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Commodore 64: Rasterload loader
This recent (1990) format seems to be mostly used by cover-tape freebies, especially from ' Commodore Format ' magazine
it can be found on...
- Game Over
- Grod the Pixie
- Luna Landa
- Overload
- Vioris
- Super Strike
- + basically ALL CF magazine cover-tape games.
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Threshold : $200 (512) clock cycles (TAP byte = $40).
Bit 0 : $26
Bit 1 : $58
Endianess : MSbF
Pilot byte : $80 (usually *32)
Sync : $FF
after sync byte is...
2 bytes : Start address (LSBF)
2 bytes : End address (LSBF)
n bytes : Data
1 byte : Checksum (0 XOR all data bytes)
1 byte : Always $FF
Notes :
Sometimes the final $FF can be broken and contain fewer than 8 pulses, scanners should assume a trailer of Bit 1's and simply scan through them rather than assume there will be a whole byte containing 8.
