include/selectors.h

   1 /*
   2  * Selector definitions
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  */
   6
   7 #ifndef __WINE_SELECTORS_H
   8 #define __WINE_SELECTORS_H
   9
  10 #include "wintypes.h"
  11 #include "ldt.h"
  12
  13 extern WORD SELECTOR_AllocBlock( const void *base, DWORD size,
  14                                  enum seg_type type, BOOL32 is32bit,
  15                                  BOOL32 readonly );
  16 extern WORD SELECTOR_ReallocBlock( WORD sel, const void *base, DWORD size,
  17                                    enum seg_type type, BOOL32 is32bit,
  18                                    BOOL32 readonly );
  19 extern void SELECTOR_MoveBlock( WORD sel, const void *new_base );
  20 extern void SELECTOR_FreeBlock( WORD sel, WORD count );
  21
  22 #ifdef __i386__
  23 # define __GET_SEG(seg,res) __asm__( "movw %%" seg ",%w0" : "=r" (res) )
  24 # define __SET_SEG(seg,val) __asm__( "movw %w0,%%" seg : : "r" (val) )
  25 #else  /* __i386__ */
  26 # define __GET_SEG(seg,res) ((res) = 0)
  27 # define __SET_SEG(seg,val) /* nothing */
  28 #endif  /* __i386__ */
  29
  30 #define GET_CS(cs) __GET_SEG("cs",cs)
  31 #define GET_DS(ds) __GET_SEG("ds",ds)
  32 #define GET_ES(es) __GET_SEG("es",es)
  33 #define GET_FS(fs) __GET_SEG("fs",fs)
  34 #define GET_GS(gs) __GET_SEG("gs",gs)
  35 #define GET_SS(ss) __GET_SEG("ss",ss)
  36
  37 #define SET_CS(cs) __SET_SEG("cs",cs)
  38 #define SET_DS(ds) __SET_SEG("ds",ds)
  39 #define SET_ES(es) __SET_SEG("es",es)
  40 #define SET_FS(fs) __SET_SEG("fs",fs)
  41 #define SET_GS(gs) __SET_SEG("gs",gs)
  42 #define SET_SS(ss) __SET_SEG("ss",ss)
  43
  44 #endif /* __WINE_SELECTORS_H */