ARM 指令 LDMIAR0,{R1,R2,R3,R4} 实现的功能是( )
A.
R1 ← [R0] , R2 ← [R0+4] , R3 ← [R0+8] , R4 ← [R0+12]
B.
R1 ← [R0] , R2 ← [R0-1] , R3 ← [R0-2] , R4 ← [R0-3]
C.
R1 ← [R0] , R2 ← [R0+1] , R3 ← [R0+2] , R4 ← [R0+3]
D.
R1 ← [R0] , R2 ← [R0-4] , R3 ← [R0-8] , R4 ← [R0-12]