arch/arm-raspidzy/exec/userstate.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: UserState() - Return to normal mode after changing things.
   6     Lang: english
   7 */
   8
   9 /*****************************************************************************
  10
  11     NAME */
  12 #include <proto/exec.h>
  13
  14         AROS_LH1(void, UserState,
  15
  16 /*  SYNOPSIS */
  17         AROS_LHA(APTR, sysStack, D0),
  18
  19 /*  LOCATION */
  20         struct ExecBase *, SysBase, 26, Exec)
  21
  22 /*  FUNCTION
  23         Return to user mode after a call to SuperState().
  24
  25     INPUTS
  26         sysStack    -   The return value from SuperState()
  27
  28     RESULT
  29         The system will be back to normal.
  30
  31     NOTES
  32
  33     EXAMPLE
  34
  35     BUGS
  36
  37     SEE ALSO
  38         SuperState(), Supervisor()
  39
  40     INTERNALS
  41         Undo SuperState()
  42
  43 ******************************************************************************/
  44 {
  45     AROS_LIBFUNC_INIT
  46
  47     asm("cps #0x1f\n"); /* switch to system mode */
  48
  49     sysStack = 0;   /* Get rid of the compiler warning */
  50
  51     AROS_LIBFUNC_EXIT
  52 } /* UserState() */