汇编代码和Makefile文件的编写

.text

.global _start

_start:

mov r1,#1

mov r2,#2

mov r3,#3

-------------------------------------------------

all:start.o

arm-linux-ld -Ttext 0x30000000 -o start.elf $^

%.o:%.S

arm-linux-gcc -g -o $@ $^ -c

clean:

rm *.o *.elf