| \ CROSS.FS The Cross-Compiler 06oct92py |
\ CROSS.FS The Cross-Compiler 06oct92py |
| \ $Id$ |
|
| \ Idea and implementation: Bernd Paysan (py) |
\ Idea and implementation: Bernd Paysan (py) |
| \ Copyright 1992 by the ANSI figForth Development Group |
|
| |
|
| \ Log: |
\ Copyright (C) 1995,1996,1997,1998,1999,2000,2003,2004,2005 Free Software Foundation, Inc. |
| \ changed in ; [ to state off 12may93jaw |
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| \ included place +place 12may93jaw |
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| \ for a created word (variable, constant...) |
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| \ is now an alias in the target voabulary. |
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| \ this means it is no longer necessary to |
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| \ switch between vocabularies for variable |
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| \ initialization 12may93jaw |
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| \ discovered error in DOES> |
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| \ replaced !does with (;code) 16may93jaw |
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| \ made complete redesign and |
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| \ introduced two vocs method |
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| \ to be asure that the right words |
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| \ are found 08jun93jaw |
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| \ btw: ! works not with 16 bit |
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| \ targets 09jun93jaw |
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| \ added: 2user and value 11jun93jaw |
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| |
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| include other.fs \ ansforth extentions for cross |
\ This file is part of Gforth. |
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| decimal |
\ 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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|
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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., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
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|
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0 |
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[IF] |
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|
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ToDo: |
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- Crossdoc destination ./doc/crossdoc.fd makes no sense when |
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cross.fs is used seperately. jaw |
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- Do we need this char translation with >address and in branchoffset? |
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(>body also affected) jaw |
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|
| \ number? 11may93jaw |
[THEN] |
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|
| \ checks for +, -, $, & ... |
s" compat/strcomp.fs" included |
| : leading? ( c-addr u -- c-addr u doubleflag negflag base ) |
|
| 2dup 1- chars + c@ [char] . = \ process double |
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| IF dup 1 chars = IF over 1 swap c! false ELSE 1 chars - true THEN |
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| \ only if more than only . ( may be number output! ) |
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| \ if only . => store garbage |
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| ELSE false THEN >r \ numbers |
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| false -rot base @ -rot |
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| BEGIN over c@ |
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| dup [char] - = |
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| IF drop >r >r >r |
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| drop true r> r> r> 0 THEN |
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| dup [char] + = |
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| IF drop 0 THEN |
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| dup [char] $ = |
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| IF drop >r >r drop 16 r> r> 0 THEN |
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| dup [char] & = |
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| IF drop >r >r drop 10 r> r> 0 THEN |
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| 0= IF 1 chars - swap char+ swap false ELSE true THEN |
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| over 0= or |
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| UNTIL |
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| rot >r rot r> r> -rot ; |
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| |
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| : number? ( c-addr -- n/d flag ) |
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| \ return -1 if cell 1 if double 0 if garbage |
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| 0 swap 0 swap \ create double number |
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| count leading? |
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| base @ >r base ! |
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| >r >r |
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| >number IF 2drop false r> r> 2drop |
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| r> base ! EXIT THEN |
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| drop r> r> |
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| IF IF dnegate 1 |
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| ELSE drop negate -1 THEN |
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| ELSE IF 1 ELSE drop -1 THEN |
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| THEN r> base ! ; |
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hex |
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\ debugging for compiling |
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|
| \ Begin CROSS COMPILER: |
\ print stack at each colon definition |
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\ : : save-input cr bl word count type restore-input throw .s : ; |
| |
|
| \ GhostNames 9may93jaw |
\ print stack at each created word |
| \ second name source to search trough list |
\ : create save-input cr bl word count type restore-input throw .s create ; |
| |
|
| VARIABLE GhostNames |
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| 0 GhostNames ! |
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| : GhostName ( -- addr ) |
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| here GhostNames @ , GhostNames ! here 0 , |
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| name count |
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| \ 2dup type space |
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| dup c, here over chars allot swap move align ; |
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|
| hex |
\ \ ------------- Setup Vocabularies |
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|
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\ Remark: Vocabulary is not ANS, but it should work... |
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|
| Vocabulary Cross |
Vocabulary Cross |
| Vocabulary Target |
Vocabulary Target |
| Vocabulary Ghosts |
Vocabulary Ghosts |
| VOCABULARY Minimal |
Vocabulary Minimal |
| only Forth also Target also also |
only Forth also Target also also |
| definitions Forth |
definitions Forth |
| |
|
| : T previous Cross also Target ; immediate |
: T previous Ghosts also Target ; immediate |
| : G Ghosts ; immediate |
: G Ghosts ; immediate |
| : H previous Forth also Cross ; immediate |
: H previous Forth also Cross ; immediate |
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|
| forth definitions |
forth definitions |
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|
| : T previous Cross also Target ; immediate |
: T previous Ghosts also Target ; immediate |
| : G Ghosts ; immediate |
: G Ghosts ; immediate |
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|
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|
| : >cross also Cross definitions previous ; |
: >cross also Cross definitions previous ; |
| : >target also Target definitions previous ; |
: >target also Target definitions previous ; |
| : >minimal also Minimal definitions previous ; |
: >minimal also Minimal definitions previous ; |
| |
|
| >CROSS |
>CROSS |
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|
| \ Variables 06oct92py |
\ Test against this definitions to find out whether we are cross-compiling |
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\ may be usefull for assemblers |
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0 Constant gforth-cross-indicator |
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|
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\ find out whether we are compiling with gforth |
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|
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: defined? bl word find nip ; |
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defined? emit-file defined? toupper and \ drop 0 |
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[IF] |
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\ use this in a gforth system |
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: \GFORTH ; immediate |
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: \ANSI postpone \ ; immediate |
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[ELSE] |
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: \GFORTH postpone \ ; immediate |
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: \ANSI ; immediate |
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[THEN] |
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|
| -1 Constant NIL |
\ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate |
| Variable image |
\ANSI : [IFDEF] defined? postpone [IF] ; immediate |
| Variable tlast NIL tlast ! \ Last name field |
0 \ANSI drop 1 |
| Variable tlastcfa \ Last code field |
[IF] |
| Variable tdoes \ Resolve does> calls |
: \G postpone \ ; immediate |
| Variable bit$ |
: rdrop postpone r> postpone drop ; immediate |
| Variable tdp |
: name bl word count ; |
| : there tdp @ ; |
: bounds over + swap ; |
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: scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ; |
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: linked here over @ , swap ! ; |
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: alias create , DOES> @ EXECUTE ; |
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: defer ['] noop alias ; |
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: is state @ |
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IF ' >body postpone literal postpone ! |
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ELSE ' >body ! THEN ; immediate |
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: 0>= 0< 0= ; |
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: d<> rot <> -rot <> or ; |
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: toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ; |
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Variable ebuf |
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: emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ; |
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0a Constant #lf |
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0d Constant #cr |
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|
| \ Constants 06apr93py |
[IFUNDEF] Warnings Variable Warnings [THEN] |
| |
|
| -2 Constant :docol |
\ \ Number parsing 23feb93py |
| -3 Constant :docon |
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| -4 Constant :dovar |
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| -5 Constant :dodoes |
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|
| \ Parameter for target systems 06oct92py |
\ number? number 23feb93py |
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|
| include machine.fs |
Variable dpl |
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|
| >TARGET |
hex |
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Create bases 10 , 2 , A , 100 , |
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\ 16 2 10 character |
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|
| \ Byte ordering and cell size 06oct92py |
\ !! protect BASE saving wrapper against exceptions |
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: getbase ( addr u -- addr' u' ) |
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over c@ [char] $ - dup 4 u< |
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IF |
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cells bases + @ base ! 1 /string |
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ELSE |
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drop |
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THEN ; |
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|
| : cell+ cell + ; |
: sign? ( addr u -- addr u flag ) |
| : cells cell<< lshift ; |
over c@ [char] - = dup >r |
| : chars ; |
IF |
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1 /string |
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THEN |
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r> ; |
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|
| >CROSS |
: s>unumber? ( addr u -- ud flag ) |
| : cell/ cell<< rshift ; |
over [char] ' = |
| >TARGET |
IF \ a ' alone is rather unusual :-) |
| 20 CONSTANT bl |
drop char+ c@ 0 true EXIT |
| -1 Constant NIL |
THEN |
| -2 Constant :docol |
base @ >r dpl on getbase |
| -3 Constant :docon |
0. 2swap |
| -4 Constant :dovar |
BEGIN ( d addr len ) |
| -5 Constant :dodoes |
dup >r >number dup |
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WHILE \ there are characters left |
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dup r> - |
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WHILE \ the last >number parsed something |
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dup 1- dpl ! over c@ [char] . = |
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WHILE \ the current char is '.' |
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1 /string |
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REPEAT THEN \ there are unparseable characters left |
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2drop false |
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ELSE |
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rdrop 2drop true |
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THEN |
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r> base ! ; |
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|
| >CROSS |
\ ouch, this is complicated; there must be a simpler way - anton |
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: s>number? ( addr len -- d f ) |
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\ converts string addr len into d, flag indicates success |
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sign? >r |
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s>unumber? |
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0= IF |
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rdrop false |
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ELSE \ no characters left, all ok |
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r> |
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IF |
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dnegate |
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THEN |
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true |
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THEN ; |
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|
| endian 0 pad ! -1 pad c! pad @ 0< |
: s>number ( addr len -- d ) |
| = [IF] : bswap ; immediate |
\ don't use this, there is no way to tell success |
| [ELSE] : bswap ( big / little -- little / big ) 0 |
s>number? drop ; |
| cell 1- FOR bits/byte lshift over |
|
| [ 1 bits/byte lshift 1- ] Literal and or |
: snumber? ( c-addr u -- 0 / n -1 / d 0> ) |
| swap bits/byte rshift swap NEXT nip ; |
s>number? 0= |
| [THEN] |
IF |
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2drop false EXIT |
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THEN |
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dpl @ dup 0< IF |
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nip |
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ELSE |
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1+ |
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THEN ; |
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|
| \ Memory initialisation 05dec92py |
: number? ( string -- string 0 / n -1 / d 0> ) |
| \ Fixed bug in else part 11may93jaw |
dup >r count snumber? dup if |
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rdrop |
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else |
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r> swap |
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then ; |
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|
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: number ( string -- d ) |
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number? ?dup 0= abort" ?" 0< |
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IF |
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s>d |
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THEN ; |
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| [IFDEF] Memory \ Memory is a bigFORTH feature |
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| Memory |
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| : initmem ( var len -- ) |
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| 2dup swap handle! >r @ r> erase ; |
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| Target |
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| [ELSE] |
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| : initmem ( var len -- ) |
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| tuck allocate abort" CROSS: No memory for target" |
