Source to src/include/native2amiga.h

 /*
  * UAE - The Un*x Amiga Emulator
  *
  * Call (some) Amiga Exec functions outside the main UAE thread
  * and without stack magic.
  *
  * Copyright 1999 Patrick Ohly
  *
  * Uses the EXTER interrupt that is setup in filesys.c
  * and some of it needs thread support.
  */

/*
 * The following functions do exactly the same thing as their
 * Amiga counterpart, but can be called in situation where calling
 * the exec.library functions is impossible.
 */
#ifdef SUPPORT_THREADS
extern void uae_ReplyMsg (uaecptr msg);
extern void uae_PutMsg (uaecptr port, uaecptr msg);
extern void uae_Signal (uaecptr task, uae_u32 mask);
#endif
extern void uae_NewList (uaecptr list);

/*
 * The following functions are shortcuts for calling
 * the exec.library function with CallLib (), so they
 * are only available in a trap function. This trap
 * function has to be setup with deftrap2() and
 * TRAPFLAG_EXTRA_STACK and stack magic is required.
 */
extern uaecptr uae_AllocMem (TrapContext *, uae_u32 size, uae_u32 flags);
extern void uae_FreeMem (TrapContext *ctx, uaecptr memory, uae_u32 size);


/*
 * to be called when setting up the hardware
 */
extern void native2amiga_install (void);

/*
 * to be called when the Amiga boots, i.e. by filesys_diagentry()
 */
extern void native2amiga_startup (void);

/**** internal stuff ****/
#ifdef SUPPORT_THREADS
/* This pipe is filled by Signal() with pairs of
 * (uae_u32)0/(uaecptr)task/(uae_u32)signal_set,
 * by PutMsg() with (uae_u32)1/(uaecptr)port/(uaecptr)msg and by
 * ReplyMsg() with (uae_u32)2/(uaecptr)msg.
 * It's emptied via exter_int_helper by the EXTER interrupt. */
extern smp_comm_pipe native2amiga_pending;
#endif

STATIC_INLINE void do_uae_int_requested (void)
{
	uae_int_requested = 1;
	set_uae_int_flag ();
	INTREQ (0x8000 | 0x0008);
}