crc -- 32-bit Cyclic Redundancy Check

Module description

crc -- 32-bit Cyclic Redundancy Check: The crc module implements a 32-bit cyclic redundancy check calculation.

CRC-32 Structure

crc% ( -- n ): Get the required space for a crc-32 variable

CRC-32 variable creation, initialisation and destruction

crc-init ( crc -- ): Initialise the crc

crc-create ( "<spaces>name" -- ; -- crc ): Create a named crc variable in the dictionary

crc-(free) ( crc -- ): Free the internal table from the heap

crc-new ( -- crc ): Create a new crc variable on the heap

crc-free ( crc -- ): Free the crc from the heap

Member words

crc-poly! ( u crc -- ): Use the polynomial u for the crc

crc-poly@ ( crc -- u ): Get the polynomial u in the crc

CRC-32 words

crc-reset ( crc -- ): Reset the crc calculation

crc-update ( c-addr u crc -- ): Update the crc structure with more byte data

crc-finish ( crc -- u ): Finish the calculation, return the CRC32 result

Module words

crc+calc-poly ( u1 .. un n -- u ): Calculate the polynomial u

crc+calc-crc32 ( c-addr u -- u1 ): Calculate the CRC32 for byte data with default crc32 table

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