version 1.26, 2001/02/24 17:24:45
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version 1.52, 2012/03/16 20:34:23
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\ VARS.FS Kernal variables |
\ VARS.FS Kernal variables |
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\ Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1997,1998,2000,2003,2006,2007,2011 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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\ 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. |
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\ This program is distributed in the hope that it will be useful, |
\ This program is distributed in the hope that it will be useful, |
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\ GNU General Public License for more details. |
\ GNU General Public License for more details. |
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\ 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. |
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hex \ everything now hex! 11may93jaw |
hex \ everything now hex! 11may93jaw |
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Line 46 has? floating [IF]
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Line 45 has? floating [IF]
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\G @i{c-char} is the character value for a space. |
\G @i{c-char} is the character value for a space. |
\ used by docon:, must be constant |
\ used by docon:, must be constant |
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FF Constant /line |
has? EC [IF] 20 cells [ELSE] FF [THEN] Constant /line |
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has? file [IF] |
40 Constant c/l |
40 Constant c/l |
10 Constant l/s |
10 Constant l/s |
400 Constant chars/block |
400 Constant chars/block |
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[THEN] |
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20 8 2* cells + 2 + cell+ constant word-pno-size ( -- u ) |
20 8 2* cells + 2 + cell+ constant word-pno-size ( -- u ) |
create holdbuf word-pno-size chars allot |
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holdbuf word-pno-size chars + aconstant holdbuf-end |
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avariable holdptr holdbuf-end holdptr a! |
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avariable holdend holdbuf-end holdend a! |
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84 constant pad-minsize ( -- u ) |
84 constant pad-minsize ( -- u ) |
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Line 69 $400 Value def#tib
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Line 66 $400 Value def#tib
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\ initialized by COLD |
\ initialized by COLD |
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Create main-task has? OS [IF] 100 [ELSE] 40 [THEN] cells allot |
has? no-userspace 0= [IF] |
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Create main-task has? OS [IF] 100 [ELSE] 40 [THEN] cells dup allot |
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\ set user-pointer from cross-compiler right |
\ set user-pointer from cross-compiler right |
main-task |
main-task |
UNLOCK tup ! LOCK |
UNLOCK swap region user-region user-region setup-region LOCK |
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Variable udp ( -- a-addr ) \ gforth |
Variable udp ( -- a-addr ) \ gforth |
\ user area size? -anton |
\G user area size |
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AUser next-task main-task next-task ! |
AUser next-task main-task next-task ! |
AUser prev-task main-task prev-task ! |
AUser prev-task main-task prev-task ! |
AUser save-task 0 save-task ! |
AUser save-task 0 save-task ! |
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[THEN] |
AUser sp0 ( -- a-addr ) \ gforth |
AUser sp0 ( -- a-addr ) \ gforth |
\G @code{User} variable -- initial value of the data stack pointer. |
\G @code{User} variable -- initial value of the data stack pointer. |
\ sp0 is used by douser:, must be user |
\ sp0 is used by douser:, must be user |
' sp0 Alias s0 ( -- a-addr ) \ gforth |
\ ' sp0 Alias s0 ( -- a-addr ) \ gforth |
\G OBSOLETE alias of @code{sp0} |
\G OBSOLETE alias of @code{sp0} |
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AUser rp0 ( -- a-addr ) \ gforth |
AUser rp0 ( -- a-addr ) \ gforth |
\G @code{User} variable -- initial value of the return stack pointer. |
\G @code{User} variable -- initial value of the return stack pointer. |
' rp0 Alias r0 ( -- a-addr ) \ gforth |
\ ' rp0 Alias r0 ( -- a-addr ) \ gforth |
\G OBSOLETE alias of @code{rp0} |
\G OBSOLETE alias of @code{rp0} |
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has? floating [IF] |
has? floating [IF] |
Line 101 AUser fp0 ( -- a-addr ) \ gforth
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Line 100 AUser fp0 ( -- a-addr ) \ gforth
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has? glocals [IF] |
has? glocals [IF] |
AUser lp0 ( -- a-addr ) \ gforth |
AUser lp0 ( -- a-addr ) \ gforth |
\G @code{User} variable -- initial value of the locals stack pointer. |
\G @code{User} variable -- initial value of the locals stack pointer. |
' lp0 Alias l0 ( -- a-addr ) \ gforth |
\ ' lp0 Alias l0 ( -- a-addr ) \ gforth |
\G OBSOLETE alias of @code{lp0} |
\G OBSOLETE alias of @code{lp0} |
[THEN] |
[THEN] |
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AUser throw-entry \ pointer to task-specific signal handler |
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AUser handler \ pointer to last throw frame |
AUser handler \ pointer to last throw frame |