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| ( len var adr ) dup rot ! |
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| ( len adr ) swap erase ; |
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| [THEN] |
[THEN] |
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|
| \ MakeKernal 12dec92py |
\ this provides assert( and struct stuff |
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\GFORTH [IFUNDEF] assert1( |
| >MINIMAL |
\GFORTH also forth definitions require assert.fs previous |
| : makekernal ( targetsize -- targetsize ) |
\GFORTH [THEN] |
| bit$ over 1- cell>bit rshift 1+ initmem |
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| image over initmem tdp off ; |
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|
| >CROSS |
>CROSS |
| \ Bit string manipulation 06oct92py |
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| \ 9may93jaw |
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| CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c, |
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| : bits ( n -- n ) chars Bittable + c@ ; |
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|
| : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ; |
hex \ the defualt base for the cross-compiler is hex !! |
| : +bit ( addr n -- ) >bit over c@ or swap c! ; |
\ Warnings off |
| : relon ( taddr -- ) bit$ @ swap cell/ +bit ; |
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| \ Target memory access 06oct92py |
\ words that are generaly useful |
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|
| : align+ ( taddr -- rest ) |
: KB 400 * ; |
| cell tuck 1- and - [ cell 1- ] Literal and ; |
: >wordlist ( vocabulary-xt -- wordlist-struct ) |
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also execute get-order swap >r 1- set-order r> ; |
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|
| >TARGET |
: umax 2dup u< IF swap THEN drop ; |
| : aligned ( taddr -- ta-addr ) dup align+ + ; |
: umin 2dup u> IF swap THEN drop ; |
| \ assumes cell alignment granularity (as GNU C) |
|
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|
| >CROSS |
: string, ( c-addr u -- ) |
| : >image ( taddr -- absaddr ) image @ + ; |
\ puts down string as cstring |
| >TARGET |
dup c, here swap chars dup allot move ; |
| : @ ( taddr -- w ) >image @ bswap ; |
|
| : ! ( w taddr -- ) >r bswap r> >image ! ; |
: ," [char] " parse string, ; |
| : c@ ( taddr -- char ) >image c@ ; |
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| : c! ( char taddr -- ) >image c! ; |
: SetValue ( n -- <name> ) |
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\G Same behaviour as "Value" if the <name> is not defined |
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\G Same behaviour as "to" if <name> is defined |
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\G SetValue searches in the current vocabulary |
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save-input bl word >r restore-input throw r> count |
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get-current search-wordlist |
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IF drop >r |
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\ we have to set current to be topmost context wordlist |
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get-order get-order get-current swap 1+ set-order |
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r> ['] to execute |
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set-order |
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ELSE Value THEN ; |
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|
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: DefaultValue ( n -- <name> ) |
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\G Same behaviour as "Value" if the <name> is not defined |
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\G DefaultValue searches in the current vocabulary |
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save-input bl word >r restore-input throw r> count |
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get-current search-wordlist |
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IF bl word drop 2drop ELSE Value THEN ; |
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|
| \ Target compilation primitives 06oct92py |
hex |
| \ included A! 16may93jaw |
|
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|
| : here ( -- there ) there ; |
\ FIXME delete` |
| : allot ( n -- ) tdp +! ; |
\ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are |
| : , ( w -- ) T here H cell T allot ! H ; |
\ for cross-compiling |
| : c, ( char -- ) T here 1 allot c! H ; |
\ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!! |
| : align ( -- ) T here H align+ 0 ?DO bl T c, H LOOP ; |
|
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\ FIXME move down |
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: comment? ( c-addr u -- c-addr u ) |
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2dup s" (" str= |
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IF postpone ( |
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ELSE 2dup s" \" str= IF postpone \ THEN |
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THEN ; |
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|
| : A! dup relon T ! H ; |
: X ( -- <name> ) |
| : A, ( w -- ) T here H relon T , H ; |
\G The next word in the input is a target word. |
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\G Equivalent to T <name> but without permanent |
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\G switch to target dictionary. Used as prefix e.g. for @, !, here etc. |
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bl word count [ ' target >wordlist ] Literal search-wordlist |
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IF state @ IF compile, ELSE execute THEN |
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ELSE -1 ABORT" Cross: access method not supported!" |
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THEN ; immediate |
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|
| >CROSS |
\ Begin CROSS COMPILER: |
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|
| \ threading modell 13dec92py |
\ debugging |
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|
| \ generic threading modell |
0 [IF] |
| : docol, ( -- ) :docol T A, 0 , H ; |
|
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This implements debugflags for the cross compiler and the compiled |
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images. It works identical to the has-flags in the environment. |
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The debugflags are defined in a vocabluary. If the word exists and |
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its value is true, the flag is switched on. |
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|
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[THEN] |
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|
| >TARGET |
|
| : >body ( cfa -- pfa ) T cell+ cell+ H ; |
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| >CROSS |
>CROSS |
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|
| : dodoes, ( -- ) T 0 , 0 , H ; |
Vocabulary debugflags \ debug flags for cross |
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also debugflags get-order over |
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Constant debugflags-wl |
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set-order previous |
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|
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: DebugFlag |
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get-current >r debugflags-wl set-current |
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SetValue |
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r> set-current ; |
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|
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: Debug? ( adr u -- flag ) |
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\G return true if debug flag is defined or switched on |
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debugflags-wl search-wordlist |
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IF EXECUTE |
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ELSE false THEN ; |
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|
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: D? ( <name> -- flag ) |
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\G return true if debug flag is defined or switched on |
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\G while compiling we do not return the current value but |
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bl word count debug? ; |
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|
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: [d?] |
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\G compile the value-xt so the debug flag can be switched |
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\G the flag must exist! |
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bl word count debugflags-wl search-wordlist |
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IF compile, |
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ELSE -1 ABORT" unknown debug flag" |
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\ POSTPONE false |
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THEN ; immediate |
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|
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: symentry ( adr len taddr -- ) |
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\G Produce a symbol table (an optional symbol address |
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\G map) if wanted |
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[ [IFDEF] fd-symbol-table ] |
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base @ swap hex s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base ! |
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s" :" fd-symbol-table write-file throw |
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fd-symbol-table write-line throw |
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[ [ELSE] ] |
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2drop drop |
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[ [THEN] ] ; |
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|
| \ Ghost Builder 06oct92py |
|
| |
|
| \ <T T> new version with temp variable 10may93jaw |
\ \ -------------------- source file |
| |
|
| VARIABLE VocTemp |
decimal |
| |
|
| : <T get-current VocTemp ! also Ghosts definitions ; |
Variable cross-file-list |
| : T> previous VocTemp @ set-current ; |
0 cross-file-list ! |
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Variable target-file-list |
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0 target-file-list ! |
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Variable host-file-list |
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0 host-file-list ! |
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|
| 4711 Constant <fwd> 4712 Constant <res> |
cross-file-list Value file-list |
| 4713 Constant <imm> |
0 Value source-desc |
| |
|
| \ iForth makes only immediate directly after create |
\ file loading |
| \ make atonce trick! ? |
|
| |
|
| Variable atonce atonce off |
: >fl-id 1 cells + ; |
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: >fl-name 2 cells + ; |
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|
| : NoExec true ABORT" CROSS: Don't execute ghost" ; |
Variable filelist 0 filelist ! |
| |
Create NoFile ," #load-file#" |
| |
|
| : GhostHeader <fwd> , 0 , ['] NoExec , ; |
: loadfile ( -- adr ) |
| |
source-desc ?dup IF >fl-name ELSE NoFile THEN ; |
| |
|
| : >magic ; : >link cell+ ; : >exec cell+ cell+ ; |
: sourcefilename ( -- adr len ) |
| : >end 3 cells + ; |
loadfile count ; |
| |
|
| : Make-Ghost ( "name" -- ghost ) |
\ANSI : sourceline# 0 ; |
| >in @ GhostName swap >in ! |
|
| <T Create atonce @ IF immediate atonce off THEN |
|
| here tuck swap ! ghostheader T> |
|
| DOES> >exec @ execute ; |
|
| |
|
| \ ghost words 14oct92py |
\ \ -------------------- path handling from kernel/paths.fs |
| \ changed: 10may93py/jaw |
|
| |
|
| : gfind ( string -- ghost true/1 / string false ) |
\ paths.fs path file handling 03may97jaw |
| \ searches for string in word-list ghosts |
|
| \ !! wouldn't it be simpler to just use search-wordlist ? ae |
|
| >r get-order 0 set-order also ghosts r> find >r >r |
|
| set-order r> r@ IF >body THEN r> ; |
|
| |
|
| VARIABLE Already |
|
| |
|
| : ghost ( "name" -- ghost ) |
|
| Already off |
|
| >in @ name gfind IF Already on nip EXIT THEN |
|
| drop >in ! Make-Ghost ; |
|
| |
|
| \ resolve 14oct92py |
\ -Changing the search-path: |
| |
\ fpath+ <path> adds a directory to the searchpath |
| |
\ fpath= <path>|<path> makes complete now searchpath |
| |
\ seperator is | |
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\ .fpath displays the search path |
| |
\ remark I: |
| |
\ a ./ in the beginning of filename is expanded to the directory the |
| |
\ current file comes from. ./ can also be included in the search-path! |
| |
\ ~+/ loads from the current working directory |
| |
|
| : resolve-loop ( ghost tcfa -- ghost tcfa ) |
\ remark II: |
| >r dup >link @ |
\ if there is no sufficient space for the search path increase it! |
| BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ; |
|
| |
|
| \ exists 9may93jaw |
|
| |
|
| : exists ( ghost tcfa -- ) |
\ -Creating custom paths: |
| over GhostNames |
|
| BEGIN @ dup |
|
| WHILE 2dup cell+ @ = |
|
| UNTIL |
|
| nip 2 cells + count cr ." CROSS: Exists: " type 4 spaces |
|
| swap cell+ ! |
|
| ELSE true ABORT" CROSS: Ghostnames inconsistent" |
|
| THEN ; |
|
| |
|
| : resolve ( ghost tcfa -- ) |
\ It is possible to use the search mechanism on yourself. |
| over >magic @ <fwd> <> IF exists EXIT THEN |
|
| resolve-loop over >link ! <res> swap >magic ! ; |
|
| |
|
| \ gexecute ghost, 01nov92py |
\ Make a buffer for the path: |
| |
\ create mypath 100 chars , \ maximum length (is checked) |
| |
\ 0 , \ real len |
| |
\ 100 chars allot \ space for path |
| |
\ use the same functions as above with: |
| |
\ mypath path+ |
| |
\ mypath path= |
| |
\ mypath .path |
| |
|
| : do-forward ( ghost -- ) |
\ do a open with the search path: |
| >link dup @ there rot ! T A, H ; |
\ open-path-file ( adr len path -- fd adr len ior ) |
| : do-resolve ( ghost -- ) |
\ the file is opened read-only; if the file is not found an error is generated |
| >link @ T A, H ; |
|
| |
|
| : gexecute ( ghost -- ) dup @ |
|
| <fwd> = IF do-forward ELSE do-resolve THEN ; |
|
| : ghost, ghost gexecute ; |
|
| |
|
| \ .unresolved 11may93jaw |
\ questions to: wilke@jwdt.com |
| |
|
| variable ResolveFlag |
[IFUNDEF] +place |
| |
: +place ( adr len adr ) |
| |
2dup >r >r |
| |
dup c@ char+ + swap move |
| |
r> r> dup c@ rot + swap c! ; |
| |
[THEN] |
| |
|
| \ ?touched 11may93jaw |
[IFUNDEF] place |
| |
: place ( c-addr1 u c-addr2 ) |
| |
2dup c! char+ swap move ; |
| |
[THEN] |
| |
|
| : ?touched ( ghost -- flag ) dup >magic @ <fwd> = swap >link @ |
\ if we have path handling, use this and the setup of it |
| 0 <> and ; |
[IFUNDEF] open-fpath-file |
| |
|
| : ?resolved ( ghostname -- ) |
create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic |
| dup cell+ @ ?touched |
sourcepath value fpath |
| IF cell+ cell+ count cr type ResolveFlag on ELSE drop THEN ; |
|
| |
|
| >MINIMAL |
: also-path ( adr len path^ -- ) |
| : .unresolved ( -- ) |
>r |
| ResolveFlag off cr ." Unresolved: " |
\ len check |
| Ghostnames |
r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!" |
| BEGIN @ dup |
\ copy into |
| WHILE dup ?resolved |
tuck r@ cell+ dup @ cell+ + swap cmove |
| REPEAT drop ResolveFlag @ 0= IF ." Nothing!" THEN cr ; |
\ make delimiter |
| |
0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +! |
| |
; |
| |
|
| |
: only-path ( adr len path^ -- ) |
| |
dup 0 swap cell+ ! also-path ; |
| |
|
| |
: path+ ( path-addr "dir" -- ) \ gforth |
| |
\G Add the directory @var{dir} to the search path @var{path-addr}. |
| |
name rot also-path ; |
| |
|
| |
: fpath+ ( "dir" ) \ gforth |
| |
\G Add directory @var{dir} to the Forth search path. |
| |
fpath path+ ; |
| |
|
| |
: path= ( path-addr "dir1|dir2|dir3" ) \ gforth |
| |
\G Make a complete new search path; the path separator is |. |
| |
name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP |
| |
rot only-path ; |
| |
|
| |
: fpath= ( "dir1|dir2|dir3" ) \ gforth |
| |
\G Make a complete new Forth search path; the path separator is |. |
| |
fpath path= ; |
| |
|
| |
: path>string cell+ dup cell+ swap @ ; |
| |
|
| |
: next-path ( adr len -- adr2 len2 ) |
| |
2dup 0 scan |
| |
dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN |
| |
>r 1+ -rot r@ 1- -rot |
| |
r> - ; |
| |
|
| |
: previous-path ( path^ -- ) |
| |
dup path>string |
| |
BEGIN tuck dup WHILE repeat ; |
| |
|
| |
: .path ( path-addr -- ) \ gforth |
| |
\G Display the contents of the search path @var{path-addr}. |
| |
path>string |
| |
BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ; |
| |
|
| |
: .fpath ( -- ) \ gforth |
| |
\G Display the contents of the Forth search path. |
| |
fpath .path ; |
| |
|
| |
: absolut-path? ( addr u -- flag ) \ gforth |
| |
\G A path is absolute if it starts with a / or a ~ (~ expansion), |
| |
\G or if it is in the form ./*, extended regexp: ^[/~]|./, or if |
| |
\G it has a colon as second character ("C:..."). Paths simply |
| |
\G containing a / are not absolute! |
| |
2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/.... |
| |
over c@ [char] / = >r |
| |
over c@ [char] ~ = >r |
| |
\ 2dup S" ../" string-prefix? r> or >r \ not catered for in expandtopic |
| |
S" ./" string-prefix? |
| |
r> r> r> or or or ; |
| |
|
| |
Create ofile 0 c, 255 chars allot |
| |
Create tfile 0 c, 255 chars allot |
| |
|
| |
: pathsep? dup [char] / = swap [char] \ = or ; |
| |
|
| |
: need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ; |
| |
|
| |
: extractpath ( adr len -- adr len2 ) |
| |
BEGIN dup WHILE 1- |
| |
2dup + c@ pathsep? IF EXIT THEN |
| |
REPEAT ; |
| |
|
| |
: remove~+ ( -- ) |
| |
ofile count s" ~+/" string-prefix? |
| |
IF |
| |
ofile count 3 /string ofile place |
| |
THEN ; |
| |
|
| >CROSS |
: expandtopic ( -- ) \ stack effect correct? - anton |
| \ Header states 12dec92py |
