square2.s

这是学习arm汇编的一个非常好的源码

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        AREA    |.text|, CODE, READONLY
        
        EXPORT  square
        
        ; int square(int i)
square
        MUL     r1, r0, r0      ; r1 = r0 * r0
        MOV     r0, r1          ; r0 = r1
        BX      lr              ; return r0
        
        END