has? backtrace [IF] |
has? backtrace [IF] |
User backtrace-empty \ true if the next THROW should store a backtrace |
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AUser backtrace-rp0 \ rp at last call of interpret |
AUser backtrace-rp0 \ rp at last call of interpret |
[THEN] |
[THEN] |
\ AUser output |
\ AUser output |
Line 117 AUser errorhandler
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Line 117 AUser errorhandler
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AUser "error 0 "error ! |
AUser "error 0 "error ! |
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has? EC 0= [IF] |
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auser holdbufptr |
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here word-pno-size chars allot dup holdbufptr ! |
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word-pno-size chars + |
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: holdbuf ( -- addr ) holdbufptr @ ; |
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: holdbuf-end holdbuf word-pno-size chars + ; |
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auser holdptr dup holdptr a! |
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auser holdend holdend a! |
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[THEN] |
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has? new-input [IF] |
has? new-input [IF] |
User current-input |
User current-input |
[ELSE] |
[ELSE] |
Line 145 has? file [IF]
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Line 155 has? file [IF]
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User loadfile 0 loadfile ! |
User loadfile 0 loadfile ! |
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User loadfilename# 0 loadfilename# ! |
2user loadfilename 0 0 loadfilename 2! \ addr u for sourcefilename |
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User loadline \ number of the currently interpreted |
User loadline \ number of the currently interpreted |
\ (in TIB) line if the interpretation |
\ (in TIB) line if the interpretation |
\ is in a textfile |
\ is in a textfile |
Line 157 has? file [IF]
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Line 167 has? file [IF]
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[THEN] |
[THEN] |
[THEN] |
[THEN] |
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2user includefilename 0 0 includefilename 2! \ innermost included file |
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User base ( -- a-addr ) \ core |
User base ( -- a-addr ) \ core |
\G @code{User} variable -- @i{a-addr} is the address of a cell that stores the |
\G @code{User} variable -- @i{a-addr} is the address of a cell that |
\G number base used by default for number conversion during input and output. |
\G stores the number base used by default for number conversion during |
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\G input and output. Don't store to @code{base}, use |
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\G @code{base-execute} instead. |
A base ! |
A base ! |
User dpl ( -- a-addr ) \ gforth |
User dpl ( -- a-addr ) \ gforth |
\G @code{User} variable -- @i{a-addr} is the address of a cell that stores the |
\G @code{User} variable -- @i{a-addr} is the address of a cell that stores the |
\G position of the decimal point in the most recent numeric conversion. |
\G position of the decimal point in the most recent numeric conversion. |
\G Initialised to -1. After the conversion of a number containing no |
\G Initialised to -1. After the conversion of a number containing no |
\G decimal point, @code{@ dpl} is -1. After the conversion of @code{2.} it holds |
\G decimal point, @code{dpl} is -1. After the conversion of @code{2.} it holds |
\G 0. After the conversion of 234123.9 it contains 1, and so forth. |
\G 0. After the conversion of 234123.9 it contains 1, and so forth. |
-1 dpl ! |
-1 dpl ! |
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Line 189 AUser dpp normal-dp dpp !
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Line 204 AUser dpp normal-dp dpp !
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\ the pointer to the current dictionary pointer |
\ the pointer to the current dictionary pointer |
\ ist reset to normal-dp on (doerror) |
\ ist reset to normal-dp on (doerror) |
\ (i.e. any throw caught by quit) |
\ (i.e. any throw caught by quit) |
AUser LastCFA |
has? ec [IF] |
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AUser LastCFA |
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[THEN] |
AUser Last |
AUser Last |
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AUser last-compiled \ address of the last compiled xt |
has? flash [IF] |
\ 0 if last xt cannot be combined (basic block boundary) |
AUser flash-dp |
0 last-compiled ! |
: rom flash-dp dpp ! ; |
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: ram normal-dp dpp ! ; |
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[THEN] |
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0 value peeptable \ initialized in boot |
User max-name-length \ maximum length of all names defined yet |
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32 max-name-length ! |
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\ has? peephole [IF] |
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\ 0 value peeptable \ initialized in boot |
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\ [THEN] |
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has? glocals [IF] |
has? glocals [IF] |
User locals-size \ this is the current size of the locals stack |
User locals-size \ this is the current size of the locals stack |