\ expands "./" into an absolute name |
| |
ofile count s" ./" string-prefix? |
| |
IF |
| |
ofile count 1 /string tfile place |
| |
0 ofile c! sourcefilename extractpath ofile place |
| |
ofile c@ IF need/ THEN |
| |
tfile count over c@ pathsep? IF 1 /string THEN |
| |
ofile +place |
| |
THEN ; |
| |
|
| : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ; |
: compact.. ( adr len -- adr2 len2 ) |
| |
\ deletes phrases like "xy/.." out of our directory name 2dec97jaw |
| |
over swap |
| |
BEGIN dup WHILE |
| |
dup >r '/ scan 2dup s" /../" string-prefix? |
| |
IF |
| |
dup r> - >r 4 /string over r> + 4 - |
| |
swap 2dup + >r move dup r> over - |
| |
ELSE |
| |
rdrop dup 1 min /string |
| |
THEN |
| |
REPEAT drop over - ; |
| |
|
| VARIABLE ^imm |
: reworkdir ( -- ) |
| |
remove~+ |
| |
ofile count compact.. |
| |
nip ofile c! ; |
| |
|
| |
: open-ofile ( -- fid ior ) |
| |
\G opens the file whose name is in ofile |
| |
expandtopic reworkdir |
| |
ofile count r/o open-file ; |
| |
|
| |
: check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 ) |
| |
0 ofile ! >r >r ofile place need/ |
| |
r> r> ofile +place |
| |
open-ofile ; |
| |
|
| |
: open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth |
| |
\G Look in path @var{path-addr} for the file specified by @var{addr1 u1}. |
| |
\G If found, the resulting path and an open file descriptor |
| |
\G are returned. If the file is not found, @var{ior} is non-zero. |
| |
>r |
| |
2dup absolut-path? |
| |
IF rdrop |
| |
ofile place open-ofile |
| |
dup 0= IF >r ofile count r> THEN EXIT |
| |
ELSE r> path>string |
| |
BEGIN next-path dup |
| |
WHILE 5 pick 5 pick check-path |
| |
0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN |
| |
REPEAT |
| |
2drop 2drop 2drop -38 |
| |
THEN ; |
| |
|
| |
: open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth |
| |
\G Look in the Forth search path for the file specified by @var{addr1 u1}. |
| |
\G If found, the resulting path and an open file descriptor |
| |
\G are returned. If the file is not found, @var{ior} is non-zero. |
| |
fpath open-path-file ; |
| |
|
| |
fpath= ~+ |
| |
|
| |
[THEN] |
| |
|
| |
\ \ -------------------- include require 13may99jaw |
| |
|
| >TARGET |
|
| : immediate 20 flag! |
|
| ^imm @ @ dup <imm> = ?EXIT |
|
| <res> <> ABORT" CROSS: Cannot immediate a unresolved word" |
|
| <imm> ^imm @ ! ; |
|
| : restrict ; |
|
| >CROSS |
>CROSS |
| |
|
| \ ALIAS2 ansforth conform alias 9may93jaw |
: add-included-file ( adr len -- adr ) |
| |
dup >fl-name char+ allocate throw >r |
| |
file-list @ r@ ! r@ file-list ! |
| |
r@ >fl-name place r> ; |
| |
|
| : ALIAS2 create here 0 , DOES> @ execute ; |
: included? ( c-addr u -- f ) |
| \ usage: |
file-list |
| \ ' alias2 bla ! |
BEGIN @ dup |
| |
WHILE >r 2dup r@ >fl-name count str= |
| |
IF rdrop 2drop true EXIT THEN |
| |
r> |
| |
REPEAT |
| |
2drop drop false ; |
| |
|
| \ Target Header Creation 01nov92py |
false DebugFlag showincludedfiles |
| |
|
| : string, ( addr count -- ) |
: included1 ( fd adr u -- ) |
| dup T c, H bounds DO I c@ T c, H LOOP ; |
\ include file adr u / fd |
| : name, ( "name" -- ) name count string, T align H ; |
\ we don't use fd with include-file, because the forth system |
| : view, ( -- ) ( dummy ) ; |
\ doesn't know the name of the file to get a nice error report |
| |
[d?] showincludedfiles |
| |
IF cr ." Including: " 2dup type ." ..." THEN |
| |
rot close-file throw |
| |
source-desc >r |
| |
add-included-file to source-desc |
| |
sourcefilename |
| |
['] included catch |
| |
r> to source-desc |
| |
throw ; |
| |
|
| |
: included ( adr len -- ) |
| |
cross-file-list to file-list |
| |
open-fpath-file throw |
| |
included1 ; |
| |
|
| |
: required ( adr len -- ) |
| |
cross-file-list to file-list |
| |
open-fpath-file throw \ 2dup cr ." R:" type |
| |
2dup included? |
| |
IF 2drop close-file throw |
| |
ELSE included1 |
| |
THEN ; |
| |
|
| VARIABLE CreateFlag CreateFlag off |
: include bl word count included ; |
| |
|
| : (Theader ( "name" -- ghost ) T align H view, |
: require bl word count required ; |
| tlast @ dup 0> IF T 1 cells - THEN A, H there tlast ! |
|
| >in @ name, >in ! T here H tlastcfa ! |
|
| CreateFlag @ IF |
|
| >in @ alias2 swap >in ! \ create alias in target |
|
| >in @ ghost swap >in ! |
|
| swap also ghosts ' previous swap ! \ tick ghost and store in alias |
|
| CreateFlag off |
|
| ELSE ghost THEN |
|
| dup >magic ^imm ! \ a pointer for immediate |
|
| Already @ IF dup >end tdoes ! |
|
| ELSE 0 tdoes ! THEN |
|
| 80 flag! ; |
|
| |
|
| VARIABLE ;Resolve 1 cells allot |
0 [IF] |
| |
|
| : Theader ( "name" -- ) (THeader there resolve 0 ;Resolve ! ; |
also forth definitions previous |
| |
|
| >TARGET |
: included ( adr len -- ) included ; |
| : Alias ( cfa -- ) \ name |
|
| (THeader over resolve T A, H 80 flag! ; |
|
| >CROSS |
|
| |
|
| \ Conditionals and Comments 11may93jaw |
: required ( adr len -- ) required ; |
| |
|
| : ;Cond |
: include include ; |
| postpone ; |
|
| swap ! ; immediate |
|
| |
|
| : Cond: ( -- ) \ name {code } ; |
: require require ; |
| atonce on |
|
| ghost |
|
| >exec |
|
| :NONAME ; |
|
| |
|
| : restrict? ( -- ) |
[THEN] |
| \ aborts on interprete state - ae |
|
| state @ 0= ABORT" CROSS: Restricted" ; |
|
| |
|
| : Comment ( -- ) |
>CROSS |
| >in @ atonce on ghost swap >in ! ' swap >exec ! ; |
hex |
| |
|
| Comment ( Comment \ |
\ \ -------------------- Error Handling 05aug97jaw |
| |
|
| \ Predefined ghosts 12dec92py |
\ Flags |
| |
|
| ghost 0= drop |
also forth definitions \ these values may be predefined before |
| ghost branch ghost ?branch 2drop |
\ the cross-compiler is loaded |
| ghost (do) ghost (?do) 2drop |
|
| ghost (for) drop |
|
| ghost (loop) ghost (+loop) 2drop |
|
| ghost (next) drop |
|
| ghost unloop ghost ;S 2drop |
|
| ghost lit ghost (compile) ghost ! 2drop drop |
|
| ghost (;code) ghost noop 2drop |
|
| ghost (.") ghost (S") ghost (ABORT") 2drop drop |
|
| |
|
| \ compile 10may93jaw |
false DefaultValue stack-warn \ check on empty stack at any definition |
| |
false DefaultValue create-forward-warn \ warn on forward declaration of created words |
| |
|
| : compile ( -- ) \ name |
previous >CROSS |
| restrict? |
|
| name gfind dup 0= ABORT" CROSS: Can't compile " |
|
| 0> ( immediate? ) |
|
| IF >exec @ compile, |
|
| ELSE postpone literal postpone gexecute THEN ; |
|
| immediate |
|
| |
|
| >TARGET |
: .dec |
| : ' ( -- cfa ) name gfind 0= ABORT" CROSS: undefined " |
base @ decimal swap . base ! ; |
| dup >magic @ <fwd> = ABORT" CROSS: forward " >link @ ; |
|
| |
|
| Cond: ['] compile lit ghost gexecute ;Cond |
: .sourcepos |
| |
cr sourcefilename type ." :" |
| |
sourceline# .dec ; |
| |
|
| >CROSS |
: warnhead |
| \ tLiteral 12dec92py |
\G display error-message head |
| |
\G perhaps with linenumber and filename |
| |
.sourcepos ." Warning: " ; |
| |
|
| : lit, ( n -- ) compile lit T , H ; |
: empty? depth IF .sourcepos ." Stack not empty!" THEN ; |
| : alit, ( n -- ) compile lit T A, H ; |
|
| |
|
| >TARGET |
stack-warn [IF] |
| Cond: Literal ( n -- ) restrict? lit, ;Cond |
: defempty? empty? ; |
| Cond: ALiteral ( n -- ) restrict? alit, ;Cond |
[ELSE] |
| |
: defempty? ; immediate |
| |
\ : defempty? .sourcepos ; |
| |
[THEN] |
| |
|
| : Char ( "<char>" -- ) bl word char+ c@ ; |
\ \ -------------------- Compiler Plug Ins 01aug97jaw |
| Cond: [Char] ( "<char>" -- ) restrict? Char lit, ;Cond |
|
| |
|
| >CROSS |
>CROSS |
| \ Target compiling loop 12dec92py |
|
| \ ">tib trick thrown out 10may93jaw |
|
| \ number? defined at the top 11may93jaw |
|
| |
|
| \ compiled word might leave items on stack! |
\ Compiler States |
| : tcom ( in name -- ) |
|
| gfind ?dup IF 0> IF nip >exec @ execute |
Variable comp-state |
| ELSE nip gexecute THEN EXIT THEN |
0 Constant interpreting |
| number? dup IF 0> IF swap lit, THEN lit, drop |
1 Constant compiling |
| ELSE 2drop >in ! |
2 Constant resolving |
| ghost gexecute THEN ; |
3 Constant assembling |
| |
|
| |
: compiling? comp-state @ compiling = ; |
| |
|
| |
: pi-undefined -1 ABORT" Plugin undefined" ; |
| |
|
| |
: Plugin ( -- : pluginname ) |
| |
Create |
| |
\ for normal cross-compiling only one action |
| |
\ exists, this fields are identical. For the instant |
| |
\ simulation environment we need, two actions for each plugin |
| |
\ the target one and the one that generates the simulation code |
| |
['] pi-undefined , \ action |
| |
['] pi-undefined , \ target plugin action |
| |
8765 , \ plugin magic |
| |
DOES> perform ; |
| |
|
| |
Plugin DummyPlugin |
| |
|
| |
: 'PI ( -- addr : pluginname ) |
| |
' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ; |
| |
|
| |
: plugin-of ( xt -- : pluginname ) |
| |
dup 'PI 2! ; |
| |
|
| |
: action-of ( xt -- : plunginname ) |
| |
'PI cell+ ! ; |
| |
|
| |
: TPA ( -- : plugin ) |
| |
\ target plugin action |
| |
\ executes current target action of plugin |
| |
'PI cell+ POSTPONE literal POSTPONE perform ; immediate |
| |
|
| |
Variable ppi-temp 0 ppi-temp ! |
| |
|
| |
: pa: |
| |
\g define plugin action |
| |
ppi-temp @ ABORT" pa: definition not closed" |
| |
'PI ppi-temp ! :noname ; |
| |
|
| |
: ;pa |
| |
\g end a definition for plugin action |
| |
POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate |
| |
|
| |
|
| |
Plugin dlit, ( d -- ) \ compile numerical value the target |
| |
Plugin lit, ( n -- ) |
| |
Plugin alit, ( n -- ) |
| |
|
| |
Plugin branch, ( target-addr -- ) \ compiles a branch |
| |
Plugin ?branch, ( target-addr -- ) \ compiles a ?branch |
| |
Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch |
| |
Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch |
| |
Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch |
| |
Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment) |
| |
' NOOP plugin-of branchto, |
| |
Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark |
| |
Plugin branchtomark, ( -- target-addr ) \ marks a branch destination |
| |
|
| |
Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position |
| |
Plugin prim, ( tcfa -- ) \ compiles primitive invocation |
| |
Plugin colonmark, ( -- addr ) \ marks a colon call |
| |
Plugin colon-resolve ( tcfa addr -- ) |
| |
|
| |
Plugin addr-resolve ( target-addr addr -- ) |
| |
Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt ) |
| |
|
| |
Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open |
| |
Plugin if, ( -- if-token ) |
| |
Plugin else, ( if-token -- if-token ) |
| |
Plugin then, ( if-token -- ) |
| |
Plugin ahead, |
| |
Plugin begin, |
| |
Plugin while, |
| |
Plugin until, |
| |
Plugin again, |
| |
Plugin repeat, |
| |
Plugin cs-swap ( x1 x2 -- x2 x1 ) |
| |
|
| |
Plugin case, ( -- n ) |
| |
Plugin of, ( n -- x1 n ) |
| |
Plugin endof, ( x1 n -- x2 n ) |
| |
Plugin endcase, ( x1 .. xn n -- ) |
| |
|
| |
Plugin do, ( -- do-token ) |
| |
Plugin ?do, ( -- ?do-token ) |
| |
Plugin for, ( -- for-token ) |
| |
Plugin loop, ( do-token / ?do-token -- ) |
| |
Plugin +loop, ( do-token / ?do-token -- ) |
| |
Plugin next, ( for-token ) |
| |
Plugin leave, ( -- ) |
| |
Plugin ?leave, ( -- ) |
| |
|
| |
Plugin ca>native \ Convert a code address to the processors |
| |
\ native address. This is used in doprim, and |
| |
\ code/code: primitive definitions word to |
| |
\ convert the addresses. |
| |
\ The only target where we need this is the misc |
| |
\ which is a 16 Bit processor with word addresses |
| |
\ but the forth system we build has a normal byte |
| |
\ addressed memory model |
| |
|
| |
Plugin doprim, \ compiles start of a primitive |
| |
Plugin docol, \ compiles start of a colon definition |
| |
Plugin doer, |
| |
Plugin fini, \ compiles end of definition ;s |
| |
Plugin doeshandler, |
| |
Plugin dodoes, |
| |
|
| |
Plugin colon-start |
| |
' noop plugin-of colon-start |
| |
Plugin colon-end |
| |
' noop plugin-of colon-end |
| |
|
| |
Plugin ]comp \ starts compilation |
| |
' noop plugin-of ]comp |
| |
Plugin comp[ \ ends compilation |
| |
' noop plugin-of comp[ |
| |
|
| |
Plugin t>body \ we need the system >body |
| |
\ and the target >body |
| |
|
| >TARGET |
>TARGET |
| \ : ; DOES> 13dec92py |
: >body t>body ; |
| \ ] 9may93py/jaw |
|
| |
|
| : ] state on |
|
| BEGIN |
|
| BEGIN >in @ name |
|
| dup c@ 0= WHILE 2drop refill 0= |
|
| ABORT" CROSS: End of file while target compiling" |
|
| REPEAT |
|
| tcom |
|
| state @ |
|
| 0= |
|
| UNTIL ; |
|
| |
|
| \ by the way: defining a second interpreter (a compiler-)loop |
\ Ghost Builder 06oct92py |
| \ is not allowed if a system should be ans conform |
|
| |
|
| : : ( -- colon-sys ) \ Name |
>CROSS |
| (THeader ;Resolve ! there ;Resolve cell+ ! |
hex |
| docol, depth T ] H ; |
\ Values for ghost magic |
| |
4711 Constant <fwd> 4712 Constant <res> |
| |
4713 Constant <imm> 4714 Constant <do:> |
| |
4715 Constant <skip> |
| |
|
| Cond: EXIT ( -- ) restrict? compile ;S ;Cond |
\ Bitmask for ghost flags |
| |
1 Constant <unique> |
| |
2 Constant <primitive> |
| |
|
| |
\ FXIME: move this to general stuff? |
| |
: set-flag ( addr flag -- ) |
| |
over @ or swap ! ; |
| |
|
| |
: reset-flag ( addr flag -- ) |
| |
invert over @ and swap ! ; |
| |
|
| |
: get-flag ( addr flag -- f ) |
| |
swap @ and 0<> ; |
| |
|
| |
|
| |
Struct |
| |
|
| |
\ link to next ghost (always the first element) |
| |
cell% field >next-ghost |
| |
|
| |
\ type of ghost |
| |
cell% field >magic |
| |
|
| |
\ pointer where ghost is in target, or if unresolved |
| |
\ points to the where we have to resolve (linked-list) |
| |
cell% field >link |
| |
|
| |
\ execution semantics (while target compiling) of ghost |
| |
cell% field >exec |
| |
|
| |
\ compilation action of this ghost; this is what is |
| |
\ done to compile a call (or whatever) to this definition. |
| |
\ E.g. >comp contains the semantic of postpone s" |
| |
\ whereas >exec-compile contains the semantic of s" |
| |
cell% field >comp |
| |
|
| |
\ Compilation sematics (while parsing) of this ghost. E.g. |
| |
\ "\" will skip the rest of line. |
| |
\ These semantics are defined by Cond: and |
| |
\ if a word is made immediate in instant, then the >exec2 field |
| |
\ gets copied to here |
| |
cell% field >exec-compile |
| |
|
| |
\ Additional execution semantics of this ghost. This is used |
| |
\ for code generated by instant and for the doer-xt of created |
| |
\ words |
| |
cell% field >exec2 |
| |
|
| |
cell% field >created |
| |
|
| |
\ the xt of the created ghost word itself |
| |
cell% field >ghost-xt |
| |
|
| |
\ pointer to the counted string of the assiciated |
| |
\ assembler label |
| |
cell% field >asm-name |
| |
|
| |
\ mapped primitives have a special address, so |
| |
\ we are able to detect them |
| |
cell% field >asm-dummyaddr |
| |
|
| |
\ for builder (create, variable...) words |
| |
\ the execution symantics of words built are placed here |
| |
\ this is a doer ghost or a dummy ghost |
| |
cell% field >do:ghost |
| |
|
| |
cell% field >ghost-flags |
| |
|
| |
cell% field >ghost-name |
| |
|
| |
End-Struct ghost-struct |
| |
|
| |
Variable ghost-list |
| |
0 ghost-list ! |
| |
|
| |
Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes> |
| |
\ Variable last-ghost \ last ghost that is created |
| |
Variable last-header-ghost \ last ghost definitions with header |
| |
|
| |
\ space for ghosts resolve structure |
| |
\ we create ghosts in a sepearte space |
| |
\ and not to the current host dp, because this |
| |
\ gives trouble with instant while compiling and creating |
| |
\ a ghost for a forward reference |
| |
\ BTW: we cannot allocate another memory region |
| |
\ because allot will check the overflow!! |
| |
Variable cross-space-dp |
| |
Create cross-space 250000 allot here 100 allot align |
| |
Constant cross-space-end |
| |
cross-space cross-space-dp ! |
| |
Variable cross-space-dp-orig |
| |
|
| |
: cross-space-used cross-space-dp @ cross-space - ; |
| |
|
| |
: >space ( -- ) |
| |
dp @ cross-space-dp-orig ! |
| |
cross-space-dp @ dp ! ; |
| |
|
| |
: space> ( -- ) |
| |
dp @ dup cross-space-dp ! |
| |
cross-space-end u> ABORT" CROSS: cross-space overflow" |
| |
cross-space-dp-orig @ dp ! ; |
| |
|
| |
\ this is just for debugging, to see this in the backtrace |
| |
: execute-exec execute ; |
| |
: execute-exec2 execute ; |
| |
: execute-exec-compile execute ; |
| |
|
| |
: NoExec |
| |
executed-ghost @ >exec2 @ |
| |
?dup |
| |
IF execute-exec2 |
| |
ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word" |
| |
THEN ; |
| |
|
| Cond: ; ( -- ) restrict? |
Defer is-forward |
| depth ?dup IF 1- <> ABORT" CROSS: Stack changed" |
|
| ELSE true ABORT" CROSS: Stack empty" THEN |
|
| compile ;S state off |
|
| ;Resolve @ |
|
| IF ;Resolve @ ;Resolve cell+ @ resolve THEN |
|
| ;Cond |
|
| Cond: [ restrict? state off ;Cond |
|
| |
|
| >CROSS |
: (ghostheader) ( -- ) |
| : !does :dodoes tlastcfa @ tuck T ! cell+ ! H ; |
ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward , |
| |
0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ; |
| |
|
| >TARGET |
: ghostheader ( -- ) (ghostheader) 0 , ; |
| Cond: DOES> restrict? |
|
| compile (;code) dodoes, tdoes @ ?dup IF @ T here H resolve THEN |
|
| ;Cond |
|
| : DOES> dodoes, T here H !does depth T ] H ; |
|
| |
|
| >CROSS |
' Ghosts >wordlist Constant ghosts-wordlist |
| \ Creation 01nov92py |
|
| |
|
| \ Builder 11may93jaw |
\ the current wordlist for ghost definitions in the host |
| |
ghosts-wordlist Value current-ghosts |
| |
|
| : Builder ( Create do: "name" -- ) |
: Make-Ghost ( "name" -- ghost ) |
| >in @ alias2 swap dup >in ! >r >r |
>space |
| Make-Ghost rot swap >exec ! , |
\ save current and create in ghost vocabulary |
| r> r> >in ! |
get-current >r current-ghosts set-current |
| also ghosts ' previous swap ! |
>in @ Create >in ! |
| DOES> dup >exec @ execute ; |
\ some forth systems like iForth need the immediate directly |
| |
\ after the word is created |
| : gdoes, ( ghost -- ) >end @ dup >magic @ <fwd> <> |
\ restore current |
| IF dup >link @ dup 0< IF T A, 0 , H drop EXIT THEN drop THEN |
r> set-current |
| :dodoes T A, H gexecute ; |
here (ghostheader) |
| |
bl word count string, align |
| : TCreate ( ghost -- ) |
space> |
| CreateFlag on |
\ set ghost-xt field by doing a search |
| Theader dup gdoes, |
dup >ghost-name count |
| >end @ >exec @ execute ; |
current-ghosts search-wordlist |
| |
0= ABORT" CROSS: Just created, must be there!" |
| |
over >ghost-xt ! |
| |
DOES> |
| |
dup executed-ghost ! |
| |
>exec @ execute-exec ; |
| |
|
| : Build: ( -- [xt] [colon-sys] ) |
\ ghost words 14oct92py |
