Annotation of gforth/prims2x.fs, revision 1.79

1.16      anton       1: \ converts primitives to, e.g., C code 
                      2: 
1.47      anton       3: \ Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc.
1.16      anton       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
1.48      anton      19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.16      anton      20: 
                     21: 
1.71      anton      22: \ This is not very nice (hard limits, no checking, assumes 1 chars = 1).
                     23: \ And it grew even worse when it aged.
1.1       anton      24: 
                     25: \ Optimizations:
                     26: \ superfluous stores are removed. GCC removes the superfluous loads by itself
                     27: \ TOS and FTOS can be kept in register( variable)s.
                     28: \ 
                     29: \ Problems:
                     30: \ The TOS optimization is somewhat hairy. The problems by example:
                     31: \ 1) dup ( w -- w w ): w=TOS; sp-=1; sp[1]=w; TOS=w;
                     32: \    The store is not superfluous although the earlier opt. would think so
                     33: \    Alternatively:    sp[0]=TOS; w=TOS; sp-=1; TOS=w;
                     34: \ 2) ( -- .. ): sp[0] = TOS; ... /* This additional store is necessary */
                     35: \ 3) ( .. -- ): ... TOS = sp[0]; /* as well as this load */
                     36: \ 4) ( -- ): /* but here they are unnecessary */
                     37: \ 5) Words that call NEXT themselves have to be done very carefully.
                     38: \
                     39: \ To do:
1.8       pazsan     40: \ add the store optimization for doubles
1.1       anton      41: \ regarding problem 1 above: It would be better (for over) to implement
                     42: \      the alternative
                     43: 
1.3       pazsan     44: warnings off
                     45: 
1.39      jwilke     46: [IFUNDEF] vocabulary   \ we are executed just with kernel image
                     47:                        \ load the rest that is needed
                     48:                        \ (require fails because this file is needed from a
                     49:                        \ different directory with the wordlibraries)
                     50: include ./search.fs                    
                     51: include ./extend.fs
1.40      anton      52: [THEN]
1.76      pazsan     53: include ./stuff.fs
1.40      anton      54: 
                     55: [IFUNDEF] environment?
1.39      jwilke     56: include ./environ.fs
                     57: [THEN]
1.25      pazsan     58: 
1.49      anton      59: : struct% struct ; \ struct is redefined in gray
                     60: 
1.39      jwilke     61: include ./gray.fs
1.1       anton      62: 
1.69      anton      63: 32 constant max-effect \ number of things on one side of a stack effect
1.71      anton      64: 4 constant max-stacks  \ the max. number of stacks (including inst-stream).
1.1       anton      65: 255 constant maxchar
                     66: maxchar 1+ constant eof-char
1.17      anton      67: #tab constant tab-char
                     68: #lf constant nl-char
1.1       anton      69: 
1.18      anton      70: variable rawinput \ pointer to next character to be scanned
                     71: variable endrawinput \ pointer to the end of the input (the char after the last)
                     72: variable cookedinput \ pointer to the next char to be parsed
1.17      anton      73: variable line \ line number of char pointed to by input
1.65      anton      74: variable line-start \ pointer to start of current line (for error messages)
                     75: 0 line !
1.17      anton      76: 2variable filename \ filename of original input file
                     77: 0 0 filename 2!
1.25      pazsan     78: 2variable f-comment
                     79: 0 0 f-comment 2!
1.17      anton      80: variable skipsynclines \ are sync lines ("#line ...") invisible to the parser?
                     81: skipsynclines on 
1.1       anton      82: 
1.72      anton      83: : th ( addr1 n -- addr2 )
                     84:     cells + ;
                     85: 
                     86: : holds ( addr u -- )
                     87:     \ like HOLD, but for a string
                     88:     tuck + swap 0 +do
                     89:        1- dup c@ hold
                     90:     loop
                     91:     drop ;
1.71      anton      92: 
1.1       anton      93: : start ( -- addr )
1.18      anton      94:  cookedinput @ ;
1.1       anton      95: 
                     96: : end ( addr -- addr u )
1.18      anton      97:  cookedinput @ over - ;
1.1       anton      98: 
1.71      anton      99: : print-error-line ( -- )
                    100:     \ print the current line and position
                    101:     line-start @ endrawinput @ over - 2dup nl-char scan drop nip ( start end )
                    102:     over - type cr
                    103:     line-start @ rawinput @ over - typewhite ." ^" cr ;
                    104: 
                    105: : ?print-error { f addr u -- }
                    106:     f ?not? if
                    107:        outfile-id >r try
                    108:            stderr to outfile-id
                    109:            filename 2@ type ." :" line @ 0 .r ." : " addr u type cr
                    110:            print-error-line
                    111:            0
                    112:        recover endtry
                    113:        r> to outfile-id throw
                    114:        abort
                    115:     endif ;
                    116: 
1.63      anton     117: : quote ( -- )
                    118:     [char] " emit ;
                    119: 
1.72      anton     120: variable output          \ xt ( -- ) of output word for simple primitives
                    121: variable output-combined \ xt ( -- ) of output word for combined primitives
1.1       anton     122: 
                    123: : printprim ( -- )
                    124:  output @ execute ;
                    125: 
1.49      anton     126: struct%
1.71      anton     127:     cell%    field stack-number \ the number of this stack
1.49      anton     128:     cell% 2* field stack-pointer \ stackpointer name
1.74      anton     129:     cell%    field stack-type \ name for default type of stack items
1.49      anton     130:     cell% 2* field stack-cast \ cast string for assignments to stack elements
1.53      anton     131:     cell%    field stack-in-index-xt \ ( in-size item -- in-index )
1.49      anton     132: end-struct stack%
                    133: 
1.53      anton     134: struct%
                    135:  cell% 2* field item-name   \ name, excluding stack prefixes
                    136:  cell%    field item-stack  \ descriptor for the stack used, 0 is default
                    137:  cell%    field item-type   \ descriptor for the item type
                    138:  cell%    field item-offset \ offset in stack items, 0 for the deepest element
1.66      anton     139:  cell%   field item-first  \ true if this is the first occurence of the item
1.53      anton     140: end-struct item%
                    141: 
                    142: struct%
                    143:     cell% 2* field type-c-name
                    144:     cell%    field type-stack \ default stack
                    145:     cell%    field type-size  \ size of type in stack items
                    146:     cell%    field type-fetch \ xt of fetch code generator ( item -- )
                    147:     cell%    field type-store \ xt of store code generator ( item -- )
                    148: end-struct type%
                    149: 
1.72      anton     150: variable next-stack-number 0 next-stack-number !
