version 1.14, 1994/10/24 19:15:53
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version 1.29, 1995/10/07 17:38:11
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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 23
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Line 23
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\ include other.fs \ ansforth extentions for cross |
\ include other.fs \ ansforth extentions for cross |
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: string, ( c-addr u -- ) |
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\ puts down string as cstring |
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dup c, here swap chars dup allot move ; |
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' falign Alias cfalign |
: comment? ( c-addr u -- c-addr u ) |
: comment? ( c-addr u -- c-addr u ) |
2dup s" (" compare 0= |
2dup s" (" compare 0= |
IF postpone ( |
IF postpone ( |
Line 39 decimal
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Line 43 decimal
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VARIABLE GhostNames |
VARIABLE GhostNames |
0 GhostNames ! |
0 GhostNames ! |
: GhostName ( -- addr ) |
: GhostName ( -- addr ) |
here GhostNames @ , GhostNames ! here 0 , |
here GhostNames @ , GhostNames ! here 0 , |
bl word count |
bl word count |
\ 2dup type space |
\ 2dup type space |
dup c, here over chars allot swap move align ; |
string, cfalign ; |
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hex |
hex |
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Line 86 Variable tdp
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Line 90 Variable tdp
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included |
included |
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\ Create additional parameters 19jan95py |
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T |
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cell Constant tcell |
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cell<< Constant tcell<< |
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cell>bit Constant tcell>bit |
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bits/byte Constant tbits/byte |
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float Constant tfloat |
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1 bits/byte lshift Constant maxbyte |
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H |
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>TARGET |
>TARGET |
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\ Byte ordering and cell size 06oct92py |
\ Byte ordering and cell size 06oct92py |
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: cell+ cell + ; |
: cell+ tcell + ; |
: cells cell<< lshift ; |
: cells tcell<< lshift ; |
: chars ; |
: chars ; |
: floats float * ; |
: floats tfloat * ; |
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>CROSS |
>CROSS |
: cell/ cell<< rshift ; |
: cell/ tcell<< rshift ; |
>TARGET |
>TARGET |
20 CONSTANT bl |
20 CONSTANT bl |
-1 Constant NIL |
-1 Constant NIL |
Line 105 included
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Line 120 included
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-4 Constant :dovar |
-4 Constant :dovar |
-5 Constant :douser |
-5 Constant :douser |
-6 Constant :dodefer |
-6 Constant :dodefer |
-7 Constant :dodoes |
-7 Constant :dofield |
-8 Constant :doesjump |
-8 Constant :dodoes |
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-9 Constant :doesjump |
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>CROSS |
>CROSS |
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bigendian 0 pad ! -1 pad c! pad @ 0< |
bigendian |
= [IF] : bswap ; immediate |
[IF] |
[ELSE] : bswap ( big / little -- little / big ) 0 |
: T! ( n addr -- ) >r s>d r> tcell bounds swap 1- |
cell 1- FOR bits/byte lshift over |
DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; |
[ 1 bits/byte lshift 1- ] Literal and or |
: T@ ( addr -- n ) >r 0 0 r> tcell bounds |
swap bits/byte rshift swap NEXT nip ; |
DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ; |
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[ELSE] |
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: T! ( n addr -- ) >r s>d r> tcell bounds |
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DO maxbyte ud/mod rot I c! LOOP 2drop ; |
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: T@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1- |
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DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ; |
[THEN] |
[THEN] |
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\ Memory initialisation 05dec92py |
\ Memory initialisation 05dec92py |
Line 156 CREATE Bittable 80 c, 40 c, 20 c, 10 c,
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Line 177 CREATE Bittable 80 c, 40 c, 20 c, 10 c,
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: align+ ( taddr -- rest ) |
: align+ ( taddr -- rest ) |
cell tuck 1- and - [ cell 1- ] Literal and ; |
cell tuck 1- and - [ cell 1- ] Literal and ; |
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: cfalign+ ( taddr -- rest ) |
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\ see kernal.fs:cfaligned |
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float tuck 1- and - [ float 1- ] Literal and ; |
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>TARGET |
>TARGET |
: aligned ( taddr -- ta-addr ) dup align+ + ; |
: aligned ( taddr -- ta-addr ) dup align+ + ; |
