version 1.44, 1995/10/26 22:48:40
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version 1.49, 1995/11/30 18:01:48
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\ KERNAL.FS GForth kernal 17dec92py |
\ KERNAL.FS GForth kernal 17dec92py |
\ $ID: |
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\ Copyright (C) 1995 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
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\ Gforth is free software; you can redistribute it and/or |
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\ modify it under the terms of the GNU General Public License |
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\ as published by the Free Software Foundation; either version 2 |
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\ of the License, or (at your option) any later version. |
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\ This program is distributed in the hope that it will be useful, |
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\ but WITHOUT ANY WARRANTY; without even the implied warranty of |
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\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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\ GNU General Public License for more details. |
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\ You should have received a copy of the GNU General Public License |
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\ along with this program; if not, write to the Free Software |
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\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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\ Idea and implementation: Bernd Paysan (py) |
\ Idea and implementation: Bernd Paysan (py) |
\ Copyright 1992 by the ANSI figForth Development Group |
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\ Log: ', '- usw. durch [char] ... ersetzt |
\ Log: ', '- usw. durch [char] ... ersetzt |
\ man sollte die unterschiedlichen zahlensysteme |
\ man sollte die unterschiedlichen zahlensysteme |
Line 84 DOES> ( n -- ) + c@ ;
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Line 101 DOES> ( n -- ) + c@ ;
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: 2, ( w1 w2 -- ) \ gforth |
: 2, ( w1 w2 -- ) \ gforth |
here 2 cells allot 2! ; |
here 2 cells allot 2! ; |
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: aligned ( addr -- addr' ) \ core |
\ : aligned ( addr -- addr' ) \ core |
[ cell 1- ] Literal + [ -1 cells ] Literal and ; |
\ [ cell 1- ] Literal + [ -1 cells ] Literal and ; |
: align ( -- ) \ core |
: align ( -- ) \ core |
here dup aligned swap ?DO bl c, LOOP ; |
here dup aligned swap ?DO bl c, LOOP ; |
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: faligned ( addr -- f-addr ) \ float |
\ : faligned ( addr -- f-addr ) \ float |
[ 1 floats 1- ] Literal + [ -1 floats ] Literal and ; |
\ [ 1 floats 1- ] Literal + [ -1 floats ] Literal and ; |
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: falign ( -- ) \ float |
: falign ( -- ) \ float |
here dup faligned swap |
here dup faligned swap |
Line 1321 Defer key ( -- c ) \ core
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Line 1338 Defer key ( -- c ) \ core
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tib /line |
tib /line |
loadfile @ ?dup |
loadfile @ ?dup |
IF read-line throw |
IF read-line throw |
ELSE loadline @ 0< IF 2drop false EXIT THEN |
ELSE sourceline# 0< IF 2drop false EXIT THEN |
accept true |
accept true |
THEN |
THEN |
1 loadline +! |
1 loadline +! |
Line 1363 create nl$ 1 c, A c, 0 c, \ gnu includes
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Line 1380 create nl$ 1 c, A c, 0 c, \ gnu includes
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\ include-file 07apr93py |
\ include-file 07apr93py |
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: push-file ( -- ) r> |
: push-file ( -- ) r> |
loadline @ >r loadfile @ >r |
sourceline# >r loadfile @ >r |
blk @ >r >tib @ >r #tib @ dup >r >tib +! >in @ >r >r ; |
blk @ >r tibstack @ >r >tib @ >r #tib @ >r |
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>tib @ tibstack @ = IF r@ tibstack +! THEN |
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tibstack @ >tib ! >in @ >r >r ; |
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: pop-file ( throw-code -- throw-code ) |
: pop-file ( throw-code -- throw-code ) |
dup IF |
dup IF |
source >in @ loadline @ loadfilename 2@ |
source >in @ sourceline# sourcefilename |
error-stack dup @ dup 1+ |
error-stack dup @ dup 1+ |
max-errors 1- min error-stack ! |
max-errors 1- min error-stack ! |
6 * cells + cell+ |
6 * cells + cell+ |
Line 1377 create nl$ 1 c, A c, 0 c, \ gnu includes
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Line 1396 create nl$ 1 c, A c, 0 c, \ gnu includes
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-1 cells +LOOP |
-1 cells +LOOP |
THEN |
THEN |
r> |
r> |
r> >in ! r> #tib ! r> >tib ! r> blk ! |
r> >in ! r> #tib ! r> >tib ! r> tibstack ! r> blk ! |
r> loadfile ! r> loadline ! >r ; |
r> loadfile ! r> loadline ! >r ; |
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: read-loop ( i*x -- j*x ) |
: read-loop ( i*x -- j*x ) |
Line 1436 create pathfilenamebuf 256 chars allot \
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Line 1455 create pathfilenamebuf 256 chars allot \
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pathfilenamebuf swap ; |
pathfilenamebuf swap ; |
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create included-files 0 , 0 , ( pointer to and count of included files ) |
create included-files 0 , 0 , ( pointer to and count of included files ) |
create image-included-files 0 , 0 , ( pointer to and count of included files ) |
