--- gforth/cross.fs 1999/05/17 15:05:17 1.77 +++ gforth/cross.fs 1999/05/18 14:38:49 1.78 @@ -53,13 +53,13 @@ Vocabulary Minimal only Forth also Target also also definitions Forth -: T previous Cross also Target ; immediate +: T previous Ghosts also Target ; immediate : G Ghosts ; immediate : H previous Forth also Cross ; immediate forth definitions -: T previous Cross also Target ; immediate +: T previous Ghosts also Target ; immediate : G Ghosts ; immediate : >cross also Cross definitions previous ; @@ -135,6 +135,10 @@ Create bases 10 , 2 , A , 100 , r> ; : s>unumber? ( addr u -- ud flag ) + over [char] ' = + IF \ a ' alone is rather unusual :-) + drop char+ c@ 0 true EXIT + THEN base @ >r dpl on getbase 0. 2swap BEGIN ( d addr len ) @@ -198,7 +202,7 @@ Create bases 10 , 2 , A , 100 , [THEN] hex \ the defualt base for the cross-compiler is hex !! -Warnings off +\ Warnings off \ words that are generaly useful @@ -585,6 +589,8 @@ false DebugFlag showincludedfiles : require bl word count required ; +0 [IF] + also forth definitions previous : included ( adr len -- ) included ; @@ -595,6 +601,8 @@ also forth definitions previous : require require ; +[THEN] + >CROSS hex @@ -721,6 +729,8 @@ VARIABLE Already s" ?!?!?!" THEN ; +: .ghost ( ghost -- ) >ghostname type ; + \ ' >ghostname ALIAS @name : forward? ( ghost -- flag ) @@ -1219,11 +1229,11 @@ T has? relocate H : here ( -- there ) there ; : allot ( n -- ) tdp +! ; -: , ( w -- ) T here H tcell T allot ! H T here drop H ; -: c, ( char -- ) T here tchar allot c! H ; -: align ( -- ) T here H align+ 0 ?DO bl T c, tchar H +LOOP ; +: , ( w -- ) T here H tcell T allot ! H ; +: c, ( char -- ) T here H tchar T allot c! H ; +: align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ; : cfalign ( -- ) - T here H cfalign+ 0 ?DO bl T c, tchar H +LOOP ; + T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ; : >address dup 0>= IF tbyte / THEN ; \ ?? jaw : A! swap >address swap dup relon T ! H ; @@ -1368,11 +1378,11 @@ DEFER comp[ \ ends compilation Defer resolve-warning : reswarn-test ( ghost res-struct -- ghost res-struct ) - over cr ." Resolving " >ghostname type dup ." in " >ghost @ >ghostname type ; + over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ; : reswarn-forward ( ghost res-struct -- ghost res-struct ) - over warnhead >ghostname type dup ." is referenced in " - >ghost @ >ghostname type ; + over warnhead .ghost dup ." is referenced in " + >ghost @ .ghost ; \ ' reswarn-test IS resolve-warning @@ -1465,7 +1475,7 @@ variable ResolveFlag >link BEGIN @ dup WHILE cr 5 spaces - dup >ghost @ >ghostname type + dup >ghost @ .ghost ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN ." line " dup >line @ .dec REPEAT @@ -1518,12 +1528,6 @@ VARIABLE ^imm last-header-ghost @ >magic ! ; >CROSS -\ ALIAS2 ansforth conform alias 9may93jaw - -: ALIAS2 create here 0 , DOES> @ execute ; -\ usage: -\ ' alias2 bla ! - \ Target Header Creation 01nov92py >TARGET @@ -1632,9 +1636,6 @@ Defer skip? ' false IS skip? \ Target header creation -Variable CreateFlag -CreateFlag off - Variable NoHeaderFlag NoHeaderFlag off @@ -1660,25 +1661,14 @@ NoHeaderFlag off IF NoHeaderFlag off ELSE T align H view, - tlast @ dup 0> IF T 1 cells - H THEN T A, H there tlast ! + tlast @ dup 0> IF tcell - THEN T A, H there tlast ! 1 headers-named +! \ Statistic >in @ T name, H >in ! THEN T cfalign here H tlastcfa ! \ Symbol table \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in ! - CreateFlag @ - IF \ for a created word we need also a definition in target - \ to execute the created word while compile time - \ dont mind if a alias is defined twice - Warnings @ >r Warnings off - >in @ alias2 swap >in ! \ create alias in target - r> Warnings ! - >in @ ghost swap >in ! - swap also ghosts ' previous swap ! \ tick ghost and store in alias - CreateFlag off - ELSE ghost - THEN + ghost dup Last-Header-Ghost ! dup >magic ^imm ! \ a pointer for immediate Already @ @@ -1777,7 +1767,7 @@ Cond: ['] T ' H alit, ;Cond \ modularized 14jun97jaw : fillcfa ( usedcells -- ) - T cells H xt>body swap - 0 ?DO 0 T c, tchar H +LOOP ; + T cells H xt>body swap - 0 ?DO 0 X c, tchar +LOOP ; : (>body) ( cfa -- pfa ) xt>body + ; ' (>body) T IS >body H @@ -1833,8 +1823,6 @@ Defer (end-code) ELSE true ABORT" CROSS: Stack empty" THEN ; -( Cond ) : chars tchar * ; ( Cond ) - >CROSS \ tLiteral 12dec92py @@ -1987,14 +1975,11 @@ Cond: DOES> restrict? \ do:-xt