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61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
#ifndef _INCLUDE_PLATFORM_H_
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#define _INCLUDE_PLATFORM_H_
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#if (!defined __EXPORT__)
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#define __EXPORT__
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#endif
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#if (defined __WATCOMC__)
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#define snprintf _snprintf
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#endif
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static __inline uint16_t _swap16(uint16_t D)
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{
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#if PLATFORM_MACOSX
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register uint16_t returnValue;
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__asm__ volatile("lhbrx %0,0,%1"
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: "=r" (returnValue)
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: "r" (&D)
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);
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return returnValue;
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#else
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return((D<<8)|(D>>8));
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#endif
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}
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static __inline uint32_t _swap32(uint32_t D)
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{
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#if PLATFORM_MACOSX
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register uint32_t returnValue;
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__asm__ volatile("lwbrx %0,0,%1"
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: "=r" (returnValue)
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: "r" (&D)
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);
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return returnValue;
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#else
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return((D<<24)|((D<<8)&0x00FF0000)|((D>>8)&0x0000FF00)|(D>>24));
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#endif
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}
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#if PLATFORM_MACOSX
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#define PLATFORM_BIGENDIAN 1
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#define BUILDSWAP_INTEL16(x) _swap16(x)
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#define BUILDSWAP_INTEL32(x) _swap32(x)
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#else
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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#define PLATFORM_LITTLEENDIAN 1
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#define BUILDSWAP_INTEL16(x) (x)
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#define BUILDSWAP_INTEL32(x) (x)
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#else
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#define PLATFORM_BIGENDIAN 1
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#define BUILDSWAP_INTEL16(x) _swap16(x)
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#define BUILDSWAP_INTEL32(x) _swap32(x)
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#endif
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#endif
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extern int32_t has_altivec; /* PowerPC-specific. */
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#endif /* !defined _INCLUDE_PLATFORM_H_ */
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/* end of platform.h ... */
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