Diff for /gforth/cross.fs between versions 1.71 and 1.75

version 1.71, 1999/02/22 18:27:22 version 1.75, 1999/05/10 13:57:37
Line 58  Warnings off Line 58  Warnings off
         \ we have to set current to be topmost context wordlist          \ we have to set current to be topmost context wordlist
         get-order get-order get-current swap 1+ set-order          get-order get-order get-current swap 1+ set-order
         r> ['] to execute          r> ['] to execute
         set-order order          set-order
   ELSE Value THEN ;    ELSE Value THEN ;
   
 : DefaultValue ( n -- <name> )  : DefaultValue ( n -- <name> )
Line 118  also forth definitions  \ these values m Line 118  also forth definitions  \ these values m
 false DefaultValue stack-warn            \ check on empty stack at any definition  false DefaultValue stack-warn            \ check on empty stack at any definition
 false DefaultValue create-forward-warn   \ warn on forward declaration of created words  false DefaultValue create-forward-warn   \ warn on forward declaration of created words
   
 [IFUNDEF] DebugMaskSrouce Variable DebugMaskSource 0 DebugMaskSource ! [THEN]  
 [IFUNDEF] DebugMaskCross  Variable DebugMaskCross  0 DebugMaskCross  ! [THEN]  
     
   
 previous >CROSS  previous >CROSS
   
Line 143  stack-warn [IF] Line 144  stack-warn [IF]
 : defempty? ; immediate  : defempty? ; immediate
 [THEN]  [THEN]
   
   \ debugging
   
   0 [IF]
   
   This implements debugflags for the cross compiler and the compiled
   images. It works identical to the has-flags in the environment.
   The debugflags are defined in a vocabluary. If the word exists and
   its value is true, the flag is switched on.
   
   [THEN]
   
   Vocabulary debugflags   \ debug flags for cross
   also debugflags get-order over
   Constant debugflags-wl
   set-order previous
   
   : DebugFlag
     get-current >r debugflags-wl set-current
     SetValue
     r> set-current ;
   
   : Debug? ( adr u -- flag )
   \G return true if debug flag is defined or switched on
     debugflags-wl search-wordlist
     IF EXECUTE
     ELSE false THEN ;
   
   : D? ( <name> -- flag )
   \G return true if debug flag is defined or switched on
   \G while compiling we do not return the current value but
     bl word count debug? ;
   
   : [d?]
   \G compile the value-xt so the debug flag can be switched
   \G the flag must exist!
     bl word count debugflags-wl search-wordlist
     IF    compile,
     ELSE  -1 ABORT" unknown debug flag"
           \ POSTPONE false 
     THEN ; immediate
   
 \ \ GhostNames Ghosts                                  9may93jaw  \ \ GhostNames Ghosts                                  9may93jaw
   
Line 171  VARIABLE VocTemp Line 211  VARIABLE VocTemp
 hex  hex
 4711 Constant <fwd>             4712 Constant <res>  4711 Constant <fwd>             4712 Constant <res>
 4713 Constant <imm>             4714 Constant <do:>  4713 Constant <imm>             4714 Constant <do:>
   4715 Constant <skip>
   
 \ iForth makes only immediate directly after create  \ iForth makes only immediate directly after create
 \ make atonce trick! ?  \ make atonce trick! ?
Line 240  VARIABLE Already Line 281  VARIABLE Already
 : forward? ( ghost -- flag )  : forward? ( ghost -- flag )
   >magic @ <fwd> = ;    >magic @ <fwd> = ;
   
   : undefined? ( ghost -- flag )
     >magic @ dup <fwd> = swap <skip> = or ;
   
 \ Predefined ghosts                                    12dec92py  \ Predefined ghosts                                    12dec92py
   
 ghost 0=                                        drop  ghost 0=                                        drop
Line 281  VARIABLE env-current \ save information Line 325  VARIABLE env-current \ save information
 : has?  bl word count T environment? H   : has?  bl word count T environment? H 
         IF      \ environment variable is present, return its value          IF      \ environment variable is present, return its value
         ELSE    \ environment variable is not present, return false          ELSE    \ environment variable is not present, return false
                 \ !! JAW abort is just for testing                  false \ debug true ABORT" arg" 
                 false true ABORT" arg"   
         THEN ;          THEN ;
   