                    151: create stacks max-stacks cells allot \ array of stacks
                    152: 
1.53      anton     153: : stack-in-index ( in-size item -- in-index )
                    154:     item-offset @ - 1- ;
                    155: 
                    156: : inst-in-index ( in-size item -- in-index )
                    157:     nip dup item-offset @ swap item-type @ type-size @ + 1- ;
                    158: 
1.74      anton     159: : make-stack ( addr-ptr u1 type addr-cast u2 "stack-name" -- )
1.49      anton     160:     create stack% %allot >r
1.72      anton     161:     r@ stacks next-stack-number @ th !
1.71      anton     162:     next-stack-number @ r@ stack-number !  1 next-stack-number +!
1.49      anton     163:     save-mem r@ stack-cast 2!
1.74      anton     164:     r@ stack-type !
1.53      anton     165:     save-mem r@ stack-pointer 2! 
                    166:     ['] stack-in-index r> stack-in-index-xt ! ;
1.49      anton     167: 
                    168: \ stack items
                    169: 
                    170: : init-item ( addr u addr1 -- )
                    171:     \ initialize item at addr1 with name addr u
                    172:     \ !! remove stack prefix
                    173:     dup item% %size erase
                    174:     item-name 2! ;
                    175: 
1.64      anton     176: : map-items { addr end xt -- }
                    177:     \ perform xt for all items in array addr...end
                    178:     end addr ?do
                    179:        i xt execute
                    180:     item% %size +loop ;
                    181: 
1.77      anton     182: \ types
                    183: 
                    184: : print-type-prefix ( type -- )
                    185:     body> >head name>string type ;
                    186: 
1.49      anton     187: \ various variables for storing stuff of one primitive
1.1       anton     188: 
1.69      anton     189: struct%
                    190:     cell% 2* field prim-name
                    191:     cell% 2* field prim-wordset
                    192:     cell% 2* field prim-c-name
                    193:     cell% 2* field prim-doc
                    194:     cell% 2* field prim-c-code
                    195:     cell% 2* field prim-forth-code
                    196:     cell% 2* field prim-stack-string
1.75      anton     197:     cell%    field prim-items-wordlist \ unique items
1.69      anton     198:     item% max-effect * field prim-effect-in
                    199:     item% max-effect * field prim-effect-out
                    200:     cell%    field prim-effect-in-end
                    201:     cell%    field prim-effect-out-end
1.71      anton     202:     cell% max-stacks * field prim-stacks-in  \ number of in items per stack
                    203:     cell% max-stacks * field prim-stacks-out \ number of out items per stack
1.69      anton     204: end-struct prim%
                    205: 
1.70      anton     206: : make-prim ( -- prim )
                    207:     prim% %alloc { p }
                    208:     s" " p prim-doc 2! s" " p prim-forth-code 2! s" " p prim-wordset 2!
                    209:     p ;
                    210: 
1.79    ! anton     211: 0 value prim     \ in combined prims either combined or a part
        !           212: 0 value combined \ in combined prims the combined prim
        !           213: variable in-part \ true if processing a part
        !           214:  in-part off
        !           215: 
        !           216: 1000 constant max-combined
        !           217: create combined-prims max-combined cells allot
        !           218: variable num-combined
        !           219: 
        !           220: create current-depth max-stacks cells allot
        !           221: create max-depth     max-stacks cells allot
        !           222: create min-depth     max-stacks cells allot
1.69      anton     223: 
1.71      anton     224: wordlist constant primitives
                    225: 
                    226: : create-prim ( prim -- )
                    227:     get-current >r
                    228:     primitives set-current
                    229:     dup prim-name 2@ nextname constant
                    230:     r> set-current ;
                    231: 
                    232: : stack-in ( stack -- addr )
                    233:     \ address of number of stack items in effect in
                    234:     stack-number @ cells prim prim-stacks-in + ;
                    235: 
                    236: : stack-out ( stack -- addr )
                    237:     \ address of number of stack items in effect out
                    238:     stack-number @ cells prim prim-stacks-out + ;
                    239: 
1.69      anton     240: \ global vars
1.17      anton     241: variable c-line
                    242: 2variable c-filename
                    243: variable name-line
                    244: 2variable name-filename
                    245: 2variable last-name-filename
1.30      pazsan    246: Variable function-number 0 function-number !
1.1       anton     247: 
                    248: \ a few more set ops
                    249: 
                    250: : bit-equivalent ( w1 w2 -- w3 )
                    251:  xor invert ;
                    252: 
                    253: : complement ( set1 -- set2 )
                    254:  empty ['] bit-equivalent binary-set-operation ;
                    255: 
                    256: \ types
                    257: 
1.79    ! anton     258: 
        !           259: : normal-stack-access ( n stack -- )
1.49      anton     260:     stack-pointer 2@ type
                    261:     dup
                    262:     if
                    263:        ." [" 0 .r ." ]"
                    264:     else
                    265:        drop ." TOS"
                    266:     endif ;
1.1       anton     267: 
1.79    ! anton     268: : part-stack-access { n stack -- }
        !           269:     \ print _<stack><x>, x=maxdepth-currentdepth-n-1
        !           270:     ." _" stack stack-pointer 2@ type
        !           271:     stack stack-number @ { stack# }
        !           272:     combined prim-stacks-in stack# th @ assert( dup max-depth stack# th @ = )
        !           273:     current-depth stack# th @ - n - 1-
        !           274:     0 .r ;
        !           275: 
        !           276: : stack-access ( n stack -- )
        !           277:     \ print a stack access at index n of stack
        !           278:     in-part @ if
        !           279:        part-stack-access
        !           280:     else
        !           281:        normal-stack-access
        !           282:     endif ;
        !           283: 
1.53      anton     284: : item-in-index { item -- n }
1.49      anton     285:     \ n is the index of item (in the in-effect)
1.53      anton     286:     item item-stack @ dup >r stack-in @ ( in-size r:stack )
                    287:     item r> stack-in-index-xt @ execute ;
1.1       anton     288: 
1.78      anton     289: : item-stack-type-name ( item -- addr u )
                    290:     item-stack @ stack-type @ type-c-name 2@ ;
                    291: 
1.1       anton     292: : fetch-single ( item -- )
1.49      anton     293:  \ fetch a single stack item from its stack
1.1       anton     294:  >r
1.8       pazsan    295:  r@ item-name 2@ type
1.78      anton     296:  ."  = vm_" r@ item-stack-type-name type
1.77      anton     297:  ." 2" r@ item-type @ print-type-prefix ." ("
1.49      anton     298:  r@ item-in-index r@ item-stack @ stack-access
1.77      anton     299:  ." );" cr
1.1       anton     300:  rdrop ; 
                    301: 
                    302: : fetch-double ( item -- )
1.49      anton     303:  \ fetch a double stack item from its stack
1.1       anton     304:  >r
1.78      anton     305:  ." vm_two"
