--- gforth/cross.fs 2001/09/06 08:14:16 1.111 +++ gforth/cross.fs 2007/03/25 21:30:59 1.162 @@ -1,7 +1,7 @@ \ CROSS.FS The Cross-Compiler 06oct92py \ Idea and implementation: Bernd Paysan (py) -\ Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software Foundation, Inc. +\ Copyright (C) 1995,1996,1997,1998,1999,2000,2003,2004,2005,2006 Free Software Foundation, Inc. \ This file is part of Gforth. @@ -27,10 +27,11 @@ ToDo: cross.fs is used seperately. jaw - Do we need this char translation with >address and in branchoffset? (>body also affected) jaw -- MAXU etc. can be done with dlit, [THEN] +s" compat/strcomp.fs" included + hex \ debugging for compiling @@ -71,6 +72,10 @@ H >CROSS +\ Test against this definitions to find out whether we are cross-compiling +\ may be usefull for assemblers +0 Constant gforth-cross-indicator + \ find out whether we are compiling with gforth : defined? bl word find nip ; @@ -202,6 +207,13 @@ Create bases 10 , 2 , A , 100 , [THEN] +\ this provides assert( and struct stuff +\GFORTH [IFUNDEF] assert1( +\GFORTH also forth definitions require assert.fs previous +\GFORTH [THEN] + +>CROSS + hex \ the defualt base for the cross-compiler is hex !! \ Warnings off @@ -242,21 +254,26 @@ hex \ the defualt base for the cross hex +\ FIXME delete` \ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are \ for cross-compiling \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!! +\ FIXME move down : comment? ( c-addr u -- c-addr u ) - 2dup s" (" compare 0= + 2dup s" (" str= IF postpone ( - ELSE 2dup s" \" compare 0= IF postpone \ THEN + ELSE 2dup s" \" str= IF postpone \ THEN THEN ; -: X bl word count [ ' target >wordlist ] Literal search-wordlist - IF state @ IF compile, - ELSE execute THEN - ELSE -1 ABORT" Cross: access method not supported!" - THEN ; immediate +: X ( -- ) +\G The next word in the input is a target word. +\G Equivalent to T but without permanent +\G switch to target dictionary. Used as prefix e.g. for @, !, here etc. + bl word count [ ' target >wordlist ] Literal search-wordlist + IF state @ IF compile, ELSE execute THEN + ELSE -1 ABORT" Cross: access method not supported!" + THEN ; immediate \ Begin CROSS COMPILER: @@ -303,6 +320,18 @@ set-order previous \ POSTPONE false THEN ; immediate +: symentry ( adr len taddr -- ) +\G Produce a symbol table (an optional symbol address +\G map) if wanted + [ [IFDEF] fd-symbol-table ] + base @ swap hex s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base ! + s" :" fd-symbol-table write-file throw + fd-symbol-table write-line throw + [ [ELSE] ] + 2drop drop + [ [THEN] ] ; + + \ \ -------------------- source file decimal @@ -418,7 +447,7 @@ sourcepath value fpath \G Make a complete new Forth search path; the path separator is |. fpath path= ; -: path>counted cell+ dup cell+ swap @ ; +: path>string cell+ dup cell+ swap @ ; : next-path ( adr len -- adr2 len2 ) 2dup 0 scan @@ -427,12 +456,12 @@ sourcepath value fpath r> - ; : previous-path ( path^ -- ) - dup path>counted + dup path>string BEGIN tuck dup WHILE repeat ; : .path ( path-addr -- ) \ gforth \G Display the contents of the search path @var{path-addr}. - path>counted + path>string BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ; : .fpath ( -- ) \ gforth @@ -447,8 +476,8 @@ sourcepath value fpath 2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/.... over c@ [char] / = >r over c@ [char] ~ = >r - \ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic - 2 min S" ./" compare 0= + \ 2dup S" ../" string-prefix? r> or >r \ not catered for in expandtopic + S" ./" string-prefix? r> r> r> or or or ; Create ofile 0 c, 255 chars allot @@ -464,14 +493,14 @@ Create tfile 0 c, 255 chars allot REPEAT ; : remove~+ ( -- ) - ofile count 3 min s" ~+/" compare 0= + ofile count s" ~+/" string-prefix? IF ofile count 3 /string ofile place THEN ; : expandtopic ( -- ) \ stack effect correct? - anton \ expands "./" into an absolute name - ofile count 2 min s" ./" compare 0= + ofile count s" ./" string-prefix? IF ofile count 1 /string tfile place 0 ofile c! sourcefilename extractpath ofile place @@ -484,7 +513,7 @@ Create tfile 0 c, 255 chars allot \ deletes phrases like "xy/.." out of our directory name 2dec97jaw over swap BEGIN dup WHILE - dup >r '/ scan 2dup 4 min s" /../" compare 0= + dup >r '/ scan 2dup s" /../" string-prefix? IF dup r> - >r 4 /string over r> + 4 - swap 2dup + >r move dup r> over - @@ -517,7 +546,7 @@ Create tfile 0 c, 255 chars allot IF rdrop ofile place open-ofile dup 0= IF >r ofile count r> THEN EXIT - ELSE r> path>counted + ELSE r> path>string BEGIN next-path dup WHILE 5 pick 5 pick check-path 0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN @@ -547,7 +576,7 @@ fpath= ~+ : included? ( c-addr u -- f ) file-list BEGIN @ dup - WHILE >r 2dup r@ >fl-name count compare 0= + WHILE >r 2dup r@ >fl-name count str= IF rdrop 2drop true EXIT THEN r> REPEAT @@ -633,6 +662,7 @@ stack-warn [IF] : defempty? empty? ; [ELSE] : defempty? ; immediate +\ : defempty? .sourcepos ; [THEN] \ \ -------------------- Compiler Plug Ins 01aug97jaw @@ -738,9 +768,14 @@ Plugin next, ( for-token ) Plugin leave, ( -- ) Plugin ?leave, ( -- ) -[IFUNDEF] ca>native -Plugin ca>native -[THEN] +Plugin ca>native \ Convert a code address to the processors + \ native address. This is used in doprim, and + \ code/code: primitive definitions