Changes
| 15 || WORD ||Load address ||
|-
| 16 17 || BYTE || First block || Set to #FF, only used for output files
|-
| 17 18 || WORD ||style="white-space: nowrap;"| Logical length || Actual file length is here
|-
| 19 1A || WORD || Entry address ||
|-
| 1B 1C || 36 BYTES || Unused ||
|-
| 3F 40 || 3 BYTES || Real length || 24-bit number. Just a copy, not used!
|-
| 42 43 || WORD || Checksum || Unsigned sum of all bytes until this field
|-
| 44 45 || 59 BYTES || Unused || Free to use
|}
