Diff for /gforth/lib.fs between versions 1.2 and 1.9

version 1.2, 1997/12/14 01:15:19 version 1.9, 2003/08/25 14:17:45
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 \ lib.fs        shared library support package          11may97py  \ lib.fs        shared library support package          11may97py
   
 \ Copyright (C) 1995-1997 Free Software Foundation, Inc.  \ Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
Line 16 Line 16
   
 \ You should have received a copy of the GNU General Public License  \ You should have received a copy of the GNU General Public License
 \ along with this program; if not, write to the Free Software  \ along with this program; if not, write to the Free Software
 \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   
 Create icall-table  [IFDEF] av-call-int
     ] icall0 ;s icall1 ;s icall2 ;s icall3 ;s icall4 ;s icall5 ;s icall6 ;s      include fflib.fs
       NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  [ELSE]
       NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  icall20 ;s [      include oldlib.fs
 Create fcall-table  [THEN]
     ] fcall0 ;s fcall1 ;s fcall2 ;s fcall3 ;s fcall4 ;s fcall5 ;s fcall6 ;s  
       NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  
       NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  NIL swap  fcall20 ;s [  
   
 Variable libs 0 libs !  
 \G links between libraries  
   
 : @lib ( lib -- )  
     \G obtains library handle  
     cell+ dup 2 cells + count open-lib  
     dup 0= abort" Library not found" swap ! ;  
   
 : @proc ( lib addr -- )  
     \G obtains symbol address  
     cell+ tuck 2 cells + count rot cell+ @  
     lib-sym  dup 0= abort" Proc not found!" swap cell+ ! ;  
   
 : proc, ( pars type lib addr -- )  
     \G allocates and initializes proc stub  
     \G stub format:  
     \G    linked list in library  
     \G    address of proc  
     \G    offset in lcall1-table to call proc  
     \G    OS name of symbol as counted string  
     here 2dup swap 2 cells + dup @ A, !  
     2swap  1 and  IF  fcall-table  ELSE  icall-table  THEN  swap  
     cells 2* + , 0 , bl parse-word string, @proc ;  
   
 -1 Constant (addr)  
  0 Constant (int)  
  1 Constant (float)  
  2 Constant (void)  
  4 Constant (int...)  
  5 Constant (float...)  
  6 Constant (void...)  
   
 : proc:  ( pars type lib "name" "string" -- )  
     \G Creates a named proc stub  
     Create proc,  
 DOES> ( x1 .. xn -- r )  
     cell+ 2@ >r ;  
   
 : vaproc:  ( pars type lib "name" "string" -- )  
     \G Creates a named proc stub with variable arguments  
     Create proc,  
 DOES> ( x1 .. xn n -- r )  
     cell+ 2@ rot 2* cells + >r ;  
   
 : (>void)  >r ;  
   
 : vproc:  ( pars type lib "name" "string" -- )  
     \G Creates a named proc stub for void functions  
     Create proc,  
 DOES> ( x1 .. xn -- )  
     cell+ 2@ (>void) drop ;  
   
 : vvaproc:  ( pars type lib "name" "string" -- )  
     \G Creates a named proc stub with variable arguments, void return  
     Create proc,  
 DOES> ( x1 .. xn n -- )  
     cell+ 2@ rot 2* cells + (>void) drop ;  
   
 : label: ( type lib "name" "string" -- )  
     \G Creates a named label stub  
     -1 -rot Create proc,  
 DOES> ( -- addr )  
     [ 2 cells ] Literal + @ ;  
   
 : library ( "name" "file" -- )  
     \G loads library "file" and creates a proc defining word "name"  
     \G library format:  
     \G    linked list of libraries  
     \G    library handle  
     \G    linked list of library's procs  
     \G    OS name of library as counted string  
     Create  here libs @ A, dup libs !  
     0 , 0 A, bl parse-word string, @lib  
 DOES> ( pars/ type -- )  
     over -1 = IF  label:  
     ELSE  
         over 4 and IF  
             over 2 and IF  vvaproc:  ELSE  vaproc:  THEN  
         ELSE  
             over 2 and IF  vproc:  ELSE  proc:  THEN  
         THEN  
     THEN ;  
   
 : init-shared-libs ( -- )  
     defers 'cold  libs  
     0  libs  BEGIN  @ dup  WHILE  dup  REPEAT  drop  
     BEGIN  dup  WHILE  >r  
         r@ @lib  
         r@ 2 cells +  BEGIN  @ dup  WHILE  r@ over @proc  REPEAT  
         drop rdrop  
     REPEAT  drop ;  
   
 ' init-shared-libs IS 'cold  

Removed from v.1.2  
changed lines
  Added in v.1.9


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