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你好，
请问这条指令在什么条件下，NF = 1,ZF = 1，
又在什么条件下NF = 0. ZF = 0?
您可以看一下 下面文档的 Table 14. CLA Status (MSTF) Register Field Descriptions
5504.2803x CLA (1).pdf
比较建议您使用MSETFLG ，__msetflg(unsigned short, unsigned short)
__msetflg(unsigned
short
, unsigned
)
第一个参数是一个位掩码，指示哪些位被修改。第二个参数表示分配了什么值。