word to + \ convert the addresses. + \ The only target where we need this is the misc + \ which is a 16 Bit processor with word addresses + \ but the forth system we build has a normal byte + \ addressed memory model Plugin doprim, \ compiles start of a primitive Plugin docol, \ compiles start of a colon definition @@ -893,8 +928,8 @@ Variable cross-space-dp-orig Defer is-forward : (ghostheader) ( -- ) - ghost-list linked , 0 , ['] NoExec , ['] is-forward , - 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ; + ghost-list linked , 0 , ['] NoExec , ['] is-forward , + 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ; : ghostheader ( -- ) (ghostheader) 0 , ; @@ -1007,10 +1042,13 @@ Variable reuse-ghosts reuse-ghosts off \ ' >ghostname ALIAS @name +: findghost ( "ghostname" -- ghost ) + bl word gfind 0= ABORT" CROSS: Ghost don't exists" ; + : [G'] ( -- ghost : name ) \G ticks a ghost and returns its address -\ bl word gfind 0= ABORT" CROSS: Ghost don't exists" - ghost state @ IF postpone literal THEN ; immediate + findghost + state @ IF postpone literal THEN ; immediate : g>xt ( ghost -- xt ) \G Returns the xt (cfa) of a ghost. Issues a warning if undefined. @@ -1041,32 +1079,38 @@ End-Struct addr-struct dup @ ?dup IF nip EXIT THEN addr-struct %allocerase tuck swap ! ; +>cross + \ Predefined ghosts 12dec92py +Ghost - drop \ need a ghost otherwise "-" would be treated as a number + Ghost 0= drop Ghost branch Ghost ?branch 2drop -Ghost (do) Ghost (?do) 2drop -Ghost (for) drop -Ghost (loop) Ghost (+loop) 2drop -Ghost (next) drop Ghost unloop Ghost ;S 2drop -Ghost lit Ghost (compile) Ghost ! 2drop drop -Ghost (does>) Ghost noop 2drop -Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop -Ghost ' drop -Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop -Ghost :dovar drop +Ghost lit Ghost ! 2drop +Ghost noop drop Ghost over Ghost = Ghost drop 2drop drop -Ghost - drop Ghost 2drop drop Ghost 2dup drop +Ghost call drop +Ghost @ drop +Ghost useraddr drop +Ghost execute drop +Ghost + drop +Ghost decimal drop +Ghost hex drop +Ghost lit@ drop +Ghost lit-perform drop +Ghost lit+ drop +Ghost does-exec drop - +Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop +Ghost :dovar drop \ \ Parameter for target systems 06oct92py ->cross \ we define it ans like... wordlist Constant target-environment @@ -1131,19 +1175,33 @@ false DefaultValue header false DefaultValue backtrace false DefaultValue new-input false DefaultValue peephole +false DefaultValue primcentric +false DefaultValue abranch +true DefaultValue f83headerstring +true DefaultValue control-rack [THEN] +true DefaultValue gforthcross true DefaultValue interpreter true DefaultValue ITC false DefaultValue rom +false DefaultValue flash true DefaultValue standardthreading +\ ANSForth environment stuff +8 DefaultValue ADDRESS-UNIT-BITS +255 DefaultValue MAX-CHAR +255 DefaultValue /COUNTED-STRING + >TARGET s" relocate" T environment? H \ JAW why set NIL to this?! [IF] drop \ SetValue NIL -[ELSE] >ENVIRON T NIL H SetValue relocate +[ELSE] >ENVIRON X NIL SetValue relocate [THEN] +>TARGET + +0 Constant NIL >CROSS @@ -1189,10 +1247,9 @@ tbits/char bits/byte / Constant tbyte \ Variables 06oct92py -Variable image -Variable tlast TNIL tlast ! \ Last name field +Variable (tlast) +(tlast) Value tlast TNIL tlast ! \ Last name field Variable tlastcfa \ Last code field -Variable bit$ \ statistics 10jun97jaw @@ -1214,18 +1271,25 @@ Variable region-link \ linked Variable mirrored-link \ linked list for mirrored regions 0 dup mirrored-link ! region-link ! - -: >rname 7 cells + ; -: >rbm 4 cells + ; +: >rname 9 cells + ; +: >rtouch 8 cells + ; \ executed when region is accessed +: >rbm 4 cells + ; \ bitfield per cell witch indicates relocation : >rmem 5 cells + ; -: >rtype 6 cells + ; +: >rtype 6 cells + ; \ field per cell witch points to a type struct +: >rrom 7 cells + ; \ a -1 indicates that this region is rom : >rlink 3 cells + ; : >rdp 2 cells + ; : >rlen cell+ ; : >rstart ; +: (region) ( addr len region -- ) +\G change startaddress and length of an existing region + >r r@ last-defined-region ! + r@ >rlen ! dup r@ >rstart ! r> >rdp ! ; + +: uninitialized -1 ABORT" CROSS: Region is uninitialized" ; -: region ( addr len -- ) +: region ( addr len -- "name" ) \G create a new region \ check whether predefined region exists save-input bl word find >r >r restore-input throw r> r> 0= @@ -1234,11 +1298,12 @@ Variable mirrored-link \ linked save-input create restore-input throw here last-defined-region ! over ( startaddr ) , ( length ) , ( dp ) , - region-link linked 0 , 0 , 0 , bl word count string, + region-link linked 0 , 0 , 0 , 0 , + ['] uninitialized , + bl word count string, ELSE \ store new parameters in region bl word drop - >body >r r@ last-defined-region ! - r@ >rlen ! dup r@ >rstart ! r> >rdp ! + >body (region) THEN ; : borders ( region -- startaddr endaddr ) @@ -1253,11 +1318,18 @@ Variable mirrored-link \ linked \G returns the total area dup >rstart @ swap >rlen @ ; -: mirrored -\G mark a region as mirrored +: dp@ ( region -- dp ) + >rdp @ ; + +: mirrored ( -- ) +\G mark last defined region as mirrored mirrored-link align linked last-defined-region @ , ; +: writeprotected +\G mark a region as write protected + -1 last-defined-region @ >rrom ! ; + : .addr ( u -- ) \G prints a 16 or 32 Bit nice hex value