Commodore 64: Microload loader

@DrWatson

Published in 

C64 tape formats

 · 3 years ago

Can be found on...

• Big Ben
• Break Fever
• Chameleon
• Crystals of Carus
• Dandy
• Fungus
• Mission Elevator
• Pitstop
• Uchi Mata
• ...

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Threshold : $014D (333) clock cycles (TAP byte = $29).
Bit 0 : $1C
Bit 1 : $36
Endianess : LSbF
Pilot : $A0 (*255)
Sync : $0A down to $01

Then...

2 bytes : Start address (LSBF)
2 bytes : Data size (LSBF). to get real size do.. (size XOR $FFFF)+1
n bytes : Data
1 byte : Checksum (0 XOR all data bytes)