                    306:  r@ item-stack-type-name type ." 2"
                    307:  r@ item-type @ print-type-prefix ." ("
1.20      anton     308:  r@ item-name 2@ type ." , "
1.61      anton     309:  r@ item-in-index r@ item-stack @ 2dup ." (Cell)" stack-access
                    310:  ." , "                      -1 under+ ." (Cell)" stack-access
1.20      anton     311:  ." );" cr
1.1       anton     312:  rdrop ;
                    313: 
1.49      anton     314: : same-as-in? ( item -- f )
                    315:  \ f is true iff the offset and stack of item is the same as on input
1.1       anton     316:  >r
1.74      anton     317:  r@ item-first @ if
                    318:      rdrop false exit
                    319:  endif
1.75      anton     320:  r@ item-name 2@ prim prim-items-wordlist @ search-wordlist 0= abort" bug"
1.1       anton     321:  execute @
                    322:  dup r@ =
                    323:  if \ item first appeared in output
                    324:    drop false
                    325:  else
1.49      anton     326:    dup  item-stack  @ r@ item-stack  @ = 
                    327:    swap item-offset @ r@ item-offset @ = and
1.1       anton     328:  endif
                    329:  rdrop ;
                    330: 
1.49      anton     331: : item-out-index ( item -- n )
                    332:     \ n is the index of item (in the in-effect)
                    333:     >r r@ item-stack @ stack-out @ r> item-offset @ - 1- ;
1.31      pazsan    334: 
1.1       anton     335: : really-store-single ( item -- )
                    336:  >r
1.77      anton     337:  r@ item-out-index r@ item-stack @ stack-access ."  = vm_"
                    338:  r@ item-type @ print-type-prefix ." 2"
1.78      anton     339:  r@ item-stack-type-name type ." ("
1.77      anton     340:  r@ item-name 2@ type ." );"
1.1       anton     341:  rdrop ;
                    342: 
                    343: : store-single ( item -- )
                    344:  >r
1.49      anton     345:  r@ same-as-in?
1.1       anton     346:  if
1.49      anton     347:    r@ item-in-index 0= r@ item-out-index 0= xor
1.1       anton     348:    if
1.49      anton     349:        ." IF_" r@ item-stack @ stack-pointer 2@ type
                    350:        ." TOS(" r@ really-store-single ." );" cr
1.1       anton     351:    endif
                    352:  else
                    353:    r@ really-store-single cr
                    354:  endif
                    355:  rdrop ;
                    356: 
                    357: : store-double ( item -- )
                    358: \ !! store optimization is not performed, because it is not yet needed
                    359:  >r
1.78      anton     360:  ." vm_"
                    361:  r@ item-type @ print-type-prefix ." 2two"
                    362:  r@ item-stack-type-name type ." ("
                    363:  r@ item-name 2@ type ." , "
1.49      anton     364:  r@ item-out-index r@ item-stack @ 2dup stack-access
                    365:  ." , "                       -1 under+ stack-access
1.20      anton     366:  ." );" cr
1.1       anton     367:  rdrop ;
                    368: 
1.54      anton     369: : single ( -- xt1 xt2 n )
                    370:     ['] fetch-single ['] store-single 1 ;
1.1       anton     371: 
1.54      anton     372: : double ( -- xt1 xt2 n )
                    373:     ['] fetch-double ['] store-double 2 ;
1.1       anton     374: 
                    375: : s, ( addr u -- )
                    376: \ allocate a string
                    377:  here swap dup allot move ;
                    378: 
1.50      anton     379: wordlist constant prefixes
                    380: 
                    381: : declare ( addr "name" -- )
                    382: \ remember that there is a stack item at addr called name
                    383:  create , ;
                    384: 
                    385: : !default ( w addr -- )
                    386:     dup @ if
                    387:        2drop \ leave nonzero alone
                    388:     else
                    389:        !
                    390:     endif ;
                    391: 
                    392: : create-type { addr u xt1 xt2 n stack -- } ( "prefix" -- )
1.49      anton     393:     \ describes a type
                    394:     \ addr u specifies the C type name
                    395:     \ stack effect entries of the type start with prefix
                    396:     create type% %allot >r
                    397:     addr u save-mem r@ type-c-name 2!
                    398:     xt1   r@ type-fetch !
                    399:     xt2   r@ type-store !
                    400:     n     r@ type-size !
                    401:     stack r@ type-stack !
                    402:     rdrop ;
1.1       anton     403: 
1.54      anton     404: : type-prefix ( xt1 xt2 n stack "prefix" -- )
1.50      anton     405:     create-type
                    406: does> ( item -- )
                    407:     \ initialize item
                    408:     { item typ }
                    409:     typ item item-type !
                    410:     typ type-stack @ item item-stack !default
1.75      anton     411:     item item-name 2@ prim prim-items-wordlist @ search-wordlist 0= if
1.66      anton     412:        item item-name 2@ nextname item declare
                    413:        item item-first on
                    414:        \ typ type-c-name 2@ type space type  ." ;" cr
1.50      anton     415:     else
                    416:        drop
1.66      anton     417:        item item-first off
1.50      anton     418:     endif ;
                    419: 
                    420: : execute-prefix ( item addr1 u1 -- )
                    421:     \ execute the word ( item -- ) associated with the longest prefix
                    422:     \ of addr1 u1
                    423:     0 swap ?do
                    424:        dup i prefixes search-wordlist
                    425:        if \ ok, we have the type ( item addr1 xt )
                    426:            nip execute
                    427:            UNLOOP EXIT
                    428:        endif
                    429:        -1 s+loop
                    430:     \ we did not find a type, abort
                    431:     true abort" unknown prefix" ;
1.1       anton     432: 
                    433: : declaration ( item -- )
1.50      anton     434:     dup item-name 2@ execute-prefix ;
1.1       anton     435: 
1.64      anton     436: : declaration-list ( addr1 addr2 -- )
                    437:     ['] declaration map-items ;
                    438: 
                    439: : declarations ( -- )
1.75      anton     440:  wordlist dup prim prim-items-wordlist ! set-current
1.69      anton     441:  prim prim-effect-in prim prim-effect-in-end @ declaration-list
                    442:  prim prim-effect-out prim prim-effect-out-end @ declaration-list ;
1.64      anton     443: 
1.66      anton     444: : print-declaration { item -- }
                    445:     item item-first @ if
                    446:        item item-type @ type-c-name 2@ type space
                    447:        item item-name 2@ type ." ;" cr
                    448:     endif ;
                    449: 
                    450: : print-declarations ( -- )
1.69      anton     451:     prim prim-effect-in  prim prim-effect-in-end  @ ['] print-declaration map-items
                    452:     prim prim-effect-out prim prim-effect-out-end @ ['] print-declaration map-items ;
1.66      anton     453:     
1.51      anton     454: : stack-prefix ( stack "prefix" -- )
                    455:     name tuck nextname create ( stack length ) 2,
                    456: does> ( item -- )
                    457:     2@ { item stack prefix-length }
                    458:     item item-name 2@ prefix-length /string item item-name 2!
