset": 60227,
          "address": "f000:eb43",
          "role": "Invalid opcode",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 7,
          "file_offset": 96,
          "raw_hex": "eb ea 00 f0",
          "segment": 61440,
          "offset": 60139,
          "address": "f000:eaeb",
          "role": "Coprocessor unavailable",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 8,
          "file_offset": 100,
          "raw_hex": "45 06 b2 cb",
          "segment": 52146,
          "offset": 1605,
          "address": "cbb2:0645",
          "role": "Timer IRQ",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 9,
          "file_offset": 104,
          "raw_hex": "45 00 4c 05",
          "segment": 1356,
          "offset": 69,
          "address": "054c:0045",
          "role": "Keyboard IRQ",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 10,
          "file_offset": 108,
          "raw_hex": "57 00 4c 05",
          "segment": 1356,
          "offset": 87,
          "address": "054c:0057",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 11,
          "file_offset": 112,
          "raw_hex": "6f 00 4c 05",
          "segment": 1356,
          "offset": 111,
          "address": "054c:006f",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 12,
          "file_offset": 116,
          "raw_hex": "12 1e 7e c9",
          "segment": 51582,
          "offset": 7698,
          "address": "c97e:1e12",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 13,
          "file_offset": 120,
          "raw_hex": "1a 32 b2 cb",
          "segment": 52146,
          "offset": 12826,
          "address": "cbb2:321a",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 14,
          "file_offset": 124,
          "raw_hex": "b7 00 4c 05",
          "segment": 1356,
          "offset": 183,
          "address": "054c:00b7",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 15,
          "file_offset": 128,
          "raw_hex": "f4 06 70 00",
          "segment": 112,
          "offset": 1780,
          "address": "0070:06f4",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 16,
          "file_offset": 132,
          "raw_hex": "82 0a 3c d0",
          "segment": 53308,
          "offset": 2690,
          "address": "d03c:0a82",
          "role": "Video BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 17,
          "file_offset": 136,
          "raw_hex": "4d f8 00 f0",
          "segment": 61440,
          "offset": 63565,
          "address": "f000:f84d",
          "role": "Equipment list",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 18,
          "file_offset": 140,
          "raw_hex": "41 f8 00 f0",
          "segment": 61440,
          "offset": 63553,
          "address": "f000:f841",
          "role": "Conventional memory size",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 19,
          "file_offset": 144,
          "raw_hex": "30 05 af 02",
          "segment": 687,
          "offset": 1328,
          "address": "02af:0530",
          "role": "Disk BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 20,
          "file_offset": 148,
          "raw_hex": "39 e7 00 f0",
          "segment": 61440,
          "offset": 59193,
          "address": "f000:e739",
          "role": "Serial BIOS",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 21,
          "file_offset": 152,
          "raw_hex": "5a 05 af 02",
          "segment": 687,
          "offset": 1370,
          "address": "02af:055a",
          "role": "System BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 22,
          "file_offset": 156,
          "raw_hex": "2e e8 00 f0",
          "segment": 61440,
          "offset": 59438,
          "address": "f000:e82e",
          "role": "Keyboard BIOS",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 23,
          "file_offset": 160,
          "raw_hex": "c4 16 3c d0",
          "segment": 53308,
          "offset": 5828,
          "address": "d03c:16c4",
          "role": "Printer BIOS",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 24,
          "file_offset": 164,
          "raw_hex": "00 e0 00 f0",
          "segment": 61440,
          "offset": 57344,
          "address": "f000:e000",
          "role": "ROM BASIC",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 25,
          "file_offset": 168,
          "raw_hex": "2f 00 c1 05",
