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16 lines
581 B
C
16 lines
581 B
C
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#ifndef _MB_ENDIAN_H
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#define _MB_ENDIAN_H
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/* Convenience macros for loading and store 4 bytes in a byte invariant way with
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* a singe instruction. Endianess affects this and we rely on MicroBlaze
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* load/store reverse instructions to do the trick on little-endian systems.
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*/
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#ifdef __LITTLE_ENDIAN__
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#define LOAD4BYTES(rD,rA,rB) "\tlwr\t" rD ", " rA ", " rB "\n"
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#define STORE4BYTES(rD,rA,rB) "\tswr\t" rD ", " rA ", " rB "\n"
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#else
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#define LOAD4BYTES(rD,rA,rB) "\tlw\t" rD ", " rA ", " rB "\n"
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#define STORE4BYTES(rD,rA,rB) "\tsw\t" rD ", " rA ", " rB "\n"
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#endif
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#endif
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