# Show this main Functions are programmed
EXPORT main
#main Is the name of the function IDA Pro It can automatically identify all functions and names in the source program
main
#IDA Stack variables identified
var_C = -0xC

var_8 = -8
# Stack addressing instruction Push the value of a register onto the stack
STMFD SP1,{R11,LR}
#SP The value of the register plus 4 Bestow R11 register
ADD   R11,SP,#4
#SP The value of the register is subtracted 8 Bestow SP register
SUB      SP ,SP,#8
# Write register instruction hold R0 The value in the register is saved to the stack variable var_8 in
STR      R0, {R11,#var_8}
# Write register instruction hold R1 The value in the register is saved to the stack variable var_C in
STR      R1, {R11,#var_C}
# Read register instruction hold (aHelloArm-0x8300) The calculated address is put into the R3 Register
LDR      R3, =(aHelloArm-0x8300)
#PC Register value plus R3 The value of the register Put into R3 register
ADD      R3, PC,R3  
# hold R3 The value of the register is placed in the R0 Register
MOV   R0, R3  
# Similar to calling function function function   puts In the standard input-output function printf Implementation of
BL    puts
# hold 0 Assign to R3 register
MOV      R3, #0
# hold R3 The value in the register is assigned to the R0 register
MOV      R0, R3
#R11 The value of the register is subtracted 4 Bestow SP register
SUB   SP, R11,#4  
# Stack addressing instruction Recover the value of a register from the stack
LDMFD SP!{R11,PC}

#include<stdio.h>

int main(int argc, char * argv[]){

   printf("Hello Arm !\n");

   return 0;

}

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