File:  [gforth] / gforth / prims2x.fs
Revision 1.42: download - view: text, annotated - select for diffs
Mon May 10 12:50:49 1999 UTC (20 years, 5 months ago) by jwilke
Branches: MAIN
CVS tags: HEAD
Added support for explicit forth or c comments with \f and \c.

    1: \ converts primitives to, e.g., C code 
    2: 
    3: \ Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
    4: 
    5: \ This file is part of Gforth.
    6: 
    7: \ Gforth is free software; you can redistribute it and/or
    8: \ modify it under the terms of the GNU General Public License
    9: \ as published by the Free Software Foundation; either version 2
   10: \ of the License, or (at your option) any later version.
   11: 
   12: \ This program is distributed in the hope that it will be useful,
   13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15: \ GNU General Public License for more details.
   16: 
   17: \ You should have received a copy of the GNU General Public License
   18: \ along with this program; if not, write to the Free Software
   19: \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   20: 
   21: 
   22: \ This is not very nice (hard limits, no checking, assumes 1 chars = 1)
   23: 
   24: \ Optimizations:
   25: \ superfluous stores are removed. GCC removes the superfluous loads by itself
   26: \ TOS and FTOS can be kept in register( variable)s.
   27: \ 
   28: \ Problems:
   29: \ The TOS optimization is somewhat hairy. The problems by example:
   30: \ 1) dup ( w -- w w ): w=TOS; sp-=1; sp[1]=w; TOS=w;
   31: \    The store is not superfluous although the earlier opt. would think so
   32: \    Alternatively:    sp[0]=TOS; w=TOS; sp-=1; TOS=w;
   33: \ 2) ( -- .. ): sp[0] = TOS; ... /* This additional store is necessary */
   34: \ 3) ( .. -- ): ... TOS = sp[0]; /* as well as this load */
   35: \ 4) ( -- ): /* but here they are unnecessary */
   36: \ 5) Words that call NEXT themselves have to be done very carefully.
   37: \
   38: \ To do:
   39: \ add the store optimization for doubles
   40: \ regarding problem 1 above: It would be better (for over) to implement
   41: \ 	the alternative
   42: 
   43: warnings off
   44: 
   45: [IFUNDEF] vocabulary	\ we are executed just with kernel image
   46: 			\ load the rest that is needed
   47: 			\ (require fails because this file is needed from a
   48: 			\ different directory with the wordlibraries)
   49: include ./search.fs			
   50: include ./extend.fs
   51: [THEN]
   52: 
   53: [IFUNDEF] environment?
   54: include ./environ.fs
   55: [THEN]
   56: 
   57: include ./gray.fs
   58: 
   59: 100 constant max-effect \ number of things on one side of a stack effect
   60: 255 constant maxchar
   61: maxchar 1+ constant eof-char
   62: #tab constant tab-char
   63: #lf constant nl-char
   64: 
   65: variable rawinput \ pointer to next character to be scanned
   66: variable endrawinput \ pointer to the end of the input (the char after the last)
   67: variable cookedinput \ pointer to the next char to be parsed
   68: variable line \ line number of char pointed to by input
   69: 1 line !
   70: 2variable filename \ filename of original input file
   71: 0 0 filename 2!
   72: 2variable f-comment
   73: 0 0 f-comment 2!
   74: variable skipsynclines \ are sync lines ("#line ...") invisible to the parser?
