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As is Known to us,the function Main is the entry point of all programs.Therefore, we are usually neglecting all that we don't do,which makes us not understanding it more clearly.Now there is a sample arm program which will provide something that opration system usually do.
asm:
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struct var_data
{
int len;
char data[0];
};
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for(i = 0; i < s.len; i++)
{
printf("%02x",s.data[i]);
}
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