version 1.12, 1994/09/09 16:27:17
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version 1.23, 1995/02/08 13:38:50
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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 , |
name 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 84 Variable tdp
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Line 88 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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\ 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 110 include-file
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Line 125 include-file
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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 176 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 206 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 234 Variable last-ghost
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Line 263 Variable last-ghost
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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 258 VARIABLE Already
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Line 285 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 ; |
Line 314 VARIABLE ^imm
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Line 341 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 324 VARIABLE ^imm
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Line 351 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" -- ) name count string, T align H ; |
: name, ( "name" -- ) bl word count string, T cfalign H ; |
: view, ( -- ) ( dummy ) ; |
: view, ( -- ) ( dummy ) ; |
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VARIABLE CreateFlag CreateFlag off |
VARIABLE CreateFlag CreateFlag off |
Line 339 VARIABLE CreateFlag CreateFlag off
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Line 366 VARIABLE CreateFlag CreateFlag off
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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 ! |
Line 398 ghost '
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Line 425 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 442 Cond: [Char] ( "<char>" -- ) restrict
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Line 471 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 547 Variable tup 0 tup !
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Line 576 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 672 Cond: TO T ' >body H compile ALit
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Line 701 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 693 also minimal
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Line 722 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 738 bigendian Constant bigendian
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Line 767 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 |
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 |
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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 780 bigendian Constant bigendian
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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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: . . ; |
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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 |