   75: skipsynclines on 
   76: 
   77: Variable flush-comment flush-comment off
   78: 
   79: : ?flush-comment
   80:     flush-comment @ 0= ?EXIT
   81:     f-comment 2@ nip
   82:     IF  cr f-comment 2@ 2 /string 1-
   83: 	dup IF
   84: 	    2dup s" -" compare 0=
   85: 	    IF
   86: 		flush-comment @ 1 =
   87: 		IF    ." #else"
   88: 		ELSE  ." [ELSE]"  THEN
   89: 	    ELSE
   90: 		flush-comment @ 1 =
   91: 		IF    ." #ifdef HAS_" bounds ?DO  I c@ toupper emit  LOOP
   92: 		ELSE  ." has? " type ."  [IF]"  THEN
   93: 	    THEN  cr
   94: 	ELSE    flush-comment @ 1 = IF  ." #endif"  ELSE  ." [THEN]"  THEN
   95: 	    cr  THEN
   96: 	0 0 f-comment 2! THEN ;
   97: 
   98: : start ( -- addr )
   99:  cookedinput @ ;
  100: 
  101: : end ( addr -- addr u )
  102:  cookedinput @ over - ;
  103: 
  104: variable output \ xt ( -- ) of output word
  105: 
  106: : printprim ( -- )
  107:  output @ execute ;
  108: 
  109: : field
  110:  <builds-field ( n1 n2 -- n3 )
  111:  does>         ( addr1 -- addr2 )
  112:    @ + ;
  113: 
  114: : const-field
  115:  <builds-field ( n1 n2 -- n3 )
  116:  does>         ( addr -- w )
  117:    @ + @ ;
  118: 
  119: struct
  120:  2 cells field item-name
  121:  cell field item-d-offset
  122:  cell field item-f-offset
  123:  cell field item-type
  124: constant item-descr
  125: 
  126: 2variable forth-name
  127: 2variable wordset
  128: 2variable c-name
  129: 2variable doc
  130: 2variable c-code
  131: 2variable forth-code
  132: 2variable stack-string
  133: create effect-in  max-effect item-descr * allot
  134: create effect-out max-effect item-descr * allot
  135: variable effect-in-end ( pointer )
  136: variable effect-out-end ( pointer )
  137: 2variable effect-in-size
  138: 2variable effect-out-size
  139: variable c-line
  140: 2variable c-filename
  141: variable name-line
  142: 2variable name-filename
  143: 2variable last-name-filename
  144: 
  145: variable primitive-number -10 primitive-number !
  146: Variable function-number 0 function-number !
  147: 
  148: \ for several reasons stack items of a word are stored in a wordlist
  149: \ since neither forget nor marker are implemented yet, we make a new
  150: \ wordlist for every word and store it in the variable items
  151: variable items
  152: 
  153: \ a few more set ops
  154: 
  155: : bit-equivalent ( w1 w2 -- w3 )
  156:  xor invert ;
  157: 
  158: : complement ( set1 -- set2 )
  159:  empty ['] bit-equivalent binary-set-operation ;
  160: 
  161: \ the parser
  162: 
  163: eof-char max-member \ the whole character set + EOF
  164: 
  165: : getinput ( -- n )
  166:  rawinput @ endrawinput @ =
  167:  if
  168:    eof-char
  169:  else
  170:    cookedinput @ c@
  171:  endif ;
  172: 
  173: :noname ( n -- )
  174:  dup bl > if
  175:   emit space
  176:  else
  177:   .
  178:  endif ;
  179: print-token !
  180: 
  181: : testchar? ( set -- f )
  182:  getinput member? ;
  183: ' testchar? test-vector !
  184: 
  185: : checksyncline ( -- )
  186:     \ when input points to a newline, check if the next line is a
  187:     \ sync line.  If it is, perform the appropriate actions.
  188:     rawinput @ >r
  189:     s" #line " r@ over compare 0<> if
  190: 	rdrop 1 line +! EXIT
  191:     endif
  192:     0. r> 6 chars + 20 >number drop >r drop line ! r> ( c-addr )
  193:     dup c@ bl = if
  194: 	char+ dup c@ [char] " <> abort" sync line syntax"
  195: 	char+ dup 100 [char] " scan drop swap 2dup - save-mem filename 2!
  196: 	char+
  197:     endif
  198:     dup c@ nl-char <> abort" sync line syntax"
  199:     skipsynclines @ if
  200: 	dup char+ rawinput !
  201: 	rawinput @ c@ cookedinput @ c!
  202:     endif
  203:     drop ;
  204: 
  205: : ?nextchar ( f -- )
  206:     ?not? if
  207: 	filename 2@ type ." :" line @ 0 .r ." : syntax error, wrong char:"
  208: 	getinput . cr
  209: 	rawinput @ endrawinput @ over - 100 min type cr
  210: 	abort
  211:     endif
  212:     rawinput @ endrawinput @ <> if
  213: 	rawinput @ c@
  214: 	1 chars rawinput +!
