| \ miscelleneous words |
\ miscelleneous words |
| |
|
| \ Copyright (C) 1996,1997,1998,2000,2003,2004 Free Software Foundation, Inc. |
\ Copyright (C) 1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009 Free Software Foundation, Inc. |
| |
|
| \ This file is part of Gforth. |
\ This file is part of Gforth. |
| |
|
| \ Gforth is free software; you can redistribute it and/or |
\ Gforth is free software; you can redistribute it and/or |
| \ modify it under the terms of the GNU General Public License |
\ modify it under the terms of the GNU General Public License |
| \ as published by the Free Software Foundation; either version 2 |
\ as published by the Free Software Foundation, either version 3 |
| \ of the License, or (at your option) any later version. |
\ of the License, or (at your option) any later version. |
| |
|
| \ This program is distributed in the hope that it will be useful, |
\ This program is distributed in the hope that it will be useful, |
| \ GNU General Public License for more details. |
\ GNU General Public License for more details. |
| |
|
| \ You should have received a copy of the GNU General Public License |
\ You should have received a copy of the GNU General Public License |
| \ along with this program; if not, write to the Free Software |
\ along with this program. If not, see http://www.gnu.org/licenses/. |
| \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
|
| |
|
| require glocals.fs |
require glocals.fs |
| |
|
| : compile-compile-2literal ( n1 n2 -- ) |
: compile-compile-2literal ( n1 n2 -- ) |
| compile-2literal postpone compile-2literal ; |
compile-2literal postpone compile-2literal ; |
| |
|
| : [[ ( -- ) |
: [[ ( -- ) \ gforth left-bracket-bracket |
| \G switch from postpone state to compile state |
\G switch from postpone state to compile state |
| \ this is only a marker; it is never really interpreted |
\ this is only a marker; it is never really interpreted |
| compile-only-error ; immediate |
compile-only-error ; immediate |
| |
|
| [ifdef] compiler1 |
[ifdef] compiler1 |
| : postponer1 ( c-addr u -- ... xt ) |
: postponer1 ( c-addr u -- ... xt ) |
| 2dup find-name dup if ( c-addr u nt ) |
2dup find-name |
| |
[ifdef] run-prelude run-prelude [then] |
| |
dup if ( c-addr u nt ) |
| nip nip name>comp |
nip nip name>comp |
| 2dup [comp'] [[ d= if |
2dup [comp'] [[ d= if |
| 2drop ['] compiler1 is parser1 |
2drop ['] compiler1 is parser1 ['] noop |
| else |
else |
| ['] postpone, |
['] postpone, |
| endif |
endif |
| THEN |
THEN |
| then ; |
then ; |
| |
|
| : ]] ( -- ) |
: ]] ( -- ) \ gforth right-bracket-bracket |
| \ switch into postpone state |
\G switch into postpone state |
| ['] postponer1 is parser1 state on ; immediate restrict |
['] postponer1 is parser1 state on ; immediate restrict |
| |
|
| |
comp' literal drop alias postpone-literal |
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comp' 2literal drop alias postpone-2literal |
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comp' fliteral drop alias postpone-fliteral |
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comp' sliteral drop alias postpone-sliteral |
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|
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: ]]L ( postponing: x -- ; compiling: -- x ) \ gforth right-bracket-bracket-l |
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\G Shortcut for @code{]] literal}. |
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]] postpone-literal ]] [[ ; immediate |
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|
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: ]]2L ( postponing: x1 x2 -- ; compiling: -- x1 x2 ) \ gforth right-bracket-bracket-two-l |
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\G Shortcut for @code{]] 2literal}. |
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]] postpone-2literal ]] [[ ; immediate |
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|
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: ]]FL ( postponing: r -- ; compiling: -- r ) \ gforth right-bracket-bracket-f-l |
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\G Shortcut for @code{]] fliteral}. |
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]] postpone-fliteral ]] [[ ; immediate |
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|
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: ]]SL ( postponing: addr1 u -- ; compiling: -- addr2 u ) \ gforth right-bracket-bracket-s-l |
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\G Shortcut for @code{]] sliteral}; if the string already has been |
| |
\G allocated permanently, you can use @code{]]2L} instead. |
| |
]] postpone-sliteral ]] [[ ; immediate |
| |
|
| [then] |
[then] |
| |
|
| \ f.rdp |
\ f.rdp |
| [then] |
[then] |
| |
|
| : f.s ( -- ) \ gforth f-dot-s |
: f.s ( -- ) \ gforth f-dot-s |
| \G Display the number of items on the floating-point stack, |
\G Display the number of items on the floating-point stack, followed |
| \G followed by a list of the items; TOS is the right-most item. |
\G by a list of the items (but not more than specified by |
| |
\G @code{maxdepth-.s}; TOS is the right-most item. |
| ." <" fdepth 0 .r ." > " fdepth 0 max maxdepth-.s @ min dup 0 |
." <" fdepth 0 .r ." > " fdepth 0 max maxdepth-.s @ min dup 0 |
| ?DO dup i - 1- floats fp@ + f@ 16 5 11 f.rdp space LOOP drop ; |
?DO dup i - 1- floats fp@ + f@ 16 5 11 f.rdp space LOOP drop ; |
| |
|
| emit |
emit |
| loop ; |
loop ; |
| |
|
| |
\ w and l stuff |
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|
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environment-wordlist >order |
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|
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16 address-unit-bits / 1 max constant /w ( -- u ) \ gforth slash-w |
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\G address units for a 16-bit value |
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|
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32 address-unit-bits / 1 max constant /l ( -- u ) \ gforth slash-l |
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\G address units for a 32-bit value |
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|
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previous |
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|
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[ifdef] uw@ |
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\ Open firmware names |
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' uw@ alias w@ ( addr -- u ) |
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' ul@ alias l@ ( addr -- u ) |
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\ ' sw@ alias <w@ ( addr -- n ) |
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[then] |
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|
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\ safe output redirection |
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|
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: outfile-execute ( ... xt file-id -- ... ) \ gforth |
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\G execute @i{xt} with the output of @code{type} etc. redirected to |
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\G @i{file-id}. |
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outfile-id { oldfid } try |
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to outfile-id execute 0 |
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restore |
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oldfid to outfile-id |
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endtry |
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throw ; |
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|
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: infile-execute ( ... xt file-id -- ... ) \ gforth |
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\G execute @i{xt} with the input of @code{key} etc. redirected to |
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\G @i{file-id}. |
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infile-id { oldfid } try |
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to infile-id execute 0 |
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restore |
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oldfid to infile-id |
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endtry |
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throw ; |
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|
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\ safe BASE wrapper |
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|
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: base-execute ( i*x xt u -- j*x ) \ gforth |
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\G execute @i{xt} with the content of @code{BASE} being @i{u}, and |
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\G restoring the original @code{BASE} afterwards. |
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base @ { oldbase } \ use local, because TRY blocks the return stack |
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try |
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base ! execute 0 |
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restore |
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oldbase base ! |
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endtry |
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throw ; |
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|
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\ th |
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|
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: th ( addr1 u -- addr2 ) |
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cells + ; |
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|
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\ \\\ - skip to end of file |
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|
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: \\\ ( -- ) \ gforth |
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\G skip remaining source file |
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source-id dup 0> IF |
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>r r@ file-size throw r> reposition-file throw |
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BEGIN refill 0= UNTIL postpone \ THEN ; immediate |
