[gforth] / gforth / prims2x.fs  

gforth: gforth/prims2x.fs

Diff for /gforth/prims2x.fs between version 1.33 and 1.48

version 1.33, Sun Oct 25 23:15:46 1998 UTC version 1.48, Sat Sep 23 15:46:58 2000 UTC
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 \ converts primitives to, e.g., C code  \ converts primitives to, e.g., C code
   
 \ Copyright (C) 1995 Free Software Foundation, Inc.  \ Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
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 \ 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.
   
   
 \ This is not very nice (hard limits, no checking, assumes 1 chars = 1)  \ This is not very nice (hard limits, no checking, assumes 1 chars = 1)
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 warnings off  warnings off
   
 require search.fs  [IFUNDEF] vocabulary    \ we are executed just with kernel image
 require extend.fs                          \ load the rest that is needed
                           \ (require fails because this file is needed from a
                           \ different directory with the wordlibraries)
   include ./search.fs
   include ./extend.fs
   [THEN]
   
   [IFUNDEF] environment?
   include ./environ.fs
   [THEN]
   
 \ require interpretation.fs  include ./gray.fs
 \ require debugs.fs  
 [IFUNDEF] vocabulary    include search.fs [THEN]  
 [IFUNDEF] environment?  include environ.fs      [THEN]  
 include gray.fs  
   
 100 constant max-effect \ number of things on one side of a stack effect  100 constant max-effect \ number of things on one side of a stack effect
 255 constant maxchar  255 constant maxchar
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 #tab constant tab-char  #tab constant tab-char
 #lf constant nl-char  #lf constant nl-char
   
 : read-whole-file ( c-addr1 file-id -- c-addr2 )  
 \ reads the contents of the file file-id puts it into memory at c-addr1  
 \ c-addr2 is the first address after the file block  
   >r dup $7fffffff r> read-file throw + ;  
   
 variable rawinput \ pointer to next character to be scanned  variable rawinput \ pointer to next character to be scanned
 variable endrawinput \ pointer to the end of the input (the char after the last)  variable endrawinput \ pointer to the end of the input (the char after the last)
 variable cookedinput \ pointer to the next char to be parsed  variable cookedinput \ pointer to the next char to be parsed
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 variable skipsynclines \ are sync lines ("#line ...") invisible to the parser?  variable skipsynclines \ are sync lines ("#line ...") invisible to the parser?
 skipsynclines on  skipsynclines on
   
 Variable flush-comment flush-comment off  
   
 : ?flush-comment  
  flush-comment @ 0= ?EXIT  
  f-comment 2@ nip  
  IF  cr f-comment 2@ 2 /string type 0 0 f-comment 2! THEN ;  
   
 : start ( -- addr )  : start ( -- addr )
  cookedinput @ ;   cookedinput @ ;
   
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 char a char z ..  char A char Z ..  union char _ singleton union  charclass letter  char a char z ..  char A char Z ..  union char _ singleton union  charclass letter
 char 0 char 9 ..                                        charclass digit  char 0 char 9 ..                                        charclass digit
 bl singleton                                            charclass blank  bl singleton tab-char over add-member                   charclass white
 tab-char singleton                                      charclass tab  
 nl-char singleton eof-char over add-member complement   charclass nonl  nl-char singleton eof-char over add-member complement   charclass nonl
 nl-char singleton eof-char over add-member char : over add-member complement  charclass nocolonnl  nl-char singleton eof-char over add-member
       char : over add-member complement                   charclass nocolonnl
   bl 1+ maxchar .. char \ singleton complement intersection
                                                           charclass nowhitebq
 bl 1+ maxchar ..                                        charclass nowhite  bl 1+ maxchar ..                                        charclass nowhite
 char " singleton eof-char over add-member complement    charclass noquote  char " singleton eof-char over add-member complement    charclass noquote
 nl-char singleton                                       charclass nl  nl-char singleton                                       charclass nl
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 (( letter (( letter || digit )) **  (( letter (( letter || digit )) **
 )) <- c-name ( -- )  )) <- c-name ( -- )
   
 nowhite ++  (( nowhitebq nowhite ** ))
 <- name ( -- )  <- name ( -- )
   
