已知ARM机器处于模式: R0=0x01,R1=0x02,R2=0x03,R3=0x04,R4=0x05,R5=0x06,R6=0x07,R7=0x08; [0x30000000]=0x11,[0x30000001]=0x22,[0x30000002]=0x33,[0x30000003]=0x44, [0x30000004]=0x55,[0x30000005]=0x66,[0x30000006]=0x77,[0x30000007]=0x88; 执行下列指令之后, MOV R1,#0x3000000 LDRB R0,[R1],#4 R0= ? R1= ?