| \ CROSS.FS The Cross-Compiler 06oct92py |
\ CROSS.FS The Cross-Compiler 06oct92py |
| \ $Id$ |
\ $Id$ |
| \ Idea and implementation: Bernd Paysan (py) |
\ Idea and implementation: Bernd Paysan (py) |
| \ Copyright 1992 by the ANSI figForth Development Group |
\ Copyright 1992-94 by the GNU Forth Development Group |
| |
|
| \ Log: |
\ Log: |
| \ changed in ; [ to state off 12may93jaw |
\ changed in ; [ to state off 12may93jaw |
| 0 GhostNames ! |
0 GhostNames ! |
| : GhostName ( -- addr ) |
: GhostName ( -- addr ) |
| here GhostNames @ , GhostNames ! here 0 , |
here GhostNames @ , GhostNames ! here 0 , |
| name count |
bl word count |
| \ 2dup type space |
\ 2dup type space |
| dup c, here over chars allot swap move align ; |
dup c, here over chars allot swap move align ; |
| |
|
| |
|
| \ Parameter for target systems 06oct92py |
\ Parameter for target systems 06oct92py |
| |
|
| include machine.fs |
included |
| |
|
| >TARGET |
>TARGET |
| |
|
| -3 Constant :docon |
-3 Constant :docon |
| -4 Constant :dovar |
-4 Constant :dovar |
| -5 Constant :douser |
-5 Constant :douser |
| -6 Constant :dodoes |
-6 Constant :dodefer |
| -7 Constant :doesjump |
-7 Constant :dodoes |
| |
-8 Constant :doesjump |
| |
|
| >CROSS |
>CROSS |
| |
|
| endian 0 pad ! -1 pad c! pad @ 0< |
bigendian 0 pad ! -1 pad c! pad @ 0< |
| = [IF] : bswap ; immediate |
= [IF] : bswap ; immediate |
| [ELSE] : bswap ( big / little -- little / big ) 0 |
[ELSE] : bswap ( big / little -- little / big ) 0 |
| cell 1- FOR bits/byte lshift over |
cell 1- FOR bits/byte lshift over |
| : >magic ; : >link cell+ ; : >exec cell+ cell+ ; |
: >magic ; : >link cell+ ; : >exec cell+ cell+ ; |
| : >end 3 cells + ; |
: >end 3 cells + ; |
| |
|
| |
Variable last-ghost |
| : Make-Ghost ( "name" -- ghost ) |
: Make-Ghost ( "name" -- ghost ) |
| >in @ GhostName swap >in ! |
>in @ GhostName swap >in ! |
| <T Create atonce @ IF immediate atonce off THEN |
<T Create atonce @ IF immediate atonce off THEN |
| here tuck swap ! ghostheader T> |
here tuck swap ! ghostheader T> |
| DOES> >exec @ execute ; |
DOES> dup last-ghost ! >exec @ execute ; |
| |
|
| \ ghost words 14oct92py |
\ ghost words 14oct92py |
| \ changed: 10may93py/jaw |
\ changed: 10may93py/jaw |
| \ searches for string in word-list ghosts |
\ searches for string in word-list ghosts |
| \ !! wouldn't it be simpler to just use search-wordlist ? ae |
\ !! wouldn't it be simpler to just use search-wordlist ? ae |
| dup count [ ' ghosts >body ] ALiteral search-wordlist |
dup count [ ' ghosts >body ] ALiteral search-wordlist |
| \ >r get-order 0 set-order also ghosts r> find >r >r |
dup IF >r >body nip r> THEN ; |
| >r r@ IF >body nip THEN r> ; |
|
| \ set-order r> r@ IF >body THEN r> ; |
|
| |
|
| VARIABLE Already |
VARIABLE Already |
| |
|
| : ghost ( "name" -- ghost ) |
: ghost ( "name" -- ghost ) |
| Already off |
Already off |
| >in @ name gfind IF Already on nip EXIT THEN |
>in @ bl word gfind IF Already on nip EXIT THEN |
| drop >in ! Make-Ghost ; |
drop >in ! Make-Ghost ; |
| |
|
| \ resolve 14oct92py |
\ resolve 14oct92py |
| Ghostnames |
Ghostnames |
| BEGIN @ dup |
BEGIN @ dup |
| WHILE dup ?resolved |
WHILE dup ?resolved |
| REPEAT drop ResolveFlag @ 0= IF ." Nothing!" THEN cr ; |
REPEAT drop ResolveFlag @ |
| |
IF |
| |
abort" Unresolved words!" |
