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Go 系列文章6: syscall #74

Open cch123 opened 6 years ago

cch123 commented 6 years ago

http://xargin.com/syscall/

contestjia commented 4 years ago

大佬，请问，这个“CMPQ AX, $0xfffffffffffff001，是 linux MAX_ERRNO 取反 转无符号"， MAX_ERRNO应该是4095，这个是怎么取反转过去的了？

cch123 commented 4 years ago

@contestjia ，https://bbs.csdn.net/topics/390903726

contestjia commented 4 years ago

@

@cch123 @contestjia ，https://bbs.csdn.net/topics/390903726

多谢，明白了，就是-MAX_ERRNO，误以为是^MAX_ERRNO，按位取反