Last change
on this file since 444 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
581 bytes
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Line | |
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1 | #ifndef _MB_ENDIAN_H |
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2 | #define _MB_ENDIAN_H |
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3 | |
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4 | /* Convenience macros for loading and store 4 bytes in a byte invariant way with |
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5 | * a singe instruction. Endianess affects this and we rely on MicroBlaze |
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6 | * load/store reverse instructions to do the trick on little-endian systems. |
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7 | */ |
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8 | #ifdef __LITTLE_ENDIAN__ |
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9 | #define LOAD4BYTES(rD,rA,rB) "\tlwr\t" rD ", " rA ", " rB "\n" |
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10 | #define STORE4BYTES(rD,rA,rB) "\tswr\t" rD ", " rA ", " rB "\n" |
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11 | #else |
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12 | #define LOAD4BYTES(rD,rA,rB) "\tlw\t" rD ", " rA ", " rB "\n" |
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13 | #define STORE4BYTES(rD,rA,rB) "\tsw\t" rD ", " rA ", " rB "\n" |
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14 | #endif |
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15 | #endif |
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