compiler/include/rexx/rexxcall-m68k.h

   1 /*
   2     Copyright © 1995-2011, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Macro's to make calling arexx library querying functions portable
   6     Lang: English
   7 */
   8
   9 #ifndef AROS_REXXCALL_M68K_H
  10 #define AROS_REXXCALL_M68K_H
  11
  12 /* Some macro's to make ARexx portable to non-m68k platforms */
  13 #define RexxCallQueryLibFunc(rexxmsg, libbase, offset, retargstringptr) \
  14   ({ \
  15     int _offset=abs(offset)/6; \
  16     AROS_LVO_CALL2(ULONG, \
  17                AROS_LCA(struct RexxMsg *, rexxmsg, A0), \
  18                AROS_LCA(STRPTR *, retargstringptr, A1), \
  19                struct Library *, libbase, _offset, rexxcall); \
  20   })
  21
  22 /* ARexx Query Functions return their arguments in BOTH
  23  * A0 and D0.
  24  */
  25 #define AROS_AREXXLIBQUERYFUNC(f,m,lt,l,o,p) \
  26   AROS_UFP3(ULONG, p##_##f##_wrapper, \
  27              AROS_UFPA(struct RexxMsg *, m, A0), \
  28              AROS_UFPA(STRPTR *, _retargstringptr, A1), \
  29              AROS_UFHA(lt, l, A6)); \
  30   asm ( ".text\n" \
  31         ".global " #p "_" #o "_" #f "\n" \
  32         #p "_" #o "_" #f ":\n" \
  33         "jsr " #p "_" #f "_wrapper \n" \
  34         "move.l %d0,%a0 \n" \
  35         "rts\n" ); \
  36   AROS_UFH3(ULONG, p##_##f##_wrapper, \
  37              AROS_UFHA(struct RexxMsg *, m, A0), \
  38              AROS_UFHA(STRPTR *, _retargstringptr, A1), \
  39              AROS_UFHA(lt, l, A6)) { AROS_USERFUNC_INIT
  40 #define AROS_AREXXLIBQUERYFUNC_END \
  41     AROS_USERFUNC_EXIT }
  42
  43 #define ReturnRexxQuery(rc,arg) \
  44   *_retargstringptr = arg; \
  45   return rc;
  46
  47 #endif