here ," the terminal" dup c@ swap 1 + swap , A, here 2 cells - |
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create image-included-files 1 , A, ( pointer to and count of included files ) |
\ included-files points to ALLOCATEd space, while image-included-files |
\ included-files points to ALLOCATEd space, while image-included-files |
\ points to ALLOTed objects, so it survives a save-system |
\ points to ALLOTed objects, so it survives a save-system |
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: loadfilename ( -- a-addr ) |
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\ a-addr 2@ produces the current file name ( c-addr u ) |
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included-files 2@ drop loadfilename# @ 2* cells + ; |
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: sourcefilename ( -- c-addr u ) \ gforth |
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\ the name of the source file which is currently the input |
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\ source. The result is valid only while the file is being |
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\ loaded. If the current input source is no (stream) file, the |
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\ result is undefined. |
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loadfilename 2@ ; |
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: sourceline# ( -- u ) \ gforth sourceline-number |
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\ the line number of the line that is currently being interpreted |
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\ from a (stream) file. The first line has the number 1. If the |
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\ current input source is no (stream) file, the result is |
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\ undefined. |
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loadline @ ; |
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: init-included-files ( -- ) |
: init-included-files ( -- ) |
image-included-files 2@ 2* cells save-string drop ( addr ) |
image-included-files 2@ 2* cells save-string drop ( addr ) |
image-included-files 2@ nip included-files 2! ; |
image-included-files 2@ nip included-files 2! ; |
Line 1471 create image-included-files 0 , 0 , ( po
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Line 1509 create image-included-files 0 , 0 , ( po
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: included1 ( i*x file-id c-addr u -- j*x ) \ gforth |
: included1 ( i*x file-id c-addr u -- j*x ) \ gforth |
\ include the file file-id with the name given by c-addr u |
\ include the file file-id with the name given by c-addr u |
loadfilename 2@ >r >r |
loadfilename# @ >r |
save-string 2dup loadfilename 2! add-included-file ( file-id ) |
save-string add-included-file ( file-id ) |
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included-files 2@ nip 1- loadfilename# ! |
['] include-file catch |
['] include-file catch |
r> r> loadfilename 2! throw ; |
r> loadfilename# ! |
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throw ; |
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: included ( i*x addr u -- j*x ) \ file |
: included ( i*x addr u -- j*x ) \ file |
open-path-file included1 ; |
open-path-file included1 ; |
Line 1536 create image-included-files 0 , 0 , ( po
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Line 1576 create image-included-files 0 , 0 , ( po
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\ EVALUATE 17may93jaw |
\ EVALUATE 17may93jaw |
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: evaluate ( c-addr len -- ) \ core,block |
: evaluate ( c-addr len -- ) \ core,block |
push-file dup #tib ! >tib @ swap move |
push-file #tib ! >tib ! |
>in off blk off loadfile off -1 loadline ! |
>in off blk off loadfile off -1 loadline ! |
\ BEGIN interpret >in @ #tib @ u>= UNTIL |
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['] interpret catch |
['] interpret catch |
pop-file throw ; |
pop-file throw ; |
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Line 1605 DEFER DOERROR
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Line 1644 DEFER DOERROR
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; |
; |
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: (DoError) ( throw-code -- ) |
: (DoError) ( throw-code -- ) |
loadline @ IF |
sourceline# IF |
source >in @ loadline @ 0 0 .error-frame |
source >in @ sourceline# 0 0 .error-frame |
THEN |
THEN |
error-stack @ 0 ?DO |
error-stack @ 0 ?DO |
-1 error-stack +! |
-1 error-stack +! |
Line 1636 DEFER DOERROR
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Line 1675 DEFER DOERROR
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postpone [ |
postpone [ |
['] 'quit CATCH dup |
['] 'quit CATCH dup |
WHILE |
WHILE |
DoError r@ >tib ! |
DoError r@ >tib ! r@ tibstack ! |
REPEAT |
REPEAT |
drop r> >tib ! ; |
drop r> >tib ! ; |
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Line 1745 Defer 'cold ' noop IS 'cold
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Line 1784 Defer 'cold ' noop IS 'cold
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: boot ( path **argv argc -- ) |
: boot ( path **argv argc -- ) |
argc ! argv ! cstring>sstring pathstring 2! main-task up! |
argc ! argv ! cstring>sstring pathstring 2! main-task up! |
sp@ dup s0 ! $10 + >tib ! #tib off >in off |
sp@ dup s0 ! $10 + dup >tib ! tibstack ! #tib off >in off |
rp@ r0 ! fp@ f0 ! cold ; |
rp@ r0 ! fp@ f0 ! ['] cold catch DoError bye ; |
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: bye ( -- ) \ tools-ext |
: bye ( -- ) \ tools-ext |
script? 0= IF cr THEN 0 (bye) ; |
script? 0= IF cr THEN 0 (bye) ; |