不能用ldr
./cpu/s3c64xx/start.S
//reg0x7f008800=0x11112222
mov r0,#0x7f000000
orr r0,r0,#0x00008800
mov r1,#0x11000000
orr r1,r1,#0x00110000
orr r1,r1,#0x00002200
orr r1,r1,#0x00000022
str r1,[r0]
nop
nop
nop
//reg0x7f008800=0xa0
mov r0,#0x7f000000
orr r0,r0,#0x00008800
orr r0,r0,#0x00000008
mov r1,#0xa0
str r1,[r0]
nop
nop
nop