version 1.10, 1994/08/25 15:25:20
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version 1.15, 1994/11/15 15:55:34
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\ 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 |
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\ Log: |
\ Log: |
\ changed in ; [ to state off 12may93jaw |
\ changed in ; [ to state off 12may93jaw |
Line 40 VARIABLE GhostNames
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Line 40 VARIABLE GhostNames
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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 ; |
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Line 84 Variable tdp
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Line 84 Variable tdp
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\ Parameter for target systems 06oct92py |
\ Parameter for target systems 06oct92py |
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include-file |
included |
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>TARGET |
>TARGET |
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Line 110 include-file
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Line 110 include-file
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>CROSS |
>CROSS |
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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 |
Line 220 Variable atonce atonce off
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Line 220 Variable atonce atonce off
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: >magic ; : >link cell+ ; : >exec cell+ cell+ ; |
: >magic ; : >link cell+ ; : >exec cell+ cell+ ; |
: >end 3 cells + ; |
: >end 3 cells + ; |
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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 ; |
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\ ghost words 14oct92py |
\ ghost words 14oct92py |
\ changed: 10may93py/jaw |
\ changed: 10may93py/jaw |
Line 233 Variable atonce atonce off
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Line 234 Variable atonce atonce off
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\ 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> ; |
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\ set-order r> r@ IF >body THEN r> ; |
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VARIABLE Already |
VARIABLE Already |
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: 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 ; |
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\ resolve 14oct92py |
\ resolve 14oct92py |
Line 298 variable ResolveFlag
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Line 297 variable ResolveFlag
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WHILE dup ?resolved |
WHILE dup ?resolved |
REPEAT drop ResolveFlag @ |
REPEAT drop ResolveFlag @ |
IF |
IF |
1 (bye) |
abort" Unresolved words!" |
ELSE |
ELSE |
." Nothing!" |
." Nothing!" |
THEN |
THEN |
Line 329 VARIABLE ^imm
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Line 328 VARIABLE ^imm
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: 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 ) ; |
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VARIABLE CreateFlag CreateFlag off |
VARIABLE CreateFlag CreateFlag off |
Line 350 VARIABLE CreateFlag CreateFlag off
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Line 349 VARIABLE CreateFlag CreateFlag off
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VARIABLE ;Resolve 1 cells allot |
VARIABLE ;Resolve 1 cells allot |
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: Theader ( "name" -- ) (THeader there resolve 0 ;Resolve ! ; |
: Theader ( "name" -- ghost ) |
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(THeader dup there resolve 0 ;Resolve ! ; |
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>TARGET |
>TARGET |
: Alias ( cfa -- ) \ name |
: Alias ( cfa -- ) \ name |
Line 396 ghost '
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Line 396 ghost '
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: 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 |
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>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 @ ; |
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Cond: ['] compile lit ghost gexecute ;Cond |
Cond: ['] compile lit ghost gexecute ;Cond |
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Cond: chars ;Cond |
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>CROSS |
>CROSS |
\ tLiteral 12dec92py |
\ tLiteral 12dec92py |
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Line 440 Cond: [Char] ( "<char>" -- ) restrict
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Line 442 Cond: [Char] ( "<char>" -- ) restrict
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: ] 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 |
Line 487 Cond: DOES> restrict?
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Line 489 Cond: DOES> restrict?
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>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 ; |
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: 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 ; |
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: TCreate ( ghost -- ) |
: TCreate ( -- ) |
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last-ghost @ |
CreateFlag on |
CreateFlag on |
Theader dup gdoes, |
Theader >r dup gdoes, |
>end @ >exec @ execute ; |
>end @ >exec @ r> >exec ! ; |
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: Build: ( -- [xt] [colon-sys] ) |
: Build: ( -- [xt] [colon-sys] ) |
:noname postpone TCreate ; |
:noname postpone TCreate ; |
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: gdoes> ( ghost -- addr flag ) |
: gdoes> ( ghost -- addr flag ) |
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last-ghost @ |
state @ IF gexecute true EXIT THEN |
state @ IF gexecute true EXIT THEN |
cell+ @ T >body H false ; |
cell+ @ T >body H false ; |
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\ DO: ;DO 11may93jaw |
\ DO: ;DO 11may93jaw |
\ changed to ?EXIT 10may93jaw |
\ changed to ?EXIT 10may93jaw |
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: (does>) postpone does> ; immediate \ second level does> |
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: 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 ; |
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: ;DO ( addr [xt] [colon-sys] -- ) |
: ;DO ( addr [xt] [colon-sys] -- ) |
postpone ; ( S addr xt ) |
postpone ; ( S addr xt ) |
Line 671 Cond: TO T ' >body H compile ALit
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Line 672 Cond: TO T ' >body H compile ALit
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\ compile must be last 22feb93py |
\ compile must be last 22feb93py |
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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 |
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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 |
Line 692 also minimal
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Line 693 also minimal
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\ define new [IFDEF] and [IFUNDEF] 20may93jaw |
\ define new [IFDEF] and [IFUNDEF] 20may93jaw |
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: there? name gfind IF >magic @ <fwd> <> ELSE drop false THEN ; |
: there? bl word gfind IF >magic @ <fwd> <> ELSE drop false THEN ; |
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: [IFDEF] there? postpone [IF] ; |
: [IFDEF] there? postpone [IF] ; |
: [IFUNDEF] there? 0= postpone [IF] ; |
: [IFUNDEF] there? 0= postpone [IF] ; |
Line 732 Cond: [ELSE] [ELSE] ;Cond
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Line 733 Cond: [ELSE] [ELSE] ;Cond
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\ [THEN] |
\ [THEN] |
\ included throw after create-file 11may93jaw |
\ included throw after create-file 11may93jaw |
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endian Constant endian |
bigendian Constant bigendian |
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: save-cross ( "name" -- ) |
: save-cross ( "name" -- ) |
bl parse ." Saving to " 2dup type |
bl parse ." Saving to " 2dup type |
Line 745 endian Constant endian
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Line 746 endian Constant endian
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: + + ; : 1- 1- ; |
: + + ; : 1- 1- ; |
: - - ; : 2* 2* ; |
: - - ; : 2* 2* ; |
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: * * ; : / / ; |
: dup dup ; : over over ; |
: dup dup ; : over over ; |
: swap swap ; : rot rot ; |
: swap swap ; : rot rot ; |
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: drop drop ; |
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: lshift lshift ; : 2/ 2/ ; |
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cell constant cell |
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\ include bug5.fs |
\ include bug5.fs |
\ only forth also minimal definitions |
\ only forth also minimal definitions |