| |
ELSE |
| |
." Nothing!" |
| |
THEN |
| |
cr ; |
| |
|
| >CROSS |
>CROSS |
| \ Header states 12dec92py |
\ Header states 12dec92py |
| |
|
| : string, ( addr count -- ) |
: string, ( addr count -- ) |
| dup T c, H bounds DO I c@ T c, H LOOP ; |
dup T c, H bounds DO I c@ T c, H LOOP ; |
| : name, ( "name" -- ) name count string, T align H ; |
: name, ( "name" -- ) bl word count string, T align H ; |
| : view, ( -- ) ( dummy ) ; |
: view, ( -- ) ( dummy ) ; |
| |
|
| VARIABLE CreateFlag CreateFlag off |
VARIABLE CreateFlag CreateFlag off |
| |
|
| VARIABLE ;Resolve 1 cells allot |
VARIABLE ;Resolve 1 cells allot |
| |
|
| : Theader ( "name" -- ) (THeader there resolve 0 ;Resolve ! ; |
: Theader ( "name" -- ghost ) |
| |
(THeader dup there resolve 0 ;Resolve ! ; |
| |
|
| >TARGET |
>TARGET |
| : Alias ( cfa -- ) \ name |
: Alias ( cfa -- ) \ name |
| |
|
| : compile ( -- ) \ name |
: compile ( -- ) \ name |
| restrict? |
restrict? |
| name gfind dup 0= ABORT" CROSS: Can't compile " |
bl word gfind dup 0= ABORT" CROSS: Can't compile " |
| 0> ( immediate? ) |
0> ( immediate? ) |
| IF >exec @ compile, |
IF >exec @ compile, |
| ELSE postpone literal postpone gexecute THEN ; |
ELSE postpone literal postpone gexecute THEN ; |
| immediate |
immediate |
| |
|
| >TARGET |
>TARGET |
| : ' ( -- cfa ) name gfind 0= ABORT" CROSS: undefined " |
: ' ( -- cfa ) bl word gfind 0= ABORT" CROSS: undefined " |
| dup >magic @ <fwd> = ABORT" CROSS: forward " >link @ ; |
dup >magic @ <fwd> = ABORT" CROSS: forward " >link @ ; |
| |
|
| Cond: ['] compile lit ghost gexecute ;Cond |
Cond: ['] compile lit ghost gexecute ;Cond |
| |
|
| |
Cond: chars ;Cond |
| |
|
| >CROSS |
>CROSS |
| \ tLiteral 12dec92py |
\ tLiteral 12dec92py |
| |
|
| |
|
| : ] state on |
: ] state on |
| BEGIN |
BEGIN |
| BEGIN >in @ name |
BEGIN >in @ bl word |
| dup c@ 0= WHILE 2drop refill 0= |
dup c@ 0= WHILE 2drop refill 0= |
| ABORT" CROSS: End of file while target compiling" |
ABORT" CROSS: End of file while target compiling" |
| REPEAT |
REPEAT |
| >in @ alias2 swap dup >in ! >r >r |
>in @ alias2 swap dup >in ! >r >r |
| Make-Ghost rot swap >exec ! , |
Make-Ghost rot swap >exec ! , |
| r> r> >in ! |
r> r> >in ! |
| also ghosts ' previous swap ! |
also ghosts ' previous swap ! ; |
| DOES> dup >exec @ execute ; |
\ DOES> dup >exec @ execute ; |
| |
|
| : gdoes, ( ghost -- ) >end @ dup >magic @ <fwd> <> |
: gdoes, ( ghost -- ) >end @ dup >magic @ <fwd> <> |
| IF dup >link @ dup 0< IF T A, 0 , H drop EXIT THEN drop THEN |
IF dup >link @ dup 0< IF T A, 0 , H drop EXIT THEN drop THEN |
| :dodoes T A, H gexecute T here H cell - reloff ; |
:dodoes T A, H gexecute T here H cell - reloff ; |
| |
|
| : TCreate ( ghost -- ) |
: TCreate ( -- ) |
| |
last-ghost @ |
| CreateFlag on |
CreateFlag on |
| Theader dup gdoes, |
Theader >r dup gdoes, |
| >end @ >exec @ execute ; |
>end @ >exec @ r> >exec ! ; |
| |
|
| : Build: ( -- [xt] [colon-sys] ) |
: Build: ( -- [xt] [colon-sys] ) |
| :noname postpone TCreate ; |
:noname postpone TCreate ; |
| |
|
| : gdoes> ( ghost -- addr flag ) |
: gdoes> ( ghost -- addr flag ) |
| |
last-ghost @ |
| state @ IF gexecute true EXIT THEN |
state @ IF gexecute true EXIT THEN |
| cell+ @ T >body H false ; |
cell+ @ T >body H false ; |
| |
|
| \ DO: ;DO 11may93jaw |