| :noname postpone TCreate ; |
\ changed: 10may93py/jaw |
| |
|
| : gdoes> ( ghost -- addr flag ) |
Defer search-ghosts |
| state @ IF gexecute true EXIT THEN |
|
| cell+ @ T >body H false ; |
|
| |
|
| \ DO: ;DO 11may93jaw |
: (search-ghosts) ( adr len -- cfa true | 0 ) |
| \ changed to ?EXIT 10may93jaw |
current-ghosts search-wordlist ; |
| |
|
| : (does>) postpone does> ; immediate \ second level does> |
' (search-ghosts) IS search-ghosts |
| |
|
| : DO: ( -- addr [xt] [colon-sys] ) |
: gsearch ( addr len -- ghost true | 0 ) |
| here ghostheader |
search-ghosts |
| :noname |
dup IF swap >body swap THEN ; |
| postpone (does>) postpone gdoes> postpone ?EXIT ; |
|
| |
|
| : ;DO ( addr [xt] [colon-sys] -- ) |
: gfind ( string -- ghost true / string false ) |
| postpone ; ( S addr xt ) |
\ searches for string in word-list ghosts |
| over >exec ! ; immediate |
\ dup count type space |
| |
dup >r count gsearch |
| |
dup IF rdrop ELSE r> swap THEN ; |
| |
|
| : by ( -- addr ) \ Name |
: gdiscover ( xt -- ghost true | xt false ) |
| ghost >end @ ; |
>r ghost-list |
| |
BEGIN @ dup |
| |
WHILE dup >magic @ <fwd> <> |
| |
IF dup >link @ r@ = |
| |
IF rdrop true EXIT THEN |
| |
THEN |
| |
REPEAT |
| |
drop r> false ; |
| |
|
| >TARGET |
: xt>ghost ( xt -- ghost ) |
| \ Variables and Constants 05dec92py |
gdiscover 0= ABORT" CROSS: ghost not found for this xt" ; |
| |
|
| Build: ; |
: Ghost ( "name" -- ghost ) |
| DO: ( ghost -- addr ) ;DO |
>in @ bl word gfind IF nip EXIT THEN |
| Builder Create |
drop >in ! Make-Ghost ; |
| by Create :dovar resolve |
|
| |
|
| Build: T 0 , H ; |
: >ghostname ( ghost -- adr len ) |
| by Create |
>ghost-name count ; |
| Builder Variable |
|
| |
|
| Build: T 0 A, H ; |
: forward? ( ghost -- flag ) |
| by Create |
>magic @ <fwd> = ; |
| Builder AVariable |
|
| |
|
| Build: T 0 , H ; |
: undefined? ( ghost -- flag ) |
| by Create |
>magic @ dup <fwd> = swap <skip> = or ; |
| Builder User |
|
| |
|
| Build: T 0 , 0 , H ; |
: immediate? ( ghost -- flag ) |
| by Create |
>magic @ <imm> = ; |
| Builder 2User |
|
| |
|
| Build: T 0 A, H ; |
Variable TWarnings |
| by Create |
TWarnings on |
| Builder AUser |
Variable Exists-Warnings |
| |
Exists-Warnings on |
| |
|
| Build: ( n -- ) T , H ; |
: exists-warning ( ghost -- ghost ) |
| DO: ( ghost -- n ) T @ H ;DO |
TWarnings @ Exists-Warnings @ and |
| Builder Constant |
IF dup >ghostname warnhead type ." exists " THEN ; |
| by Constant :docon resolve |
|
| |
|
| Build: ( n -- ) T A, H ; |
\ : HeaderGhost Ghost ; |
| by Constant |
|
| Builder AConstant |
|
| |
|
| Build: T 0 , H ; |
Variable reuse-ghosts reuse-ghosts off |
| by Constant |
|
| Builder Value |
|
| |
|
| Build: ( -- ) compile noop ; |
: HeaderGhost ( "name" -- ghost ) |
| DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO |
>in @ |
| Builder Defer |
bl word count |
| |
\ 2dup type space |
| |
current-ghosts search-wordlist |
| |
IF >body dup undefined? reuse-ghosts @ or |
| |
IF nip EXIT |
| |
ELSE exists-warning |
| |
THEN |
| |
drop >in ! |
| |
ELSE >in ! |
| |
THEN |
| |
\ we keep the execution semantics of the prviously |
| |
\ defined words, this is a workaround |
| |
\ for the redefined \ until vocs work |
| |
Make-Ghost ; |
| |
|
| |
: .ghost ( ghost -- ) >ghostname type ; |
| |
|
| |
\ ' >ghostname ALIAS @name |
| |
|
| |
: findghost ( "ghostname" -- ghost ) |
| |
bl word gfind 0= ABORT" CROSS: Ghost don't exists" ; |
| |
|
| |
: [G'] ( -- ghost : name ) |
| |
\G ticks a ghost and returns its address |
| |
findghost |
| |
state @ IF postpone literal THEN ; immediate |
| |
|
| |
: g>xt ( ghost -- xt ) |
| |
\G Returns the xt (cfa) of a ghost. Issues a warning if undefined. |
| |
dup undefined? ABORT" CROSS: forward " >link @ ; |
| |
|
| |
: g>body ( ghost -- body ) |
| |
\G Returns the body-address (pfa) of a ghost. |
| |
\G Issues a warning if undefined (a forward-reference). |
| |
g>xt X >body ; |
| |
|
| |
1 Constant <label> |
| |
|
| |
Struct |
| |
\ bitmask of address type (not used for now) |
| |
cell% field addr-type |
| |
\ if this address is an xt, this field points to the ghost |
| |
cell% field addr-xt-ghost |
| |
\ a bit mask that tells as what part of the cell |
| |
\ is refenced from an address pointer, used for assembler generation |
| |
cell% field addr-refs |
| |
End-Struct addr-struct |
| |
|
| |
: %allocerase ( align size -- addr ) |
| |
dup >r %alloc dup r> erase ; |
| |
|
| |
\ returns the addr struct, define it if 0 reference |
| |
: define-addr-struct ( addr -- struct-addr ) |
| |
dup @ ?dup IF nip EXIT THEN |
| |
addr-struct %allocerase tuck swap ! ; |
| |
|
| \ structural conditionals 17dec92py |
>cross |
| |
|
| >CROSS |
\ Predefined ghosts 12dec92py |
| : ?struc ( flag -- ) ABORT" CROSS: unstructured " ; |
|
| : sys? ( sys -- sys ) dup 0= ?struc ; |
|
| : >mark ( -- sys ) T here 0 , H ; |
|
| : >resolve ( sys -- ) T here over - swap ! H ; |
|
| : <resolve ( sys -- ) T here - , H ; |
|
| >TARGET |
|
| |
|
| \ Structural Conditionals 12dec92py |
Ghost - drop \ need a ghost otherwise "-" would be treated as a number |
| |
|
| Cond: BUT restrict? sys? swap ;Cond |
Ghost 0= drop |
| Cond: YET restrict? sys? dup ;Cond |
Ghost branch Ghost ?branch 2drop |
| |
Ghost unloop Ghost ;S 2drop |
| |
Ghost lit Ghost ! 2drop |
| |
Ghost noop drop |
| |
Ghost over Ghost = Ghost drop 2drop drop |
| |
Ghost 2drop drop |
| |
Ghost 2dup drop |
| |
Ghost call drop |
| |
Ghost @ drop |
| |
Ghost useraddr drop |
| |
Ghost execute drop |
| |
Ghost + drop |
| |
Ghost decimal drop |
| |
Ghost hex drop |
| |
Ghost lit@ drop |
| |
Ghost lit-perform drop |
| |
Ghost lit+ drop |
| |
Ghost does-exec drop |
| |
|
| |
Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop |
| |
Ghost :dovar drop |
| |
|
| |
\ \ Parameter for target systems 06oct92py |
| |
|
| >CROSS |
|
| Variable tleavings |
|
| >TARGET |
|
| |
|
| Cond: DONE ( addr -- ) restrict? tleavings @ |
\ we define it ans like... |
| BEGIN 2dup u> 0= WHILE dup T @ H swap >resolve REPEAT |
wordlist Constant target-environment |
| tleavings ! drop ;Cond |
|
| |
|
| >CROSS |
\ save information of current dictionary to restore with environ> |
| : (leave T here H tleavings @ T , H tleavings ! ; |
Variable env-current |
| >TARGET |
|
| |
|
| Cond: LEAVE restrict? compile branch (leave ;Cond |
: >ENVIRON get-current env-current ! target-environment set-current ; |
| Cond: ?LEAVE restrict? compile 0= compile ?branch (leave ;Cond |
: ENVIRON> env-current @ set-current ; |
| |
|
| \ Structural Conditionals 12dec92py |
>TARGET |
| |
|
| Cond: AHEAD restrict? compile branch >mark ;Cond |
: environment? ( addr len -- [ x ] true | false ) |
| Cond: IF restrict? compile ?branch >mark ;Cond |
\G returns the content of environment variable and true or |
| Cond: THEN restrict? sys? dup T @ H ?struc >resolve ;Cond |
\G false if not present |
| Cond: ELSE restrict? sys? compile AHEAD swap compile THEN ;Cond |
target-environment search-wordlist |
| |
IF EXECUTE true ELSE false THEN ; |
| Cond: BEGIN restrict? T here H ;Cond |
|
| Cond: WHILE restrict? sys? compile IF swap ;Cond |
: $has? ( addr len -- x | false ) |
| Cond: AGAIN restrict? sys? compile branch <resolve ;Cond |
\G returns the content of environment variable |
| Cond: UNTIL restrict? sys? compile ?branch <resolve ;Cond |
\G or false if not present |
| Cond: REPEAT restrict? over 0= ?struc compile AGAIN compile THEN ;Cond |
T environment? H dup IF drop THEN ; |
| |
|
| |
: e? ( "name" -- x ) |
| |
\G returns the content of environment variable. |
| |
\G The variable is expected to exist. If not, issue an error. |
| |
bl word count T environment? H |
| |
0= ABORT" environment variable not defined!" ; |
| |
|
| |
: has? ( "name" --- x | false ) |
| |
\G returns the content of environment variable |
| |
\G or false if not present |
| |
bl word count T $has? H ; |
| |
|
| |
|
| |
>ENVIRON get-order get-current swap 1+ set-order |
| |
true SetValue compiler |
| |
true SetValue cross |
| |
true SetValue standard-threading |
| |
>TARGET previous |
| |
|
| |
0 |
| |
[IFDEF] mach-file drop mach-file count 1 [THEN] |
| |
[IFDEF] machine-file drop machine-file 1 [THEN] |
| |
[IF] included hex |
| |
[ELSE] cr ." No machine description!" ABORT |
| |
[THEN] |
| |
|
| \ Structural Conditionals 12dec92py |
>ENVIRON |
| |
|
| Cond: DO restrict? compile (do) T here H ;Cond |
T has? ec H |
| Cond: ?DO restrict? compile (?do) (leave T here H ;Cond |
[IF] |
| Cond: FOR restrict? compile (for) T here H ;Cond |
false DefaultValue relocate |
| |
false DefaultValue file |
| |
false DefaultValue OS |
| |
false DefaultValue prims |
| |
false DefaultValue floating |
| |
false DefaultValue glocals |
| |
false DefaultValue dcomps |
| |
false DefaultValue hash |
| |
false DefaultValue xconds |
| |
false DefaultValue header |
| |
false DefaultValue backtrace |
| |
false DefaultValue new-input |
| |
false DefaultValue peephole |
| |
false DefaultValue abranch |
| |
true DefaultValue f83headerstring |
| |
true DefaultValue control-rack |
| |
[THEN] |
| |
|
| >CROSS |
true DefaultValue gforthcross |
| : loop] dup <resolve cell - compile DONE compile unloop ; |
true DefaultValue interpreter |
| |
true DefaultValue ITC |
| |
false DefaultValue rom |
| |
true DefaultValue standardthreading |
| |
|
| |
\ ANSForth environment stuff |
| |
8 DefaultValue ADDRESS-UNIT-BITS |
| |
255 DefaultValue MAX-CHAR |
| |
255 DefaultValue /COUNTED-STRING |
| |
|
| |
>TARGET |
| |
s" relocate" T environment? H |
| |
\ JAW why set NIL to this?! |
| |
[IF] drop \ SetValue NIL |
| |
[ELSE] >ENVIRON X NIL SetValue relocate |
| |
[THEN] |
| >TARGET |
>TARGET |
| |
|
| Cond: LOOP restrict? sys? compile (loop) loop] ;Cond |
0 Constant NIL |
| Cond: +LOOP restrict? sys? compile (+loop) loop] ;Cond |
|
| Cond: NEXT restrict? sys? compile (next) loop] ;Cond |
|
| |
|
| \ String words 23feb93py |
>CROSS |
| |
|
| : ," [char] " parse string, T align H ; |
\ \ Create additional parameters 19jan95py |
| |
|
| Cond: ." restrict? compile (.") T ," H ;Cond |
\ currently cross only works for host machines with address-unit-bits |
| Cond: S" restrict? compile (S") T ," H ;Cond |
\ eual to 8 because of s! and sc! |
| Cond: ABORT" restrict? compile (ABORT") T ," H ;Cond |
\ but I start to query the environment just to modularize a little bit |
| |
|
| |
: check-address-unit-bits ( -- ) |
| |
\ s" ADDRESS-UNIT-BITS" environment? |
| |
\ IF 8 <> ELSE true THEN |
| |
\ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!" |
| |
|
| |
\ shit, this doesn't work because environment? is only defined for |
| |
\ gforth.fi and not kernl???.fi |
| |
; |
| |
|
| |
check-address-unit-bits |
| |
8 Constant bits/byte \ we define: byte is address-unit |
| |
|
| |
1 bits/byte lshift Constant maxbyte |
| |
\ this sets byte size for the target machine, (probably right guess) jaw |
| |
|
| |
T |
| |
NIL Constant TNIL |
| |
cell Constant tcell |
| |
cell<< Constant tcell<< |
| |
cell>bit Constant tcell>bit |
| |
bits/char Constant tbits/char |
| |
bits/char H bits/byte T / |
| |
Constant tchar |
| |
float Constant tfloat |
| |
1 bits/char lshift Constant tmaxchar |
| |
[IFUNDEF] bits/byte |
| |
8 Constant tbits/byte |
| |
[ELSE] |
| |
bits/byte Constant tbits/byte |
| |
[THEN] |
| |
H |
| |
tbits/char bits/byte / Constant tbyte |
| |
|
| Cond: IS T ' >body H compile ALiteral compile ! ;Cond |
|
| : IS T ' >body ! H ; |
|
| |
|
| \ LINKED ERR" ENV" 2ENV" 18may93jaw |
\ Variables 06oct92py |
| |
|
| \ linked list primitive |
Variable (tlast) |
| : linked T here over @ A, swap ! H ; |
(tlast) Value tlast TNIL tlast ! \ Last name field |
| |
Variable tlastcfa \ Last code field |
| |
|
| : err" s" ErrLink linked" evaluate T , H |
\ statistics 10jun97jaw |
| [char] " parse string, T align H ; |
|
| |
|
| : env" [char] " parse s" EnvLink linked" evaluate |
Variable headers-named 0 headers-named ! |
| string, T align , H ; |
Variable user-vars 0 user-vars ! |
| |
|
| : 2env" [char] " parse s" EnvLink linked" evaluate |
: target>bitmask-size ( u1 -- u2 ) |
| here >r string, T align , , H |
1- tcell>bit rshift 1+ ; |
| r> dup T c@ H 80 and swap T c! H ; |
|
| |
|
| \ compile must be last 22feb93py |
: allocatetarget ( size -- adr ) |
| |
dup allocate ABORT" CROSS: No memory for target" |
| |
swap over swap erase ; |
| |
|
| |
\ \ memregion.fs |
| |
|
| |
|
| |
Variable last-defined-region \ pointer to last defined region |
| |
Variable region-link \ linked list with all regions |
| |
Variable mirrored-link \ linked list for mirrored regions |
| |
0 dup mirrored-link ! region-link ! |
| |
|
| |
: >rname 9 cells + ; |
| |
: >rtouch 8 cells + ; \ executed when region is accessed |
| |
: >rbm 4 cells + ; \ bitfield per cell witch indicates relocation |
| |
: >rmem 5 cells + ; |
| |
: >rtype 6 cells + ; \ field per cell witch points to a type struct |
| |
: >rrom 7 cells + ; \ a -1 indicates that this region is rom |
| |
: >rlink 3 cells + ; |
| |
: >rdp 2 cells + ; |
| |
: >rlen cell+ ; |
| |
: >rstart ; |
| |
|
| |
: (region) ( addr len region -- ) |
| |
\G change startaddress and length of an existing region |
| |
>r r@ last-defined-region ! |
| |
r@ >rlen ! dup r@ >rstart ! r> >rdp ! ; |
| |
|
| |
: uninitialized -1 ABORT" CROSS: Region is uninitialized" ; |
| |
|
| |
: region ( addr len -- "name" ) |
| |
\G create a new region |
| |
\ check whether predefined region exists |
| |
save-input bl word find >r >r restore-input throw r> r> 0= |
| |
IF \ make region |
| |
drop |
| |
save-input create restore-input throw |
| |
here last-defined-region ! |
| |
over ( startaddr ) , ( length ) , ( dp ) , |
| |
region-link linked 0 , 0 , 0 , 0 , |
| |
['] uninitialized , |
| |
bl word count string, |
| |
ELSE \ store new parameters in region |
| |
bl word drop |
| |
>body (region) |
| |
THEN ; |
| |
|
| Cond: compile ( -- ) restrict? \ name |
: borders ( region -- startaddr endaddr ) |
| name gfind dup 0= ABORT" CROSS: Can't compile" |
\G returns lower and upper region border |
| 0> IF gexecute |
dup >rstart @ swap >rlen @ over + ; |
| ELSE dup >magic @ <imm> = |
|
| IF gexecute |
: extent ( region -- startaddr len ) |
| ELSE compile (compile) gexecute THEN THEN ;Cond |
\G returns the really used area |
| |
dup >rstart @ swap >rdp @ over - ; |
| Cond: postpone ( -- ) restrict? \ name |
|
| name gfind dup 0= ABORT" CROSS: Can't compile" |
: area ( region -- startaddr totallen ) |
| 0> IF gexecute |
\G returns the total area |
| ELSE dup >magic @ <imm> = |
dup >rstart @ swap >rlen @ ; |
| IF gexecute |
|
| ELSE compile (compile) gexecute THEN THEN ;Cond |
: dp@ ( region -- dp ) |
| |
>rdp @ ; |
| |
|
| |
: mirrored ( -- ) |
| |
\G mark last defined region as mirrored |
| |
mirrored-link |
| |
align linked last-defined-region @ , ; |
| |
|
| |
: writeprotected |
| |
\G mark a region as write protected |
| |
-1 last-defined-region @ >rrom ! ; |
| |
|
| |
: .addr ( u -- ) |
| |
\G prints a 16 or 32 Bit nice hex value |
| |
base @ >r hex |
| |
tcell 2 u> |
| |
IF s>d <# # # # # [char] . hold # # # # #> type |
| |
ELSE s>d <# # # # # # #> type |
| |
THEN r> base ! space ; |
| |
|
| |
: .regions \G display region statistic |
| |
|
| |
\ we want to list the regions in the right order |
| |
\ so first collect all regions on stack |
| |
0 region-link @ |
| |
BEGIN dup WHILE dup @ REPEAT drop |
| |
BEGIN dup |
| |
WHILE cr |
| |
0 >rlink - >r |
| |
r@ >rname count tuck type |
| |
12 swap - 0 max spaces space |
| |
." Start: " r@ >rstart @ dup .addr space |
| |
." End: " r@ >rlen @ + .addr space |
| |
." DP: " r> >rdp @ .addr |
| |
REPEAT drop |
| |
s" rom" T $has? H 0= ?EXIT |
| |
cr ." Mirrored:" |
| |
mirrored-link @ |
| |
BEGIN dup |
| |
WHILE space dup cell+ @ >rname count type @ |
| |
REPEAT drop cr |
| |
; |
| |
|
| |
\ -------- predefined regions |
| |
|
| |
0 0 region address-space |
| |
\ total memory addressed and used by the target system |
| |
|
| |
0 0 region user-region |
| |
\ data for user variables goes here |
| |
\ this has to be defined before dictionary or ram-dictionary |
| |
|
| |
0 0 region dictionary |
| |
\ rom area for the compiler |
| |
|
| |
T has? rom H |
| |
[IF] |
| |
0 0 region ram-dictionary mirrored |
| |
\ ram area for the compiler |
| |
[ELSE] |
| |
' dictionary ALIAS ram-dictionary |
| |
[THEN] |
| |
|
| >MINIMAL |
0 0 region return-stack |
| also minimal |
|
| \ Usefull words 13feb93py |
|
| |
|
| : KB 400 * ; |
0 0 region data-stack |
| |
|
| \ define new [IFDEF] and [IFUNDEF] 20may93jaw |
0 0 region tib-region |
| |
|
| : there? name gfind IF >magic @ <fwd> <> ELSE drop false THEN ; |
' dictionary ALIAS rom-dictionary |
| |
|
| : [IFDEF] there? postpone [IF] ; |
: setup-region ( region -- ) |
| : [IFUNDEF] there? 0= postpone [IF] ; |
>r |
| |
\ allocate mem |
| |
r@ >rlen @ allocatetarget |
| |
r@ >rmem ! |
| |
|
| |
r@ >rlen @ |
| |
target>bitmask-size allocatetarget |
| |
r@ >rbm ! |
| |
|
| |
r@ >rlen @ |
| |
tcell / 1+ cells allocatetarget r@ >rtype ! |
| |
|
| |
['] noop r@ >rtouch ! |
| |
rdrop ; |
| |
|
| |
: setup-target ( -- ) \G initialize target's memory space |
| |
s" rom" T $has? H |
| |
IF \ check for ram and rom... |
| |
\ address-space area nip 0<> |
| |
ram-dictionary area nip 0<> |
| |
rom-dictionary area nip 0<> |
| |
and 0= |
| |
ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!" |
| |
THEN |
| |
address-space area nip |
| |
IF |
| |
address-space area |
| |
ELSE |
| |
dictionary area |
| |
THEN |
| |
nip 0= |
| |
ABORT" CROSS: define at least address-space or dictionary!!" |
| |
|
| \ C: \- \+ Conditional Compiling 09jun93jaw |
\ allocate target for each region |
| |
region-link |
| |
BEGIN @ dup |
| |
WHILE dup |
| |
0 >rlink - >r |
| |
r@ >rlen @ |
| |
IF r@ setup-region |
| |
THEN rdrop |
| |
REPEAT drop ; |
| |
|
| |
\ MakeKernel 22feb99jaw |
| |
|
| |
: makekernel ( start targetsize -- ) |
| |
\G convenience word to setup the memory of the target |
| |
\G used by main.fs of the c-engine based systems |
| |
dictionary (region) setup-target ; |
| |
|
| : C: >in @ there? 0= |
>MINIMAL |
| IF >in ! T : H |
: makekernel makekernel ; |
| ELSE drop |
>CROSS |
| BEGIN bl word dup c@ |
|
| IF count comment? s" ;" compare 0= ?EXIT |
|
| ELSE refill 0= ABORT" CROSS: Out of Input while C:" |
|
| THEN |
|
| AGAIN |
|
| THEN ; |
|
| |
|
| also minimal |
\ \ switched tdp for rom support 03jun97jaw |
| |
|
| : \- there? IF postpone \ THEN ; |
\ second value is here to store some maximal value for statistics |
| : \+ there? 0= IF postpone \ THEN ; |