                    459:     stack item item-stack !
                    460:     item declaration ;
1.73      anton     461: 
1.74      anton     462: \ types pointed to by stacks for use in combined prims
                    463: s" Cell"  single 0 create-type cell-type
                    464: s" Float" single 0 create-type float-type
                    465: 
                    466: s" sp" save-mem cell-type  s" (Cell)" make-stack data-stack 
1.77      anton     467: s" fp" save-mem float-type s" "       make-stack fp-stack
                    468: s" rp" save-mem cell-type  s" (Cell)" make-stack return-stack
1.74      anton     469: s" IP" save-mem cell-type  s" error don't use # on results" make-stack inst-stream
1.73      anton     470: ' inst-in-index inst-stream stack-in-index-xt !
                    471: \ !! initialize stack-in and stack-out
1.1       anton     472: 
                    473: \ offset computation
                    474: \ the leftmost (i.e. deepest) item has offset 0
                    475: \ the rightmost item has the highest offset
                    476: 
1.49      anton     477: : compute-offset { item xt -- }
                    478:     \ xt specifies in/out; update stack-in/out and set item-offset
                    479:     item item-type @ type-size @
                    480:     item item-stack @ xt execute dup @ >r +!
                    481:     r> item item-offset ! ;
                    482: 
1.64      anton     483: : compute-offset-in ( addr1 addr2 -- )
                    484:     ['] stack-in compute-offset ;
                    485: 
                    486: : compute-offset-out ( addr1 addr2 -- )
                    487:     ['] stack-out compute-offset ;
1.49      anton     488: 
                    489: : clear-stack { -- }
                    490:     dup stack-in off stack-out off ;
1.1       anton     491: 
                    492: : compute-offsets ( -- )
1.51      anton     493:     data-stack clear-stack  fp-stack clear-stack return-stack clear-stack
1.53      anton     494:     inst-stream clear-stack
1.69      anton     495:     prim prim-effect-in  prim prim-effect-in-end  @ ['] compute-offset-in  map-items
                    496:     prim prim-effect-out prim prim-effect-out-end @ ['] compute-offset-out map-items
1.53      anton     497:     inst-stream stack-out @ 0<> abort" # can only be on the input side" ;
1.49      anton     498: 
                    499: : flush-a-tos { stack -- }
                    500:     stack stack-out @ 0<> stack stack-in @ 0= and
                    501:     if
                    502:        ." IF_" stack stack-pointer 2@ 2dup type ." TOS("
                    503:        2dup type ." [0] = " type ." TOS);" cr
                    504:     endif ;
1.1       anton     505: 
                    506: : flush-tos ( -- )
1.51      anton     507:     data-stack   flush-a-tos
                    508:     fp-stack     flush-a-tos
                    509:     return-stack flush-a-tos ;
1.49      anton     510: 
                    511: : fill-a-tos { stack -- }
                    512:     stack stack-out @ 0= stack stack-in @ 0<> and
                    513:     if
                    514:        ." IF_" stack stack-pointer 2@ 2dup type ." TOS("
                    515:        2dup type ." TOS = " type ." [0]);" cr
                    516:     endif ;
1.1       anton     517: 
                    518: : fill-tos ( -- )
1.53      anton     519:     \ !! inst-stream for prefetching?
1.51      anton     520:     fp-stack     fill-a-tos
                    521:     data-stack   fill-a-tos
                    522:     return-stack fill-a-tos ;
1.49      anton     523: 
                    524: : fetch ( addr -- )
1.72      anton     525:     dup item-type @ type-fetch @ execute ;
1.1       anton     526: 
                    527: : fetches ( -- )
1.69      anton     528:     prim prim-effect-in prim prim-effect-in-end @ ['] fetch map-items ;
1.49      anton     529: 
                    530: : stack-pointer-update { stack -- }
                    531:     \ stack grow downwards
                    532:     stack stack-in @ stack stack-out @ -
                    533:     ?dup-if \ this check is not necessary, gcc would do this for us
                    534:        stack stack-pointer 2@ type ."  += " 0 .r ." ;" cr
                    535:     endif ;
1.1       anton     536: 
1.55      anton     537: : inst-pointer-update ( -- )
                    538:     inst-stream stack-in @ ?dup-if
                    539:        ." INC_IP(" 0 .r ." );" cr
                    540:     endif ;
                    541: 
1.1       anton     542: : stack-pointer-updates ( -- )
1.55      anton     543:     inst-pointer-update
1.51      anton     544:     data-stack   stack-pointer-update
                    545:     fp-stack     stack-pointer-update
                    546:     return-stack stack-pointer-update ;
1.1       anton     547: 
                    548: : store ( item -- )
                    549: \ f is true if the item should be stored
                    550: \ f is false if the store is probably not necessary
1.49      anton     551:  dup item-type @ type-store @ execute ;
1.1       anton     552: 
                    553: : stores ( -- )
1.69      anton     554:     prim prim-effect-out prim prim-effect-out-end @ ['] store map-items ;
1.8       pazsan    555: 
1.52      anton     556: : output-c-tail ( -- )
                    557:     \ the final part of the generated C code
                    558:     ." NEXT_P1;" cr
                    559:     stores
                    560:     fill-tos
                    561:     ." NEXT_P2;" cr ;
                    562: 
                    563: : type-c ( c-addr u -- )
                    564:     \ like TYPE, but replaces "TAIL;" with tail code
                    565:     begin ( c-addr1 u1 )
                    566:        2dup s" TAIL;" search
                    567:     while ( c-addr1 u1 c-addr3 u3 )
                    568:        2dup 2>r drop nip over - type
                    569:        output-c-tail
                    570:        2r> 5 /string
                    571:        \ !! resync #line missing
                    572:     repeat
                    573:     2drop type ;
1.63      anton     574: 
                    575: : print-debug-arg { item -- }
                    576:     ." fputs(" quote space item item-name 2@ type ." =" quote ." , vm_out); "
                    577:     ." printarg_" item item-type @ print-type-prefix
                    578:     ." (" item item-name 2@ type ." );" cr ;
                    579:     
                    580: : print-debug-args ( -- )