\ assumes cell alignment granularity (as GNU C) |
\ assumes cell alignment granularity (as GNU C) |
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: cfaligned ( taddr1 -- taddr2 ) |
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\ see kernal.fs |
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dup cfalign+ + ; |
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>CROSS |
>CROSS |
: >image ( taddr -- absaddr ) image @ + ; |
: >image ( taddr -- absaddr ) image @ + ; |
>TARGET |
>TARGET |
: @ ( taddr -- w ) >image @ bswap ; |
: @ ( taddr -- w ) >image t@ ; |
: ! ( w taddr -- ) >r bswap r> >image ! ; |
: ! ( w taddr -- ) >image t! ; |
: c@ ( taddr -- char ) >image c@ ; |
: c@ ( taddr -- char ) >image c@ ; |
: c! ( char taddr -- ) >image c! ; |
: c! ( char taddr -- ) >image c! ; |
: 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; |
: 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; |
Line 179 CREATE Bittable 80 c, 40 c, 20 c, 10 c,
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Line 207 CREATE Bittable 80 c, 40 c, 20 c, 10 c,
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: , ( w -- ) T here H cell T allot ! H ; |
: , ( w -- ) T here H cell T allot ! H ; |
: c, ( char -- ) T here 1 allot c! H ; |
: c, ( char -- ) T here 1 allot c! H ; |
: align ( -- ) T here H align+ 0 ?DO bl T c, H LOOP ; |
: align ( -- ) T here H align+ 0 ?DO bl T c, H LOOP ; |
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: cfalign ( -- ) |
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T here H cfalign+ 0 ?DO bl T c, H LOOP ; |
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: A! dup relon T ! H ; |
: A! dup relon T ! H ; |
: A, ( w -- ) T here H relon T , H ; |
: A, ( w -- ) T here H relon T , H ; |
Line 256 VARIABLE Already
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Line 286 VARIABLE Already
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BEGIN @ dup |
BEGIN @ dup |
WHILE 2dup cell+ @ = |
WHILE 2dup cell+ @ = |
UNTIL |
UNTIL |
nip 2 cells + count cr ." CROSS: Exists: " type 4 spaces |
2 cells + count cr ." CROSS: Exists: " type 4 spaces drop |
swap cell+ ! |
swap cell+ ! |
ELSE true ABORT" CROSS: Ghostnames inconsistent" |
ELSE true abort" CROSS: Ghostnames inconsistent " |
THEN ; |
THEN ; |
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: resolve ( ghost tcfa -- ) |
: resolve ( ghost tcfa -- ) |
Line 312 VARIABLE ^imm
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Line 342 VARIABLE ^imm
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>TARGET |
>TARGET |
: immediate 20 flag! |
: immediate 20 flag! |
^imm @ @ dup <imm> = ?EXIT |
^imm @ @ dup <imm> = IF drop EXIT THEN |
<res> <> ABORT" CROSS: Cannot immediate a unresolved word" |
<res> <> ABORT" CROSS: Cannot immediate a unresolved word" |
<imm> ^imm @ ! ; |
<imm> ^imm @ ! ; |
: restrict 40 flag! ; |
: restrict 40 flag! ; |
Line 322 VARIABLE ^imm
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Line 352 VARIABLE ^imm
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: ALIAS2 create here 0 , DOES> @ execute ; |
: ALIAS2 create here 0 , DOES> @ execute ; |
\ usage: |
\ usage: |
\ ' alias2 bla ! |
\ ' <name> alias2 bla ! |
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\ Target Header Creation 01nov92py |
\ Target Header Creation 01nov92py |
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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" -- ) bl word count string, T align H ; |
: name, ( "name" -- ) bl word count string, T cfalign H ; |
: view, ( -- ) ( dummy ) ; |
: view, ( -- ) ( dummy ) ; |
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\ Target Document Creation (goes to crossdoc.fd) 05jul95py |
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s" crossdoc.fd" r/w create-file throw value doc-file-id |
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\ contains the file-id of the documentation file |
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: \G ( -- ) |
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source >in @ /string doc-file-id write-line throw |
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source >in ! drop ; immediate |
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Variable to-doc |
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: cross-doc-entry ( -- ) |
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to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header |
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IF |
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s" " doc-file-id write-line throw |
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s" make-doc " doc-file-id write-file throw |
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tlast @ >image count $1F and doc-file-id write-file throw |
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>in @ |
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[char] ( parse 2drop |
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[char] ) parse doc-file-id write-file throw |
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s" )" doc-file-id write-file throw |
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[char] \ parse 2drop |
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POSTPONE \g |
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>in ! |
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THEN to-doc on ; |
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\ Target TAGS creation |
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s" TAGS" r/w create-file throw value tag-file-id |