\ tempdp is also embedded here but has nothing to do with rom support |
| |
\ (needs switched dp) |
| |
|
| |
variable tempdp 0 , \ temporary dp for resolving |
| |
variable tempdp-save |
| |
|
| |
0 [IF] |
| |
variable romdp 0 , \ Dictionary-Pointer for ramarea |
| |
variable ramdp 0 , \ Dictionary-Pointer for romarea |
| |
|
| |
\ |
| |
variable sramdp \ start of ram-area for forth |
| |
variable sromdp \ start of rom-area for forth |
| |
|
| : [IF] postpone [IF] ; |
[THEN] |
| : [THEN] postpone [THEN] ; |
|
| : [ELSE] postpone [ELSE] ; |
|
| |
|
| Cond: [IF] [IF] ;Cond |
|
| Cond: [IFDEF] [IFDEF] ;Cond |
|
| Cond: [IFUNDEF] [IFUNDEF] ;Cond |
|
| Cond: [THEN] [THEN] ;Cond |
|
| Cond: [ELSE] [ELSE] ;Cond |
|
| |
|
| \ save-cross 17mar93py |
0 Value current-region |
| |
0 Value tdp |
| |
Variable fixed \ flag: true: no automatic switching |
| |
\ false: switching is done automatically |
| |
|
| \ i'm not interested in bigforth features this time 10may93jaw |
\ Switch-Policy: |
| \ [IFDEF] file |
\ |
| \ also file |
\ a header is always compiled into rom |
| \ [THEN] |
\ after a created word (create and variable) compilation goes to ram |
| \ included throw after create-file 11may93jaw |
\ |
| |
\ Be careful: If you want to make the data behind create into rom |
| |
\ you have to put >rom before create! |
| |
|
| endian Constant endian |
variable constflag constflag off |
| |
|
| : save-cross ( "name" -- ) |
: activate ( region -- ) |
| bl parse ." Saving to " 2dup type |
\G next code goes to this region |
| w/o bin create-file throw >r |
dup to current-region >rdp to tdp ; |
| image @ there r@ write-file throw |
|
| bit$ @ there 1- cell>bit rshift 1+ r@ write-file throw |
|
| r> close-file throw ; |
|
| |
|
| \ words that should be in minimal |
: (switchram) |
| |
fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT |
| |
ram-dictionary activate ; |
| |
|
| : + + ; : 1- 1- ; |
: switchram |
| : - - ; : 2* 2* ; |
constflag @ |
| : dup dup ; : over over ; |
IF constflag off ELSE (switchram) THEN ; |
| : swap swap ; : rot rot ; |
|
| |
|
| \ include bug5.fs |
: switchrom |
| \ only forth also minimal definitions |
fixed @ ?EXIT rom-dictionary activate ; |
| |
|
| : \ postpone \ ; |
: >tempdp ( addr -- ) |
| : ( postpone ( ; |
tdp tempdp-save ! tempdp to tdp tdp ! ; |
| : include bl word count included ; |
: tempdp> ( -- ) |
| : .( [char] ) parse type ; |
tempdp-save @ to tdp ; |
| : cr cr ; |
|
| |
|
| : times 0 ?DO dup T c, H LOOP drop ; \ used for space table creation |
: >ram fixed off (switchram) fixed on ; |
| only forth also minimal definitions |
: >rom fixed off switchrom fixed on ; |
| |
: >auto fixed off switchrom ; |
| |
|
| \ cross-compiler words |
|
| |
|
| : decimal decimal ; |
|
| : hex hex ; |
|
| |
|
| |
\ : romstart dup sromdp ! romdp ! ; |
| |
\ : ramstart dup sramdp ! ramdp ! ; |
| |
|
| |
\ default compilation goes to rom |
| |
\ when romable support is off, only the rom switch is used (!!) |
| |
>auto |
| |
|
| |
: there tdp @ ; |
| |
|
| |
>TARGET |
| |
|
| |
\ \ Target Memory Handling |
| |
|
| |
\ Byte ordering and cell size 06oct92py |
| |
|
| |
: cell+ tcell + ; |
| |
: cells tcell<< lshift ; |
| |
: chars tchar * ; |
| |
: char+ tchar + ; |
| |
: floats tfloat * ; |
| |
|
| |
>CROSS |
| |
: cell/ tcell<< rshift ; |
| |
>TARGET |
| |
20 CONSTANT bl |
| |
\ TNIL Constant NIL |
| |
|
| |
>CROSS |
| |
|
| |
bigendian |
| |
[IF] |
| |
: DS! ( d addr -- ) tcell bounds swap 1- |
| |
DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; |
| |
: DS@ ( addr -- d ) >r 0 0 r> tcell bounds |
| |
DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ; |
| |
: Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1- |
| |
DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; |
| |
: Sc@ ( addr -- n ) >r 0 0 r> tchar bounds |
| |
DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ; |
| |
[ELSE] |
| |
: DS! ( d addr -- ) tcell bounds |
| |
DO maxbyte ud/mod rot I c! LOOP 2drop ; |
| |
: DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1- |
| |
DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ; |
| |
: Sc! ( n addr -- ) >r s>d r> tchar bounds |
| |
DO maxbyte ud/mod rot I c! LOOP 2drop ; |
| |
: Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1- |
| |
DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ; |
| |
[THEN] |
| |
|
| |
: S! ( n addr -- ) >r s>d r> DS! ; |
| |
: S@ ( addr -- n ) DS@ d>s ; |
| |
|
| |
: taddr>region ( taddr -- region | 0 ) |
| |
\G finds for a target-address the correct region |
| |
\G returns 0 if taddr is not in range of a target memory region |
| |
region-link |
| |
BEGIN @ dup |
| |
WHILE dup >r |
| |
0 >rlink - >r |
| |
r@ >rlen @ |
| |
IF dup r@ borders within |
| |
IF r> r> drop nip |
| |
dup >rtouch @ EXECUTE EXIT |
| |
THEN |
| |
THEN |
| |
r> drop |
| |
r> |
| |
REPEAT |
| |
2drop 0 ; |
| |
|
| |
: taddr>region-abort ( taddr -- region | 0 ) |
| |
\G Same as taddr>region but aborts if taddr is not |
| |
\G a valid address in the target address space |
| |
dup taddr>region dup 0= |
| |
IF drop cr ." Wrong address: " .addr |
| |
-1 ABORT" Address out of range!" |
| |
THEN nip ; |
| |
|
| |
: (>regionimage) ( taddr -- 'taddr ) |
| |
dup |
| |
\ find region we want to address |
| |
taddr>region-abort |
| |
>r |
| |
\ calculate offset in region |
| |
r@ >rstart @ - |
| |
\ add regions real address in our memory |
| |
r> >rmem @ + ; |
| |
|
| |
: (>regionramimage) ( taddr -- 'taddr ) |
| |
\G same as (>regionimage) but aborts if the region is rom |
| |
dup |
| |
\ find region we want to address |
| |
taddr>region-abort |
| |
>r |
| |
r@ >rrom @ ABORT" CROSS: region is write-protected!" |
| |
\ calculate offset in region |
| |
r@ >rstart @ - |
| |
\ add regions real address in our memory |
| |
r> >rmem @ + ; |
| |
|
| |
: (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr ) |
| |
dup |
| |
\ find region we want to address |
| |
taddr>region-abort |
| |
>r |
| |
\ calculate offset in region |
| |
r@ >rstart @ - |
| |
\ add regions real address in our memory |
| |
r> >rbm @ ; |
| |
|
| |
: (>regiontype) ( taddr -- 'taddr ) |
| |
dup |
| |
\ find region we want to address |
| |
taddr>region-abort |
| |
>r |
| |
\ calculate offset in region |
| |
r@ >rstart @ - tcell / cells |
| |
\ add regions real address in our memory |
| |
r> >rtype @ + ; |
| |
|
| |
\ Bit string manipulation 06oct92py |
| |
\ 9may93jaw |
| |
CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c, |
| |
: bits ( n -- n ) chars Bittable + c@ ; |
| |
|
| |
: >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ; |
| |
: +bit ( addr n -- ) >bit over c@ or swap c! ; |
| |
: -bit ( addr n -- ) >bit invert over c@ and swap c! ; |
| |
|
| |
: @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ; |
| |
|
| |
: (relon) ( taddr -- ) |
| |
[ [IFDEF] fd-relocation-table ] |
| |
s" +" fd-relocation-table write-file throw |
| |
dup s>d <# #s #> fd-relocation-table write-line throw |
| |
[ [THEN] ] |
| |
(>regionbm) swap cell/ +bit ; |
| |
|
| |
: (reloff) ( taddr -- ) |
| |
[ [IFDEF] fd-relocation-table ] |
| |
s" -" fd-relocation-table write-file throw |
| |
dup s>d <# #s #> fd-relocation-table write-line throw |
| |
[ [THEN] ] |
| |
(>regionbm) swap cell/ -bit ; |
| |
|
| |
DEFER >image |
| |
DEFER >ramimage |
| |
DEFER relon |
| |
DEFER reloff |
| |
DEFER correcter |
| |
|
| |
T has? relocate H |
| |
[IF] |
| |
' (relon) IS relon |
| |
' (reloff) IS reloff |
| |
' (>regionimage) IS >image |
| |
' (>regionimage) IS >ramimage |
| |
[ELSE] |
| |
' drop IS relon |
| |
' drop IS reloff |
| |
' (>regionimage) IS >image |
| |
' (>regionimage) IS >ramimage |
| |
[THEN] |
| |
|
| |
: enforce-writeprotection ( -- ) |
| |
['] (>regionramimage) IS >ramimage ; |
| |
|
| |
: relax-writeprotection ( -- ) |
| |
['] (>regionimage) IS >ramimage ; |
| |
|
| |
: writeprotection-relaxed? ( -- ) |
| |
['] >ramimage >body @ ['] (>regionimage) = ; |
| |
|
| |
\ Target memory access 06oct92py |
| |
|
| |
: align+ ( taddr -- rest ) |
| |
tcell tuck 1- and - [ tcell 1- ] Literal and ; |
| |
: cfalign+ ( taddr -- rest ) |
| |
\ see kernel.fs:cfaligned |
| |
/maxalign tuck 1- and - [ /maxalign 1- ] Literal and ; |
| |
|
| |
>TARGET |
| |
: aligned ( taddr -- ta-addr ) dup align+ + ; |
| |
\ assumes cell alignment granularity (as GNU C) |
| |
|
| |
: cfaligned ( taddr1 -- taddr2 ) |
| |
\ see kernel.fs |
| |
dup cfalign+ + ; |
| |
|
| |
: @ ( taddr -- w ) >image S@ ; |
| |
: ! ( w taddr -- ) >ramimage S! ; |
| |
: c@ ( taddr -- char ) >image Sc@ ; |
| |
: c! ( char taddr -- ) >ramimage Sc! ; |
| |
: 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; |
| |
: 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ; |
| |
|
| |
\ Target compilation primitives 06oct92py |
| |
\ included A! 16may93jaw |
| |
|
| |
: here ( -- there ) there ; |
| |
: allot ( n -- ) tdp +! ; |
| |
: , ( w -- ) T here H tcell T allot ! H ; |
| |
: c, ( char -- ) T here H tchar T allot c! H ; |
| |
: align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ; |
| |
: cfalign ( -- ) |
| |
T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ; |
| |
|
| |
: >address dup 0>= IF tbyte / THEN ; \ ?? jaw |
| |
: A! swap >address swap dup relon T ! H ; |
| |
: A, ( w -- ) >address T here H relon T , H ; |
| |
|
| |
\ high-level ghosts |
| |
|
| |
>CROSS |
| |
|
| |
Ghost (do) Ghost (?do) 2drop |
| |
Ghost (for) drop |
| |
Ghost (loop) Ghost (+loop) 2drop |
| |
Ghost (next) drop |
| |
Ghost (does>) Ghost (does>1) Ghost (does>2) 2drop drop |
| |
Ghost compile, drop |
| |
Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop |
| |
Ghost (C") Ghost c(abort") Ghost type 2drop drop |
| |
Ghost ' drop |
| |
|
| |
\ user ghosts |
| |
|
| |
Ghost state drop |
| |
|
| |
\ \ -------------------- Host/Target copy etc. 29aug01jaw |
| |
|
| |
|
| |
>CROSS |
| |
|
| |
: TD! >image DS! ; |
| |
: TD@ >image DS@ ; |
| |
|
| |
: th-count ( taddr -- host-addr len ) |
| |
\G returns host address of target string |
| |
assert1( tbyte 1 = ) |
| |
dup X c@ swap X char+ >image swap ; |
| |
|
| |
: ht-move ( haddr taddr len -- ) |
| |
\G moves data from host-addr to destination in target-addr |
| |
\G character by character |
| |
swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ; |
| |
|
| |
2Variable last-string |
| |
|
| |
: ht-string, ( addr count -- ) |
| |
dup there swap last-string 2! |
| |
dup T c, H bounds ?DO I c@ T c, H LOOP ; |
| |
: ht-mem, ( addr count ) |
| |
bounds ?DO I c@ T c, H LOOP ; |
| |
|
| |
>TARGET |
| |
|
| |
: count dup X c@ swap X char+ swap ; |
| |
|
| |
: on >r -1 -1 r> TD! ; |
| |
: off T 0 swap ! H ; |
| |
|
| |
: tcmove ( source dest len -- ) |
| |
\G cmove in target memory |
| |
tchar * bounds |
| |
?DO dup T c@ H I T c! H 1+ |
| |
tchar +LOOP drop ; |
| |
|
| |
: td, ( d -- ) |
| |
\G Store a host value as one cell into the target |
| |
there tcell X allot TD! ; |
| |
|
| |
\ \ Load Assembler |
| |
|
| |
>TARGET |
| |
H also Forth definitions |
| |
|
| |
\ FIXME: should we include the assembler really in the forth |
| |
\ dictionary?!?!?!? This conflicts with the existing assembler |
| |
\ of the host forth system!! |
| |
[IFDEF] asm-include asm-include [THEN] hex |
| |
|
| |
previous |
| |
|
| |
|
| |
>CROSS |
| |
|
| |
: (cc) T a, H ; ' (cc) plugin-of colon, |
| |
: (prim) T a, H ; ' (prim) plugin-of prim, |
| |
|
| |
: (cr) >tempdp colon, tempdp> ; ' (cr) plugin-of colon-resolve |
| |
: (ar) T ! H ; ' (ar) plugin-of addr-resolve |
| |
: (dr) ( ghost res-pnt target-addr addr ) |
| |
>tempdp drop over |
| |
dup >magic @ <do:> = |
| |
IF doer, |
| |
ELSE dodoes, |
| |
THEN |
| |
tempdp> ; ' (dr) plugin-of doer-resolve |
| |
|
| |
: (cm) ( -- addr ) |
| |
there -1 colon, ; ' (cm) plugin-of colonmark, |
| |
|
| |
>TARGET |
| |
: compile, ( xt -- ) |
| |
dup xt>ghost >comp @ EXECUTE ; |
| |
>CROSS |
| |
|
| |
\ resolve structure |
| |
|
| |
: >next ; \ link to next field |
| |
: >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer |
| |
: >taddr cell+ cell+ ; |
| |
: >ghost 3 cells + ; |
| |
: >file 4 cells + ; |
| |
: >line 5 cells + ; |
| |
|
| |
: (refered) ( ghost addr tag -- ) |
| |
\G creates a reference to ghost at address taddr |
| |
>space |
| |
rot >link linked |
| |
( taddr tag ) , |
| |
( taddr ) , |
| |
last-header-ghost @ , |
| |
loadfile , |
| |
sourceline# , |
| |
space> |
| |
; |
| |
|
| |
: refered ( ghost tag -- ) |
| |
\G creates a resolve structure |
| |
T here aligned H swap (refered) |
| |
; |
| |
|
| |
: killref ( addr ghost -- ) |
| |
\G kills a forward reference to ghost at position addr |
| |
\G this is used to eleminate a :dovar refence after making a DOES> |
| |
dup >magic @ <fwd> <> IF 2drop EXIT THEN |
| |
swap >r >link |
| |
BEGIN dup @ dup ( addr last this ) |
| |
WHILE dup >taddr @ r@ = |
| |
IF @ over ! |
| |
ELSE nip THEN |
| |
REPEAT rdrop 2drop |
| |
; |
| |
|
| |
Defer resolve-warning |
| |
|
| |
: reswarn-test ( ghost res-struct -- ghost res-struct ) |
| |
over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ; |
| |
|
| |
: reswarn-forward ( ghost res-struct -- ghost res-struct ) |
| |
over warnhead .ghost dup ." is referenced in " |
| |
>ghost @ .ghost ; |
| |
|
| |
\ ' reswarn-test IS resolve-warning |
| |
|
| |
\ resolve 14oct92py |
| |
|
| |
: resolve-loop ( ghost resolve-list tcfa -- ) |
| |
>r |
| |
BEGIN dup WHILE |
| |
\ dup >tag @ 2 = IF reswarn-forward THEN |
| |
resolve-warning |
| |
r@ over >taddr @ |
| |
2 pick >tag @ |
| |
CASE 0 OF colon-resolve ENDOF |
| |
1 OF addr-resolve ENDOF |
| |
2 OF doer-resolve ENDOF |
| |
ENDCASE |
| |
@ \ next list element |
| |
REPEAT 2drop rdrop |
| |
; |
| |
|
| |
\ : resolve-loop ( ghost tcfa -- ghost tcfa ) |
| |
\ >r dup >link @ |
| |
\ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ; |
| |
|
| |
\ exists 9may93jaw |
| |
|
| |
: exists ( ghost tcfa -- ) |
| |
\G print warning and set new target link in ghost |
| |
swap exists-warning |
| |
>link ! ; |
| |
|
| |
: colon-resolved ( ghost -- ) |
| |
\ compiles a call to a colon definition, |
| |
\ compile action for >comp field |
| |
>link @ colon, ; |
| |
|
| |
: prim-resolved ( ghost -- ) |
| |
\ compiles a call to a primitive |
| |
>link @ prim, ; |
| |
|
| |
: (is-forward) ( ghost -- ) |
| |
colonmark, 0 (refered) ; \ compile space for call |
| |
' (is-forward) IS is-forward |
| |
|
| |
0 Value resolved |
| |
|
| |
: resolve-forward-references ( ghost resolve-list -- ) |
| |
\ loop through forward referencies |
| |
comp-state @ >r Resolving comp-state ! |
| |
over >link @ resolve-loop |
| |
r> comp-state ! |
| |
|
| |
['] noop IS resolve-warning ; |
| |
|
| |
|
| |
: (resolve) ( ghost tcfa -- ghost resolve-list ) |
| |
\ check for a valid address, it is a primitive reference |
| |
\ otherwise |
| |
dup taddr>region 0<> IF |
| |
\ define this address in the region address type table |
| |
2dup (>regiontype) define-addr-struct addr-xt-ghost |
| |
\ we define new address only if empty |
| |
\ this is for not to take over the alias ghost |
| |
\ (different ghost, but identical xt) |
| |
\ but the very first that really defines it |
| |
dup @ 0= IF ! ELSE 2drop THEN |
| |
THEN |
| |
swap >r |
| |
r@ to resolved |
| |
|
| |
\ r@ >comp @ ['] is-forward = |
| |
\ ABORT" >comp action not set on a resolved ghost" |
| |
|
| |
\ copmile action defaults to colon-resolved |
| |
\ if this is not right something must be set before |
| |
\ calling resolve |
| |
r@ >comp @ ['] is-forward = IF |
| |
['] colon-resolved r@ >comp ! |
| |
THEN |
| |
r@ >link @ swap \ ( list tcfa R: ghost ) |
| |
\ mark ghost as resolved |
| |
r@ >link ! <res> r@ >magic ! |
| |
r> swap ; |
| |
|
| |
: resolve ( ghost tcfa -- ) |
| |
\G resolve referencies to ghost with tcfa |
| |
\ is ghost resolved?, second resolve means another |
| |
\ definition with the same name |
| |
over undefined? 0= IF exists EXIT THEN |
| |
(resolve) |
| |
( ghost resolve-list ) |
| |
resolve-forward-references ; |
| |
|
| |
: resolve-noforwards ( ghost tcfa -- ) |
| |
\G Same as resolve but complain if there are any |
| |
\G forward references on this ghost |
| |
\ is ghost resolved?, second resolve means another |
| |
\ definition with the same name |
| |
over undefined? 0= IF exists EXIT THEN |
| |
(resolve) |
| |
IF cr ." No forward references allowed on: " .ghost cr |
| |
-1 ABORT" Illegal forward reference" |
| |
THEN |
| |
drop ; |
| |
|
| |
\ gexecute ghost, 01nov92py |
| |
|
| |
: (gexecute) ( ghost -- ) |
| |
dup >comp @ EXECUTE ; |
| |
|
| |
: gexecute ( ghost -- ) |
| |
dup >magic @ <imm> = ABORT" CROSS: gexecute on immediate word" |
| |
(gexecute) ; |
| |
|
| |
: addr, ( ghost -- ) |
| |
dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ; |
| |
|
| |
\ .unresolved 11may93jaw |
| |
|
| |
variable ResolveFlag |
| |
|
| |
\ ?touched 11may93jaw |
| |
|
| |
: ?touched ( ghost -- flag ) dup forward? swap >link @ |
| |
0 <> and ; |
| |
|
| |
: .forwarddefs ( ghost -- ) |
| |
." appeared in:" |
| |
>link |
| |
BEGIN @ dup |
| |
WHILE cr 5 spaces |
| |
dup >ghost @ .ghost |
| |
." file " dup >file @ ?dup IF count type ELSE ." CON" THEN |
| |
." line " dup >line @ .dec |
| |
REPEAT |
| |
drop ; |
| |
|
| |
: ?resolved ( ghost -- ) |
| |
dup ?touched |
| |
IF ResolveFlag on |
| |
dup cr .ghost .forwarddefs |
| |
ELSE drop |
| |
THEN ; |
| |
|
| |
: .unresolved ( -- ) |
| |
ResolveFlag off cr ." Unresolved: " |
| |
ghost-list |
| |
BEGIN @ dup |
| |
WHILE dup ?resolved |
| |
REPEAT drop ResolveFlag @ |
| |
IF |
| |
-1 abort" Unresolved words!" |
| |
ELSE |
| |
." Nothing!" |
| |
THEN |
| |
cr ; |
| |
|
| |
: .stats |
| |
base @ >r decimal |
| |
cr ." named Headers: " headers-named @ . |
| |
r> base ! ; |
| |
|
| |
>MINIMAL |
| |
|
| |
: .unresolved .unresolved ; |
| |
|
| |
>CROSS |
| |
\ Header states 12dec92py |
| |
|
| |
\ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ; |
| |
X has? f83headerstring bigendian or [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+ |
| |
: flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ; |
| |
|
| |
VARIABLE ^imm |
| |
|
| |
\ !! should be target wordsize specific |
| |
$80 constant alias-mask |
| |
$40 constant immediate-mask |
| |
$20 constant restrict-mask |
| |
|
| |
>TARGET |
| |
: immediate immediate-mask flag! |
| |
^imm @ @ dup <imm> = IF drop EXIT THEN |
| |
<res> <> ABORT" CROSS: Cannot immediate a unresolved word" |
| |
<imm> ^imm @ ! ; |
| |
: restrict restrict-mask flag! ; |
| |
|
| |
: isdoer |
| |
\G define a forth word as doer, this makes obviously only sence on |
| |
\G forth processors such as the PSC1000 |