base @ >r hex @@ -1294,6 +1366,10 @@ Variable mirrored-link \ linked 0 0 region address-space \ total memory addressed and used by the target system +0 0 region user-region +\ data for user variables goes here +\ this has to be defined before dictionary or ram-dictionary + 0 0 region dictionary \ rom area for the compiler @@ -1313,6 +1389,21 @@ T has? rom H ' dictionary ALIAS rom-dictionary +: setup-region ( region -- ) + >r + \ allocate mem + r@ >rlen @ allocatetarget + r@ >rmem ! + + r@ >rlen @ + target>bitmask-size allocatetarget + r@ >rbm ! + + r@ >rlen @ + tcell / 1+ cells allocatetarget r@ >rtype ! + + ['] noop r@ >rtouch ! + rdrop ; : setup-target ( -- ) \G initialize target's memory space s" rom" T $has? H @@ -1338,26 +1429,16 @@ T has? rom H WHILE dup 0 >rlink - >r r@ >rlen @ - IF \ allocate mem - r@ >rlen @ allocatetarget dup image ! - r@ >rmem ! - - r@ >rlen @ - target>bitmask-size allocatetarget - dup bit$ ! - r@ >rbm ! - - r@ >rlen @ - tcell / 1+ cells allocatetarget r@ >rtype ! - - rdrop - ELSE r> drop THEN + IF r@ setup-region + THEN rdrop REPEAT drop ; \ MakeKernel 22feb99jaw -: makekernel ( targetsize -- targetsize ) - dup dictionary >rlen ! setup-target ; +: makekernel ( start targetsize -- ) +\G convenience word to setup the memory of the target +\G used by main.fs of the c-engine based systems + dictionary (region) setup-target ; >MINIMAL : makekernel makekernel ; @@ -1382,9 +1463,9 @@ variable sromdp \ start of rom-area for [THEN] - -0 value tdp -variable fixed \ flag: true: no automatic switching +0 Value current-region +0 Value tdp +Variable fixed \ flag: true: no automatic switching \ false: switching is done automatically \ Switch-Policy: @@ -1399,7 +1480,7 @@ variable constflag constflag off : activate ( region -- ) \G next code goes to this region - >rdp to tdp ; + dup to current-region >rdp to tdp ; : (switchram) fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT @@ -1485,7 +1566,9 @@ bigendian 0 >rlink - >r r@ >rlen @ IF dup r@ borders within - IF r> r> drop nip EXIT THEN + IF r> r> drop nip + dup >rtouch @ EXECUTE EXIT + THEN THEN r> drop r> @@ -1493,6 +1576,8 @@ bigendian 2drop 0 ; : taddr>region-abort ( taddr -- region | 0 ) +\G Same as taddr>region but aborts if taddr is not +\G a valid address in the target address space dup taddr>region dup 0= IF drop cr ." Wrong address: " .addr -1 ABORT" Address out of range!" @@ -1508,6 +1593,18 @@ bigendian \ add regions real address in our memory r> >rmem @ + ; +: (>regionramimage) ( taddr -- 'taddr ) +\G same as (>regionimage) but aborts if the region is rom + dup + \ find region we want to address + taddr>region-abort + >r + r@ >rrom @ ABORT" CROSS: region is write-protected!" + \ calculate offset in region + r@ >rstart @ - + \ add regions real address in our memory + r> >rmem @ + ; + : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr ) dup \ find region we want to address @@ -1553,9 +1650,8 @@ CREATE Bittable 80 c, 40 c, 20 c, 10 c, [ [THEN] ] (>regionbm) swap cell/ -bit ; -: (>image) ( taddr -- absaddr ) image @ + ; - DEFER >image +DEFER >ramimage DEFER relon DEFER reloff DEFER correcter @@ -1565,12 +1661,23 @@ T has? relocate H ' (relon) IS relon ' (reloff) IS reloff ' (>regionimage) IS >image +' (>regionimage) IS >ramimage [ELSE] ' drop IS relon ' drop IS reloff ' (>regionimage) IS >image +' (>regionimage) IS >ramimage [THEN] +: enforce-writeprotection ( -- ) + ['] (>regionramimage) IS >ramimage ; + +: relax-writeprotection ( -- ) + ['] (>regionimage) IS >ramimage ; + +: writeprotection-relaxed? ( -- ) + ['] >ramimage >body @ ['] (>regionimage) = ; + \ Target memory access 06oct92py : align+ ( taddr -- rest ) @@ -1588,9 +1695,9 @@ T has? relocate H dup cfalign+ + ; : @ ( taddr -- w ) >image S@ ; -: ! ( w taddr -- ) >image S! ; +: ! ( w taddr -- ) >ramimage S! ; : c@ ( taddr -- char ) >image Sc@ ; -: c! ( char taddr -- ) >image Sc! ; +: c! ( char taddr -- ) >ramimage Sc! ; : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ; @@ -1609,6 +1716,23 @@ T has? relocate H : A! swap >address swap dup relon T ! H ; : A, ( w -- ) >address T here H relon T , H ; +\ high-level ghosts + +>CROSS + +Ghost (do) Ghost (?do) 2drop +Ghost (for) drop +Ghost (loop) Ghost (+loop) 2drop +Ghost (next) drop +Ghost (does>) Ghost (does>1) Ghost (does>2) 2drop drop +Ghost compile, drop +Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop +Ghost (C") Ghost c(abort") Ghost type 2drop drop +Ghost ' drop + +\ user ghosts + +Ghost state drop \ \ -------------------- Host/Target copy etc. 29aug01jaw @@ -1629,16 +1753,22 @@ T has? relocate H swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ; 2Variable last-string +X has? rom [IF] $60 [ELSE] $00 [THEN] Constant header-masks +: ht-header, ( addr count -- ) + dup there swap last-string 2! + dup header-masks or T c, H bounds ?DO I c@ T c, H LOOP ; : ht-string, ( addr count -- ) dup there swap last-string 2! - dup T c, H bounds ?DO I c@ T c, H LOOP ; + dup T c, H bounds ?DO I c@ T c, H LOOP ; +: ht-mem, ( addr count ) + bounds ?DO I c@ T c, H LOOP ; >TARGET : count dup X c@ swap X char+ swap ; -: on -1 -1 rot TD! ; +: on >r -1 -1 r> TD! ; : off T 0 swap ! H ; : tcmove ( source dest len -- ) @@ -1647,6 +1777,9 @@ T has? relocate H ?DO dup T c@ H I T c! H 1+ tchar +LOOP drop ; +: tcallot ( char size -- ) + 0 ?DO dup T c, H tchar +LOOP drop ; + : td, ( d -- ) \G Store a host value as one cell into the target there tcell X allot TD! ; @@ -1669,7 +1802,7 @@ previous : (cc) T a, H ; ' (cc) plugin-of colon, : (prim) T a, H ; ' (prim) plugin-of prim, -: (cr) >tempdp ]comp prim, comp[ tempdp> ; ' (cr) plugin-of colon-resolve +: (cr) >tempdp colon, tempdp> ; ' (cr) plugin-of colon-resolve : (ar) T ! H ; ' (ar) plugin-of addr-resolve : (dr) ( ghost res-pnt target-addr addr ) >tempdp drop over @@ -1680,8 +1813,7 @@ previous tempdp> ; ' (dr) plugin-of doer-resolve : (cm) ( -- addr ) - T here align H - -1 prim, ; ' (cm) plugin-of colonmark, + there -1 colon, ; ' (cm) plugin-of colonmark, >TARGET : compile, ( xt -- ) @@ -1707,7 +1839,7 @@ previous loadfile , sourceline# , space> - ; +; : refered ( ghost tag -- ) \G creates a resolve structure @@ -1766,48 +1898,78 @@ Defer resolve-warning >link ! ; : colon-resolved ( ghost -- ) - >link @ colon, ; \ compile-call +\ compiles a call to a colon definition, +\ compile action for >comp field + >link @ colon, ; : prim-resolved ( ghost -- ) +\ compiles a call to a primitive >link @ prim, ; -\ FIXME: not used currently -: does-resolved ( ghost -- ) - dup g>body alit, >do:ghost @ g>body colon, ; - : (is-forward) ( ghost -- ) - colonmark, 0 (refered) ; \ compile space for call + colonmark, 0 (refered) ; \ compile space for call ' (is-forward) IS is-forward -: resolve ( ghost tcfa -- ) -\G resolve referencies to ghost with tcfa +0 Value resolved + +: resolve-forward-references ( ghost resolve-list -- ) + \ loop through forward referencies + comp-state @ >r Resolving comp-state ! + over >link @ resolve-loop + r> comp-state ! + + ['] noop IS resolve-warning ; + + +: (resolve) ( ghost tcfa -- ghost resolve-list ) + \ check for a valid address, it is a primitive reference + \ otherwise dup taddr>region 0<> IF + \ define this address in the region address type table 2dup (>regiontype) define-addr-struct addr-xt-ghost - \ we define new address only if empty \ this is for not to take over the alias ghost \ (different ghost, but identical xt) \ but the very first that really defines it dup @ 0= IF ! ELSE 2drop THEN THEN + swap >r + r@ to resolved +\ r@ >comp @ ['] is-forward = +\ ABORT" >comp action not set on a resolved ghost" + + \ copmile action defaults to colon-resolved + \ if this is not right something must be set before + \ calling resolve + r@ >comp @ ['] is-forward = IF + ['] colon-resolved r@ >comp ! + THEN + r@ >link @ swap \ ( list tcfa R: ghost ) + \ mark ghost as resolved + r@ >link ! r@ >magic ! + r> swap ; + +: resolve ( ghost tcfa -- ) +\G resolve referencies to ghost with tcfa \ is ghost resolved?, second resolve means another \ definition with the same name over undefined? 0= IF exists EXIT THEN - \ get linked-list - swap >r r@ >link @ swap \ ( list tcfa R: ghost ) - \ mark ghost as resolved - dup r@ >link ! r@ >magic ! - r@ >comp @ ['] is-forward = IF - ['] prim-resolved r@ >comp ! THEN - \ loop through forward referencies - r> -rot - comp-state @ >r Resolving comp-state ! - resolve-loop - r> comp-state ! - - ['] noop IS resolve-warning - ; + (resolve) + ( ghost resolve-list ) + resolve-forward-references ; + +: resolve-noforwards ( ghost tcfa -- ) +\G Same as resolve but complain if there are any +\G forward references on this ghost + \ is ghost resolved?, second resolve means another + \ definition with the same name + over undefined? 0= IF exists EXIT THEN + (resolve) + IF cr ." No forward references allowed on: " .ghost cr + -1 ABORT" Illegal forward reference" + THEN + drop ; \ gexecute ghost, 01nov92py @@ -1815,7 +1977,7 @@ Defer resolve-warning dup >comp @ EXECUTE ; : gexecute ( ghost -- ) - dup >magic @ = IF -1 ABORT" CROSS: gexecute on immediate word" THEN + dup >magic @ = ABORT" CROSS: gexecute on immediate word" (gexecute) ; : addr, ( ghost -- ) @@ -1874,7 +2036,7 @@ variable ResolveFlag \ Header states 12dec92py \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ; -bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+ +X has? f83headerstring bigendian or [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+ : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ; VARIABLE ^imm @@ -1903,7 +2065,11 @@ $20 constant restrict-mask dup T , H bounds ?DO I c@ T c, H LOOP ; >TARGET +X has? f83headerstring [IF] +: name, ( "name" -- ) bl word count ht-header, X cfalign ; +[ELSE] : name, ( "name" -- ) bl word count ht-lstring, X cfalign ; +[THEN] : view, ( -- ) ( dummy ) ; >CROSS @@ -1937,11 +2103,13 @@ Variable to-doc to-doc on \ Target TAGS creation s" kernel.TAGS" r/w create-file throw value tag-file-id +s" kernel.tags" r/w create-file throw value vi-tag-file-id \ contains the file-id of the tags file -Create tag-beg 2 c, 7F c, bl c, -Create tag-end 2 c, bl c, 01 c, +Create tag-beg 1 c, 7F c, +Create tag-end 1 c, 01 c, Create tag-bof 1 c, 0C c, +Create tag-tab 1 c, 09 c, 2variable last-loadfilename 0 0 last-loadfilename 2! @@ -1955,13 +2123,13 @@ Create tag-bof 1 c, 0C c, s" ,0" tag-file-id write-line throw THEN ; -: cross-tag-entry ( -- ) +: cross-gnu-tag-entry ( -- ) tlast @ 0<> \ not an anonymous (i.e. noname) header IF put-load-file-name source >in @ min tag-file-id write-file throw tag-beg count tag-file-id write-file throw - tlast @ >image count 1F and tag-file-id write-file throw + Last-Header-Ghost @ >ghostname tag-file-id write-file