NZCV

N: negative 算术逻辑运算单元运算结果为负1/正0
Z: zero     算术逻辑运算单元运算结果为零1/非零0
C: 3cases:1             0加法      Carray      | Not Carray减法      Not Borrow  |   Borrow(Not Carray)移位      Bit Shifted |  Rotated Out
V: 后面详细阐述

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示例程序

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示例程序