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aligned attribute in XC compiler

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I have seen this code

#define PM_ROW __attribute__((space(prog), aligned(128)))
const PM_ROW MyRowData1InFlash[] =
{ 0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,
0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,
0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,
0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,
0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,
0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,
0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,
0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111,0x1111
};
const PM_ROW MyRowData2InFlash[] =
{ 0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,
0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,
0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,
0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,
0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,
0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,
0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,
0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222,0x2222
};

If i do not give align(128) will the compiler not put in multiples of 128 addresses. When it is mandatory that i give this align parameter? Please advise.
 

Pommie

Well-Known Member
Most Helpful Member
If you omit the align attribute the compiler will put it wherever it likes. It's only mandatory when you need it aligned.

Mike.
 
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