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\ contains the file-id of the tags file |
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Create tag-beg 2 c, 7F c, bl c, |
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Create tag-end 2 c, bl c, 01 c, |
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Create tag-bof 1 c, 0C c, |
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2variable last-loadfilename 0 0 last-loadfilename 2! |
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: put-load-file-name ( -- ) |
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loadfilename 2@ last-loadfilename 2@ d<> |
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IF |
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tag-bof count tag-file-id write-line throw |
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loadfilename 2@ 2dup |
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tag-file-id write-file throw |
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last-loadfilename 2! |
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s" ,0" tag-file-id write-line throw |
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THEN ; |
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: cross-tag-entry ( -- ) |
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tlast @ 0<> \ not an anonymous (i.e. noname) header |
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IF |
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put-load-file-name |
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source >in @ min tag-file-id write-file throw |
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tag-beg count tag-file-id write-file throw |
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tlast @ >image count $1F and tag-file-id write-file throw |
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tag-end count tag-file-id write-file throw |
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base @ decimal loadline @ 0 <# #s #> tag-file-id write-file throw |
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\ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw |
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s" ,0" tag-file-id write-line throw |
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base ! |
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THEN ; |
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\ Target header creation |
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VARIABLE CreateFlag CreateFlag off |
VARIABLE CreateFlag CreateFlag off |
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: (Theader ( "name" -- ghost ) T align H view, |
: (Theader ( "name" -- ghost ) T align H view, |
tlast @ dup 0> IF T 1 cells - THEN A, H there tlast ! |
tlast @ dup 0> IF T 1 cells - THEN A, H there tlast ! |
>in @ name, >in ! T here H tlastcfa ! |
>in @ name, >in ! T here H tlastcfa ! |
CreateFlag @ IF |
CreateFlag @ IF |
>in @ alias2 swap >in ! \ create alias in target |
>in @ alias2 swap >in ! \ create alias in target |
>in @ ghost swap >in ! |
>in @ ghost swap >in ! |
swap also ghosts ' previous swap ! \ tick ghost and store in alias |
swap also ghosts ' previous swap ! \ tick ghost and store in alias |
CreateFlag off |
CreateFlag off |
ELSE ghost THEN |
ELSE ghost THEN |
dup >magic ^imm ! \ a pointer for immediate |
dup >magic ^imm ! \ a pointer for immediate |
Already @ IF dup >end tdoes ! |
Already @ IF dup >end tdoes ! |
ELSE 0 tdoes ! THEN |
ELSE 0 tdoes ! THEN |
80 flag! ; |
80 flag! |
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cross-doc-entry cross-tag-entry ; |
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VARIABLE ;Resolve 1 cells allot |
VARIABLE ;Resolve 1 cells allot |
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Line 354 VARIABLE ;Resolve 1 cells allot
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Line 448 VARIABLE ;Resolve 1 cells allot
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>TARGET |
>TARGET |
: Alias ( cfa -- ) \ name |
: Alias ( cfa -- ) \ name |
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dup 0< IF to-doc off THEN |
(THeader over resolve T A, H 80 flag! ; |
(THeader over resolve T A, H 80 flag! ; |
>CROSS |
>CROSS |
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Line 388 ghost (loop) ghost (+loop)
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Line 483 ghost (loop) ghost (+loop)
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ghost (next) drop |
ghost (next) drop |
ghost unloop ghost ;S 2drop |
ghost unloop ghost ;S 2drop |
ghost lit ghost (compile) ghost ! 2drop drop |
ghost lit ghost (compile) ghost ! 2drop drop |
ghost (;code) ghost noop 2drop |
ghost (does>) ghost noop 2drop |
ghost (.") ghost (S") ghost (ABORT") 2drop drop |
ghost (.") ghost (S") ghost (ABORT") 2drop drop |
ghost ' |
ghost ' |
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Line 476 Cond: [ restrict? state off ;Cond
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Line 571 Cond: [ restrict? state off ;Cond
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>TARGET |
>TARGET |
Cond: DOES> restrict? |
Cond: DOES> restrict? |
compile (;code) dodoes, tdoes @ ?dup IF @ T here H resolve THEN |
compile (does>) dodoes, tdoes @ ?dup IF @ T here H resolve THEN |
;Cond |
;Cond |
: DOES> dodoes, T here H !does depth T ] H ; |
: DOES> dodoes, T here H !does depth T ] H ; |
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Line 547 Variable tup 0 tup !
