105 lines
2.1 KiB
C
Executable File
105 lines
2.1 KiB
C
Executable File
#ifndef _INCLUDE_PLATFORM_H_
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#define _INCLUDE_PLATFORM_H_
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#if (defined PLATFORM_WIN32)
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#include "win32_compat.h"
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#elif (defined PLATFORM_MACOSX)
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#include "unix_compat.h"
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#include <machine/endian.h>
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#elif (defined PLATFORM_FREEBSD)
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#include "unix_compat.h"
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#include <sys/endian.h>
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#elif (defined PLATFORM_UNIX)
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#include "unix_compat.h"
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#if !defined(__SUNPRO_C)
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#include <endian.h>
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#endif
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#elif (defined PLATFORM_DOS)
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#include "doscmpat.h"
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#else
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#error Define your platform!
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#endif
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#ifdef PLATFORM_MACOSX
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/* may be an x86 Mac, so turn off PowerPC ASM and Altivec if needed... */
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#if __POWERPC__
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#define HAVE_POWERPC 1
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#endif
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#endif
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#ifdef PLATFORM_LINUXPPC
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#define HAVE_POWERPC 1
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#endif
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#if (!defined __EXPORT__)
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#define __EXPORT__
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#endif
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#if ((defined PLATFORM_SUPPORTS_SDL) && (!defined PLATFORM_TIMER_HZ))
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#define PLATFORM_TIMER_HZ 100
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#endif
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#if (!defined PLATFORM_TIMER_HZ)
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#error You need to define PLATFORM_TIMER_HZ for your platform.
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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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#if (defined __SUNPRO_C)
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#define __inline inline
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#endif
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static __inline unsigned short _swap16(unsigned short D)
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{
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#if HAVE_POWERPC
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register unsigned short 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 unsigned int _swap32(unsigned int D)
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{
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#if HAVE_POWERPC
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register unsigned int 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 HAVE_POWERPC
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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 int 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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