 : $has? T environment? H IF ELSE false THEN ;  : $has? T environment? H IF ELSE false THEN ;
Line 315  false DefaultValue header Line 358  false DefaultValue header
 true DefaultValue interpreter  true DefaultValue interpreter
 true DefaultValue ITC  true DefaultValue ITC
 false DefaultValue rom  false DefaultValue rom
   true DefaultValue standardthreading
   
 >TARGET  >TARGET
 s" relocate" T environment? H   s" relocate" T environment? H 
Line 377  Variable bit$ Line 421  Variable bit$
 Variable headers-named 0 headers-named !  Variable headers-named 0 headers-named !
 Variable user-vars 0 user-vars !  Variable user-vars 0 user-vars !
   
 \ Memory initialisation                                05dec92py  
   
 [IFDEF] Memory \ Memory is a bigFORTH feature  
    also Memory  
    : initmem ( var len -- )  
      2dup swap handle! >r @ r> erase ;  
    toss  
 [ELSE]  
    : initmem ( var len -- )  
      tuck allocate abort" CROSS: No memory for target"  
      ( len var adr ) dup rot !  
      ( len adr ) swap erase ;  
 [THEN]  
   
 \ MakeKernal                                           12dec92py  
   
 : makekernel ( targetsize -- targetsize )  
   bit$  over 1- tcell>bit rshift 1+ initmem  
   image over initmem ;  
   
 >MINIMAL  
 : makekernel makekernel ;  
 >CROSS  
   
 : target>bitmask-size ( u1 -- u2 )  : target>bitmask-size ( u1 -- u2 )
   1- tcell>bit rshift 1+ ;    1- tcell>bit rshift 1+ ;
   
Line 408  Variable user-vars 0 user-vars ! Line 428  Variable user-vars 0 user-vars !
   dup allocate ABORT" CROSS: No memory for target"    dup allocate ABORT" CROSS: No memory for target"
   swap over swap erase ;    swap over swap erase ;
   
   
   
 \ \ memregion.fs  \ \ memregion.fs
   
   
Line 515  T has? rom H Line 533  T has? rom H
 : setup-target ( -- )   \G initialize targets memory space  : setup-target ( -- )   \G initialize targets memory space
   s" rom" T $has? H    s" rom" T $has? H
   IF  \ check for ram and rom...    IF  \ check for ram and rom...
       address-space area nip 0<>        \ address-space area nip 0<>
       ram-dictionary area nip 0<>        ram-dictionary area nip 0<>
       rom-dictionary area nip 0<>        rom-dictionary area nip 0<>
       and and 0=        and 0=
       ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"        ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
   THEN    THEN
   address-space area nip    address-space area nip
Line 543  T has? rom H Line 561  T has? rom H
                 r@ >rmem !                  r@ >rmem !
   
                 target>bitmask-size allocatetarget                  target>bitmask-size allocatetarget
                 dup                  dup bit$ !
                 bit$ !  
                 r> >rbm !                  r> >rbm !
   
         ELSE    r> drop THEN          ELSE    r> drop THEN
    REPEAT ;     REPEAT drop ;
   
   \ MakeKernal                                                    22feb99jaw
   
   : makekernel ( targetsize -- targetsize )
     dup dictionary >rlen ! setup-target ;
   
   >MINIMAL
   : makekernel makekernel ;
   >CROSS
   
 \ \ switched tdp for rom support                                03jun97jaw  \ \ switched tdp for rom support                                03jun97jaw
   
Line 765  T has? relocate H Line 791  T has? relocate H
 \ \ Load Assembler  \ \ Load Assembler
   
 >TARGET  >TARGET
 H also Forth definitions \ ." asm: " order  H also Forth definitions
   