 (( {{ ?flush-comment start }} ` \ nonl ** nl {{ end  Variable forth-flag
       2dup 2 min s" \+" compare 0= IF  f-comment 2!  ELSE  2drop  THEN }}  Variable c-flag
 )) <- comment ( -- )  
   (( (( ` f || ` F )) {{ start }} nonl **
 (( {{ effect-in }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} blank ** )) ** {{ effect-in-end ! }}     {{ end forth-flag @ IF type cr ELSE 2drop THEN }}
    ` - ` - blank **  )) <- forth-comment ( -- )
    {{ effect-out }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} blank ** )) ** {{ effect-out-end ! }}  
   (( (( ` c || ` C )) {{ start }} nonl **
      {{ end c-flag @ IF type cr ELSE 2drop THEN }}
   )) <- c-comment ( -- )
   
   (( ` - nonl ** {{
           forth-flag @ IF ." [ELSE]" cr THEN
           c-flag @ IF ." #else" cr THEN }}
   )) <- else-comment
   
   (( ` + {{ start }} nonl ** {{ end
           dup
           IF      c-flag @
                   IF    ." #ifdef HAS_" bounds ?DO  I c@ toupper emit  LOOP cr
                   THEN
                   forth-flag @
                   IF  ." has? " type ."  [IF]"  cr THEN
           ELSE    2drop
               c-flag @      IF  ." #endif"  cr THEN
               forth-flag @  IF  ." [THEN]"  cr THEN
           THEN }}
   )) <- if-comment
   
   (( (( forth-comment || c-comment || else-comment || if-comment )) ?? nonl ** )) <- comment-body
   
   (( ` \ comment-body nl )) <- comment ( -- )
   
   (( {{ effect-in }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} white ** )) ** {{ effect-in-end ! }}
      ` - ` - white **
      {{ effect-out }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} white ** )) ** {{ effect-out-end ! }}
 )) <- stack-effect ( -- )  )) <- stack-effect ( -- )
   
 (( {{ s" " doc 2! s" " forth-code 2! }}  (( {{ s" " doc 2! s" " forth-code 2! }}
    (( comment || nl )) **  
    (( {{ line @ name-line ! filename 2@ name-filename 2! }}     (( {{ line @ name-line ! filename 2@ name-filename 2! }}
       {{ start }} name {{ end 2dup forth-name 2! c-name 2! }}  tab ++        {{ start }} name {{ end 2dup forth-name 2! c-name 2! }}  white ++
       {{ start }} stack-effect {{ end stack-string 2! }} tab ++        ` ( white ** {{ start }} stack-effect {{ end stack-string 2! }} ` ) white **
         {{ start }} name {{ end wordset 2! }} tab **          {{ start }} name {{ end wordset 2! }} white **
         (( {{ start }}  c-name {{ end c-name 2! }} )) ??  nl          (( {{ start }}  c-name {{ end c-name 2! }} )) ??  nl
    ))     ))
    (( ` " ` "  {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " nl )) ??     (( ` " ` "  {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " nl )) ??
    {{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl **  nl )) ** {{ end c-code 2! skipsynclines on }}     {{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl **  nl )) ** {{ end c-code 2! skipsynclines on }}
    (( ` :  nl     (( ` :  nl
       {{ start }} (( nonl ++  nl )) ++ {{ end forth-code 2! }}        {{ start }} (( nonl ++  nl )) ++ {{ end forth-code 2! }}
    )) ??     )) ?? {{ printprim }}
    (( nl || eof ))     (( nl || eof ))
 )) <- primitive ( -- )  )) <- primitive ( -- )
   