          "segment": 1473,
          "offset": 47,
          "address": "05c1:002f",
          "role": "Bootstrap",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 26,
          "file_offset": 172,
          "raw_hex": "6e fe 00 f0",
          "segment": 61440,
          "offset": 65134,
          "address": "f000:fe6e",
          "role": "BIOS clock",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 27,
          "file_offset": 176,
          "raw_hex": "93 0a 3c d0",
          "segment": 53308,
          "offset": 2707,
          "address": "d03c:0a93",
          "role": "Ctrl-Break",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 28,
          "file_offset": 180,
          "raw_hex": "53 ff 00 f0",
          "segment": 61440,
          "offset": 65363,
          "address": "f000:ff53",
          "role": "User timer tick",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 29,
          "file_offset": 184,
          "raw_hex": "a4 f0 00 f0",
          "segment": 61440,
          "offset": 61604,
          "address": "f000:f0a4",
          "role": "Video parameter table",
          "fixed_bios_entry_match": true,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 30,
          "file_offset": 188,
          "raw_hex": "22 05 00 00",
          "segment": 0,
          "offset": 1314,
          "address": "0000:0522",
          "role": "Diskette parameter table",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 31,
          "file_offset": 192,
          "raw_hex": "5c 47 00 c0",
          "segment": 49152,
          "offset": 18268,
          "address": "c000:475c",
          "role": "Graphics character table",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 32,
          "file_offset": 196,
          "raw_hex": "b0 0a 3c d0",
          "segment": 53308,
          "offset": 2736,
          "address": "d03c:0ab0",
          "role": "DOS termination",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 33,
          "file_offset": 200,
          "raw_hex": "b2 0a 3c d0",
          "segment": 53308,
          "offset": 2738,
          "address": "d03c:0ab2",
          "role": "DOS services",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 34,
          "file_offset": 204,
          "raw_hex": "d7 03 c6 05",
          "segment": 1478,
          "offset": 983,
          "address": "05c6:03d7",
          "role": "Process termination address",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 35,
          "file_offset": 208,
          "raw_hex": "21 0b 72 42",
          "segment": 17010,
          "offset": 2849,
          "address": "4272:0b21",
          "role": "DOS Ctrl-Break",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 36,
          "file_offset": 212,
          "raw_hex": "d8 05 48 28",
          "segment": 10312,
          "offset": 1496,
          "address": "2848:05d8",
          "role": "DOS critical error",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 37,
          "file_offset": 216,
          "raw_hex": "a8 10 23 01",
          "segment": 291,
          "offset": 4264,
          "address": "0123:10a8",
          "role": "Absolute disk read",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 38,
          "file_offset": 220,
          "raw_hex": "b2 10 23 01",
          "segment": 291,
          "offset": 4274,
          "address": "0123:10b2",
          "role": "Absolute disk write",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 39,
          "file_offset": 224,
          "raw_hex": "02 0b 3c d0",
          "segment": 53308,
          "offset": 2818,
          "address": "d03c:0b02",
          "role": "Terminate and stay resident",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 40,
          "file_offset": 228,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "DOS idle",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 41,
          "file_offset": 232,
          "raw_hex": "10 05 72 03",
          "segment": 882,
          "offset": 1296,
          "address": "0372:0510",
          "role": "Fast console output",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 42,
          "file_offset": 236,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 43,
          "file_offset": 240,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 44,
          "file_offset": 244,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 45,