  215: 	1 chars cookedinput +!
  216: 	nl-char = if
  217: 	    checksyncline
  218: 	endif
  219: 	rawinput @ c@ cookedinput @ c!
  220:     endif ;
  221: 
  222: : charclass ( set "name" -- )
  223:  ['] ?nextchar terminal ;
  224: 
  225: : .. ( c1 c2 -- set )
  226:  ( creates a set that includes the characters c, c1<=c<=c2 )
  227:  empty copy-set
  228:  swap 1+ rot do
  229:   i over add-member
  230:  loop ;
  231: 
  232: : ` ( -- terminal ) ( use: ` c )
  233:  ( creates anonymous terminal for the character c )
  234:  char singleton ['] ?nextchar make-terminal ;
  235: 
  236: char a char z ..  char A char Z ..  union char _ singleton union  charclass letter
  237: char 0 char 9 ..					charclass digit
  238: bl singleton						charclass blank
  239: tab-char singleton					charclass tab
  240: nl-char singleton eof-char over add-member complement	charclass nonl
  241: nl-char singleton eof-char over add-member char : over add-member complement  charclass nocolonnl
  242: bl 1+ maxchar ..					charclass nowhite
  243: char " singleton eof-char over add-member complement	charclass noquote
  244: nl-char singleton					charclass nl
  245: eof-char singleton					charclass eof
  246: 
  247: 
  248: (( letter (( letter || digit )) **
  249: )) <- c-name ( -- )
  250: 
  251: nowhite ++
  252: <- name ( -- )
  253: 
  254: Variable forth-flag
  255: Variable c-flag
  256: 
  257: (( (( ` f || ` F )) {{ start }} nonl ** 
  258:    {{ end forth-flag @ IF type cr ELSE 2drop THEN }}
  259: )) <- forth-comment ( -- )
  260: 
  261: (( (( ` c || ` C )) {{ start }} nonl ** 
  262:    {{ end c-flag @ IF type cr ELSE 2drop THEN }}
  263: )) <- c-comment ( -- )
  264: 
  265: (( (( forth-comment || c-comment )) ?? nonl ** )) <- comment-body
  266: 
  267: (( {{ ?flush-comment start }} ` \ comment-body nl {{ end
  268:       2dup 2 min s" \+" compare 0= IF  f-comment 2!  ELSE  2drop  THEN }}
  269: )) <- comment ( -- )
  270: 
  271: (( {{ effect-in }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} blank ** )) ** {{ effect-in-end ! }}
  272:    ` - ` - blank **
  273:    {{ effect-out }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} blank ** )) ** {{ effect-out-end ! }}
  274: )) <- stack-effect ( -- )
  275: 
  276: (( {{ s" " doc 2! s" " forth-code 2! }}
  277:    (( comment || nl )) **
  278:    (( {{ line @ name-line ! filename 2@ name-filename 2! }}
  279:       {{ start }} name {{ end 2dup forth-name 2! c-name 2! }}  tab ++
  280:       {{ start }} stack-effect {{ end stack-string 2! }} tab ++
  281:         {{ start }} name {{ end wordset 2! }} tab **
  282:         (( {{ start }}  c-name {{ end c-name 2! }} )) ??  nl
  283:    ))
  284:    (( ` " ` "  {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " nl )) ??
  285:    {{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl **  nl )) ** {{ end c-code 2! skipsynclines on }}
  286:    (( ` :  nl
  287:       {{ start }} (( nonl ++  nl )) ++ {{ end forth-code 2! }}
  288:    )) ??
  289:    (( nl || eof ))
  290: )) <- primitive ( -- )
  291: 
  292: (( (( primitive {{ printprim }} )) ** eof ))
  293: parser primitives2something
  294: warnings @ [IF]
  295: .( parser generated ok ) cr
  296: [THEN]
  297: 
  298: : primfilter ( file-id xt -- )
  299: \ fileid is for the input file, xt ( -- ) is for the output word
  300:  output !
  301:  here dup rawinput ! cookedinput !
  302:  here unused rot read-file throw
  303:  dup here + endrawinput !
