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Diff for /gforth/see.fs between versions 1.23 and 1.38

version 1.23, 1999/05/20 13:31:57 version 1.38, 2002/01/04 20:31:54
Line 1 Line 1
 \ SEE.FS       highend SEE for ANSforth                16may93jaw  \ SEE.FS       highend SEE for ANSforth                16may93jaw
   
 \ Copyright (C) 1995 Free Software Foundation, Inc.  \ Copyright (C) 1995,2000 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.
   
   
 \ May be cross-compiled  \ May be cross-compiled
Line 28 Line 28
 require look.fs  require look.fs
 require termsize.fs  require termsize.fs
 require wordinfo.fs  require wordinfo.fs
 [IFUNDEF] .name : .name name>string type space ; [THEN]  [IFUNDEF] .name
   : id. ( nt -- ) \ gforth
       \G Print the name of the word represented by @var{nt}.
       \ this name comes from fig-Forth
       name>string type space ;
   
   ' id. alias .id ( nt -- )
   \G F83 name for @code{id.}.
   
   ' id. alias .name ( nt -- )
   \G Gforth <=0.5.0 name for @code{id.}.
   
   [THEN]
   
 decimal  decimal
   
Line 87  DEFER nlcount ' noop IS nlcount Line 99  DEFER nlcount ' noop IS nlcount
                 IF 2drop ELSE XPos +! C-Output @ IF emit ELSE drop THEN                  IF 2drop ELSE XPos +! C-Output @ IF emit ELSE drop THEN
                 THEN ;                  THEN ;
   
 DEFER .string  DEFER .string ( c-addr u n -- )
   
 [IFDEF] Green  [IFDEF] Green
 VARIABLE Colors Colors on  VARIABLE Colors Colors on
Line 136  VARIABLE SearchPointer Line 148  VARIABLE SearchPointer
 \ The branchtable consists of three entrys:  \ The branchtable consists of three entrys:
 \ address of branch , branch destination , branch type  \ address of branch , branch destination , branch type
   
 CREATE BranchTable 500 allot  CREATE BranchTable 128 cells allot
 here 3 cells -  here 3 cells -
 ACONSTANT MaxTable  ACONSTANT MaxTable
   
Line 242  VARIABLE C-Pass Line 254  VARIABLE C-Pass
     THEN      THEN
     cell+ ;      cell+ ;
   
   : .word ( addr xt -- addr )
       look 0= IF
           drop dup 1 cells - @ dup body> look
           IF
               nip dup ." <" name>string rot wordinfo .string ." >"
           ELSE
               drop ." <" 0 .r ." >"
           THEN
       ELSE
           dup cell+ @ immediate-mask and
           IF
               bl cemit  ." POSTPONE "
           THEN
           dup name>string rot wordinfo .string
       THEN ;
   
   : c-call
       Display? IF  ." call " dup @ body> .word bl cemit  THEN  cell+ ;
   
 : .name-without ( addr -- addr )  : .name-without ( addr -- addr )
 \ prints a name without () e.g. (+LOOP) or (s")  \ prints a name without () e.g. (+LOOP) or (s")
   dup 1 cells - @ look     dup 1 cells - @ look 
Line 413  VARIABLE C-Pass Line 444  VARIABLE C-Pass
   
 CREATE C-Table  CREATE C-Table
                 ' lit A,            ' c-lit A,                  ' lit A,            ' c-lit A,
   [IFDEF] call    ' call A,           ' c-call A, [THEN]
                 ' (s") A,           ' c-c" A,                  ' (s") A,           ' c-c" A,
                  ' (.") A,          ' c-c" A,                   ' (.") A,          ' c-c" A,
                 ' "lit A,           ' c-c" A,                  ' "lit A,           ' c-c" A,
Line 476  c-extender ! Line 508  c-extender !
                   THEN ;                    THEN ;
   
 : analyse ( a-addr1 -- a-addr2 )  : analyse ( a-addr1 -- a-addr2 )
         Branches @ IF BranchTo? THEN      Branches @ IF BranchTo? THEN
         dup cell+ swap @      dup cell+ swap @
         dup >r DoTable r> swap IF drop EXIT THEN      dup >r DoTable r> swap IF drop EXIT THEN
         Display?      Display?
         IF look 0= IF  drop dup 1 cells - @ .  \ ABORT" SEE: Bua!"      IF
         ELSE          .word bl cemit
             dup cell+ count dup immediate-mask and      ELSE
             IF  bl cemit  ." POSTPONE " THEN          drop
             31 and rot wordinfo .string  THEN  bl cemit      THEN ;
         ELSE drop  
         THEN ;  
   
