2014年2月25日
「操作系统」：The most useful condition codes
摘要： CF: Carry Flag.The most recent operation generated a carry out of the most significant bit. Used to detect overflow for unsigned operations.ZF: Zero Flag. The most recent operation yielded zero.SF: Sign Flag. The most recent operation yielded a negative value.OF: Over Flag. The most recent operation 阅读全文
posted @ 2014-02-25 13:39 sangoly 阅读(174) 评论(0) 推荐(0)