throw tag-end count tag-file-id write-file throw base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw @@ -1969,6 +2137,22 @@ Create tag-bof 1 c, 0C c, base ! THEN ; +: cross-vi-tag-entry ( -- ) + tlast @ 0<> \ not an anonymous (i.e. noname) header + IF + sourcefilename vi-tag-file-id write-file throw + tag-tab count vi-tag-file-id write-file throw + Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw + tag-tab count vi-tag-file-id write-file throw + s" /^" vi-tag-file-id write-file throw + source vi-tag-file-id write-file throw + s" $/" vi-tag-file-id write-line throw + THEN ; + +: cross-tag-entry ( -- ) + cross-gnu-tag-entry + cross-vi-tag-entry ; + \ Check for words Defer skip? ' false IS skip? @@ -2003,8 +2187,9 @@ Defer skip? ' false IS skip? 0= ELSE drop true THEN ; -: doer? ( -- flag ) \ name - Ghost >magic @ = ; +: doer? ( "name" -- 0 | addr ) \ name + Ghost dup >magic @ = + IF >link @ ELSE drop 0 THEN ; : skip-defs ( -- ) BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ; @@ -2029,7 +2214,7 @@ NoHeaderFlag off ENDCASE LOOP ; -Defer setup-execution-semantics +Defer setup-execution-semantics ' noop IS setup-execution-semantics 0 Value lastghost : (THeader ( "name" -- ghost ) @@ -2050,11 +2235,7 @@ Defer setup-execution-semantics \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in ! HeaderGhost \ output symbol table to extra file - [ [IFDEF] fd-symbol-table ] - base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base ! - s" :" fd-symbol-table write-file throw - dup >ghostname fd-symbol-table write-line throw - [ [THEN] ] + dup >ghostname there symentry dup Last-Header-Ghost ! dup to lastghost dup >magic ^imm ! \ a pointer for immediate alias-mask flag! @@ -2077,6 +2258,7 @@ Variable aprim-nr -20 aprim-nr ! : copy-execution-semantics ( ghost-from ghost-dest -- ) >r dup >exec @ r@ >exec ! + dup >comp @ r@ >comp ! dup >exec2 @ r@ >exec2 ! dup >exec-compile @ r@ >exec-compile ! dup >ghost-xt @ r@ >ghost-xt ! @@ -2102,35 +2284,39 @@ Variable last-prim-ghost Defer setup-prim-semantics -: aprim ( -- ) +: mapprim ( "forthname" "asmlabel" -- ) THeader -1 aprim-nr +! aprim-nr @ T A, H asmprimname, setup-prim-semantics ; -: aprim: ( -- ) +: mapprim: ( "forthname" "asmlabel" -- ) -1 aprim-nr +! aprim-nr @ - Ghost tuck swap resolve swap tuck >magic ! + Ghost tuck swap resolve-noforwards swap tuck >magic ! asmprimname, ; -: Alias: ( cfa -- ) \ name +: Doer: ( cfa -- ) \ name >in @ skip? IF 2drop EXIT THEN >in ! dup 0< s" prims" T $has? H 0= and IF .sourcepos ." needs doer: " >in @ bl word count type >in ! cr THEN - Ghost tuck swap resolve swap >magic ! ; + Ghost + tuck swap resolve-noforwards swap >magic ! ; Variable prim# : first-primitive ( n -- ) prim# ! ; +: group 0 word drop prim# @ 1- -$200 and prim# ! ; +: groupadd ( n -- ) drop ; : Primitive ( -- ) \ name - >in @ skip? IF 2drop EXIT THEN >in ! - dup 0< s" prims" T $has? H 0= and + >in @ skip? IF drop EXIT THEN >in ! + s" prims" T $has? H 0= IF .sourcepos ." needs prim: " >in @ bl word count type >in ! cr THEN prim# @ (THeader ( S xt ghost ) + ['] prim-resolved over >comp ! dup >ghost-flags set-flag - over resolve T A, H alias-mask flag! + over resolve-noforwards T A, H alias-mask flag! -1 prim# +! ; >CROSS @@ -2167,8 +2353,7 @@ Comment ( Comment \ \ compile 10may93jaw : compile ( "name" -- ) \ name -\ bl word gfind 0= ABORT" CROSS: Can't compile " - ghost + findghost dup >exec-compile @ ?dup IF nip compile, ELSE postpone literal postpone gexecute THEN ; immediate restrict @@ -2190,7 +2375,8 @@ Cond: ['] T ' H alit, ;Cond : [T'] \ returns the target-cfa of a ghost, or compiles it as literal - postpone [G'] state @ IF postpone g>xt ELSE g>xt THEN ; immediate + postpone [G'] + state @ IF postpone g>xt ELSE g>xt THEN ; immediate \ \ threading modell 13dec92py \ modularized 14jun97jaw @@ -2210,14 +2396,16 @@ T 2 cells H Value xt>body : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol, + ' NOOP plugin-of ca>native + : (doprim,) ( -- ) there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim, : (doeshandler,) ( -- ) - T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) plugin-of doeshandler, + T cfalign H [G'] :doesjump addr, T 0 , H ; ' (doeshandler,) plugin-of doeshandler, : (dodoes,) ( does-action-ghost -- ) - ]comp [G'] :dodoes gexecute comp[ + ]comp [G'] :dodoes addr, comp[ addr, \ the relocator in the c engine, does not like the \ does-address to marked for relocation @@ -2248,15 +2436,24 @@ Defer (end-code) >TARGET : Code defempty? - (THeader there resolve + (THeader ( ghost ) + ['] prim-resolved over >comp ! + there resolve-noforwards + [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF] doprim, [THEN] depth (code) ; +\ FIXME : no-compile -1 ABORT" this ghost is not for compilation" ; + : Code: defempty? - Ghost dup there ca>native resolve swap >magic ! + Ghost >r + r@ >ghostname there symentry + r@ there ca>native resolve-noforwards + r@ >magic ! + r> drop depth (code) ; : end-code @@ -2278,43 +2475,42 @@ Cond: ALiteral ( n -- ) alit, ;Cond : Char ( "" -- ) bl word char+ c@ ; Cond: [Char] ( "" -- ) Char lit, ;Cond +: (x#) ( adr len base -- ) + base @ >r base ! 