 : c-init  : c-init
         0 YPos ! 0 XPos !          0 YPos ! 0 XPos !
Line 514  Defer xt-see-xt ( xt -- ) Line 544  Defer xt-see-xt ( xt -- )
     then      then
     space ;      space ;
   
 Defer discode ( addr -- )  Defer discode ( addr u -- ) \ gforth
 \  hook for the disassembler: disassemble code at addr (as far as the  \G hook for the disassembler: disassemble code at addr of length u
 \  disassembler thinks is sensible)  ' dump IS discode
 :noname ( addr -- )  
     drop ." ..." ;  : next-head ( addr1 -- addr2 ) \ gforth
 IS discode      \G find the next header starting after addr1, up to here (unreliable).
       here swap u+do
           i head?
           if
               i unloop exit
           then
       cell +loop
       here ;
   
   : umin ( u1 u2 -- u )
       2dup u>
       if
           swap
       then
       drop ;
           
   : next-prim ( addr1 -- addr2 ) \ gforth
       \G find the next primitive after addr1 (unreliable)
       1+ >r -1 primstart
       begin ( umin head R: boundary )
           @ dup
       while
           tuck name>int >code-address ( head1 umin ca R: boundary )
           r@ - umin
           swap
       repeat
       drop dup r@ negate u>=
       \ "umin+boundary within [0,boundary)" = "umin within [-boundary,0)"
       if ( umin R: boundary ) \ no primitive found behind -> use a default length
           drop 31
       then
       r> + ;
   
 : seecode ( xt -- )  : seecode ( xt -- )
     dup s" Code" .defname      dup s" Code" .defname
Line 527  IS discode Line 588  IS discode
     if      if
         >code-address          >code-address
     then      then
     discode      dup in-dictionary? \ user-defined code word?
     ."  end-code" cr ;      if
           dup next-head
       else
           dup next-prim
       then
       over - discode
       ." end-code" cr ;
 : seevar ( xt -- )  : seevar ( xt -- )
     s" Variable" .defname cr ;      s" Variable" .defname cr ;
 : seeuser ( xt -- )  : seeuser ( xt -- )
Line 542  IS discode Line 609  IS discode
 : seedefer ( xt -- )  : seedefer ( xt -- )
     dup >body @ xt-see-xt cr      dup >body @ xt-see-xt cr
     dup s" Defer" .defname cr      dup s" Defer" .defname cr
     >name dup ??? = if      >name ?dup-if
         drop ." lastxt >body !"  
     else  
         ." IS " .name cr          ." IS " .name cr
       else
           ." lastxt >body !"
     then ;      then ;
 : see-threaded ( addr -- )  : see-threaded ( addr -- )
     C-Pass @ DebugMode = IF      C-Pass @ DebugMode = IF
Line 566  IS discode Line 633  IS discode
     dup >body ." 0 " ? ." 0 0 "      dup >body ." 0 " ? ." 0 0 "
     s" Field" .defname cr ;      s" Field" .defname cr ;
   
 : xt-see ( xt -- )  : xt-see ( xt -- ) \ gforth
       \G Decompile the definition represented by @i{xt}.
     cr c-init      cr c-init
     dup >does-code      dup >does-code
     if      if
Line 590  IS discode Line 658  IS discode
 [ [IFDEF] dofield: ]  [ [IFDEF] dofield: ]
         dofield: of seefield endof          dofield: of seefield endof
 [ [THEN] ]  [ [THEN] ]
         over >body of seecode endof          over       of seecode endof \ direct threaded code words
           over >body of seecode endof \ indirect threaded code words
         2drop abort" unknown word type"          2drop abort" unknown word type"
     ENDCASE ;      ENDCASE ;
   
Line 629  IS discode Line 698  IS discode
     \G etc.) is lost.      \G etc.) is lost.
     name find-name dup 0=      name find-name dup 0=
     IF      IF
         drop -&13 bounce          drop -&13 throw
     THEN      THEN
     name-see ;      name-see ;
   
Removed from v.1.23  
changed lines
  Added in v.1.38

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