| |
<do:> last-header-ghost @ >magic ! ; |
| |
>CROSS |
| |
|
| |
\ Target Header Creation 01nov92py |
| |
|
| |
: ht-lstring, ( addr count -- ) |
| |
dup T , H bounds ?DO I c@ T c, H LOOP ; |
| |
|
| |
>TARGET |
| |
X has? f83headerstring [IF] |
| |
: name, ( "name" -- ) bl word count ht-string, X cfalign ; |
| |
[ELSE] |
| |
: name, ( "name" -- ) bl word count ht-lstring, X cfalign ; |
| |
[THEN] |
| |
: view, ( -- ) ( dummy ) ; |
| |
>CROSS |
| |
|
| |
\ Target Document Creation (goes to crossdoc.fd) 05jul95py |
| |
|
| |
s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id |
| |
\ contains the file-id of the documentation file |
| |
|
| |
: T-\G ( -- ) |
| |
source >in @ /string doc-file-id write-line throw |
| |
postpone \ ; |
| |
|
| |
Variable to-doc to-doc on |
| |
|
| |
: cross-doc-entry ( -- ) |
| |
to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header |
| |
IF |
| |
s" " doc-file-id write-line throw |
| |
s" make-doc " doc-file-id write-file throw |
| |
|
| |
Last-Header-Ghost @ >ghostname doc-file-id write-file throw |
| |
>in @ |
| |
[char] ( parse 2drop |
| |
[char] ) parse doc-file-id write-file throw |
| |
s" )" doc-file-id write-file throw |
| |
[char] \ parse 2drop |
| |
T-\G |
| |
>in ! |
| |
THEN ; |
| |
|
| |
\ Target TAGS creation |
| |
|
| |
s" kernel.TAGS" r/w create-file throw value tag-file-id |
| |
s" kernel.tags" r/w create-file throw value vi-tag-file-id |
| |
\ contains the file-id of the tags file |
| |
|
| |
Create tag-beg 1 c, 7F c, |
| |
Create tag-end 1 c, 01 c, |
| |
Create tag-bof 1 c, 0C c, |
| |
Create tag-tab 1 c, 09 c, |
| |
|
| |
2variable last-loadfilename 0 0 last-loadfilename 2! |
| |
|
| |
: put-load-file-name ( -- ) |
| |
sourcefilename last-loadfilename 2@ d<> |
| |
IF |
| |
tag-bof count tag-file-id write-line throw |
| |
sourcefilename 2dup |
| |
tag-file-id write-file throw |
| |
last-loadfilename 2! |
| |
s" ,0" tag-file-id write-line throw |
| |
THEN ; |
| |
|
| |
: cross-gnu-tag-entry ( -- ) |
| |
tlast @ 0<> \ not an anonymous (i.e. noname) header |
| |
IF |
| |
put-load-file-name |
| |
source >in @ min tag-file-id write-file throw |
| |
tag-beg count tag-file-id write-file throw |
| |
Last-Header-Ghost @ >ghostname tag-file-id write-file throw |
| |
tag-end count tag-file-id write-file throw |
| |
base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw |
| |
\ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw |
| |
s" ,0" tag-file-id write-line throw |
| |
base ! |
| |
THEN ; |
| |
|
| |
: cross-vi-tag-entry ( -- ) |
| |
tlast @ 0<> \ not an anonymous (i.e. noname) header |
| |
IF |
| |
sourcefilename vi-tag-file-id write-file throw |
| |
tag-tab count vi-tag-file-id write-file throw |
| |
Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw |
| |
tag-tab count vi-tag-file-id write-file throw |
| |
s" /^" vi-tag-file-id write-file throw |
| |
source vi-tag-file-id write-file throw |
| |
s" $/" vi-tag-file-id write-line throw |
| |
THEN ; |
| |
|
| |
: cross-tag-entry ( -- ) |
| |
cross-gnu-tag-entry |
| |
cross-vi-tag-entry ; |
| |
|
| |
\ Check for words |
| |
|
| |
Defer skip? ' false IS skip? |
| |
|
| |
: skipdef ( "name" -- ) |
| |
\G skip definition of an undefined word in undef-words and |
| |
\G all-words mode |
| |
Ghost dup forward? |
| |
IF >magic <skip> swap ! |
| |
ELSE drop THEN ; |
| |
|
| |
: tdefined? ( "name" -- flag ) |
| |
Ghost undefined? 0= ; |
| |
|
| |
: defined2? ( "name" -- flag ) |
| |
\G return true for anything else than forward, even for <skip> |
| |
\G that's what we want |
| |
Ghost forward? 0= ; |
| |
|
| |
: forced? ( "name" -- flag ) |
| |
\G return ture if it is a foreced skip with defskip |
| |
Ghost >magic @ <skip> = ; |
| |
|
| |
: needed? ( -- flag ) \ name |
| |
\G returns a false flag when |
| |
\G a word is not defined |
| |
\G a forward reference exists |
| |
\G so the definition is not skipped! |
| |
bl word gfind |
| |
IF dup undefined? |
| |
nip |
| |
0= |
| |
ELSE drop true THEN ; |
| |
|
| |
: doer? ( "name" -- 0 | addr ) \ name |
| |
Ghost dup >magic @ <do:> = |
| |
IF >link @ ELSE drop 0 THEN ; |
| |
|
| |
: skip-defs ( -- ) |
| |
BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ; |
| |
|
| |
\ Target header creation |
| |
|
| |
Variable NoHeaderFlag |
| |
NoHeaderFlag off |
| |
|
| |
: 0.r ( n1 n2 -- ) |
| |
base @ >r hex |
| |
0 swap <# 0 ?DO # LOOP #> type |
| |
r> base ! ; |
| |
|
| |
: .sym ( adr len -- ) |
| |
\G escapes / and \ to produce sed output |
| |
bounds |
| |
DO I c@ dup |
| |
CASE [char] / OF drop ." \/" ENDOF |
| |
[char] \ OF drop ." \\" ENDOF |
| |
dup OF emit ENDOF |
| |
ENDCASE |
| |
LOOP ; |
| |
|
| |
Defer setup-execution-semantics ' noop IS setup-execution-semantics |
| |
0 Value lastghost |
| |
|
| |
: (THeader ( "name" -- ghost ) |
| |
\ >in @ bl word count type 2 spaces >in ! |
| |
\ wordheaders will always be compiled to rom |
| |
switchrom |
| |
\ build header in target |
| |
NoHeaderFlag @ |
| |
IF NoHeaderFlag off |
| |
ELSE |
| |
T align H view, |
| |
tlast @ dup 0> IF tcell - THEN T A, H there tlast ! |
| |
1 headers-named +! \ Statistic |
| |
>in @ T name, H >in ! |
| |
THEN |
| |
T cfalign here H tlastcfa ! |
| |
\ Old Symbol table sed-script |
| |
\ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in ! |
| |
HeaderGhost |
| |
\ output symbol table to extra file |
| |
dup >ghostname there symentry |
| |
dup Last-Header-Ghost ! dup to lastghost |
| |
dup >magic ^imm ! \ a pointer for immediate |
| |
alias-mask flag! |
| |
cross-doc-entry cross-tag-entry |
| |
setup-execution-semantics |
| |
; |
| |
|
| |
\ this is the resolver information from ":" |
| |
\ resolving is done by ";" |
| |
Variable ;Resolve 1 cells allot |
| |
|
| |
: hereresolve ( ghost -- ) |
| |
there resolve 0 ;Resolve ! ; |
| |
|
| |
: Theader ( "name" -- ghost ) |
| |
(THeader dup hereresolve ; |
| |
|
| |
Variable aprim-nr -20 aprim-nr ! |
| |
|
| |
: copy-execution-semantics ( ghost-from ghost-dest -- ) |
| |
>r |
| |
dup >exec @ r@ >exec ! |
| |
dup >comp @ r@ >comp ! |
| |
dup >exec2 @ r@ >exec2 ! |
| |
dup >exec-compile @ r@ >exec-compile ! |
| |
dup >ghost-xt @ r@ >ghost-xt ! |
| |
dup >created @ r@ >created ! |
| |
rdrop drop ; |
| |
|
| |
>TARGET |
| |
|
| |
: Alias ( cfa -- ) \ name |
| |
>in @ skip? IF 2drop EXIT THEN >in ! |
| |
(THeader ( S xt ghost ) |
| |
2dup swap xt>ghost swap copy-execution-semantics |
| |
over resolve T A, H alias-mask flag! ; |
| |
|
| |
Variable last-prim-ghost |
| |
0 last-prim-ghost ! |
| |
|
| |
: asmprimname, ( ghost -- : name ) |
| |
dup last-prim-ghost ! |
| |
>r |
| |
here bl word count string, r@ >asm-name ! |
| |
aprim-nr @ r> >asm-dummyaddr ! ; |
| |
|
| |
Defer setup-prim-semantics |
| |
|
| |
: mapprim ( "forthname" "asmlabel" -- ) |
| |
THeader -1 aprim-nr +! aprim-nr @ T A, H |
| |
asmprimname, |
| |
setup-prim-semantics ; |
| |
|
| |
: mapprim: ( "forthname" "asmlabel" -- ) |
| |
-1 aprim-nr +! aprim-nr @ |
| |
Ghost tuck swap resolve-noforwards <do:> swap tuck >magic ! |
| |
asmprimname, ; |
| |
|
| |
: Doer: ( cfa -- ) \ name |
| |
>in @ skip? IF 2drop EXIT THEN >in ! |
| |
dup 0< s" prims" T $has? H 0= and |
| |
IF |
| |
.sourcepos ." needs doer: " >in @ bl word count type >in ! cr |
| |
THEN |
| |
Ghost |
| |
tuck swap resolve-noforwards <do:> swap >magic ! ; |
| |
|
| |
Variable prim# |
| |
: first-primitive ( n -- ) prim# ! ; |
| |
: group 0 word drop prim# @ 1- -$200 and prim# ! ; |
| |
: groupadd ( n -- ) drop ; |
| |
: Primitive ( -- ) \ name |
| |
>in @ skip? IF drop EXIT THEN >in ! |
| |
s" prims" T $has? H 0= |
| |
IF |
| |
.sourcepos ." needs prim: " >in @ bl word count type >in ! cr |
| |
THEN |
| |
prim# @ (THeader ( S xt ghost ) |
| |
['] prim-resolved over >comp ! |
| |
dup >ghost-flags <primitive> set-flag |
| |
over resolve-noforwards T A, H alias-mask flag! |
| |
-1 prim# +! ; |
| |
>CROSS |
| |
|
| |
\ Conditionals and Comments 11may93jaw |
| |
|
| |
\G saves the existing cond action, this is used for redefining in |
| |
\G instant |
| |
Variable cond-xt-old |
| |
|
| |
: cond-target ( -- ) |
| |
\G Compiles semantic of redefined cond into new one |
| |
cond-xt-old @ compile, ; immediate restrict |
| |
|
| |
: ;Cond |
| |
postpone ; |
| |
swap ! ; immediate |
| |
|
| |
: Cond: ( "name" -- ) |
| |
\g defines a conditional or another word that must |
| |
\g be executed directly while compiling |
| |
\g these words have no interpretative semantics by default |
| |
Ghost |
| |
>exec-compile |
| |
dup @ cond-xt-old ! |
| |
:NONAME ; |
| |
|
| |
|
| |
: Comment ( -- ) |
| |
>in @ Ghost swap >in ! ' swap |
| |
2dup >exec-compile ! >exec ! ; |
| |
|
| |
Comment ( Comment \ |
| |
|
| |
\ compile 10may93jaw |
| |
|
| |
: compile ( "name" -- ) \ name |
| |
findghost |
| |
dup >exec-compile @ ?dup |
| |
IF nip compile, |
| |
ELSE postpone literal postpone gexecute THEN ; immediate restrict |
| |
|
| |
>TARGET |
| |
|
| |
: ' ( -- xt ) |
| |
\G returns the target-cfa of a ghost |
| |
bl word gfind 0= ABORT" CROSS: Ghost don't exists" |
| |
g>xt ; |
| |
|
| |
\ FIXME: this works for the current use cases, but is not |
| |
\ in all cases correct ;-) |
| |
: comp' X ' 0 ; |
| |
|
| |
Cond: ['] T ' H alit, ;Cond |
| |
|
| |
>CROSS |
| |
|
| |
: [T'] |
| |
\ returns the target-cfa of a ghost, or compiles it as literal |
| |
postpone [G'] |
| |
state @ IF postpone g>xt ELSE g>xt THEN ; immediate |
| |
|
| |
\ \ threading modell 13dec92py |
| |
\ modularized 14jun97jaw |
| |
|
| |
T 2 cells H Value xt>body |
| |
|
| |
: (>body) ( cfa -- pfa ) |
| |
xt>body + ; ' (>body) plugin-of t>body |
| |
|
| |
: fillcfa ( usedcells -- ) |
| |
T cells H xt>body swap - |
| |
assert1( dup 0 >= ) |
| |
0 ?DO 0 X c, tchar +LOOP ; |
| |
|
| |
: (doer,) ( ghost -- ) |
| |
addr, 1 fillcfa ; ' (doer,) plugin-of doer, |
| |
|
| |
: (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol, |
| |
|
| |
' NOOP plugin-of ca>native |
| |
|
| |
: (doprim,) ( -- ) |
| |
there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim, |
| |
|
| |
: (doeshandler,) ( -- ) |
| |
T cfalign H [G'] :doesjump addr, T 0 , H ; ' (doeshandler,) plugin-of doeshandler, |
| |
|
| |
: (dodoes,) ( does-action-ghost -- ) |
| |
]comp [G'] :dodoes addr, comp[ |
| |
addr, |
| |
\ the relocator in the c engine, does not like the |
| |
\ does-address to marked for relocation |
| |
[ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ] |
| |
2 fillcfa ; ' (dodoes,) plugin-of dodoes, |
| |
|
| |
: (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit, |
| |
|
| |
: (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit, |
| |
|
| |
\ if we dont produce relocatable code alit, defaults to lit, jaw |
| |
\ this is just for convenience, so we don't have to define alit, |
| |
\ seperately for embedded systems.... |
| |
T has? relocate H |
| |
[IF] |
| |
: (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit, |
| |
[ELSE] |
| |
: (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit, |
| |
[THEN] |
| |
|
| |
: (fini,) compile ;s ; ' (fini,) plugin-of fini, |
| |
|
| |
[IFUNDEF] (code) |
| |
Defer (code) |
| |
Defer (end-code) |
| |
[THEN] |
| |
|
| |
>TARGET |
| |
: Code |
| |
defempty? |
| |
(THeader ( ghost ) |
| |
['] prim-resolved over >comp ! |
| |
there resolve-noforwards |
| |
|
| |
[ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF] |
| |
doprim, |
| |
[THEN] |
| |
depth (code) ; |
| |
|
| |
\ FIXME : no-compile -1 ABORT" this ghost is not for compilation" ; |
| |
|
| |
: Code: |
| |
defempty? |
| |
Ghost >r |
| |
r@ >ghostname there symentry |
| |
r@ there ca>native resolve-noforwards |
| |
<do:> r@ >magic ! |
| |
r> drop |
| |
depth (code) ; |
| |
|
| |
: end-code |
| |
(end-code) |
| |
depth ?dup IF 1- <> ABORT" CROSS: Stack changed" |
| |
ELSE true ABORT" CROSS: Stack empty" THEN |
| |
; |
| |
|
| |
>CROSS |
| |
|
| |
\ tLiteral 12dec92py |
| |
|
| |
>TARGET |
| |
Cond: \G T-\G ;Cond |
| |
|
| |
Cond: Literal ( n -- ) lit, ;Cond |
| |
Cond: ALiteral ( n -- ) alit, ;Cond |
| |
|
| |
: Char ( "<char>" -- ) bl word char+ c@ ; |
| |
Cond: [Char] ( "<char>" -- ) Char lit, ;Cond |
| |
|
| |
: (x#) ( adr len base -- ) |
| |
base @ >r base ! 0 0 name >number 2drop drop r> base ! ; |
| |
|
| |
: d# $0a (x#) ; |
| |
: h# $010 (x#) ; |
| |
|
| |
Cond: d# $0a (x#) lit, ;Cond |
| |
Cond: h# $010 (x#) lit, ;Cond |
| |
|
| |
tchar 1 = [IF] |
| |
Cond: chars ;Cond |
| |
[THEN] |
| |
|
| |
\ some special literals 27jan97jaw |
| |
|
| |
Cond: MAXU |
| |
-1 s>d dlit, |
| |
;Cond |
| |
|
| |
tcell 2 = tcell 4 = or tcell 8 = or 0= |
| |
[IF] |
| |
.( Warning: MINI and MAXI may not work with this host) cr |
| |
[THEN] |
| |
|
| |
Cond: MINI |
| |
tcell 2 = IF $8000 ELSE $80000000 THEN 0 |
| |
tcell 8 = IF swap THEN dlit, |
| |
;Cond |
| |
|
| |
Cond: MAXI |
| |
tcell 2 = IF $7fff ELSE $7fffffff THEN 0 |
| |
tcell 8 = IF drop -1 swap THEN dlit, |
| |
;Cond |
| |
|
| |
>CROSS |
| |
|
| |
\ Target compiling loop 12dec92py |
| |
\ ">tib trick thrown out 10may93jaw |
| |
\ number? defined at the top 11may93jaw |
| |
\ replaced >in by save-input |
| |
|
| |
: discard 0 ?DO drop LOOP ; |
| |
|
| |
\ compiled word might leave items on stack! |
| |
: tcom ( x1 .. xn n name -- ) |
| |
\ dup count type space |
| |
gfind |
| |
IF >r ( discard saved input state ) discard r> |
| |
dup >exec-compile @ ?dup |
| |
IF nip execute-exec-compile ELSE gexecute THEN |
| |
EXIT |
| |
THEN |
| |
number? dup |
| |
IF 0> IF swap lit, THEN lit, discard |
| |
ELSE 2drop restore-input throw Ghost gexecute THEN ; |
| |
|
| |
\ : ; DOES> 13dec92py |
| |
\ ] 9may93py/jaw |
| |
|
| |
>CROSS |
| |
|
| |
: compiling-state ( -- ) |
| |
\G set states to compililng |
| |
Compiling comp-state ! |
| |
\ if we have a state in target, change it with the compile state |
| |
[G'] state dup undefined? 0= |
| |
IF >ghost-xt @ execute X on ELSE drop THEN ; |
| |
|
| |
: interpreting-state ( -- ) |
| |
\G set states to interpreting |
| |
\ if target has a state variable, change it according to our state |
| |
[G'] state dup undefined? 0= |
| |
IF >ghost-xt @ execute X off ELSE drop THEN |
| |
Interpreting comp-state ! ; |
| |
|
| |
>TARGET |
| |
|
| |
: ] |
| |
compiling-state |
| |
BEGIN |
| |
BEGIN save-input bl word |
| |
dup c@ 0= WHILE drop discard refill 0= |
| |
ABORT" CROSS: End of file while target compiling" |
| |
REPEAT |
| |
tcom |
| |
compiling? 0= |
| |
UNTIL ; |
| |
|
| |
\ by the way: defining a second interpreter (a compiler-)loop |
| |
\ is not allowed if a system should be ans conform |
| |
|
| |
: (:) ( ghost -- ) |
| |
\ common factor of : and :noname. Prepare ;Resolve and start definition |
| |
;Resolve ! there ;Resolve cell+ ! |
| |
docol, ]comp colon-start depth T ] H ; |
| |
|
| |
: : ( -- colon-sys ) \ Name |
| |
defempty? |
| |
constflag off \ don't let this flag work over colon defs |
| |
\ just to go sure nothing unwanted happens |
| |
>in @ skip? IF drop skip-defs EXIT THEN >in ! |
| |
(THeader (:) ; |
| |
|
| |
: :noname ( -- colon-sys ) |
| |
X cfalign there |
| |
\ define a nameless ghost |
| |
here ghostheader dup last-header-ghost ! dup to lastghost |
| |
(:) ; |
| |
|
| |
Cond: EXIT ( -- ) compile ;S ;Cond |
| |
|
| |
Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond |
| |
|
| |
>CROSS |
| |
: LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT" |
| |
;Resolve cell+ @ ; |
| |
|
| |
>TARGET |
| |
|
| |
Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond |
| |
|
| |
Cond: ; ( -- ) |
| |
depth ?dup |
| |
IF 1- <> ABORT" CROSS: Stack changed" |
| |
ELSE true ABORT" CROSS: Stack empty" |
| |
THEN |
| |
colon-end |
| |
fini, |
| |
comp[ |
| |
;Resolve @ |
| |
IF ['] colon-resolved ;Resolve @ >comp ! |
| |
;Resolve @ ;Resolve cell+ @ resolve |
| |
THEN |
| |
interpreting-state |
| |
;Cond |
| |
|
| |
Cond: [ ( -- ) interpreting-state ;Cond |
| |
|
| |
>CROSS |
| |
|
| |
0 Value created |
| |
|
| |
: !does ( does-action -- ) |
| |
tlastcfa @ [G'] :dovar killref |
| |
>space here >r ghostheader space> |
| |
['] colon-resolved r@ >comp ! |
| |
r@ created >do:ghost ! r@ swap resolve |
| |
r> tlastcfa @ >tempdp dodoes, tempdp> ; |
| |
|
| |
Defer instant-interpret-does>-hook ' noop IS instant-interpret-does>-hook |
| |
|
| |
T has? peephole H [IF] |
| |
: does-resolved ( ghost -- ) |
| |
compile does-exec g>xt T a, H ; |
| |
[ELSE] |
| |
: does-resolved ( ghost -- ) |
| |
g>xt T a, H ; |
| |
[THEN] |
| |
|
| |
: resolve-does>-part ( -- ) |
| |
\ resolve words made by builders |
| |
Last-Header-Ghost @ >do:ghost @ ?dup |
| |
IF there resolve THEN ; |
| |
|
| |
>TARGET |
| |
Cond: DOES> |
| |
T here 5 cells H + alit, compile (does>2) compile ;s |
| |
doeshandler, resolve-does>-part |
| |
;Cond |
| |
|
| |
: DOES> |
| |
['] does-resolved created >comp ! |
| |
switchrom doeshandler, T here H !does |
| |
instant-interpret-does>-hook |
| |
depth T ] H ; |
| |
|
| |
>CROSS |
| |
\ Creation 01nov92py |
| |
|
| |
\ Builder 11may93jaw |
| |
|
| |
0 Value built |
| |
|
| |
: Builder ( Create-xt do-ghost "name" -- ) |
| |
\ builds up a builder in current vocabulary |
| |
\ create-xt is executed when word is interpreted |
| |
\ do:-xt is executed when the created word from builder is executed |
| |
\ for do:-xt an additional entry after the normal ghost-entrys is used |
| |
|
| |
ghost to built |
| |
built >created @ 0= IF |
| |
built >created on |
| |
THEN ; |
| |
|
| |
: gdoes, ( ghost -- ) |
| |
\ makes the codefield for a word that is built |
| |
>do:ghost @ dup undefined? 0= |
| |
IF |
| |
dup >magic @ <do:> = |
| |
IF doer, |
| |
ELSE dodoes, |
| |
THEN |
| |
EXIT |
| |
THEN |
| |
\ compile :dodoes gexecute |
| |
\ T here H tcell - reloff |
| |
2 refered |
| |
0 fillcfa |
| |
; |
| |
|
| |
: takeover-x-semantics ( S constructor-ghost new-ghost -- ) |
| |
\g stores execution semantic and compilation semantic in the built word |
| |
swap >do:ghost @ 2dup swap >do:ghost ! |
| |
\ we use the >exec2 field for the semantic of a created word, |
| |
\ using exec or exec2 makes no difference for normal cross-compilation |
| |
\ but is usefull for instant where the exec field is already |
| |
\ defined (e.g. Vocabularies) |
| |
2dup >exec @ swap >exec2 ! |
| |
>comp @ swap >comp ! ; |
| |
|
| |
0 Value createhere |
| |
|
| |
: create-resolve ( -- ) |
| |
created createhere resolve 0 ;Resolve ! ; |
| |
: create-resolve-immediate ( -- ) |
| |
create-resolve T immediate H ; |
| |
|
| |
: TCreate ( <name> -- ) |
| |
create-forward-warn |
| |
IF ['] reswarn-forward IS resolve-warning THEN |
| |
executed-ghost @ (Theader |