                    581:     ." #ifdef VM_DEBUG" cr
                    582:     ." if (vm_debug) {" cr
1.69      anton     583:     prim prim-effect-in prim prim-effect-in-end @ ['] print-debug-arg map-items
1.63      anton     584:     ." fputc('\n', vm_out);" cr
                    585:     ." }" cr
                    586:     ." #endif" cr ;
1.72      anton     587: 
                    588: : print-entry ( -- )
                    589:     ." I_" prim prim-c-name 2@ type ." :" ;
1.63      anton     590:     
1.43      jwilke    591: : output-c ( -- ) 
1.72      anton     592:  print-entry ."  /* " prim prim-name 2@ type ."  ( " prim prim-stack-string 2@ type ." ) */" cr
1.69      anton     593:  ." /* " prim prim-doc 2@ type ."  */" cr
                    594:  ." NAME(" quote prim prim-name 2@ type quote ." )" cr \ debugging
1.1       anton     595:  ." {" cr
                    596:  ." DEF_CA" cr
1.66      anton     597:  print-declarations
1.13      anton     598:  ." NEXT_P0;" cr
                    599:  flush-tos
1.1       anton     600:  fetches
1.63      anton     601:  print-debug-args
1.13      anton     602:  stack-pointer-updates
1.1       anton     603:  ." {" cr
1.63      anton     604:  ." #line " c-line @ . quote c-filename 2@ type quote cr
1.69      anton     605:  prim prim-c-code 2@ type-c
1.1       anton     606:  ." }" cr
1.52      anton     607:  output-c-tail
1.1       anton     608:  ." }" cr
                    609:  cr
                    610: ;
                    611: 
1.56      anton     612: : disasm-arg { item -- }
                    613:     item item-stack @ inst-stream = if
1.63      anton     614:        ."   fputc(' ', vm_out); "
                    615:        ." printarg_" item item-type @ print-type-prefix
                    616:        ." ((" item item-type @ type-c-name 2@ type ." )"
                    617:        ." ip[" item item-offset @ 1+ 0 .r ." ]);" cr
1.56      anton     618:     endif ;
                    619: 
                    620: : disasm-args ( -- )
1.69      anton     621:     prim prim-effect-in prim prim-effect-in-end @ ['] disasm-arg map-items ;
1.56      anton     622: 
                    623: : output-disasm ( -- )
                    624:     \ generate code for disassembling VM instructions
                    625:     ." if (ip[0] == prim[" function-number @ 0 .r ." ]) {" cr
1.69      anton     626:     ."   fputs(" quote prim prim-name 2@ type quote ." , vm_out);" cr
1.56      anton     627:     disasm-args
                    628:     ."   ip += " inst-stream stack-in @ 1+ 0 .r ." ;" cr
1.68      anton     629:     ." } else " ;
1.56      anton     630: 
1.60      anton     631: : gen-arg-parm { item -- }
                    632:     item item-stack @ inst-stream = if
                    633:        ." , " item item-type @ type-c-name 2@ type space
                    634:        item item-name 2@ type
                    635:     endif ;
                    636: 
                    637: : gen-args-parm ( -- )
1.69      anton     638:     prim prim-effect-in prim prim-effect-in-end @ ['] gen-arg-parm map-items ;
1.60      anton     639: 
                    640: : gen-arg-gen { item -- }
                    641:     item item-stack @ inst-stream = if
                    642:        ."   genarg_" item item-type @ print-type-prefix
                    643:         ." (ctp, " item item-name 2@ type ." );" cr
                    644:     endif ;
                    645: 
                    646: : gen-args-gen ( -- )
1.69      anton     647:     prim prim-effect-in prim prim-effect-in-end @ ['] gen-arg-gen map-items ;
1.60      anton     648: 
                    649: : output-gen ( -- )
                    650:     \ generate C code for generating VM instructions
1.69      anton     651:     ." void gen_" prim prim-c-name 2@ type ." (Inst **ctp" gen-args-parm ." )" cr
1.60      anton     652:     ." {" cr
                    653:     ."   gen_inst(ctp, vm_prim[" function-number @ 0 .r ." ]);" cr
                    654:     gen-args-gen
1.68      anton     655:     ." }" cr ;
1.60      anton     656: 
1.49      anton     657: : stack-used? { stack -- f }
                    658:     stack stack-in @ stack stack-out @ or 0<> ;
1.44      jwilke    659: 
1.30      pazsan    660: : output-funclabel ( -- )
1.69      anton     661:   ." &I_" prim prim-c-name 2@ type ." ," cr ;
1.30      pazsan    662: 
                    663: : output-forthname ( -- )
1.69      anton     664:   '" emit prim prim-name 2@ type '" emit ." ," cr ;
1.30      pazsan    665: 
                    666: : output-c-func ( -- )
1.44      jwilke    667: \ used for word libraries
1.69      anton     668:     ." Cell * I_" prim prim-c-name 2@ type ." (Cell *SP, Cell **FP)      /* " prim prim-name 2@ type
                    669:     ."  ( " prim prim-stack-string 2@ type ."  ) */" cr
                    670:     ." /* " prim prim-doc 2@ type ."  */" cr
                    671:     ." NAME(" quote prim prim-name 2@ type quote ." )" cr
1.30      pazsan    672:     \ debugging
                    673:     ." {" cr
1.66      anton     674:     print-declarations
1.53      anton     675:     inst-stream  stack-used? IF ." Cell *ip=IP;" cr THEN
1.51      anton     676:     data-stack   stack-used? IF ." Cell *sp=SP;" cr THEN
                    677:     fp-stack     stack-used? IF ." Cell *fp=*FP;" cr THEN
                    678:     return-stack stack-used? IF ." Cell *rp=*RP;" cr THEN
1.30      pazsan    679:     flush-tos
                    680:     fetches
                    681:     stack-pointer-updates
1.49      anton     682:     fp-stack   stack-used? IF ." *FP=fp;" cr THEN
1.30      pazsan    683:     ." {" cr
1.63      anton     684:     ." #line " c-line @ . quote c-filename 2@ type quote cr
1.69      anton     685:     prim prim-c-code 2@ type
1.30      pazsan    686:     ." }" cr
                    687:     stores
                    688:     fill-tos
1.44      jwilke    689:     ." return (sp);" cr
1.30      pazsan    690:     ." }" cr
                    691:     cr ;
                    692: 
1.43      jwilke    693: : output-label ( -- )  
1.69      anton     694:     ." (Label)&&I_" prim prim-c-name 2@ type ." ," cr ;
1.1       anton     695: 
1.43      jwilke    696: : output-alias ( -- ) 
1.69      anton     697:     ( primitive-number @ . ." alias " ) ." Primitive " prim prim-name 2@ type cr ;
1.1       anton     698: 
1.43      jwilke    699: : output-forth ( -- )  
1.69      anton     700:     prim prim-forth-code @ 0=
1.30      pazsan    701:     IF         \ output-alias
1.28      jwilke    702:        \ this is bad for ec: an alias is compiled if tho word does not exist!