\ DO: ;DO 11may93jaw |
| \ changed to ?EXIT 10may93jaw |
\ changed to ?EXIT 10may93jaw |
| |
|
| : (does>) postpone does> ; immediate \ second level does> |
|
| |
|
| : DO: ( -- addr [xt] [colon-sys] ) |
: DO: ( -- addr [xt] [colon-sys] ) |
| here ghostheader |
here ghostheader |
| :noname |
:noname postpone gdoes> postpone ?EXIT ; |
| postpone (does>) postpone gdoes> postpone ?EXIT ; |
|
| |
|
| : ;DO ( addr [xt] [colon-sys] -- ) |
: ;DO ( addr [xt] [colon-sys] -- ) |
| postpone ; ( S addr xt ) |
postpone ; ( S addr xt ) |
| Build: ( -- ) compile noop ; |
Build: ( -- ) compile noop ; |
| DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO |
DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO |
| Builder Defer |
Builder Defer |
| |
by Defer :dodefer resolve |
| |
|
| \ structural conditionals 17dec92py |
\ structural conditionals 17dec92py |
| |
|
| \ compile must be last 22feb93py |
\ compile must be last 22feb93py |
| |
|
| Cond: compile ( -- ) restrict? \ name |
Cond: compile ( -- ) restrict? \ name |
| name gfind dup 0= ABORT" CROSS: Can't compile" |
bl word gfind dup 0= ABORT" CROSS: Can't compile" |
| 0> IF gexecute |
0> IF gexecute |
| ELSE dup >magic @ <imm> = |
ELSE dup >magic @ <imm> = |
| IF gexecute |
IF gexecute |
| ELSE compile (compile) gexecute THEN THEN ;Cond |
ELSE compile (compile) gexecute THEN THEN ;Cond |
| |
|
| Cond: postpone ( -- ) restrict? \ name |
Cond: postpone ( -- ) restrict? \ name |
| name gfind dup 0= ABORT" CROSS: Can't compile" |
bl word gfind dup 0= ABORT" CROSS: Can't compile" |
| 0> IF gexecute |
0> IF gexecute |
| ELSE dup >magic @ <imm> = |
ELSE dup >magic @ <imm> = |
| IF gexecute |
IF gexecute |
| |
|
| \ define new [IFDEF] and [IFUNDEF] 20may93jaw |
\ define new [IFDEF] and [IFUNDEF] 20may93jaw |
| |
|
| : there? name gfind IF >magic @ <fwd> <> ELSE drop false THEN ; |
: there? bl word gfind IF >magic @ <fwd> <> ELSE drop false THEN ; |
| |
|
| : [IFDEF] there? postpone [IF] ; |
: [IFDEF] there? postpone [IF] ; |
| : [IFUNDEF] there? 0= postpone [IF] ; |
: [IFUNDEF] there? 0= postpone [IF] ; |
| \ [THEN] |
\ [THEN] |
| \ included throw after create-file 11may93jaw |
\ included throw after create-file 11may93jaw |
| |
|
| endian Constant endian |
bigendian Constant bigendian |
| |
|
| : save-cross ( "name" -- ) |
: save-cross ( "name" -- ) |
| bl parse ." Saving to " 2dup type |
bl parse ." Saving to " 2dup type |
| w/o bin create-file throw >r |
w/o bin create-file throw >r |
| image @ there r@ write-file throw |
s" gforth00" r@ write-file throw \ write magic |
| bit$ @ there 1- cell>bit rshift 1+ r@ write-file throw |
image @ there r@ write-file throw \ write image |
| |
bit$ @ there 1- cell>bit rshift 1+ |
| |
r@ write-file throw \ write tags |
| r> close-file throw ; |
r> close-file throw ; |
| |
|
| \ words that should be in minimal |
\ words that should be in minimal |
| |
|
| : + + ; : 1- 1- ; |
: + + ; : 1- 1- ; |
| : - - ; : 2* 2* ; |
: - - ; : 2* 2* ; |
| |
: * * ; : / / ; |
| : dup dup ; : over over ; |
: dup dup ; : over over ; |
| : swap swap ; : rot rot ; |
: swap swap ; : rot rot ; |
| |
: drop drop ; |
| |
: lshift lshift ; : 2/ 2/ ; |
| |
cell constant cell |
| |
|
| \ include bug5.fs |
\ include bug5.fs |
| \ only forth also minimal definitions |
\ only forth also minimal definitions |