| |
dup >created on dup to created |
| |
2dup takeover-x-semantics |
| |
there to createhere drop gdoes, ; |
| |
|
| |
: RTCreate ( <name> -- ) |
| |
\ creates a new word with code-field in ram |
| |
create-forward-warn |
| |
IF ['] reswarn-forward IS resolve-warning THEN |
| |
\ make Alias |
| |
executed-ghost @ (THeader |
| |
dup >created on dup to created |
| |
2dup takeover-x-semantics |
| |
there 0 T a, H alias-mask flag! |
| |
\ store poiter to code-field |
| |
switchram T cfalign H |
| |
there swap T ! H |
| |
there tlastcfa ! |
| |
there to createhere drop gdoes, ; |
| |
|
| |
: Build: ( -- [xt] [colon-sys] ) |
| |
:noname postpone TCreate ; |
| |
|
| |
: BuildSmart: ( -- [xt] [colon-sys] ) |
| |
:noname |
| |
[ T has? rom H [IF] ] |
| |
postpone RTCreate |
| |
[ [ELSE] ] |
| |
postpone TCreate |
| |
[ [THEN] ] ; |
| |
|
| |
: ;Build |
| |
postpone create-resolve postpone ; built >exec ! ; immediate |
| |
|
| |
: ;Build-immediate |
| |
postpone create-resolve-immediate |
| |
postpone ; built >exec ! ; immediate |
| |
|
| |
: gdoes> ( ghost -- addr flag ) |
| |
executed-ghost @ g>body ; |
| |
|
| |
\ DO: ;DO 11may93jaw |
| |
|
| |
: do:ghost! ( ghost -- ) built >do:ghost ! ; |
| |
: doexec! ( xt -- ) built >do:ghost @ >exec ! ; |
| |
|
| |
: DO: ( -- [xt] [colon-sys] ) |
| |
here ghostheader do:ghost! |
| |
:noname postpone gdoes> ; |
| |
|
| |
: by: ( -- [xt] [colon-sys] ) \ name |
| |
Ghost do:ghost! |
| |
:noname postpone gdoes> ; |
| |
|
| |
: ;DO ( [xt] [colon-sys] -- ) |
| |
postpone ; doexec! ; immediate |
| |
|
| |
: by ( -- ) \ Name |
| |
Ghost >do:ghost @ do:ghost! ; |
| |
|
| |
: compile: ( --[xt] [colon-sys] ) |
| |
\G defines a compile time action for created words |
| |
\G by this builder |
| |
:noname ; |
| |
|
| |
: ;compile ( [xt] [colon-sys] -- ) |
| |
postpone ; built >do:ghost @ >comp ! ; immediate |
| |
|
| |
\ Variables and Constants 05dec92py |
| |
|
| |
Builder (Constant) |
| |
Build: ( n -- ) ;Build |
| |
by: :docon ( target-body-addr -- n ) T @ H ;DO |
| |
|
| |
Builder Constant |
| |
Build: ( n -- ) T , H ;Build |
| |
by (Constant) |
| |
|
| |
Builder AConstant |
| |
Build: ( n -- ) T A, H ;Build |
| |
by (Constant) |
| |
|
| |
Builder 2Constant |
| |
Build: ( d -- ) T , , H ;Build |
| |
DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO |
| |
|
| |
Builder Create |
| |
BuildSmart: ;Build |
| |
by: :dovar ( target-body-addr -- addr ) ;DO |
| |
|
| |
Builder Variable |
| |
T has? rom H [IF] |
| |
Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build |
| |
by (Constant) |
| |
[ELSE] |
| |
Build: T 0 , H ;Build |
| |
by Create |
| |
[THEN] |
| |
|
| |
Builder 2Variable |
| |
T has? rom H [IF] |
| |
Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build |
| |
by (Constant) |
| |
[ELSE] |
| |
Build: T 0 , 0 , H ;Build |
| |
by Create |
| |
[THEN] |
| |
|
| |
Builder AVariable |
| |
T has? rom H [IF] |
| |
Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build |
| |
by (Constant) |
| |
[ELSE] |
| |
Build: T 0 A, H ;Build |
| |
by Create |
| |
[THEN] |
| |
|
| |
\ User variables 04may94py |
| |
|
| |
: tup@ user-region >rstart @ ; |
| |
|
| |
\ Variable tup 0 tup ! |
| |
\ Variable tudp 0 tudp ! |
| |
|
| |
: u, ( n -- udp ) |
| |
current-region >r user-region activate .regions |
| |
X here swap X , tup@ - .regions |
| |
r> activate ; |
| |
|
| |
: au, ( n -- udp ) |
| |
current-region >r user-region activate |
| |
X here swap X a, tup@ - |
| |
r> activate ; |
| |
|
| |
T has? no-userspace H [IF] |
| |
|
| |
: buildby |
| |
ghost >exec @ built >exec ! ; |
| |
|
| |
Builder User |
| |
buildby Variable |
| |
by Variable |
| |
|
| |
Builder 2User |
| |
buildby 2Variable |
| |
by 2Variable |
| |
|
| |
Builder AUser |
| |
buildby AVariable |
| |
by AVariable |
| |
|
| |
[ELSE] |
| |
|
| |
Builder User |
| |
Build: 0 u, X , ;Build |
| |
by: :douser ( ghost -- up-addr ) X @ tup@ + ;DO |
| |
|
| |
Builder 2User |
| |
Build: 0 u, X , 0 u, drop ;Build |
| |
by User |
| |
|
| |
Builder AUser |
| |
Build: 0 au, X , ;Build |
| |
by User |
| |
|
| |
[THEN] |
| |
|
| |
Builder (Value) |
| |
Build: ( n -- ) ;Build |
| |
by: :docon ( target-body-addr -- n ) T @ H ;DO |
| |
|
| |
Builder Value |
| |
BuildSmart: T , H ;Build |
| |
by (Value) |
| |
|
| |
Builder AValue |
| |
BuildSmart: T A, H ;Build |
| |
by (Value) |
| |
|
| |
Defer texecute |
| |
|
| |
Builder Defer |
| |
BuildSmart: ( -- ) [T'] noop T A, H ;Build |
| |
by: :dodefer ( ghost -- ) X @ texecute ;DO |
| |
|
| |
Builder interpret/compile: |
| |
Build: ( inter comp -- ) swap T A, A, H ;Build-immediate |
| |
DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO |
| |
|
| |
\ Sturctures 23feb95py |
| |
|
| |
: nalign ( addr1 n -- addr2 ) |
| |
\ addr2 is the aligned version of addr1 wrt the alignment size n |
| |
1- tuck + swap invert and ; |
| |
|
| |
|
| |
Builder (Field) |
| |
Build: ;Build |
| |
by: :dofield T @ H + ;DO |
| |
|
| |
Builder Field |
| |
Build: ( align1 offset1 align size "name" -- align2 offset2 ) |
| |
rot dup T , H ( align1 align size offset1 ) |
| |
+ >r nalign r> ;Build |
| |
by (Field) |
| |
|
| |
>TARGET |
| |
: struct T 1 chars 0 H ; |
| |
: end-struct T 2Constant H ; |
| |
|
| |
: cell% ( n -- size align ) |
| |
T 1 cells H dup ; |
| |
>CROSS |
| |
|
| |
\ Input-Methods 01py |
| |
|
| |
Builder input-method |
| |
Build: ( m v -- m' v ) dup T , cell+ H ;Build |
| |
DO: abort" Not in cross mode" ;DO |
| |
|
| |
Builder input-var |
| |
Build: ( m v size -- m v' ) over T , H + ;Build |
| |
DO: abort" Not in cross mode" ;DO |
| |
|
| |
\ Peephole optimization 05sep01jaw |
| |
|
| |
\ this section defines different compilation |
| |
\ actions for created words |
| |
\ this will help the peephole optimizer |
| |
\ I (jaw) took this from bernds latest cross-compiler |
| |
\ changes but seperated it from the original |
| |
\ Builder words. The final plan is to put this |
| |
\ into a seperate file, together with the peephole |
| |
\ optimizer for cross |
| |
|
| |
|
| |
T has? peephole H [IF] |
| |
|
| |
\ .( loading peephole optimization) cr |
| |
|
| |
>CROSS |
| |
|
| |
: (callc) compile call T >body a, H ; ' (callc) plugin-of colon, |
| |
: (callcm) T here 0 a, 0 a, H ; ' (callcm) plugin-of colonmark, |
| |
: (call-res) >tempdp resolved gexecute tempdp> drop ; |
| |
' (call-res) plugin-of colon-resolve |
| |
: (pprim) dup 0< IF $4000 - ELSE |
| |
cr ." wrong usage of (prim) " |
| |
dup gdiscover IF .ghost ELSE . THEN cr -1 throw THEN |
| |
T a, H ; ' (pprim) plugin-of prim, |
| |
|
| |
\ if we want this, we have to spilt aconstant |
| |
\ and constant!! |
| |
\ Builder (Constant) |
| |
\ compile: g>body X @ lit, ;compile |
| |
|
| |
Builder (Constant) |
| |
compile: g>body compile lit@ T a, H ;compile |
| |
|
| |
Builder (Value) |
| |
compile: g>body compile lit@ T a, H ;compile |
| |
|
| |
\ this changes also Variable, AVariable and 2Variable |
| |
Builder Create |
| |
compile: g>body alit, ;compile |
| |
|
| |
Builder User |
| |
compile: g>body compile useraddr T @ , H ;compile |
| |
|
| |
Builder Defer |
| |
compile: g>body compile lit-perform T A, H ;compile |
| |
|
| |
Builder (Field) |
| |
compile: g>body T @ H compile lit+ T , H ;compile |
| |
|
| |
Builder interpret/compile: |
| |
compile: does-resolved ;compile |
| |
|
| |
Builder input-method |
| |
compile: does-resolved ;compile |
| |
|
| |
Builder input-var |
| |
compile: does-resolved ;compile |
| |
|
| |
[THEN] |
| |
|
| |
\ structural conditionals 17dec92py |
| |
|
| |
>CROSS |
| |
: (ncontrols?) ( n -- ) |
| |
\g We expect n open control structures |
| |
depth over u<= |
| |
ABORT" CROSS: unstructured, stack underflow" |
| |
0 ?DO I pick 0= |
| |
ABORT" CROSS: unstructured" |
| |
LOOP ; ' (ncontrols?) plugin-of ncontrols? |
| |
|
| |
\ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ; |
| |
\ : sys? ( sys -- sys ) dup 0= ?struc ; |
| |
|
| |
: >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ; |
| |
|
| |
X has? abranch [IF] |
| |
: branchoffset ( src dest -- ) drop ; |
| |
: offset, ( n -- ) X A, ; |
| |
[ELSE] |
| |
: branchoffset ( src dest -- ) - tchar / ; \ ?? jaw |
| |
: offset, ( n -- ) X , ; |
| |
[THEN] |
| |
|
| |
:noname compile branch X here branchoffset offset, ; |
| |
IS branch, ( target-addr -- ) |
| |
:noname compile ?branch X here branchoffset offset, ; |
| |
IS ?branch, ( target-addr -- ) |
| |
:noname compile branch T here 0 H offset, ; |
| |
IS branchmark, ( -- branchtoken ) |
| |
:noname compile ?branch T here 0 H offset, ; |
| |
IS ?branchmark, ( -- branchtoken ) |
| |
:noname T here 0 H offset, ; |
| |
IS ?domark, ( -- branchtoken ) |
| |
:noname dup X @ ?struc X here over branchoffset swap X ! ; |
| |
IS branchtoresolve, ( branchtoken -- ) |
| |
:noname branchto, X here ; |
| |
IS branchtomark, ( -- target-addr ) |
| |
|
| |
>TARGET |
| |
|
| |
\ Structural Conditionals 12dec92py |
| |
|
| |
\ CLEANUP Cond: BUT sys? swap ;Cond |
| |
\ CLEANUP Cond: YET sys? dup ;Cond |
| |
|
| |
>CROSS |
| |
|
| |
Variable tleavings 0 tleavings ! |
| |
|
| |
: (done) ( do-addr -- ) |
| |
\G resolve branches of leave and ?leave and ?do |
| |
\G do-addr is the address of the beginning of our |
| |
\G loop so we can take care of nested loops |
| |
tleavings @ |
| |
BEGIN dup |
| |
WHILE |
| |
>r dup r@ cell+ @ \ address of branch |
| |
u> 0= \ lower than DO? |
| |
WHILE |
| |
r@ 2 cells + @ \ branch token |
| |
branchtoresolve, |
| |
r@ @ r> free throw |
| |
REPEAT r> THEN |
| |
tleavings ! drop ; |
| |
|
| |
>TARGET |
| |
|
| |
\ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond |
| |
|
| |
>CROSS |
| |
: (leave) ( branchtoken -- ) |
| |
3 cells allocate throw >r |
| |
T here H r@ cell+ ! |
| |
r@ 2 cells + ! |
| |
tleavings @ r@ ! |
| |
r> tleavings ! ; |
| |
>TARGET |
| |
|
| |
: (leave,) ( -- ) |
| |
branchmark, (leave) ; ' (leave,) plugin-of leave, |
| |
|
| |
: (?leave,) ( -- ) |
| |
compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave, |
| |
|
| |
Cond: LEAVE leave, ;Cond |
| |
Cond: ?LEAVE ?leave, ;Cond |
| |
|
| |
>CROSS |
| |
\ !!JW ToDo : Move to general tools section |
| |
|
| |
: to1 ( x1 x2 xn n -- addr ) |
| |
\G packs n stack elements in am allocated memory region |
| |
dup dup 1+ cells allocate throw dup >r swap 1+ |
| |
0 DO tuck ! cell+ LOOP |
| |
drop r> ; |
| |
|
| |
: 1to ( addr -- x1 x2 xn ) |
| |
\G unpacks the elements saved by to1 |
| |
dup @ swap over cells + swap |
| |
0 DO dup @ swap 1 cells - LOOP |
| |
free throw ; |
| |
|
| |
: loop] ( target-addr -- ) |
| |
branchto, |
| |
dup X here branchoffset offset, |
| |
tcell - (done) ; |
| |
|
| |
: skiploop] ?dup IF branchto, branchtoresolve, THEN ; |
| |
|
| |
>TARGET |
| |
|
| |
\ Structural Conditionals 12dec92py |
| |
|
| |
: (cs-swap) ( x1 x2 -- x2 x1 ) |
| |
swap ; ' (cs-swap) plugin-of cs-swap |
| |
|
| |
: (ahead,) branchmark, ; ' (ahead,) plugin-of ahead, |
| |
|
| |
: (if,) ?branchmark, ; ' (if,) plugin-of if, |
| |
|
| |
: (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then, |
| |
|
| |
: (else,) ( ahead ) branchmark, |
| |
swap |
| |
( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else, |
| |
|
| |
: (begin,) branchtomark, ; ' (begin,) plugin-of begin, |
| |
|
| |
: (while,) ( if ) ?branchmark, |
| |
swap ; ' (while,) plugin-of while, |
| |
|
| |
: (again,) branch, ; ' (again,) plugin-of again, |
| |
|
| |
: (until,) ?branch, ; ' (until,) plugin-of until, |
| |
|
| |
: (repeat,) ( again ) branch, |
| |
( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat, |
| |
|
| |
: (case,) ( -- n ) |
| |
0 ; ' (case,) plugin-of case, |
| |
|
| |
: (of,) ( n -- x1 n ) |
| |
1+ >r |
| |
compile over compile = |
| |
if, compile drop r> ; ' (of,) plugin-of of, |
| |
|
| |
: (endof,) ( x1 n -- x2 n ) |
| |
>r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof, |
| |
|
| |
: (endcase,) ( x1 .. xn n -- ) |
| |
compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase, |
| |
|
| |
>TARGET |
| |
Cond: AHEAD ahead, ;Cond |
| |
Cond: IF if, ;Cond |
| |
Cond: THEN 1 ncontrols? then, ;Cond |
| |
Cond: ENDIF 1 ncontrols? then, ;Cond |
| |
Cond: ELSE 1 ncontrols? else, ;Cond |
| |
|
| |
Cond: BEGIN begin, ;Cond |
| |
Cond: WHILE 1 ncontrols? while, ;Cond |
| |
Cond: AGAIN 1 ncontrols? again, ;Cond |
| |
Cond: UNTIL 1 ncontrols? until, ;Cond |
| |
Cond: REPEAT 2 ncontrols? repeat, ;Cond |
| |
|
| |
Cond: CASE case, ;Cond |
| |
Cond: OF of, ;Cond |
| |
Cond: ENDOF endof, ;Cond |
| |
Cond: ENDCASE endcase, ;Cond |
| |
|
| |
\ Structural Conditionals 12dec92py |
| |
|
| |
: (do,) ( -- target-addr ) |
| |
\ ?? i think 0 is too much! jaw |
| |
0 compile (do) |
| |
branchtomark, 2 to1 ; ' (do,) plugin-of do, |
| |
|
| |
\ alternative for if no ?do |
| |
\ : (do,) |
| |
\ compile 2dup compile = compile IF |
| |
\ compile 2drop compile ELSE |
| |
\ compile (do) branchtomark, 2 to1 ; |
| |
|
| |
: (?do,) ( -- target-addr ) |
| |
0 compile (?do) ?domark, (leave) |
| |
branchtomark, 2 to1 ; ' (?do,) plugin-of ?do, |
| |
|
| |
: (for,) ( -- target-addr ) |
| |
compile (for) branchtomark, ; ' (for,) plugin-of for, |
| |
|
| |
: (loop,) ( target-addr -- ) |
| |
1to compile (loop) loop] |
| |
compile unloop skiploop] ; ' (loop,) plugin-of loop, |
| |
|
| |
: (+loop,) ( target-addr -- ) |
| |
1to compile (+loop) loop] |
| |
compile unloop skiploop] ; ' (+loop,) plugin-of +loop, |
| |
|
| |
: (next,) |
| |
compile (next) loop] compile unloop ; ' (next,) plugin-of next, |
| |
|
| |
Cond: DO do, ;Cond |
| |
Cond: ?DO ?do, ;Cond |
| |
Cond: FOR for, ;Cond |
| |
|
| |
Cond: LOOP 1 ncontrols? loop, ;Cond |
| |
Cond: +LOOP 1 ncontrols? +loop, ;Cond |
| |
Cond: NEXT 1 ncontrols? next, ;Cond |
| |
|
| |
\ String words 23feb93py |
| |
|
| |
: ," [char] " parse ht-string, X align ; |
| |
|
| |
X has? control-rack [IF] |
| |
Cond: ." compile (.") T ," H ;Cond |
| |
Cond: S" compile (S") T ," H ;Cond |
| |
Cond: C" compile (C") T ," H ;Cond |
| |
Cond: ABORT" compile (ABORT") T ," H ;Cond |
| |
[ELSE] |
| |
Cond: ." '" parse tuck 2>r ahead, there 2r> ht-mem, X align |
| |
>r then, r> compile ALiteral compile Literal compile type ;Cond |
| |
Cond: S" '" parse tuck 2>r ahead, there 2r> ht-mem, X align |
| |
>r then, r> compile ALiteral compile Literal ;Cond |
| |
Cond: C" ahead, there [char] " parse ht-string, X align |
| |
>r then, r> compile ALiteral ;Cond |
| |
Cond: ABORT" if, ahead, there [char] " parse ht-string, X align |
| |
>r then, r> compile ALiteral compile c(abort") then, ;Cond |
| |
[THEN] |
| |
|
| |
Cond: IS T ' >body H compile ALiteral compile ! ;Cond |
| |
: IS T >address ' >body ! H ; |
| |
Cond: TO T ' >body H compile ALiteral compile ! ;Cond |
| |
: TO T ' >body ! H ; |
| |
|
| |
Cond: defers T ' >body @ compile, H ;Cond |
| |
|
| |
\ LINKED ERR" ENV" 2ENV" 18may93jaw |
| |
|
| |
\ linked list primitive |
| |
: linked X here over X @ X A, swap X ! ; |
| |
: chained T linked A, H ; |
| |
|
| |
: err" s" ErrLink linked" evaluate T , H |
| |
[char] " parse ht-string, X align ; |
| |
|
| |
: env" [char] " parse s" EnvLink linked" evaluate |
| |
ht-string, X align X , ; |
| |
|
| |
: 2env" [char] " parse s" EnvLink linked" evaluate |
| |
here >r ht-string, X align X , X , |
| |
r> dup T c@ H 80 and swap T c! H ; |
| |
|
| |
\ compile must be last 22feb93py |
| |
|
| |
Cond: [compile] ( -- ) \ name |
| |
\g For immediate words, works even if forward reference |
| |
bl word gfind 0= ABORT" CROSS: Can't compile" |
| |
(gexecute) ;Cond |
| |
|
| |
Cond: postpone ( -- ) \ name |
| |
bl word gfind 0= ABORT" CROSS: Can't compile" |
| |
dup >magic @ <fwd> = |
| |
ABORT" CROSS: Can't postpone on forward declaration" |
| |
dup >magic @ <imm> = |
| |
IF (gexecute) |
| |
ELSE >link @ alit, compile compile, THEN ;Cond |
| |
|
| |
\ save-cross 17mar93py |
| |
|
| |
hex |
| |
|
| |
>CROSS |
| |
Create magic s" Gforth3x" here over allot swap move |
| |
|
| |
bigendian 1+ \ strangely, in magic big=0, little=1 |
| |
tcell 1 = 0 and or |
| |
tcell 2 = 2 and or |
| |
tcell 4 = 4 and or |
| |
tcell 8 = 6 and or |
| |
tchar 1 = 00 and or |
| |
tchar 2 = 28 and or |
| |
tchar 4 = 50 and or |
| |
tchar 8 = 78 and or |
| |
magic 7 + c! |
| |
|
| |
: save-cross ( "image-name" "binary-name" -- ) |
| |
.regions \ s" ec" X $has? IF .regions THEN |
| |
bl parse ." Saving to " 2dup type cr |
| |
w/o bin create-file throw >r |
| |
s" header" X $has? IF |
| |
s" #! " r@ write-file throw |
| |
bl parse r@ write-file throw |
| |
s" --image-file" r@ write-file throw |
| |
#lf r@ emit-file throw |
| |
r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index ) |
| |
?do |
| |
bl over emit-file throw |
| |
loop |
| |
drop |
| |
magic 8 r@ write-file throw \ write magic |
| |
ELSE |
| |
bl parse 2drop |
| |
THEN |
| |
>rom dictionary >rmem @ there |
| |
s" rom" X $has? IF dictionary >rstart @ - THEN |
| |
r@ write-file throw \ write image |
| |
s" relocate" X $has? IF |
| |
dictionary >rbm @ there 1- tcell>bit rshift 1+ |
| |
r@ write-file throw \ write tags |
| |
THEN |
| |
r> close-file throw ; |
| |
|
| |
: save-region ( addr len -- ) |
| |
bl parse w/o bin create-file throw >r |
| |
swap >image swap r@ write-file throw |
| |
r> close-file throw ; |
| |
|
| |
\ save-asm-region 29aug01jaw |
| |
|
| |
Variable name-ptr |
| |
Create name-buf 200 chars allot |
| |
: init-name-buf name-buf name-ptr ! ; |
| |
: nb, name-ptr @ c! 1 chars name-ptr +! ; |
| |
: $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ; |
| |
: @nb name-ptr @ name-buf tuck - ; |
| |
|
| |
\ stores a usefull string representation of the character |
| |
\ in the name buffer |
| |
: name-char, ( c -- ) |
| |
dup 'a 'z 1+ within IF nb, EXIT THEN |
| |
dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN |
| |
dup '0 '9 1+ within IF nb, EXIT THEN |
| |
CASE '+ OF s" _PLUS" $nb, ENDOF |
| |
'- OF s" _MINUS" $nb, ENDOF |
| |
'* OF s" _STAR" $nb, ENDOF |
| |
'/ OF s" _SLASH" $nb, ENDOF |
| |
'' OF s" _TICK" $nb, ENDOF |
| |
'( OF s" _OPAREN" $nb, ENDOF |
| |
') OF s" _CPAREN" $nb, ENDOF |
| |
'[ OF s" _OBRACKET" $nb, ENDOF |
| |
'] OF s" _CBRACKET" $nb, ENDOF |
| |
'! OF s" _STORE" $nb, ENDOF |
| |
'@ OF s" _FETCH" $nb, ENDOF |
| |
'> OF s" _GREATER" $nb, ENDOF |
| |
'< OF s" _LESS" $nb, ENDOF |
| |
'= OF s" _EQUAL" $nb, ENDOF |
| |
'# OF s" _HASH" $nb, ENDOF |
| |
'? OF s" _QUEST" $nb, ENDOF |
| |
': OF s" _COL" $nb, ENDOF |
| |
'; OF s" _SEMICOL" $nb, ENDOF |
| |
', OF s" _COMMA" $nb, ENDOF |
| |
'. OF s" _DOT" $nb, ENDOF |
| |
'" OF s" _DQUOT" $nb, ENDOF |
| |
dup |
| |
base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base ! |
