摘要： ARM中的程序状态寄存器（CPSR）31 30 29 28 27 26 7 6 5 4 3 2 1 0N Z C V Q DNM(RAZ) I F T M4 M3 M2 M1 M0| | | |____ Overflow : (Signed) Overflow/Underflow : The V flag works the same as the C flag, but for signed operations.| | | the result of which will not fit into a 32bit desti... 阅读全文