ARM汇编的字符串寻址方式

xiaoxiao2025-05-21 37

F31EF494 LDR R3, =(a_so - 0xF31EF4A0) //R3=0x00002B78 F31EF498 ADD R3, PC, R3 ; " \x03\x01" //计算前 R3=0x00002B78 PC=0xF31EF498 结果R3=0xF31F2018,可见参与计算的实际PC的取值是0xF31EF4A0 F31EF49C LDR R3, [R3] ; " \x03\x01" F31EF4A0 CMP R3, #0 F31EF4A4 BNE loc_F31EF

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