| 65 | } |
| 66 | |
| 67 | void decodeSectorRecord() override |
| 68 | { |
| 69 | if (readRaw20() != C64_SECTOR_RECORD) |
| 70 | return; |
| 71 | |
| 72 | const auto& bits = readRawBits(5 * 10); |
| 73 | const auto& bytes = decode(bits).slice(0, 5); |
| 74 | |
| 75 | uint8_t checksum = bytes[0]; |
| 76 | _sector->logicalSector = bytes[1]; |
| 77 | _sector->logicalHead = 0; |
| 78 | _sector->logicalCylinder = bytes[2] - 1; |
| 79 | if (checksum == xorBytes(bytes.slice(1, 4))) |
| 80 | _sector->status = |
| 81 | Sector::DATA_MISSING; /* unintuitive but correct */ |
| 82 | } |
| 83 | |
| 84 | void decodeDataRecord() override |
| 85 | { |