/* $Id: os2sel.h,v 1.9 2001-10-10 21:22:13 phaller Exp $ */
/*
 *
 * Project Odin Software License can be found in LICENSE.TXT
 *
 */
#ifndef __OS2SEL_H__
#define __OS2SEL_H__


#ifdef __cplusplus
extern "C" {
#endif


#ifdef __WATCOMC__
unsigned short GetFS(void);
#pragma aux GetFS = \
   "mov  ax,fs" \
   value [ax] \
   parm nomemory;

void SetFS(unsigned short sel);
#pragma aux SetFS = \
   "mov  fs,ax" \
   parm [ax];

unsigned short RestoreOS2FS(void);
#pragma aux RestoreOS2FS = \
   "mov  bx, fs" \
   "mov  ax, 150bh" \
   "mov  fs, ax" \
   value [bx] \
   modify nomemory exact [ax];

#else

unsigned short _System GetFS       (void);
unsigned short _System RestoreOS2FS(void);
void           _System SetFS       (unsigned short selector);
unsigned short _System SetReturnFS (unsigned short selector);
#endif

//SvL: Checks if thread FS & exception structure are valid
int            _System CheckCurFS(void);
  
  
#ifdef __cplusplus
}
#endif


#endif //__OS2SEL_H__