Just as the title says. I tried to strike a balance between code size and performance, which resulted in around 2KB of code and around 1750 bytes/s when hashing on a Commodore 64.
You will need cc65 (https://github.com/cc65/cc65) to build.
In order to calculate MD5 hash of a message:
- Call
_md5_init. - Call
_md5_next_blockfor every 64-byte block of the message, passing a pointer to beginning of the block in A/X (lo/hi) and size of the block in Y. Only the final's block size can be smaller than 64 bytes! - Call
_md5_finalize. - Find computed MD5 hash in 16 bytes starting at
_md5_hash.
See tests.s for examples.
Currently messages of up to 2MiB are supported. This should not be a problem, but if the need arises, the limit can be increased easily.
Sure. Run make test. If it fa
5D2F
ils, you optimized too much.
Yes. make md5.prg and have fun benchmarking.
Milek Smyk (firstlast on gmail)