                    703:        \ JAW
1.69      anton     704:     ELSE  ." : " prim prim-name 2@ type ."   ( "
                    705:        prim prim-stack-string 2@ type ." )" cr
                    706:        prim prim-forth-code 2@ type cr
1.30      pazsan    707:     THEN ;
1.10      anton     708: 
1.17      anton     709: : output-tag-file ( -- )
                    710:     name-filename 2@ last-name-filename 2@ compare if
                    711:        name-filename 2@ last-name-filename 2!
                    712:        #ff emit cr
                    713:        name-filename 2@ type
                    714:        ." ,0" cr
                    715:     endif ;
                    716: 
                    717: : output-tag ( -- )
                    718:     output-tag-file
1.69      anton     719:     prim prim-name 2@ 1+ type
1.17      anton     720:     127 emit
1.69      anton     721:     space prim prim-name 2@ type space
1.17      anton     722:     1 emit
                    723:     name-line @ 0 .r
                    724:     ." ,0" cr ;
                    725: 
1.10      anton     726: [IFDEF] documentation
                    727: : register-doc ( -- )
                    728:     get-current documentation set-current
1.69      anton     729:     prim prim-name 2@ nextname create
                    730:     prim prim-name 2@ 2,
                    731:     prim prim-stack-string 2@ condition-stack-effect 2,
                    732:     prim prim-wordset 2@ 2,
                    733:     prim prim-c-name 2@ condition-pronounciation 2,
                    734:     prim prim-doc 2@ 2,
1.10      anton     735:     set-current ;
                    736: [THEN]
1.67      anton     737: 
                    738: 
1.69      anton     739: \ combining instructions
                    740: 
                    741: \ The input should look like this:
                    742: 
                    743: \ lit_+ = lit +
                    744: 
                    745: \ The output should look like this:
                    746: 
                    747: \  I_lit_+:
                    748: \  {
                    749: \  DEF_CA
                    750: \  Cell _x_ip0;
                    751: \  Cell _x_sp0;
                    752: \  Cell _x_sp1;
                    753: \  NEXT_P0;
                    754: \  _x_ip0 = (Cell) IPTOS;
                    755: \  _x_sp0 = (Cell) spTOS;
                    756: \  INC_IP(1);
                    757: \  /* sp += 0; */
                    758: \  /* lit ( #w -- w ) */
                    759: \  /*  */
                    760: \  NAME("lit")
                    761: \  {
                    762: \  Cell w;
                    763: \  w = (Cell) _x_ip0;
                    764: \  #ifdef VM_DEBUG
                    765: \  if (vm_debug) {
                    766: \  fputs(" w=", vm_out); printarg_w (w);
                    767: \  fputc('\n', vm_out);
                    768: \  }
                    769: \  #endif
                    770: \  {
                    771: \  #line 136 "./prim"
                    772: \  }
                    773: \  _x_sp1 = (Cell)w;
                    774: \  }
                    775: \  I_plus:     /* + ( n1 n2 -- n ) */
                    776: \  /*  */
                    777: \  NAME("+")
                    778: \  {
                    779: \  DEF_CA
                    780: \  Cell n1;
                    781: \  Cell n2;
                    782: \  Cell n;
                    783: \  NEXT_P0;
                    784: \  n1 = (Cell) _x_sp0;
                    785: \  n2 = (Cell) _x_sp1;
                    786: \  #ifdef VM_DEBUG
                    787: \  if (vm_debug) {
                    788: \  fputs(" n1=", vm_out); printarg_n (n1);
                    789: \  fputs(" n2=", vm_out); printarg_n (n2);
                    790: \  fputc('\n', vm_out);
                    791: \  }
                    792: \  #endif
                    793: \  {
                    794: \  #line 516 "./prim"
                    795: \  n = n1+n2;
                    796: \  }
                    797: \  NEXT_P1;
                    798: \  _x_sp0 = (Cell)n;
                    799: \  NEXT_P2;
                    800: \  }
                    801: \  NEXT_P1;
                    802: \  spTOS = (Cell)_x_sp0;
                    803: \  NEXT_P2;
                    804: 
1.71      anton     805: : init-combined ( -- )
1.79    ! anton     806:     prim to combined
1.71      anton     807:     0 num-combined !
                    808:     current-depth max-stacks cells erase
1.72      anton     809:     max-depth     max-stacks cells erase
                    810:     min-depth     max-stacks cells erase
                    811:     prim prim-effect-in  prim prim-effect-in-end  !
                    812:     prim prim-effect-out prim prim-effect-out-end ! ;
1.71      anton     813: 
                    814: : max! ( n addr -- )
                    815:     tuck @ max swap ! ;
                    816: 
1.72      anton     817: : min! ( n addr -- )
                    818:     tuck @ min swap ! ;
                    819: 
1.71      anton     820: : add-depths { p -- }
                    821:     \ combine stack effect of p with *-depths
                    822:     max-stacks 0 ?do
1.72      anton     823:        current-depth i th @
                    824:        p prim-stacks-in  i th @ +
                    825:        dup max-depth i th max!
                    826:        p prim-stacks-out i th @ -
                    827:        dup min-depth i th min!
                    828:        current-depth i th !
1.71      anton     829:     loop ;
                    830: 
                    831: : add-prim ( addr u -- )
                    832:     \ add primitive given by "addr u" to combined-prims
                    833:     primitives search-wordlist s" unknown primitive" ?print-error
                    834:     execute { p }
1.72      anton     835:     p combined-prims num-combined @ th !
1.71      anton     836:     1 num-combined +!
                    837:     p add-depths ;
                    838: 
                    839: : compute-effects { q -- }
                    840:     \ compute the stack effects of q from the depths
                    841:     max-stacks 0 ?do
1.72      anton     842:        max-depth i th @ dup
                    843:        q prim-stacks-in i th !
                    844:        current-depth i th @ -
                    845:        q prim-stacks-out i th !