  304:  allot
  305:  align
  306:  checksyncline
  307: \ begin
  308: \     getinput dup eof-char = ?EXIT emit true ?nextchar
  309: \ again ;
  310:  primitives2something ;
  311: 
  312: \ types
  313: 
  314: struct
  315:  2 cells field type-c-name
  316:  cell const-field type-d-size
  317:  cell const-field type-f-size
  318:  cell const-field type-fetch-handler
  319:  cell const-field type-store-handler
  320: constant type-description
  321: 
  322: : data-stack-access ( n1 n2 n3 -- )
  323: \ n1 is the offset of the accessed item, n2, n3 are effect-*-size
  324:  drop swap - 1- dup
  325:  if
  326:    ." sp[" 0 .r ." ]"
  327:  else
  328:    drop ." TOS"
  329:  endif ;
  330: 
  331: : fp-stack-access ( n1 n2 n3 -- )
  332: \ n1 is the offset of the accessed item, n2, n3 are effect-*-size
  333:  nip swap - 1- dup
  334:  if
  335:    ." fp[" 0 .r ." ]"
  336:  else
  337:    drop ." FTOS"
  338:  endif ;
  339: 
  340: : fetch-single ( item -- )
  341:  >r
  342:  r@ item-name 2@ type
  343:  ."  = (" 
  344:  r@ item-type @ type-c-name 2@ type ." ) "
  345:  r@ item-d-offset @ effect-in-size 2@ data-stack-access ." ;" cr
  346:  rdrop ; 
  347: 
  348: : fetch-double ( item -- )
  349:  >r
  350:  ." FETCH_DCELL("
  351:  r@ item-name 2@ type ." , "
  352:  r@ item-d-offset @ dup    effect-in-size 2@ data-stack-access
  353:  ." , "			1+ effect-in-size 2@ data-stack-access
  354:  ." );" cr
  355:  rdrop ;
  356: 
  357: : fetch-float ( item -- )
  358:  >r
  359:  r@ item-name 2@ type
  360:  ."  = "
  361:  \ ." (" r@ item-type @ type-c-name 2@ type ." ) "
  362:  r@ item-f-offset @ effect-in-size 2@ fp-stack-access ." ;" cr
  363:  rdrop ;
  364: 
  365: : d-same-as-in? ( item -- f )
  366: \ f is true iff the offset of item is the same as on input
  367:  >r
  368:  r@ item-name 2@ items @ search-wordlist 0=
  369:  abort" bug"
  370:  execute @
  371:  dup r@ =
  372:  if \ item first appeared in output
  373:    drop false
  374:  else
  375:    item-d-offset @ r@ item-d-offset @ =
  376:  endif
  377:  rdrop ;
  378: 
  379: : is-in-tos? ( item -- f )
  380: \ true if item has the same offset as the input TOS
  381:  item-d-offset @ 1+ effect-in-size 2@ drop = ;
  382: 
  383: : is-out-tos? ( item -- f )
  384: \ true if item has the same offset as the input TOS
  385:  item-d-offset @ 1+ effect-out-size 2@ drop = ;
  386: 
  387: : really-store-single ( item -- )
  388:  >r
  389:  r@ item-d-offset @ effect-out-size 2@ data-stack-access ."  = (Cell)"
  390:  r@ item-name 2@ type ." ;"
  391:  rdrop ;
  392: 
  393: : store-single ( item -- )
  394:  >r
  395:  r@ d-same-as-in?