 (( (( primitive {{ printprim }} )) **  eof ))  (( (( comment || primitive || nl )) ** eof ))
 parser primitives2something  parser primitives2something
 warnings @ [IF]  warnings @ [IF]
 .( parser generated ok ) cr  .( parser generated ok ) cr
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 \ fileid is for the input file, xt ( -- ) is for the output word  \ fileid is for the input file, xt ( -- ) is for the output word
  output !   output !
  here dup rawinput ! cookedinput !   here dup rawinput ! cookedinput !
  here swap read-whole-file   here unused rot read-file throw
  dup endrawinput !   dup here + endrawinput !
  here - allot   allot
  align   align
  checksyncline   checksyncline
 \ begin  \ begin
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  cr   cr
 ;  ;
   
   : dstack-used?
     effect-in-size 2@ drop
     effect-out-size 2@ drop max 0<> ;
   
   : fstack-used?
     effect-in-size 2@ nip
     effect-out-size 2@ nip max 0<> ;
   
 : output-funclabel ( -- )  : output-funclabel ( -- )
   1 function-number +!    1 function-number +!
   ." &I_" c-name 2@ type ." ," cr ;    ." &I_" c-name 2@ type ." ," cr ;
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   '" emit forth-name 2@ type '" emit ." ," cr ;    '" emit forth-name 2@ type '" emit ." ," cr ;
   
 : output-c-func ( -- )  : output-c-func ( -- )
   \ used for word libraries
     1 function-number +!      1 function-number +!
     ." void I_" c-name 2@ type ." ()      /* " forth-name 2@ type      ." Cell * I_" c-name 2@ type ." (Cell *SP, Cell **FP)      /* " forth-name 2@ type
     ."  ( " stack-string 2@ type ."  ) */" cr      ."  ( " stack-string 2@ type ."  ) */" cr
     ." /* " doc 2@ type ."  */" cr      ." /* " doc 2@ type ."  */" cr
     ." NAME(" [char] " emit forth-name 2@ type [char] " emit ." )" cr      ." NAME(" [char] " emit forth-name 2@ type [char] " emit ." )" cr
     \ debugging      \ debugging
     ." {" cr      ." {" cr
     ." DEF_CA" cr  
     declarations      declarations
     compute-offsets \ for everything else      compute-offsets \ for everything else
     ." NEXT_P0;" cr      dstack-used? IF ." Cell *sp=SP;" cr THEN
       fstack-used? IF ." Cell *fp=*FP;" cr THEN
     flush-tos      flush-tos
     fetches      fetches
     stack-pointer-updates      stack-pointer-updates
       fstack-used? IF ." *FP=fp;" cr THEN
     ." {" cr      ." {" cr
     ." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr      ." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr
     c-code 2@ type      c-code 2@ type
     ." }" cr      ." }" cr
     ." NEXT_P1;" cr  
     stores      stores
     fill-tos      fill-tos
     ." NEXT_P2;" cr      ." return (sp);" cr
     ." }" cr      ." }" cr
     cr ;      cr ;
   
 : output-label ( -- )  : output-label ( -- )
     ." (Label)&&I_" c-name 2@ type ." ," cr ;      ." (Label)&&I_" c-name 2@ type ." ," cr
       -1 primitive-number +! ;
   
 : output-alias ( -- )  flush-comment on  : output-alias ( -- )
  ?flush-comment      ( primitive-number @ . ." alias " ) ." Primitive " forth-name 2@ type cr
  primitive-number @ . ." alias " forth-name 2@ type cr  
  -1 primitive-number +! ;   -1 primitive-number +! ;
   
 : output-forth ( -- )  flush-comment on  : output-forth ( -- )
     ?flush-comment  
     forth-code @ 0=      forth-code @ 0=
     IF          \ output-alias      IF          \ output-alias
         \ this is bad for ec: an alias is compiled if tho word does not exist!          \ this is bad for ec: an alias is compiled if tho word does not exist!
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 : process      ( xt -- )  : process      ( xt -- )
     bl word count rot      bl word count rot
     process-file ;      process-file ;
   

Generate output suitable for use with a patch program
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Removed from v.1.33  
changed lines
  Added in v.1.48
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