                    846:     loop ;
                    847: 
                    848: : make-effect-items { stack# items effect-endp -- }
                    849:     \ effect-endp points to a pointer to the end of the current item-array
                    850:     \ and has to be updated
                    851:     stacks stack# th @ { stack }
                    852:     items 0 +do
                    853:        effect-endp @ { item }
                    854:        i 0 <# #s stack stack-pointer 2@ holds [char] _ hold #> save-mem
                    855:        item item-name 2!
                    856:        stack item item-stack !
1.74      anton     857:        stack stack-type @ item item-type !
1.72      anton     858:        i item item-offset !
                    859:        item item-first on
                    860:        item% %size effect-endp +!
                    861:     loop ;
                    862: 
                    863: : init-effects { q -- }
                    864:     \ initialize effects field for FETCHES and STORES
                    865:     max-stacks 0 ?do
                    866:        i q prim-stacks-in  i th @ q prim-effect-in-end  make-effect-items
                    867:        i q prim-stacks-out i th @ q prim-effect-out-end make-effect-items
1.71      anton     868:     loop ;
                    869: 
                    870: : process-combined ( -- )
1.72      anton     871:     prim compute-effects
                    872:     prim init-effects
                    873:     output-combined perform ;
                    874: 
                    875: \ C output
                    876: 
                    877: : print-item { n stack -- }
                    878:     \ print nth stack item name
1.79    ! anton     879:     stack stack-type @ type-c-name 2@ type space
        !           880:     ." _" stack stack-pointer 2@ type n 0 .r ;
1.72      anton     881: 
                    882: : print-declarations-combined ( -- )
                    883:     max-stacks 0 ?do
                    884:        max-depth i th @ min-depth i th @ - 0 +do
                    885:            i stacks j th @ print-item ." ;" cr
                    886:        loop
                    887:     loop ;
1.79    ! anton     888: 
        !           889: : part-fetches ( -- )
        !           890:     fetches ;
        !           891: 
        !           892: : part-output-c-tail ( -- )
        !           893:     output-c-tail ;
        !           894: 
        !           895: : output-part ( p -- )
        !           896:     to prim
        !           897:     ." /* " prim prim-name 2@ type ."  ( " prim prim-stack-string 2@ type ." ) */" cr
        !           898:     ." NAME(" quote prim prim-name 2@ type quote ." )" cr \ debugging
        !           899:     ." {" cr
        !           900:     print-declarations
        !           901:     part-fetches
        !           902:     print-debug-args
        !           903:     prim add-depths \ !! right place?
        !           904:     ." {" cr
        !           905:     ." #line " c-line @ . quote c-filename 2@ type quote cr
        !           906:     prim prim-c-code 2@ type-c \ !! deal with TAIL
        !           907:     ." }" cr
        !           908:     part-output-c-tail
        !           909:     ." }" cr ;
        !           910: 
1.74      anton     911: : output-parts ( -- )
1.79    ! anton     912:     prim >r in-part on
        !           913:     current-depth max-stacks cells erase
1.74      anton     914:     num-combined @ 0 +do
1.79    ! anton     915:        combined-prims i th @ output-part
1.74      anton     916:     loop
1.79    ! anton     917:     in-part off
1.74      anton     918:     r> to prim ;
                    919: 
1.72      anton     920: : output-c-combined ( -- )
                    921:     print-entry cr
1.74      anton     922:     \ debugging messages just in parts
1.72      anton     923:     ." {" cr
                    924:     ." DEF_CA" cr
                    925:     print-declarations-combined
                    926:     ." NEXT_P0;" cr
                    927:     flush-tos
                    928:     fetches
1.74      anton     929:     \ print-debug-args
                    930:     stack-pointer-updates
                    931:     output-parts
                    932:     output-c-tail
                    933:     ." }" cr
                    934:     cr ;
1.72      anton     935: 
                    936: : output-forth-combined ( -- )
                    937:     ;
1.69      anton     938: 
1.67      anton     939: \ the parser
                    940: 
                    941: eof-char max-member \ the whole character set + EOF
                    942: 
                    943: : getinput ( -- n )
                    944:  rawinput @ endrawinput @ =
                    945:  if
                    946:    eof-char
                    947:  else
                    948:    cookedinput @ c@
                    949:  endif ;
                    950: 
                    951: :noname ( n -- )
                    952:  dup bl > if
                    953:   emit space
                    954:  else
                    955:   .
                    956:  endif ;
                    957: print-token !
                    958: 
                    959: : testchar? ( set -- f )
                    960:  getinput member? ;
                    961: ' testchar? test-vector !
                    962: 
                    963: : checksyncline ( -- )
                    964:     \ when input points to a newline, check if the next line is a
                    965:     \ sync line.  If it is, perform the appropriate actions.
                    966:     rawinput @ >r
                    967:     s" #line " r@ over compare 0<> if
                    968:        rdrop 1 line +! EXIT
                    969:     endif
                    970:     0. r> 6 chars + 20 >number drop >r drop line ! r> ( c-addr )
                    971:     dup c@ bl = if
                    972:        char+ dup c@ [char] " <> abort" sync line syntax"
                    973:        char+ dup 100 [char] " scan drop swap 2dup - save-mem filename 2!
                    974:        char+
                    975:     endif
                    976:     dup c@ nl-char <> abort" sync line syntax"
                    977:     skipsynclines @ if
                    978:        dup char+ rawinput !
                    979:        rawinput @ c@ cookedinput @ c!
                    980:     endif
                    981:     drop ;
                    982: 
                    983: : ?nextchar ( f -- )
1.71      anton     984:     s" syntax error, wrong char" ?print-error
1.67      anton     985:     rawinput @ endrawinput @ <> if
                    986:        rawinput @ c@
                    987:        1 chars rawinput +!
                    988:        1 chars cookedinput +!
                    989:        nl-char = if
                    990:            checksyncline
                    991:            rawinput @ line-start !
                    992:        endif
                    993:        rawinput @ c@ cookedinput @ c!
