Subject: Re: [stella] goodtools? From: "tim lindner" <tlindner@xxxxxxxxxxxxx> Date: Fri, 30 Aug 2002 06:15:35 -0700 |
>> > Does anyone know the algorithm good tools uses to recognize roms? I >> > assume that it is some sort of check sum. Is it a hash, or something as >> > simple as adding all the bytes of a binary togather? >> >> It stores a CRC for each ROM and compares it to a calculated CRC. >> It calculates the CRC the exact same way ZIP does. The code should be in >> the ever popular zlib library. >> > Thanks. Does it yield exactly the same values as the gnu implimentation? I think so. But I am not sure. > Is this sort of thing consistant, or does it change per implementation? Implementation of zlib, or implementation of GoodTools? I think all of the zip librarys produce the same value, that would be how they remain compatiable. I also think GoodTools has always used the same algorithm. -- tim lindner tlindner@xxxxxxxxxxxxx "Life. Don't talk to me about life." - Marvin, the android ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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