单项选择题
A.R5不变B.R5=R5+2C.R5=R2+2D.R5=2
A.左移 B.右移 C.循环左移 D.循环右移
A.0x33303132 B.0x32303133 C.0x32303331 D.0x33313032
A.PSP B.MSP C.CPSR D.SPSR
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