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Line 642 Variable tup 0 tup !
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Variable tudp 0 tudp ! |
Variable tudp 0 tudp ! |
: u, ( n -- udp ) |
: u, ( n -- udp ) |
tup @ tudp @ + T ! H |
tup @ tudp @ + T ! H |
tudp @ dup cell+ tudp ! ; |
tudp @ dup T cell+ H tudp ! ; |
: au, ( n -- udp ) |
: au, ( n -- udp ) |
tup @ tudp @ + T A! H |
tup @ tudp @ + T A! H |
tudp @ dup cell+ tudp ! ; |
tudp @ dup T cell+ H tudp ! ; |
>TARGET |
>TARGET |
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Build: T 0 u, , H ; |
Build: T 0 u, , H ; |
Line 575 Build: ( n -- ) T A, H ;
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Line 670 Build: ( n -- ) T A, H ;
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by Constant |
by Constant |
Builder AConstant |
Builder AConstant |
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Build: ( d -- ) T , , H ; |
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DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO |
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Builder 2Constant |
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Build: T 0 , H ; |
Build: T 0 , H ; |
by Constant |
by Constant |
Builder Value |
Builder Value |
Line 584 DO: ( ghost -- ) ABORT" CROSS: Don't exe
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Line 683 DO: ( ghost -- ) ABORT" CROSS: Don't exe
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Builder Defer |
Builder Defer |
by Defer :dodefer resolve |
by Defer :dodefer resolve |
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\ Sturctures 23feb95py |
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>CROSS |
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: nalign ( addr1 n -- addr2 ) |
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\ addr2 is the aligned version of addr1 wrt the alignment size n |
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1- tuck + swap invert and ; |
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>TARGET |
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Build: >r rot r@ nalign dup T , H ( align1 size offset ) |
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+ swap r> nalign ; |
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DO: T @ H + ;DO |
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Builder Field |
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by Field :dofield resolve |
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: struct T 0 1 chars H ; |
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: end-struct T 2Constant H ; |
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: cells: ( n -- size align ) |
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T cells 1 cells H ; |
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\ ' 2Constant Alias2 end-struct |
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\ 0 1 T Chars H 2Constant struct |
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\ structural conditionals 17dec92py |
\ structural conditionals 17dec92py |
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>CROSS |
>CROSS |
Line 735 Cond: [ELSE] [ELSE] ;Cond
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Line 857 Cond: [ELSE] [ELSE] ;Cond
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bigendian Constant bigendian |
bigendian Constant bigendian |
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Create magic s" gforth00" here over allot swap move |
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[char] 1 bigendian + cell + magic 7 + c! |
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: 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 |
magic 8 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 |
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bit$ @ there 1- cell>bit rshift 1+ |
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r@ write-file throw \ write tags |
r> close-file throw ; |
r> close-file throw ; |
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\ words that should be in minimal |
\ words that should be in minimal |
Line 749 bigendian Constant bigendian
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Line 877 bigendian Constant bigendian
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: * * ; : / / ; |
: * * ; : / / ; |
: dup dup ; : over over ; |
: dup dup ; : over over ; |
: swap swap ; : rot rot ; |
: swap swap ; : rot rot ; |
: drop drop ; |
: drop drop ; : = = ; |
: lshift lshift ; : 2/ 2/ ; |
: lshift lshift ; : 2/ 2/ ; |
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: . . ; |
cell constant cell |
cell constant cell |
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\ include bug5.fs |
\ include bug5.fs |
\ only forth also minimal definitions |
\ only forth also minimal definitions |
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: \ postpone \ ; |
: \ postpone \ ; |
: ( postpone ( ; |
: \G postpone \G ; |
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: ( postpone ( ; |
: include bl word count included ; |
: include bl word count included ; |
: .( [char] ) parse type ; |
: .( [char] ) parse type ; |
: cr cr ; |
: cr cr ; |