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One of the first libraries I wrote for BlitzPlus. It has functionality for extracting files, as well as packing and unpacking banks.

Here’s some example code:

Const TEST_STRING$ = "Repetition is good for compression."

; Create a bank to be compressed
Local testBank = CreateBank((Len(TEST_STRING) * 2) + 1)

; Store our test string
PokeString(testBank, 0, TEST_STRING + TEST_STRING)

; Compress the data
Local compressedBank = ZipApi_Compress(testBank)

; Output statistics
Print "Old Size: " + BankSize(testBank)
Print "New Size: " + BankSize(compressedBank)

I don’t use BlitzPlus now, but I enjoyed building it.