1 /* Copyright (c) 2013 Corinna Vinschen <corinna@vinschen.de> */ 2 #ifndef _MB_ENDIAN_H 3 #define _MB_ENDIAN_H 4 5 /* Convenience macros for loading and store 4 bytes in a byte invariant way with 6 * a singe instruction. Endianess affects this and we rely on MicroBlaze 7 * load/store reverse instructions to do the trick on little-endian systems. 8 */ 9 #ifdef __LITTLE_ENDIAN__ 10 #define LOAD4BYTES(rD,rA,rB) "\tlwr\t" rD ", " rA ", " rB "\n" 11 #define STORE4BYTES(rD,rA,rB) "\tswr\t" rD ", " rA ", " rB "\n" 12 #else 13 #define LOAD4BYTES(rD,rA,rB) "\tlw\t" rD ", " rA ", " rB "\n" 14 #define STORE4BYTES(rD,rA,rB) "\tsw\t" rD ", " rA ", " rB "\n" 15 #endif 16 #endif 17