  396:  if
  397:    r@ is-in-tos? r@ is-out-tos? xor
  398:    if
  399:      ." IF_TOS(" r@ really-store-single ." );" cr
  400:    endif
  401:  else
  402:    r@ really-store-single cr
  403:  endif
  404:  rdrop ;
  405: 
  406: : store-double ( item -- )
  407: \ !! store optimization is not performed, because it is not yet needed
  408:  >r
  409:  ." STORE_DCELL(" r@ item-name 2@ type ." , "
  410:  r@ item-d-offset @ dup    effect-out-size 2@ data-stack-access
  411:  ." , "			1+ effect-out-size 2@ data-stack-access
  412:  ." );" cr
  413:  rdrop ;
  414: 
  415: : f-same-as-in? ( item -- f )
  416: \ f is true iff the offset of item is the same as on input
  417:  >r
  418:  r@ item-name 2@ items @ search-wordlist 0=
  419:  abort" bug"
  420:  execute @
  421:  dup r@ =
  422:  if \ item first appeared in output
  423:    drop false
  424:  else
  425:    item-f-offset @ r@ item-f-offset @ =
  426:  endif
  427:  rdrop ;
  428: 
  429: : is-in-ftos? ( item -- f )
  430: \ true if item has the same offset as the input TOS
  431:  item-f-offset @ 1+ effect-in-size 2@ nip = ;
  432: 
  433: : really-store-float ( item -- )
  434:  >r
  435:  r@ item-f-offset @ effect-out-size 2@ fp-stack-access ."  = "
  436:  r@ item-name 2@ type ." ;"
  437:  rdrop ;
  438: 
  439: : store-float ( item -- )
  440:  >r
  441:  r@ f-same-as-in?
  442:  if
  443:    r@ is-in-ftos?
  444:    if
  445:      ." IF_FTOS(" r@ really-store-float ." );" cr
  446:    endif
  447:  else
  448:    r@ really-store-float cr
  449:  endif
  450:  rdrop ;
  451:  
  452: : single-type ( -- xt1 xt2 n1 n2 )
  453:  ['] fetch-single ['] store-single 1 0 ;
  454: 
  455: : double-type ( -- xt1 xt2 n1 n2 )
  456:  ['] fetch-double ['] store-double 2 0 ;
  457: 
  458: : float-type ( -- xt1 xt2 n1 n2 )
  459:  ['] fetch-float ['] store-float 0 1 ;
  460: 
  461: : s, ( addr u -- )
  462: \ allocate a string
  463:  here swap dup allot move ;
  464: 
  465: : starts-with ( addr u xt1 xt2 n1 n2 "prefix" -- )
  466: \ describes a type
  467: \ addr u specifies the C type name
  468: \ n1 is the size of the type on the data stack
  469: \ n2 is the size of the type on the FP stack
  470: \ stack effect entries of the type start with prefix
  471:  >r >r >r >r
  472:  dup >r here >r s,
  473:  create
  474:  r> r> 2,
  475:  r> r> r> , r> , swap , , ;
  476: 
  477: wordlist constant types
  478: get-current
  479: types set-current
  480: 
  481: s" Bool"	single-type starts-with f
  482: s" Char"	single-type starts-with c
  483: s" Cell"	single-type starts-with n
  484: s" Cell"	single-type starts-with w
  485: s" UCell"	single-type starts-with u
  486: s" DCell"	double-type starts-with d
  487: s" UDCell"	double-type starts-with ud
  488: s" Float"	float-type  starts-with r
  489: s" Cell *"	single-type starts-with a_
  490: s" Char *"	single-type starts-with c_
  491: s" Float *"	single-type starts-with f_
  492: s" DFloat *"	single-type starts-with df_
  493: s" SFloat *"	single-type starts-with sf_
  494: s" Xt"		single-type starts-with xt
  495: s" WID"		single-type starts-with wid
  496: s" struct F83Name *"	single-type starts-with f83name
  497: 
  498: set-current
  499: 
  500: : get-type ( addr1 u1 -- type-descr )
  501: \ get the type of the name in addr1 u1
  502: \ type-descr is a pointer to a type-descriptor
  503:  0 swap ?do
  504:    dup i types search-wordlist
  505:    if \ ok, we have the type ( addr1 xt )
  506:      execute nip
  507:      UNLOOP EXIT
  508:    endif
  509:  -1 s+loop
  510:  \ we did not find a type, abort
  511:  true abort" unknown type prefix" ;
  512: 
  513: : declare ( addr "name" -- )
  514: \ remember that there is a stack item at addr called name
  515:  create , ;
  516: 
  517: : declaration ( item -- )
  518:  dup item-name 2@ items @ search-wordlist
  519:  if \ already declared ( item xt )
  520:    execute @ item-type @ swap item-type !