 : X     also target bl word find  : X     also target bl word find
         IF      state @ IF compile,          IF      state @ IF compile,
Line 883  Create NoFile ," #load-file#" Line 909  Create NoFile ," #load-file#"
         REPEAT          REPEAT
         2drop drop false ;                2drop drop false ;      
   
   false DebugFlag showincludedfiles
   
 : included   : included 
 \       cr ." Including: " 2dup type ." ..."          [d?] showincludedfiles
           IF      cr ." Including: " 2dup type ." ..." THEN
         FileMem >r          FileMem >r
         2dup add-included-file included           2dup add-included-file included 
         r> to FileMem ;          r> to FileMem ;
Line 987  Exists-Warnings on Line 1016  Exists-Warnings on
 \G resolve referencies to ghost with tcfa  \G resolve referencies to ghost with tcfa
     \ is ghost resolved?, second resolve means another definition with the      \ is ghost resolved?, second resolve means another definition with the
     \ same name      \ same name
     over forward? 0= IF  exists EXIT THEN      over undefined? 0= IF  exists EXIT THEN
     \ get linked-list      \ get linked-list
     swap >r r@ >link @ swap \ ( list tcfa R: ghost )      swap >r r@ >link @ swap \ ( list tcfa R: ghost )
     \ mark ghost as resolved      \ mark ghost as resolved
Line 1164  Create tag-bof 1 c,  0C c, Line 1193  Create tag-bof 1 c,  0C c,
   
 Defer skip? ' false IS skip?  Defer skip? ' false IS skip?
   
   : skipdef ( <name> -- )
   \G skip definition of an undefined word in undef-words mode
       ghost dup forward?
       IF  >magic <skip> swap !
       ELSE drop THEN ;
   
 : defined? ( -- flag ) \ name  : defined? ( -- flag ) \ name
       ghost undefined? 0= ;
   
   : defined2? ( -- flag ) \ name
   \G return true for anything else than forward, even for <skip>
   \G that's what we want
     ghost forward? 0= ;      ghost forward? 0= ;
   
 : needed? ( -- flag ) \ name  : needed? ( -- flag ) \ name
Line 1173  Defer skip? ' false IS skip? Line 1213  Defer skip? ' false IS skip?
 \G a forward reference exists  \G a forward reference exists
 \G so the definition is not skipped!  \G so the definition is not skipped!
     bl word gfind      bl word gfind
     IF dup forward?      IF dup undefined?
         nip          nip
         0=          0=
     ELSE  drop true  THEN ;      ELSE  drop true  THEN ;
Line 1306  Comment (       Comment \ Line 1346  Comment (       Comment \
   THEN ; immediate    THEN ; immediate
   
 : ghost>cfa  : ghost>cfa
   dup forward? ABORT" CROSS: forward " >link @ ;    dup undefined? ABORT" CROSS: forward " >link @ ;
                                 
 >TARGET  >TARGET
   
Line 1540  Cond: DOES> restrict? Line 1580  Cond: DOES> restrict?
   
 : gdoes,  ( ghost -- )  : gdoes,  ( ghost -- )
 \ makes the codefield for a word that is built  \ makes the codefield for a word that is built
   >end @ dup forward? 0=    >end @ dup undefined? 0=
   IF    IF
         dup >magic @ <do:> =          dup >magic @ <do:> =
         IF       doer,           IF       doer, 
Line 2037  Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond Line 2077  Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
   
 also minimal  also minimal
   
 \G doesn't skip line when bit is set in debugmask  : d? d? ;
 : \D name evaluate debugmasksource @ and 0= IF postpone \ THEN ;  
   \G doesn't skip line when debug switch is on
   : \D D? 0= IF postpone \ THEN ;
   
 \G interprets the line if word is not defined  \G interprets the line if word is not defined
 : \- defined? IF postpone \ THEN ;  : \- defined? IF postpone \ THEN ;
Line 2162  previous Line 2204  previous
   
 : all-words    ['] false    IS skip? ;  : all-words    ['] false    IS skip? ;
 : needed-words ['] needed?  IS skip? ;  : needed-words ['] needed?  IS skip? ;
 : undef-words  ['] defined? IS skip? ;  : undef-words  ['] defined2? IS skip? ;
   : skipdef skipdef ;
   
 : \  postpone \ ;  immediate  : \  postpone \ ;  immediate
 : \G T-\G ; immediate  : \G T-\G ; immediate
Line 2208  minimal Line 2251  minimal
 \ these ones are pefered:  \ these ones are pefered:
   
 : lock   turnkey ;  : lock   turnkey ;
 : unlock forth also cross ;  : unlock previous forth also cross ;
   
 : [[ also unlock ;  : [[ also unlock ;
 : ]] previous previous ;  : ]] previous previous ;

Removed from v.1.71  
changed lines
  Added in v.1.75


FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>