          "file_offset": 248,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 46,
          "file_offset": 252,
          "raw_hex": "cb 06 c6 05",
          "segment": 1478,
          "offset": 1739,
          "address": "05c6:06cb",
          "role": "DOS command entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 47,
          "file_offset": 256,
          "raw_hex": "5b 0d 3c d0",
          "segment": 53308,
          "offset": 3419,
          "address": "d03c:0d5b",
          "role": "Multiplex services",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 48,
          "file_offset": 260,
          "raw_hex": "ea d0 10 23",
          "segment": 8976,
          "offset": 53482,
          "address": "2310:d0ea",
          "role": "CP/M compatibility far jump (not a vector)",
          "fixed_bios_entry_match": false,
          "address_interpretation": "inline compatibility code"
        },
        {
          "interrupt": 49,
          "file_offset": 264,
          "raw_hex": "01 ea 00 f0",
          "segment": 61440,
          "offset": 59905,
          "address": "f000:ea01",
          "role": "Overlapped by the CP/M jump; not interpreted as a handler",
          "fixed_bios_entry_match": false,
          "address_interpretation": "inline compatibility code"
        },
        {
          "interrupt": 50,
          "file_offset": 268,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 51,
          "file_offset": 272,
          "raw_hex": "2d 04 7e c9",
          "segment": 51582,
          "offset": 1069,
          "address": "c97e:042d",
          "role": "Mouse driver",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 52,
          "file_offset": 276,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 53,
          "file_offset": 280,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 54,
          "file_offset": 284,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 55,
          "file_offset": 288,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 56,
          "file_offset": 292,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 57,
          "file_offset": 296,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 58,
          "file_offset": 300,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 59,
          "file_offset": 304,
          "raw_hex": "e2 06 5f 44",
          "segment": 17503,
          "offset": 1762,
          "address": "445f:06e2",
          "role": "Possible x87 software-emulation entry",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 60,
          "file_offset": 308,
          "raw_hex": "ad 06 5f 44",
          "segment": 17503,
          "offset": 1709,
          "address": "445f:06ad",
          "role": "Possible x87 emulation prefixes",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 61,
          "file_offset": 312,
          "raw_hex": "da 06 5f 44",
          "segment": 17503,
          "offset": 1754,
          "address": "445f:06da",
          "role": "Possible x87 emulation FWAIT",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 62,
          "file_offset": 316,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        },
        {
          "interrupt": 63,
          "file_offset": 320,
          "raw_hex": "da 10 23 01",
          "segment": 291,
          "offset": 4314,
          "address": "0123:10da",
          "role": "Unassigned or application-specific",
          "fixed_bios_entry_match": false,
          "address_interpretation": "real-mode far address"
        }
      ],
      "fixed_bios_entry_matches": 9,
      "cpm_far_jump": {
        "file_offset": 260,
        "raw_hex": "ea d0 10 23 01",
        "target": "0123:10d0"
      },
      "scope": "Bytes 68\u2013323 reproduce real-mode memory 0000:0000\u20130000:00ff: the first 64 interrupt-vector slots, including fixed BIOS addresses and the overlapping CP/M far jump. The preceding 68 bytes, writer, filename and game use remain unidentified. A saved context or accidental low-memory write is possible; neither is proven."
    }
  ],
  "snapshot_comparison": {
    "identical_reference_ids": [
      "9af21b6b",
      "9d0a9b6b",
      "9f9a9b6b"
    ],
    "other_reference_id": "90221b6b",
    "differing_byte_count": 161,
    "prefix_differences": [
      13
    ],
    "ivt_differing_bytes": 160
  },
  "cross_version_content_matches": [
    {
      "version": "cd_1993_12",
      "reference_id": "4d4a1803",