                    994:     endif ;
                    995: 
                    996: : charclass ( set "name" -- )
                    997:  ['] ?nextchar terminal ;
                    998: 
                    999: : .. ( c1 c2 -- set )
                   1000:  ( creates a set that includes the characters c, c1<=c<=c2 )
                   1001:  empty copy-set
                   1002:  swap 1+ rot do
                   1003:   i over add-member
                   1004:  loop ;
                   1005: 
                   1006: : ` ( -- terminal ) ( use: ` c )
                   1007:  ( creates anonymous terminal for the character c )
                   1008:  char singleton ['] ?nextchar make-terminal ;
                   1009: 
                   1010: char a char z ..  char A char Z ..  union char _ singleton union  charclass letter
                   1011: char 0 char 9 ..                                       charclass digit
                   1012: bl singleton tab-char over add-member                  charclass white
                   1013: nl-char singleton eof-char over add-member complement  charclass nonl
                   1014: nl-char singleton eof-char over add-member
                   1015:     char : over add-member complement                   charclass nocolonnl
                   1016: bl 1+ maxchar .. char \ singleton complement intersection
                   1017:                                                         charclass nowhitebq
                   1018: bl 1+ maxchar ..                                        charclass nowhite
                   1019: char " singleton eof-char over add-member complement   charclass noquote
                   1020: nl-char singleton                                      charclass nl
                   1021: eof-char singleton                                     charclass eof
1.79    ! anton    1022: nl-char singleton eof-char over add-member             charclass nleof
1.67      anton    1023: 
                   1024: (( letter (( letter || digit )) **
                   1025: )) <- c-ident ( -- )
                   1026: 
                   1027: (( ` # ?? (( letter || digit || ` : )) **
                   1028: )) <- stack-ident ( -- )
                   1029: 
                   1030: (( nowhitebq nowhite ** ))
                   1031: <- forth-ident ( -- )
                   1032: 
                   1033: Variable forth-flag
                   1034: Variable c-flag
                   1035: 
                   1036: (( (( ` e || ` E )) {{ start }} nonl ** 
                   1037:    {{ end evaluate }}
                   1038: )) <- eval-comment ( ... -- ... )
                   1039: 
                   1040: (( (( ` f || ` F )) {{ start }} nonl ** 
                   1041:    {{ end forth-flag @ IF type cr ELSE 2drop THEN }}
                   1042: )) <- forth-comment ( -- )
                   1043: 
                   1044: (( (( ` c || ` C )) {{ start }} nonl ** 
                   1045:    {{ end c-flag @ IF type cr ELSE 2drop THEN }}
                   1046: )) <- c-comment ( -- )
                   1047: 
                   1048: (( ` - nonl ** {{ 
                   1049:        forth-flag @ IF ." [ELSE]" cr THEN
                   1050:        c-flag @ IF ." #else" cr THEN }}
                   1051: )) <- else-comment
                   1052: 
                   1053: (( ` + {{ start }} nonl ** {{ end
                   1054:        dup
                   1055:        IF      c-flag @
                   1056:                IF    ." #ifdef HAS_" bounds ?DO  I c@ toupper emit  LOOP cr
                   1057:                THEN
                   1058:                forth-flag @
                   1059:                IF  ." has? " type ."  [IF]"  cr THEN
                   1060:        ELSE    2drop
                   1061:            c-flag @      IF  ." #endif"  cr THEN
                   1062:            forth-flag @  IF  ." [THEN]"  cr THEN
                   1063:        THEN }}
                   1064: )) <- if-comment
                   1065: 
                   1066: (( (( eval-comment || forth-comment || c-comment || else-comment || if-comment )) ?? nonl ** )) <- comment-body
                   1067: 
1.79    ! anton    1068: (( ` \ comment-body nleof )) <- comment ( -- )
1.67      anton    1069: 
                   1070: (( {{ start }} stack-ident {{ end 2 pick init-item item% %size + }} white ** )) **
                   1071: <- stack-items
                   1072: 
1.69      anton    1073: (( {{ prim prim-effect-in }}  stack-items {{ prim prim-effect-in-end ! }}
1.67      anton    1074:    ` - ` - white **
1.69      anton    1075:    {{ prim prim-effect-out }} stack-items {{ prim prim-effect-out-end ! }}
1.67      anton    1076: )) <- stack-effect ( -- )
                   1077: 
1.71      anton    1078: (( {{ prim create-prim }}
1.69      anton    1079:    ` ( white ** {{ start }} stack-effect {{ end prim prim-stack-string 2! }} ` ) white **
                   1080:    (( {{ start }} forth-ident {{ end prim prim-wordset 2! }} white **
                   1081:       (( {{ start }}  c-ident {{ end prim prim-c-name 2! }} )) ??
1.79    ! anton    1082:    )) ??  nleof
        !          1083:    (( ` " ` "  {{ start }} (( noquote ++ ` " )) ++ {{ end 1- prim prim-doc 2! }} ` " white ** nleof )) ??
        !          1084:    {{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl **  nleof white ** )) ** {{ end prim prim-c-code 2! skipsynclines on }}
        !          1085:    (( ` :  white ** nleof
        !          1086:       {{ start }} (( nonl ++  nleof white ** )) ++ {{ end prim prim-forth-code 2! }}
1.68      anton    1087:    )) ?? {{  declarations compute-offsets printprim 1 function-number +! }}
1.79    ! anton    1088:    nleof
1.69      anton    1089: )) <- simple-primitive ( -- )
                   1090: 
1.71      anton    1091: (( {{ init-combined }}
                   1092:    ` = (( white ++ {{ start }} forth-ident {{ end add-prim }} )) ++
1.79    ! anton    1093:    nleof {{ process-combined }}
1.69      anton    1094: )) <- combined-primitive
                   1095: 
1.79    ! anton    1096: (( {{ make-prim to prim 0 to combined
1.69      anton    1097:       line @ name-line ! filename 2@ name-filename 2!
                   1098:       start }} forth-ident {{ end 2dup prim prim-name 2! prim prim-c-name 2! }}  white ++
                   1099:    (( simple-primitive || combined-primitive ))
1.67      anton    1100: )) <- primitive ( -- )
                   1101: 
                   1102: (( (( comment || primitive || nl white ** )) ** eof ))
                   1103: parser primitives2something
                   1104: warnings @ [IF]
                   1105: .( parser generated ok ) cr
                   1106: [THEN]
                   1107: 
1.69      anton    1108: : primfilter ( addr u -- )
                   1109:     \ process the string at addr u
                   1110:     over dup rawinput ! dup line-start ! cookedinput !
                   1111:     + endrawinput !
                   1112:     checksyncline
                   1113:     primitives2something ;    
1.8       pazsan   1114: 
1.72      anton    1115: : process-file ( addr u xt-simple x-combined -- )
                   1116:     output-combined ! output !
1.61      anton    1117:     save-mem 2dup filename 2!
1.69      anton    1118:     slurp-file
1.17      anton    1119:     warnings @ if
                   1120:        ." ------------ CUT HERE -------------" cr  endif
1.69      anton    1121:     primfilter ;
1.30      pazsan   1122: 
1.72      anton    1123: \  : process      ( xt -- )
                   1124: \      bl word count rot
                   1125: \      process-file ;

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