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中国DOS联盟论坛 » DOS开发编程 & 发展交流 （开发室） » Experts, take a look: about the negative checksum in the EXE file format View 694　Replies 2
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Original Poster Posted 2003-12-21 00:00　·　 中国 云南 红河哈尼族彝族自治州 联通
sysnet
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I want to handcraft a few DOS EXE files. I've studied them for many days, but I still can't figure out the negative checksum in the EXE header format. How is it calculated?
Sigh, I've looked up some materials too and still couldn't find it. Frustrating.
Floor 2 Posted 2003-12-24 00:00　·　 中国 云南 红河哈尼族彝族自治州 联通
sysnet
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Sheesh, nobody answered?
Floor 3 Posted 2003-12-24 00:00　·　 中国 天津 教育网
aria
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Is the negative checksum just the checksum with the bits inverted?
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