      "identical_payload_ids": [
        "472e3403"
      ]
    },
    {
      "version": "cd_1993_12",
      "reference_id": "41520003",
      "identical_payload_ids": [
        "4b362c03"
      ]
    },
    {
      "version": "cd_1993_12",
      "reference_id": "49431601",
      "identical_payload_ids": [
        "43273a01"
      ]
    },
    {
      "version": "cd_1993_12",
      "reference_id": "862db179",
      "identical_payload_ids": [
        "83233379"
      ]
    },
    {
      "version": "cd_1993_12",
      "reference_id": "90221b6b",
      "identical_payload_ids": []
    },
    {
      "version": "cd_1993_12",
      "reference_id": "9af21b6b",
      "identical_payload_ids": [
        "9af21b6b",
        "9c021b6b",
        "9d8a9b6b"
      ]
    },
    {
      "version": "cd_1993_12",
      "reference_id": "9d0a9b6b",
      "identical_payload_ids": [
        "9af21b6b",
        "9c021b6b",
        "9d8a9b6b"
      ]
    },
    {
      "version": "cd_1993_12",
      "reference_id": "9f9a9b6b",
      "identical_payload_ids": [
        "9af21b6b",
        "9c021b6b",
        "9d8a9b6b"
      ]
    },
    {
      "version": "cd_1994_03",
      "reference_id": "4d4a1803",
      "identical_payload_ids": [
        "4d4a1803"
      ]
    },
    {
      "version": "cd_1994_03",
      "reference_id": "41520003",
      "identical_payload_ids": [
        "41520003"
      ]
    },
    {
      "version": "cd_1994_03",
      "reference_id": "49431601",
      "identical_payload_ids": [
        "49431601"
      ]
    },
    {
      "version": "cd_1994_03",
      "reference_id": "862db179",
      "identical_payload_ids": [
        "81053179"
      ]
    },
    {
      "version": "cd_1994_03",
      "reference_id": "90221b6b",
      "identical_payload_ids": [
        "9c021b6b"
      ]
    },
    {
      "version": "cd_1994_03",
      "reference_id": "9af21b6b",
      "identical_payload_ids": [
        "98e21b6b",
        "9af21b6b",
        "9f9a9b6b"
      ]
    },
    {
      "version": "cd_1994_03",
      "reference_id": "9d0a9b6b",
      "identical_payload_ids": [
        "98e21b6b",
        "9af21b6b",
        "9f9a9b6b"
      ]
    },
    {
      "version": "cd_1994_03",
      "reference_id": "9f9a9b6b",
      "identical_payload_ids": [
        "98e21b6b",
        "9af21b6b",
        "9f9a9b6b"
      ]
    },
    {
      "version": "cd_1994_09",
      "reference_id": "4d4a1803",
      "identical_payload_ids": [
        "4d4a1803"
      ]
    },
    {
      "version": "cd_1994_09",
      "reference_id": "41520003",
      "identical_payload_ids": [
        "41520003"
      ]
    },
    {
      "version": "cd_1994_09",
      "reference_id": "49431601",
      "identical_payload_ids": [
        "49431601"
      ]
    },
    {
      "version": "cd_1994_09",
      "reference_id": "862db179",
      "identical_payload_ids": [
        "862db179"
      ]
    },
    {
      "version": "cd_1994_09",
      "reference_id": "90221b6b",
      "identical_payload_ids": [
        "90221b6b"
      ]
    },
    {
      "version": "cd_1994_09",
      "reference_id": "9af21b6b",
      "identical_payload_ids": [
        "9af21b6b",
        "9d0a9b6b",
        "9f9a9b6b"
      ]
    },
    {
      "version": "cd_1994_09",
      "reference_id": "9d0a9b6b",
      "identical_payload_ids": [
        "9af21b6b",
        "9d0a9b6b",
        "9f9a9b6b"
      ]
    },
    {
      "version": "cd_1994_09",
      "reference_id": "9f9a9b6b",
      "identical_payload_ids": [
        "9af21b6b",
        "9d0a9b6b",
        "9f9a9b6b"
      ]
    }
  ],
  "references": [
    {
      "title": "Intel CSM Specification 0.98, section 5.2, fixed BIOS entry points",
      "url": "https://www.intel.com/content/dam/www/public/us/en/documents/reference-guides/efi-compatibility-support-module-specification-v098.pdf"
    },
    {
      "title": "DOSBox-X DOS initialisation: five-byte CP/M compatibility jump at 0xC0",
      "url": "https://dosbox-x.com/doxygen/html/dos_8cpp_source.html"
    },
    {
      "title": "GoFast x86 Floating-Point Emulators User\u2019s Guide, Microsoft and Borland interrupt interfaces",
      "url": "https://www.smxrtos.com/doc/ussw/gofast/gofast86.pdf"
    }
  ],
  "scope": "TFX resources only. The Inferno demo is excluded. Confirmed byte relationships are separated from candidate names, inferred rates and authoring/use hypotheses."
}