wine/include/selectors.h
2000-02-27 16:39:48 +00:00

46 lines
1.4 KiB
C

/*
* Selector definitions
*
* Copyright 1995 Alexandre Julliard
*/
#ifndef __WINE_SELECTORS_H
#define __WINE_SELECTORS_H
#include "windef.h"
#include "ldt.h"
extern WORD SELECTOR_AllocBlock( const void *base, DWORD size,
enum seg_type type, BOOL is32bit,
BOOL readonly );
extern WORD SELECTOR_ReallocBlock( WORD sel, const void *base, DWORD size );
extern void SELECTOR_MoveBlock( WORD sel, const void *new_base );
extern void SELECTOR_FreeBlock( WORD sel, WORD count );
#ifdef __i386__
# ifdef __GNUC__
# define __DEFINE_GET_SEG(seg) \
extern inline unsigned short __get_##seg(void) \
{ unsigned short res; __asm__("movw %%" #seg ",%w0" : "=r"(res)); return res; }
# define __DEFINE_SET_SEG(seg) \
extern inline void __set_##seg(int val) { __asm__("movw %w0,%%" #seg : : "r" (val)); }
# else /* __GNUC__ */
# define __DEFINE_GET_SEG(seg) extern unsigned short __get_##seg(void);
# define __DEFINE_SET_SEG(seg) extern void __set_##seg(unsigned int);
# endif /* __GNUC__ */
#else /* __i386__ */
# define __DEFINE_GET_SEG(seg) static inline unsigned short __get_##seg(void) { return 0; }
# define __DEFINE_SET_SEG(seg) /* nothing */
#endif /* __i386__ */
__DEFINE_GET_SEG(cs)
__DEFINE_GET_SEG(ds)
__DEFINE_GET_SEG(es)
__DEFINE_GET_SEG(fs)
__DEFINE_GET_SEG(gs)
__DEFINE_GET_SEG(ss)
__DEFINE_SET_SEG(fs)
__DEFINE_SET_SEG(gs)
#endif /* __WINE_SELECTORS_H */