请问这一小段ARM汇编代码哪里有问题啊？传入存储器的值不对

Question

   AREA SHIYAN01,CODE,READONLY
 ENTRY
 CODE32

START LDR R0,=0x40000000
MOV R1,#0x100
STR R1,[R0]
ADD R1,R1,#0x4
LDR R1,[R0,#0x4]
ADD R1,R1,#0x4
STR R1,[R0,#0x4];
ADD R1,R1,#0x4
STR R1,[R0,#0x4]
LDMIA R0!,{R2-R4}

 END

Answer 1

寄存器的读取有问题