  521:  else ( addr )
  522:    dup item-name 2@ nextname dup declare ( addr )
  523:    dup >r item-name 2@ 2dup get-type ( addr1 u type-descr )
  524:    dup r> item-type ! ( addr1 u type-descr )
  525:    type-c-name 2@ type space type ." ;" cr
  526:  endif ;
  527: 
  528: : declaration-list ( addr1 addr2 -- )
  529:  swap ?do
  530:   i declaration
  531:  item-descr +loop ;
  532: 
  533: : fetch ( addr -- )
  534:  dup item-type @ type-fetch-handler execute ;
  535: 
  536: : declarations ( -- )
  537:  wordlist dup items ! set-current
  538:  effect-in effect-in-end @ declaration-list
  539:  effect-out effect-out-end @ declaration-list ;
  540: 
  541: \ offset computation
  542: \ the leftmost (i.e. deepest) item has offset 0
  543: \ the rightmost item has the highest offset
  544: 
  545: : compute-offset ( n1 n2 item -- n3 n4 )
  546: \ n1, n3 are data-stack-offsets
  547: \ n2, n4 are the fp-stack-offsets
  548:  >r
  549:  swap dup r@ item-d-offset !
  550:  r@ item-type @ type-d-size +
  551:  swap dup r@ item-f-offset !
  552:  r@ item-type @ type-f-size +
  553:  rdrop ;
  554: 
  555: : compute-list ( addr1 addr2 -- n1 n2 )
  556: \ n1, n2 are the final offsets
  557:  0 0 2swap swap ?do
  558:   i compute-offset
  559:  item-descr +loop ;
  560: 
  561: : compute-offsets ( -- )
  562:  effect-in effect-in-end @ compute-list effect-in-size 2!
  563:  effect-out effect-out-end @ compute-list effect-out-size 2! ;
  564: 
  565: : flush-tos ( -- )
  566:  effect-in-size 2@ effect-out-size 2@
  567:  0<> rot 0= and
  568:  if
  569:    ." IF_FTOS(fp[0] = FTOS);" cr
  570:  endif
  571:  0<> swap 0= and
  572:  if
  573:    ." IF_TOS(sp[0] = TOS);" cr
  574:  endif ;
  575: 
  576: : fill-tos ( -- )
  577:  effect-in-size 2@ effect-out-size 2@
  578:  0= rot 0<> and
  579:  if
  580:    ." IF_FTOS(FTOS = fp[0]);" cr
  581:  endif
  582:  0= swap 0<> and
  583:  if
  584:    ." IF_TOS(TOS = sp[0]);" cr
  585:  endif ;
  586: 
  587: : fetches ( -- )
  588:  effect-in-end @ effect-in ?do
  589:    i fetch
  590:  item-descr +loop ; 
  591: 
  592: : stack-pointer-updates ( -- )
  593: \ we need not check if an update is a noop; gcc does this for us
  594:  effect-in-size 2@
  595:  effect-out-size 2@
  596:  rot swap - ( d-in d-out f-diff )
  597:  rot rot - ( f-diff d-diff )
  598:  ?dup IF  ." sp += " 0 .r ." ;" cr  THEN
  599:  ?dup IF  ." fp += " 0 .r ." ;" cr  THEN ;
  600: 
  601: : store ( item -- )
  602: \ f is true if the item should be stored
  603: \ f is false if the store is probably not necessary
  604:  dup item-type @ type-store-handler execute ;
  605: 
  606: : stores ( -- )
  607:  effect-out-end @ effect-out ?do
  608:    i store
  609:  item-descr +loop ; 
  610: 
  611: : .stack-list ( start end -- )
  612:  swap ?do
  613:    i item-name 2@ type space
  614:  item-descr +loop ; 
  615: 
  616: : output-c ( -- ) 1 flush-comment !
  617:     ?flush-comment
  618:  ." I_" c-name 2@ type ." :	/* " forth-name 2@ type ."  ( " stack-string 2@ type ."  ) */" cr
  619:  ." /* " doc 2@ type ."  */" cr
  620:  ." NAME(" [char] " emit forth-name 2@ type [char] " emit ." )" cr \ debugging
  621:  ." {" cr
  622:  ." DEF_CA" cr
  623:  declarations
  624:  compute-offsets \ for everything else
  625:  ." NEXT_P0;" cr
  626:  flush-tos
  627:  fetches
  628:  stack-pointer-updates
  629:  ." {" cr
  630:  ." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr
  631:  c-code 2@ type
  632:  ." }" cr
  633:  ." NEXT_P1;" cr
  634:  stores
  635:  fill-tos
  636:  ." NEXT_P2;" cr
  637:  ." }" cr
  638:  cr
  639: ;
  640: 
  641: : output-funclabel ( -- )
  642:   1 function-number +!