is executet when the created word from builder is executed \ for do:-xt an additional entry after the normal ghost-enrys is used - >in @ alias2 swap dup >in ! >r >r - Make-Ghost - rot swap >exec dup @ ['] NoExec <> - IF 2drop ELSE ! THEN - , - r> r> >in ! - also ghosts ' previous swap ! ; -\ DOES> dup >exec @ execute ; + Make-Ghost ( Create-xt do:-xt ghost ) + rot swap ( do:-xt Create-xt ghost ) + >exec ! , ; +\ rot swap >exec dup @ ['] NoExec <> +\ IF 2drop ELSE ! THEN , ; : gdoes, ( ghost -- ) \ makes the codefield for a word that is built @@ -2014,17 +1999,18 @@ Cond: DOES> restrict? : TCreate ( -- ) executed-ghost @ - CreateFlag on create-forward-warn IF ['] reswarn-forward IS resolve-warning THEN Theader >r dup gdoes, \ stores execution semantic in the built word - >end @ >exec @ r> >exec ! ; +\ if the word already has a semantic (concerns S", IS, .", DOES>) +\ then keep it + >end @ >exec @ r> >exec dup @ ['] NoExec = + IF ! ELSE 2drop THEN ; : RTCreate ( -- ) \ creates a new word with code-field in ram executed-ghost @ - CreateFlag on create-forward-warn IF ['] reswarn-forward IS resolve-warning THEN \ make Alias @@ -2035,7 +2021,11 @@ Cond: DOES> restrict? there tlastcfa ! dup there resolve 0 ;Resolve ! >r dup gdoes, - >end @ >exec @ r> >exec ! ; +\ stores execution semantic in the built word +\ if the word already has a semantic (concerns S", IS, .", DOES>) +\ then keep it + >end @ >exec @ r> >exec dup @ ['] NoExec = + IF ! ELSE 2drop THEN ; : Build: ( -- [xt] [colon-sys] ) :noname postpone TCreate ; @@ -2127,25 +2117,29 @@ Builder AVariable \ User variables 04may94py >CROSS + Variable tup 0 tup ! Variable tudp 0 tudp ! + : u, ( n -- udp ) tup @ tudp @ + T ! H tudp @ dup T cell+ H tudp ! ; + : au, ( n -- udp ) tup @ tudp @ + T A! H tudp @ dup T cell+ H tudp ! ; + >TARGET -Build: T 0 u, , H ; -by: :douser ( ghost -- up-addr ) T @ H tup @ + ;DO +Build: 0 u, X , ; +by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO Builder User -Build: T 0 u, , 0 u, drop H ; +Build: 0 u, X , 0 u, drop ; by User Builder 2User -Build: T 0 au, , H ; +Build: 0 au, X , ; by User Builder AUser @@ -2161,7 +2155,7 @@ BuildSmart: ( -- ) [T'] noop T A, H ; by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO Builder Defer -BuildSmart: ( inter comp -- ) swap T immediate A, A, H ; +Build: ( inter comp -- ) swap T immediate A, A, H ; DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO Builder interpret/compile: @@ -2189,9 +2183,6 @@ Builder Field : cell% ( n -- size align ) T 1 cells H dup ; -\ ' 2Constant Alias2 end-struct -\ 0 1 T Chars H 2Constant struct - \ structural conditionals 17dec92py >CROSS @@ -2199,15 +2190,17 @@ Builder Field : sys? ( sys -- sys ) dup 0= ?struc ; : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ; -: branchoffset ( src dest -- ) - tchar / ; \ ?? jaw +: branchoffset ( src dest -- ) - tchar / ; \ ?? jaw -: >resolve ( sys -- ) T here ( dup ." >" hex. ) over branchoffset swap ! H ; +: >resolve ( sys -- ) + X here ( dup ." >" hex. ) over branchoffset swap X ! ; -: TARGET @@ -2227,29 +2220,10 @@ Builder Field Cond: BUT restrict? sys? swap ;Cond Cond: YET restrict? sys? dup ;Cond -0 [IF] ->CROSS -Variable tleavings ->TARGET - -Cond: DONE ( addr -- ) restrict? tleavings @ - BEGIN 2dup u> 0= WHILE dup T @ H swap >resolve REPEAT - tleavings ! drop ;Cond - >CROSS -: (leave) T here H tleavings @ T , H tleavings ! ; ->TARGET -Cond: LEAVE restrict? compile branch (leave) ;Cond -Cond: ?LEAVE restrict? compile 0= compile ?branch (leave) ;Cond - -[ELSE] - \ !! This is WIP - \ The problem is (?DO)! - \ perhaps we need a plug-in for (?DO) - ->CROSS Variable tleavings 0 tleavings ! + : (done) ( addr -- ) tleavings @ BEGIN dup @@ -2279,8 +2253,6 @@ Cond: DONE ( addr -- ) restrict? (don Cond: LEAVE restrict? branchmark, (leave) ;Cond Cond: ?LEAVE restrict? compile 0= ?branchmark, (leave) ;Cond -[THEN] - >CROSS \ !!JW ToDo : Move to general tools section @@ -2659,9 +2631,9 @@ previous : G ghosts ; immediate : turnkey - \GFORTH 0 set-order also Target - \ANSI [ ' target >wordlist ] Literal 1 set-order - definitions + \GFORTH 0 set-order also ghosts + \ANSI [ ' ghosts >wordlist ] Literal 1 set-order + also target definitions also Minimal also ; \ these ones are pefered: @@ -2671,7 +2643,7 @@ previous \ also minimal : [[ also unlock ; -: ]] previous previous ; +: ]] previous previous also also ; unlock definitions also minimal : lock lock ;