arch/m68k-all/exec/copymem.c

   1 /*
   2     Copyright © 1995-2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: CopyMem()
   6     Lang: english
   7 */
   8
   9 #include <exec/types.h>
  10 #include <exec/execbase.h>
  11 #include <proto/exec.h>
  12 #include <aros/libcall.h>
  13
  14 extern void AROS_SLIB_ENTRY(CopyMem_000,Exec,104)(void);
  15 extern void AROS_SLIB_ENTRY(CopyMem_020,Exec,104)(void);
  16
  17 /* See rom/kernel/copymem.c for documentation */
  18
  19 AROS_LH3I(void, CopyMem,
  20     AROS_LHA(CONST_APTR,  source, A0),
  21     AROS_LHA(APTR,  dest,   A1),
  22     AROS_LHA(IPTR,  size,   D0),
  23     struct ExecBase *, SysBase, 104, Exec)
  24 {
  25     AROS_LIBFUNC_INIT
  26     void (*func)(void);
  27
  28     Disable();
  29     if (SysBase->AttnFlags & AFF_68020) {
  30         /* 68020+ */
  31         func = AROS_SLIB_ENTRY(CopyMem_020, Exec, 104);
  32     } else {
  33         /* 68000/68010 */
  34         func = AROS_SLIB_ENTRY(CopyMem_000, Exec, 104);
  35     }
  36     SetFunction((struct Library *)SysBase, -LIB_VECTSIZE * 104, func);
  37     Enable();
  38
  39     return CopyMem(source, dest, size);
  40
  41     AROS_LIBFUNC_EXIT
  42 } /* CopyMem */