  643:   ." &I_" c-name 2@ type ." ," cr ;
  644: 
  645: : output-forthname ( -- )
  646:   1 function-number +!
  647:   '" emit forth-name 2@ type '" emit ." ," cr ;
  648: 
  649: : output-c-func ( -- )
  650:     1 function-number +!
  651:     ." void I_" c-name 2@ type ." ()      /* " forth-name 2@ type
  652:     ."  ( " stack-string 2@ type ."  ) */" cr
  653:     ." /* " doc 2@ type ."  */" cr
  654:     ." NAME(" [char] " emit forth-name 2@ type [char] " emit ." )" cr
  655:     \ debugging
  656:     ." {" cr
  657:     ." DEF_CA" cr
  658:     declarations
  659:     compute-offsets \ for everything else
  660:     ." NEXT_P0;" cr
  661:     flush-tos
  662:     fetches
  663:     stack-pointer-updates
  664:     ." {" cr
  665:     ." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr
  666:     c-code 2@ type
  667:     ." }" cr
  668:     ." NEXT_P1;" cr
  669:     stores
  670:     fill-tos
  671:     ." NEXT_P2;" cr
  672:     ." }" cr
  673:     cr ;
  674: 
  675: : output-label ( -- )  1 flush-comment !
  676:     ?flush-comment
  677:     ." (Label)&&I_" c-name 2@ type ." ," cr
  678:     -1 primitive-number +! ;
  679: 
  680: : output-alias ( -- )  flush-comment on
  681:     ?flush-comment
  682:     ( primitive-number @ . ." alias " ) ." Primitive " forth-name 2@ type cr
  683:     -1 primitive-number +! ;
  684: 
  685: : output-forth ( -- )  flush-comment on
  686:     ?flush-comment
  687:     forth-code @ 0=
  688:     IF    	\ output-alias
  689: 	\ this is bad for ec: an alias is compiled if tho word does not exist!
  690: 	\ JAW
  691:     ELSE  ." : " forth-name 2@ type ."   ( "
  692: 	effect-in effect-in-end @ .stack-list ." -- "
  693: 	effect-out effect-out-end @ .stack-list ." )" cr
  694: 	forth-code 2@ type cr
  695: 	-1 primitive-number +!
  696:     THEN ;
  697: 
  698: : output-tag-file ( -- )
  699:     name-filename 2@ last-name-filename 2@ compare if
  700: 	name-filename 2@ last-name-filename 2!
  701: 	#ff emit cr
  702: 	name-filename 2@ type
  703: 	." ,0" cr
  704:     endif ;
  705: 
  706: : output-tag ( -- )
  707:     output-tag-file
  708:     forth-name 2@ 1+ type
  709:     127 emit
  710:     space forth-name 2@ type space
  711:     1 emit
  712:     name-line @ 0 .r
  713:     ." ,0" cr ;
  714: 
  715: [IFDEF] documentation
  716: : register-doc ( -- )
  717:     get-current documentation set-current
  718:     forth-name 2@ nextname create
  719:     forth-name 2@ 2,
  720:     stack-string 2@ condition-stack-effect 2,
  721:     wordset 2@ 2,
  722:     c-name 2@ condition-pronounciation 2,
  723:     doc 2@ 2,
  724:     set-current ;
  725: [THEN]
  726: 
  727: : process-file ( addr u xt -- )
  728:     >r
  729:     2dup filename 2!
  730:     0 function-number !
  731:     r/o open-file abort" cannot open file"
  732:     warnings @ if
  733: 	." ------------ CUT HERE -------------" cr  endif
  734:     r> primfilter ;
  735: 
  736: : process      ( xt -- )
  737:     bl word count rot
  738:     process-file ;

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