[gforth] / gforth / look.fs  

gforth: gforth/look.fs

Diff for /gforth/look.fs between version 1.22 and 1.23

version 1.22, Sat Jan 4 08:26:57 2003 UTC version 1.23, Mon Jan 6 11:18:59 2003 UTC
Line 41 
Line 41 
         @          @
     then ;      then ;
   
 : (look)  ( xt startlfa -- lfa flag )  : search-name  ( xt startlfa -- nt|0 )
     \ look up name of primitive with code at xt      \ look up name of primitive with code at xt
     swap      swap
     >r false swap      >r false swap
Line 53 
Line 53 
                 nip dup                  nip dup
             THEN              THEN
     REPEAT      REPEAT
     drop rdrop      drop rdrop ;
     dup 0<> ;  
   
 : threaded>xt ( ca -- xt|0 )  : threaded>xt ( ca -- xt|0 )
 \G For the code address ca of a primitive, find the xt (or 0).  \G For the code address ca of a primitive, find the xt (or 0).
Line 77 
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 has? rom  has? rom
 [IF]  [IF]
 : prim>name ( xt -- nt flag )  : prim>name ( xt -- nt|0 )
     forth-wordlist @ (look) ;      forth-wordlist @ search-name ;
   
 : look  : look ( xt -- lfa flag )
     dup [ unlock rom-dictionary area lock ]      dup [ unlock rom-dictionary area lock ]
     literal literal within      literal literal within
     IF      IF
         >head-noprim dup ?? <>          >head-noprim dup ?? <>
     ELSE      ELSE
         xt>threaded threaded>name          prim>name dup 0<>
     THEN ;      THEN ;
 [ELSE]  [ELSE]
 : look ( cfa -- lfa flag )  : look ( cfa -- lfa flag )
Line 97 
Line 96 
   
 : PrimStart ['] true >head-noprim ;  : PrimStart ['] true >head-noprim ;
   
 : prim>name ( xt -- lfa flag )  : prim>name ( xt -- nt|0 )
     PrimStart (look) ;      PrimStart search-name ;
   
 : look ( cfa -- lfa flag )  : look ( xt -- lfa flag )
     dup in-dictionary?      dup in-dictionary?
     IF      IF
         >head-noprim dup ??? <>          >head-noprim dup ??? <>
     ELSE      ELSE
         prim>name          prim>name dup 0<>
     THEN ;      THEN ;
   
 [THEN]  [THEN]
 [THEN]  [THEN]
   
 : threaded>name ( ca -- lfa flag )  : threaded>name ( ca -- nt|0 )
     threaded>xt prim>name ;      threaded>xt prim>name ;
   
 : >head ( cfa -- nt|0 ) \ gforth to-head  : >head ( cfa -- nt|0 ) \ gforth to-head

Generate output suitable for use with a patch program
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Removed from v.1.22  
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  Added in v.1.23
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