main3.s

这是学习arm汇编的一个非常好的源码

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;// Copyright (c) 2002, Andrew N. Sloss, Dominic Symes, Chris Wright
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        AREA    |.text|, CODE, READONLY
                
        EXPORT  main
        
        IMPORT  |Lib$$Request$$armlib|, WEAK
        IMPORT  __main      ; C library entry
        IMPORT  printf      ; prints to stdout
        
i       RN 4
        
        ; int main(void)
main
        STMFD   sp!, {i, lr}
        MOV     i, #0
loop
        ADR     r0, print_string
        MOV     r1, i
        MUL     r2, i, i
        BL      printf
        ADD     i, i, #1
        CMP     i, #10
        BLT     loop
        LDMFD   sp!, {i, pc}
        
print_string
        DCB     "Square of %d is %d\n", 0
        
        END