0 0 name >number 2drop drop r> base ! ; + +: d# $0a (x#) ; +: h# $010 (x#) ; + +Cond: d# $0a (x#) lit, ;Cond +Cond: h# $010 (x#) lit, ;Cond + tchar 1 = [IF] Cond: chars ;Cond [THEN] \ some special literals 27jan97jaw -\ !! Known Bug: Special Literals and plug-ins work only correct -\ on 16 and 32 Bit Targets and 32 Bit Hosts! - -\ This section could be done with dlit, now. But first I need -\ some test code JAW - Cond: MAXU - tcell 1 cells u> - IF compile lit tcell 0 ?DO FF T c, H LOOP - ELSE ffffffff lit, THEN + -1 s>d dlit, ;Cond +tcell 2 = tcell 4 = or tcell 8 = or 0= +[IF] +.( Warning: MINI and MAXI may not work with this host) cr +[THEN] + Cond: MINI - tcell 1 cells u> - IF compile lit bigendian - IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP - ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H - THEN - ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN + tcell 2 = IF $8000 ELSE $80000000 THEN 0 + tcell 8 = IF swap THEN dlit, ;Cond Cond: MAXI - tcell 1 cells u> - IF compile lit bigendian - IF 7F T c, H tcell 1 ?DO FF T c, H LOOP - ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H - THEN - ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN - ;Cond + tcell 2 = IF $7fff ELSE $7fffffff THEN 0 + tcell 8 = IF drop -1 swap THEN dlit, + ;Cond >CROSS + \ Target compiling loop 12dec92py \ ">tib trick thrown out 10may93jaw \ number? defined at the top 11may93jaw @@ -2335,10 +2531,11 @@ Cond: MAXI IF 0> IF swap lit, THEN lit, discard ELSE 2drop restore-input throw Ghost gexecute THEN ; ->TARGET \ : ; DOES> 13dec92py \ ] 9may93py/jaw +>CROSS + : compiling-state ( -- ) \G set states to compililng Compiling comp-state ! @@ -2353,6 +2550,8 @@ Cond: MAXI IF >ghost-xt @ execute X off ELSE drop THEN Interpreting comp-state ! ; +>TARGET + : ] compiling-state BEGIN @@ -2380,7 +2579,7 @@ Cond: MAXI (THeader (:) ; : :noname ( -- colon-sys ) - X cfalign there + switchrom X cfalign there \ define a nameless ghost here ghostheader dup last-header-ghost ! dup to lastghost (:) ; @@ -2406,8 +2605,8 @@ Cond: ; ( -- ) fini, comp[ ;Resolve @ - IF ;Resolve @ ;Resolve cell+ @ resolve - ['] colon-resolved ;Resolve @ >comp ! + IF ['] colon-resolved ;Resolve @ >comp ! + ;Resolve @ ;Resolve cell+ @ resolve THEN interpreting-state ;Cond @@ -2416,36 +2615,42 @@ Cond: [ ( -- ) interpreting-state ;Cond >CROSS -Create GhostDummy ghostheader - GhostDummy >magic ! +0 Value created : !does ( does-action -- ) -\ !! zusammenziehen und dodoes, machen! tlastcfa @ [G'] :dovar killref -\ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ; -\ !! geht so nicht, da dodoes, ghost will! - GhostDummy >link ! GhostDummy - tlastcfa @ >tempdp dodoes, tempdp> ; + >space here >r ghostheader space> + ['] colon-resolved r@ >comp ! + r@ created >do:ghost ! r@ swap resolve + r> tlastcfa @ >tempdp dodoes, tempdp> ; +Defer instant-interpret-does>-hook ' noop IS instant-interpret-does>-hook -Defer instant-interpret-does>-hook +T has? primcentric H [IF] +: does-resolved ( ghost -- ) + compile does-exec g>xt T a, H ; +[ELSE] +: does-resolved ( ghost -- ) + g>xt T a, H ; +[THEN] : resolve-does>-part ( -- ) \ resolve words made by builders Last-Header-Ghost @ >do:ghost @ ?dup - IF there resolve - \ TODO: set special DOES> resolver action here - THEN ; + IF there resolve THEN ; >TARGET Cond: DOES> - compile (does>) doeshandler, - resolve-does>-part + T here H [ T has? primcentric H [IF] ] 5 [ [ELSE] ] 4 [ [THEN] ] T cells + H + alit, compile (does>2) compile ;s + doeshandler, resolve-does>-part ;Cond -: DOES> switchrom doeshandler, T here H !does - instant-interpret-does>-hook - depth T ] H ; +: DOES> + ['] does-resolved created >comp ! + switchrom doeshandler, T here H !does + instant-interpret-does>-hook + depth T ] H ; >CROSS \ Creation 01nov92py @@ -2463,7 +2668,6 @@ Cond: DOES> ghost to built built >created @ 0= IF built >created on - ['] prim-resolved built >comp ! THEN ; : gdoes, ( ghost -- ) @@ -2483,8 +2687,8 @@ Cond: DOES> ; : takeover-x-semantics ( S constructor-ghost new-ghost -- ) -\g stores execution semantic and compilation semantic in the built word - swap >do:ghost @ + \g stores execution semantic and compilation semantic in the built word + swap >do:ghost @ 2dup swap >do:ghost ! \ we use the >exec2 field for the semantic of a created word, \ using exec or exec2 makes no difference for normal cross-compilation \ but is usefull for instant where the exec field is already @@ -2492,12 +2696,20 @@ Cond: DOES> 2dup >exec @ swap >exec2 ! >comp @ swap >comp ! ; +0 Value createhere + +: create-resolve ( -- ) + created createhere resolve 0 ;Resolve ! ; +: create-resolve-immediate ( -- ) + create-resolve T immediate H ; + : TCreate ( -- ) create-forward-warn IF ['] reswarn-forward IS resolve-warning THEN executed-ghost @ (Theader - dup >created on - 2dup takeover-x-semantics hereresolve gdoes, ; + dup >created on dup to created + 2dup takeover-x-semantics + there to createhere drop gdoes, ; : RTCreate ( -- ) \ creates a new word with code-field in ram @@ -2505,14 +2717,14 @@ Cond: DOES> IF ['] reswarn-forward IS resolve-warning THEN \ make Alias executed-ghost @ (THeader - dup >created on + dup >created on dup to created 2dup takeover-x-semantics there 0 T a, H alias-mask flag! \ store poiter to code-field switchram T cfalign H there swap T ! H there tlastcfa ! - hereresolve gdoes, ; + there to createhere drop gdoes, ; : Build: ( -- [xt] [colon-sys] ) :noname postpone TCreate ; @@ -2526,7 +2738,11 @@ Cond: DOES> [ [THEN] ] ; : ;Build - postpone ; built >exec ! ; immediate + postpone create-resolve postpone ; built >exec ! ; immediate + +: ;Build-immediate + postpone create-resolve-immediate + postpone ; built >exec ! ; immediate : gdoes> ( ghost -- addr flag ) executed-ghost @ g>body ; @@ -2609,20 +2825,43 @@ by Create \ User variables 04may94py -Variable tup 0 tup ! -Variable tudp 0 tudp ! +: tup@ user-region >rstart @ ; + +\ Variable tup 0 tup ! +\ Variable tudp 0 tudp ! : u, ( n -- udp ) - tup @ tudp @ + T ! H - tudp @ dup T cell+ H tudp ! ; + current-region >r user-region activate + X here swap X , tup@ - + r> activate ; : au, ( n -- udp ) - tup @ tudp @ + T A! H - tudp @ dup T cell+ H tudp ! ; + current-region >r user-region activate + X here swap X a, tup@ - + r> activate ; + +T has? no-userspace H [IF] + +: buildby + ghost >exec @ built >exec ! ; + +Builder User +buildby Variable +by Variable + +Builder 2User +buildby 2Variable +by 2Variable + +Builder AUser +buildby AVariable +by AVariable + +[ELSE] Builder User Build: 0 u, X , ;Build -by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO +by: :douser ( ghost -- up-addr ) X @ tup@ + ;DO Builder 2User Build: 0 u, X , 0 u, drop ;Build @@ -2632,9 +2871,24 @@ Builder AUser Build: 0 au, X , ;Build by User +[THEN] + +T has? rom H [IF] Builder (Value) Build: ( n -- ) ;Build -by: :docon ( target-body-addr -- n ) T @ H ;DO +by: :dovalue ( target-body-addr -- n ) T @ @ H ;DO + +Builder Value +Build: T here 0 A, H switchram T align here swap ! , H ;Build +by (Value) + +Builder AValue +Build: T here 0 A, H switchram T align here swap ! A, H ;Build +by (Value) +[ELSE] +Builder (Value) +Build: ( n -- ) ;Build +by: :dovalue ( target-body-addr -- n ) T @ H ;DO Builder Value BuildSmart: T , H ;Build @@ -2643,15 +2897,21 @@ by (Value) Builder AValue BuildSmart: T A, H ;Build by (Value) +[THEN] Defer texecute Builder Defer -BuildSmart: ( -- ) [T'] noop T A, H ;Build -by: :dodefer ( ghost -- ) X @ texecute ;DO +T has? rom H [IF] + Build: ( -- ) T here 0 A, H switchram T align here swap ! H [T'] noop T A, H ( switchrom ) ;Build + by: :dodefer ( ghost -- ) X @ X @ texecute ;DO +[ELSE] + BuildSmart: ( -- ) [T'] noop T A, H ;Build + by: :dodefer ( ghost -- ) X @ texecute ;DO +[THEN] Builder interpret/compile: -Build: ( inter comp -- ) swap T immediate A, A, H ;Build +Build: ( inter comp -- ) swap T A, A, H ;Build-immediate DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO \ Sturctures 23feb95py @@ -2694,17 +2954,27 @@ DO: abort" Not in cross mode" ;DO \ this section defines different compilation \ actions for created words \ this will help the peephole optimizer -\ I (jaw) took this from bernds lates cross-compiler +\ I (jaw) took this from bernds latest cross-compiler \ changes but seperated it from the original \ Builder words. The final plan is to put this \ into a seperate file, together with the peephole \ optimizer for cross -T has? peephole H [IF] +T has? primcentric H [IF] + +\ .( loading peephole optimization) cr >CROSS + : (callc) compile call T >body a, H ; ' (callc) plugin-of colon, +: (callcm) T here 0 a, 0 a, H ; ' (callcm) plugin-of colonmark, +: (call-res) >tempdp resolved gexecute tempdp> drop ; + ' (call-res) plugin-of colon-resolve +: (pprim) dup 0< IF $4000 - ELSE + cr ." wrong usage of (prim) " + dup gdiscover IF .ghost ELSE . THEN cr -1 throw THEN + T a, H ; ' (pprim) plugin-of prim, \ if we want this, we have to spilt aconstant \ and constant!! @@ -2712,23 +2982,32 @@ T has? peephole H [IF] \ compile: g>body X @ lit, ;compile Builder (Constant) -compile: g>body alit, compile @ ;compile +compile: g>body compile lit@ T a, H ;compile Builder (Value) -compile: g>body alit, compile @ ;compile +compile: g>body compile lit@ T a, H ;compile \ this changes also Variable, AVariable and 2Variable Builder Create -\ compile: g>body alit, ;compile +compile: g>body alit, ;compile Builder User compile: g>body compile useraddr T @ , H ;compile Builder Defer -compile: g>body alit, compile @ compile execute ;compile +compile: g>body compile lit-perform T A, H ;compile Builder (Field) -compile: g>body T @ H lit, compile + ;compile +compile: g>body T @ H compile lit+ T , H ;compile + +Builder interpret/compile: +compile: does-resolved ;compile + +Builder input-method +compile: does-resolved ;compile + +Builder input-var +compile: does-resolved ;compile [THEN] @@ -2748,23 +3027,23 @@ compile: g>body T @ H lit, compile + ;co : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ; -: branchoffset ( src dest -- ) - tchar / ; \ ?? jaw - -: >resolve ( sys -- ) - X here ( dup ." >" hex. ) over branchoffset swap X ! ; - -: body T @ H lit, compile + ;co Variable tleavings 0 tleavings ! -: (done) ( addr -- ) +: (done) ( do-addr -- ) +\G resolve branches of leave and ?leave and ?do +\G do-addr is the address of the beginning of our +\G loop so we can take care of nested loops tleavings @ BEGIN dup WHILE @@ -2832,7 +3114,10 @@ Cond: ?LEAVE ?leave, ;Cond 0 DO dup @ swap 1 cells - LOOP free throw ; -: loop] branchto, dup r ahead, there 2r> ht-mem, X align + >r then, r> compile ALiteral compile Literal compile type ;Cond +Cond: S" '" parse tuck 2>r ahead, there 2r> ht-mem, X align + >r then, r> compile ALiteral compile Literal ;Cond +Cond: C" ahead, there [char] " parse ht-string, X align + >r then, r> compile ALiteral ;Cond +Cond: ABORT" if, ahead, there [char] " parse ht-string, X align + >r then, r> compile ALiteral compile c(abort") then, ;Cond +[THEN] + +X has? rom [IF] +Cond: IS T ' >body @ H compile ALiteral compile ! ;Cond +: IS T >address ' >body @ ! H ; +Cond: TO T ' >body @ H compile ALiteral compile ! ;Cond +: TO T ' >body @ ! H ; +Cond: CTO T ' >body H compile ALiteral compile ! ;Cond +: CTO T ' >body ! H ; +[ELSE] Cond: IS T ' >body H compile ALiteral compile ! ;Cond : IS T >address ' >body ! H ; Cond: TO T ' >body H compile ALiteral compile ! ;Cond : TO T ' >body ! H ; +[THEN] Cond: defers T ' >body @ compile, H ;Cond @@ -2981,14 +3286,14 @@ Cond: postpone ( -- ) \ name ABORT" CROSS: Can't postpone on forward declaration" dup >magic @ = IF (gexecute) - ELSE compile (compile) addr, THEN ;Cond + ELSE >link @ alit, compile compile, THEN ;Cond \ save-cross 17mar93py hex >CROSS -Create magic s" Gforth2x" here over allot swap move +Create magic s" Gforth3x" here over allot swap move bigendian 1+ \ strangely, in magic big=0, little=1 tcell 1 = 0 and or @@ -3002,9 +3307,10 @@ tchar 8 = 78 and or magic 7 + c! : save-cross ( "image-name" "binary-name" -- ) + .regions \ s" ec" X $has? IF .regions THEN bl parse ." Saving to " 2dup type cr w/o bin create-file throw >r - TNIL IF + s" header" X $has? IF s" #! " r@ write-file throw bl parse r@ write-file throw s" --image-file" r@ write-file throw @@ -3018,10 +3324,11 @@ magic 7 + c! ELSE bl parse 2drop THEN - image @ there + >rom dictionary >rmem @ there + s" rom" X $has? IF dictionary >rstart @ - THEN r@ write-file throw \ write image - TNIL IF - bit$ @ there 1- tcell>bit rshift 1+ + s" relocate" X $has? IF + dictionary >rbm @ there 1- tcell>bit rshift 1+ r@ write-file throw \ write tags THEN r> close-file throw ; @@ -3177,7 +3484,7 @@ Variable outfile-fd dup @ dup IF addr-refs @ THEN swap >r over align+ tuck tcell swap - rshift swap 0 - DO dup 1 and + ?DO dup 1 and IF drop rdrop snl-calc UNLOOP EXIT THEN 2/ swap 1+ swap LOOP @@ -3264,17 +3571,17 @@ Create parsed 20 chars allot \ store wor 1 BEGIN BEGIN bl word count dup WHILE comment? 20 umin parsed place upcase parsed count - 2dup s" [IF]" compare 0= >r - 2dup s" [IFUNDEF]" compare 0= >r - 2dup s" [IFDEF]" compare 0= r> or r> or + 2dup s" [IF]" str= >r + 2dup s" [IFUNDEF]" str= >r + 2dup s" [IFDEF]" str= r> or r> or IF 2drop 1+ - ELSE 2dup s" [ELSE]" compare 0= + ELSE 2dup s" [ELSE]" str= IF 2drop 1- dup IF 1+ THEN ELSE - 2dup s" [ENDIF]" compare 0= >r - s" [THEN]" compare 0= r> or + 2dup s" [ENDIF]" str= >r + s" [THEN]" str= r> or IF 1- THEN THEN THEN @@ -3322,7 +3629,7 @@ Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond IF >in ! X : ELSE drop BEGIN bl word dup c@ - IF count comment? s" ;" compare 0= ?EXIT + IF count comment? s" ;" str= ?EXIT ELSE refill 0= ABORT" CROSS: Out of Input while C:" THEN AGAIN @@ -3330,18 +3637,26 @@ Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond : d? d? ; +: \D ( -- "debugswitch" ) \G doesn't skip line when debug switch is on -: \D D? 0= IF postpone \ THEN ; + D? 0= IF postpone \ THEN ; +: \- ( -- "wordname" ) \G interprets the line if word is not defined -: \- tdefined? IF postpone \ THEN ; + tdefined? IF postpone \ THEN ; +: \+ ( -- "wordname" ) \G interprets the line if word is defined -: \+ tdefined? 0= IF postpone \ THEN ; + tdefined? 0= IF postpone \ THEN ; + +: \? ( -- "envorinstring" ) +\G Skip line if environmental variable evaluates to false + X has? 0= IF postpone \ THEN ; Cond: \- \- ;Cond Cond: \+ \+ ;Cond Cond: \D \D ;Cond +Cond: \? \? ;Cond : ?? bl word find IF execute ELSE drop 0 THEN ; @@ -3405,14 +3720,21 @@ previous : * * ; : / / ; : dup dup ; +: ?dup ?dup ; : over over ; : swap swap ; : rot rot ; : drop drop ; +: 2drop 2drop ; : = = ; +: <> <> ; : 0= 0= ; : lshift lshift ; : 2/ 2/ ; +: hex. base @ $10 base ! swap . base ! ; +: invert invert ; +: linkstring ( addr u n addr -- ) + X here over X @ X , swap X ! X , ht-string, X align ; \ : . . ; : all-words ['] forced? IS skip? ; @@ -3428,6 +3750,11 @@ previous : require require ; : needs require ; : .( [char] ) parse type ; +: ERROR" [char] " parse + rot + IF cr ." *** " type ." ***" -1 ABORT" CROSS: Target error, see text above" + ELSE 2drop + THEN ; : ." [char] " parse type ; : cr cr ; @@ -3447,12 +3774,12 @@ previous : doc-on true to-doc ! ; : declareunique ( "name" -- ) -\G Sets the unique flag for a ghost. The assembler output -\G generates labels with the ghostname concatenated with the address -\G while cross-compiling. The address is concatenated -\G because we have double occurences of the same name. -\G If we want to reference the labels from the assembler or C -\G code we declare them unique, so the address is skipped. +\ Sets the unique flag for a ghost. The assembler output +\ generates labels with the ghostname concatenated with the address +\ while cross-compiling. The address is concatenated +\ because we have double occurences of the same name. +\ If we want to reference the labels from the assembler or C +\ code we declare them unique, so the address is skipped. Ghost >ghost-flags dup @ or swap ! ; \ [IFDEF] dbg : dbg dbg ; [THEN] @@ -3464,10 +3791,10 @@ previous \ : words also ghosts \ words previous ; : .s .s ; +: depth depth ; : bye bye ; \ dummy -: group 0 word drop ; \ turnkey direction : H forth ; immediate @@ -3507,6 +3834,3 @@ UNLOCK >CROSS [IFDEF] extend-cross extend-cross [THEN] LOCK - - -