| |
ENDCASE ; |
| |
|
| |
: label-from-ghostname ( ghost -- addr len ) |
| |
dup >ghostname init-name-buf 'L nb, bounds |
| |
?DO I c@ name-char, LOOP |
| |
\ we add the address to a name to make in unique |
| |
\ because one name may appear more then once |
| |
\ there are names (e.g. boot) that may be reference from other |
| |
\ assembler source files, so we declare them as unique |
| |
\ and don't add the address suffix |
| |
dup >ghost-flags @ <unique> and 0= |
| |
IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb, |
| |
ELSE drop |
| |
THEN |
| |
@nb ; |
| |
|
| |
\ FIXME why disabled?! |
| |
: label-from-ghostnameXX ( ghost -- addr len ) |
| |
\ same as (label-from-ghostname) but caches generated names |
| |
dup >asm-name @ ?dup IF nip count EXIT THEN |
| |
\ dup >r (label-from-ghostname) 2dup |
| |
align here >r string, align |
| |
r> r> >asm-name ! ; |
| |
|
| |
: primghostdiscover ( xt -- ghost true | xt false ) |
| |
dup 0= IF false EXIT THEN |
| |
>r last-prim-ghost |
| |
BEGIN @ dup |
| |
WHILE dup >asm-dummyaddr @ r@ = |
| |
IF rdrop true EXIT THEN |
| |
REPEAT |
| |
drop r> false ; |
| |
|
| |
: gdiscover2 ( xt -- ghost true | xt false ) |
| |
dup taddr>region 0= IF false EXIT THEN |
| |
dup (>regiontype) @ dup 0= IF drop false EXIT THEN |
| |
addr-xt-ghost @ dup 0= IF drop false EXIT THEN |
| |
nip true ; |
| |
\ dup >ghost-name @ IF nip true ELSE drop false THEN ; |
| |
|
| |
\ generates a label name for the target address |
| |
: generate-label-name ( taddr -- addr len ) |
| |
gdiscover2 |
| |
IF dup >magic @ <do:> = |
| |
IF >asm-name @ count EXIT THEN |
| |
label-from-ghostname |
| |
ELSE |
| |
primghostdiscover |
| |
IF >asm-name @ count |
| |
ELSE base @ >r hex 0 <# #s 'L hold #> r> base ! |
| |
THEN |
| |
THEN ; |
| |
|
| |
Variable outfile-fd |
| |
|
| |
: $out ( adr len -- ) outfile-fd @ write-file throw ; |
| |
: nlout newline $out ; |
| |
: .ux ( n -- ) |
| |
base @ hex swap 0 <# #S #> $out base ! ; |
| |
|
| |
: save-asm-region-part-aligned ( taddr len -- 'taddr 'len ) |
| |
dup cell/ 0 |
| |
?DO nlout s" .word " $out over @relbit |
| |
IF over X @ generate-label-name $out |
| |
ELSE over X @ s" 0x0" $out .ux |
| |
THEN |
| |
tcell /string |
| |
LOOP ; |
| |
|
| |
: print-bytes ( taddr len n -- taddr' len' ) |
| |
over min dup 0> |
| |
IF nlout s" .byte " $out 0 |
| |
?DO I 0> IF s" , " $out THEN |
| |
over X c@ s" 0x0" $out .ux 1 /string |
| |
LOOP |
| |
THEN ; |
| |
|
| |
: save-asm-region-part ( addr len -- ) |
| |
over dup X aligned swap - ?dup |
| |
IF print-bytes THEN |
| |
save-asm-region-part-aligned |
| |
dup dup X aligned swap - ?dup |
| |
IF 2 pick @relbit ABORT" relocated field splitted" |
| |
print-bytes |
| |
THEN |
| |
2drop ; |
| |
|
| |
: print-label ( taddr -- ) |
| |
nlout generate-label-name $out s" :" $out ; |
| |
|
| |
: snl-calc ( taddr taddr2 -- ) |
| |
tuck over - ; |
| |
|
| |
: skip-nolables ( taddr -- taddr2 taddr len ) |
| |
\G skips memory region where no lables are defined |
| |
\G starting from taddr+1 |
| |
\G Labels will be introduced for each reference mark |
| |
\G in addr-refs. |
| |
\G This word deals with lables at byte addresses as well. |
| |
\G The main idea is to have an intro part which |
| |
\G skips until the next cell boundary, the middle part |
| |
\G which skips whole cells very efficiently and the third |
| |
\G part which skips the bytes to the label in a cell |
| |
dup 1+ dup (>regiontype) |
| |
( S taddr taddr-realstart type-addr ) |
| |
dup @ dup IF addr-refs @ THEN |
| |
swap >r |
| |
over align+ tuck tcell swap - rshift swap 0 |
| |
?DO dup 1 and |
| |
IF drop rdrop snl-calc UNLOOP EXIT THEN |
| |
2/ swap 1+ swap |
| |
LOOP |
| |
drop r> cell+ |
| |
( S .. taddr2 type-addr ) dup |
| |
BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT |
| |
dup >r swap - 1 cells / tcell * + r> |
| |
( S .. taddr2+skiplencells type-addr ) |
| |
@ addr-refs @ 1 tcell lshift or |
| |
BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop |
| |
( S .. taddr2+skiplencells+skiplenbytes ) |
| |
snl-calc ; |
| |
|
| |
: insert-label ( taddr -- ) |
| |
dup 0= IF drop EXIT THEN |
| |
\ ignore everything which points outside our memory regions |
| |
\ maybe a primitive pointer or whatever |
| |
dup taddr>region 0= IF drop EXIT THEN |
| |
dup >r (>regiontype) define-addr-struct addr-refs dup @ |
| |
r> tcell 1- and 1 swap lshift or swap ! ; |
| |
|
| |
\ this generates a sorted list of addresses which must be labels |
| |
\ it scans therefore a whole region |
| |
: generate-label-list-region ( taddr len -- ) |
| |
BEGIN over @relbit IF over X @ insert-label THEN |
| |
tcell /string dup 0< |
| |
UNTIL 2drop ; |
| |
|
| |
: generate-label-list ( -- ) |
| |
region-link |
| |
BEGIN @ dup WHILE |
| |
dup 0 >rlink - extent |
| |
?dup IF generate-label-list-region ELSE drop THEN |
| |
REPEAT drop ; |
| |
|
| |
: create-outfile ( addr len -- ) |
| |
w/o bin create-file throw outfile-fd ! ; |
| |
|
| |
: close-outfile ( -- ) |
| |
outfile-fd @ close-file throw ; |
| |
|
| |
: (save-asm-region) ( region -- ) |
| |
\ ." label list..." |
| |
generate-label-list |
| |
\ ." ok!" cr |
| |
extent ( S taddr len ) |
| |
over insert-label |
| |
2dup + dup insert-label >r ( R end-label ) |
| |
( S taddr len ) drop |
| |
BEGIN |
| |
dup print-label |
| |
dup r@ <> WHILE |
| |
skip-nolables save-asm-region-part |
| |
REPEAT drop rdrop ; |
| |
|
| |
: lineout ( addr len -- ) |
| |
outfile-fd @ write-line throw ; |
| |
|
| |
: save-asm-region ( region adr len -- ) |
| |
create-outfile (save-asm-region) close-outfile ; |
| |
|
| |
\ \ minimal definitions |
| |
|
| |
>MINIMAL also minimal |
| |
|
| |
\ Usefull words 13feb93py |
| |
|
| |
: KB 400 * ; |
| |
|
| |
\ \ [IF] [ELSE] [THEN] ... 14sep97jaw |
| |
|
| |
\ it is useful to define our own structures and not to rely |
| |
\ on the words in the host system |
| |
\ The words in the host system might be defined with vocabularies |
| |
\ this doesn't work with our self-made compile-loop |
| |
|
| |
Create parsed 20 chars allot \ store word we parsed |
| |
|
| |
: upcase |
| |
parsed count bounds |
| |
?DO I c@ toupper I c! LOOP ; |
| |
|
| |
: [ELSE] |
| |
1 BEGIN |
| |
BEGIN bl word count dup WHILE |
| |
comment? 20 umin parsed place upcase parsed count |
| |
2dup s" [IF]" str= >r |
| |
2dup s" [IFUNDEF]" str= >r |
| |
2dup s" [IFDEF]" str= r> or r> or |
| |
IF 2drop 1+ |
| |
ELSE 2dup s" [ELSE]" str= |
| |
IF 2drop 1- dup |
| |
IF 1+ |
| |
THEN |
| |
ELSE |
| |
2dup s" [ENDIF]" str= >r |
| |
s" [THEN]" str= r> or |
| |
IF 1- THEN |
| |
THEN |
| |
THEN |
| |
?dup 0= ?EXIT |
| |
REPEAT |
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2drop refill 0= |
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UNTIL drop ; immediate |
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: [THEN] ( -- ) ; immediate |
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: [ENDIF] ( -- ) ; immediate |
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: [IF] ( flag -- ) |
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0= IF postpone [ELSE] THEN ; immediate |
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Cond: [IF] postpone [IF] ;Cond |
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Cond: [THEN] postpone [THEN] ;Cond |
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Cond: [ELSE] postpone [ELSE] ;Cond |
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\ define new [IFDEF] and [IFUNDEF] 20may93jaw |
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: defined? tdefined? ; |
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: needed? needed? ; |
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: doer? doer? ; |
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\ we want to use IFDEF on compiler directives (e.g. E?) in the source, too |
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: directive? |
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bl word count [ ' target >wordlist ] literal search-wordlist |
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dup IF nip THEN ; |
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|
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: [IFDEF] >in @ directive? swap >in ! |
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0= IF tdefined? ELSE name 2drop true THEN |
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postpone [IF] ; |
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: [IFUNDEF] tdefined? 0= postpone [IF] ; |
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Cond: [IFDEF] postpone [IFDEF] ;Cond |
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Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond |
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\ C: \- \+ Conditional Compiling 09jun93jaw |
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: C: >in @ tdefined? 0= |
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IF >in ! X : |
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ELSE drop |
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BEGIN bl word dup c@ |
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IF count comment? s" ;" str= ?EXIT |
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ELSE refill 0= ABORT" CROSS: Out of Input while C:" |
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THEN |
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AGAIN |
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THEN ; |
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|
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: d? d? ; |
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|
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: \D ( -- "debugswitch" ) |
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\G doesn't skip line when debug switch is on |
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D? 0= IF postpone \ THEN ; |
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|
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: \- ( -- "wordname" ) |
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\G interprets the line if word is not defined |
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tdefined? IF postpone \ THEN ; |
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|
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: \+ ( -- "wordname" ) |
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\G interprets the line if word is defined |
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tdefined? 0= IF postpone \ THEN ; |
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|
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: \? ( -- "envorinstring" ) |
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\G Skip line if environmental variable evaluates to false |
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X has? 0= IF postpone \ THEN ; |
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|
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Cond: \- \- ;Cond |
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Cond: \+ \+ ;Cond |
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Cond: \D \D ;Cond |
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Cond: \? \? ;Cond |
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|
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: ?? bl word find IF execute ELSE drop 0 THEN ; |
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|
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: needed: |
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\G defines ghost for words that we want to be compiled |
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BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ; |
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|
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\ words that should be in minimal |
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|
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create s-buffer 50 chars allot |
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|
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bigendian Constant bigendian |
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|
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: here there ; |
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: equ constant ; |
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: mark there constant ; |
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|
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\ compiler directives |
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: >ram >ram ; |
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: >rom >rom ; |
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: >auto >auto ; |
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: >tempdp >tempdp ; |
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: tempdp> tempdp> ; |
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: const constflag on ; |
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|
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: Redefinitions-start |
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\G Starts a redefinition section. Warnings are disabled and |
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\G existing ghosts are reused. This is used in the kernel |
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\G where ( and \ and the like are redefined |
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twarnings off warnings off reuse-ghosts on ; |
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|
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: Redefinitions-end |
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\G Ends a redefinition section. Warnings are enabled again. |
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twarnings on warnings on reuse-ghosts off ; |
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|
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: warnings name 3 = |
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IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ; |
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|
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: | ; |
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\ : | NoHeaderFlag on ; \ This is broken (damages the last word) |
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|
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: save-cross save-cross ; |
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: save-region save-region ; |
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: tdump swap >image swap dump ; |
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|
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also forth |
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[IFDEF] Label : Label defempty? Label ; [THEN] |
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[IFDEF] start-macros : start-macros defempty? start-macros ; [THEN] |
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\ [IFDEF] builttag : builttag builttag ; [THEN] |
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previous |
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|
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: s" [char] " parse s-buffer place s-buffer count ; \ for environment? |
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: + + ; |
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: 1+ 1 + ; |
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: 2+ 2 + ; |
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: 1- 1- ; |
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: - - ; |
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: and and ; |
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: or or ; |
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: 2* 2* ; |
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: * * ; |
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: / / ; |
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: dup dup ; |
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: ?dup ?dup ; |
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: over over ; |
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: swap swap ; |
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: rot rot ; |
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: drop drop ; |
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: 2drop 2drop ; |
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: = = ; |
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: <> <> ; |
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: 0= 0= ; |
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: lshift lshift ; |
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: 2/ 2/ ; |
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: hex. base @ $10 base ! swap . base ! ; |
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: invert invert ; |
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\ : . . ; |
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|
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: all-words ['] forced? IS skip? ; |
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: needed-words ['] needed? IS skip? ; |
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: undef-words ['] defined2? IS skip? ; |
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: skipdef skipdef ; |
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|
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: \ postpone \ ; immediate |
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: \G T-\G ; immediate |
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: ( postpone ( ; immediate |
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: include bl word count included ; |
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: included swap >image swap included ; |
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: require require ; |
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: needs require ; |
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: .( [char] ) parse type ; |
| |
: ERROR" [char] " parse |
| |
rot |
| |
IF cr ." *** " type ." ***" -1 ABORT" CROSS: Target error, see text above" |
| |
ELSE 2drop |
| |
THEN ; |
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: ." [char] " parse type ; |
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: cr cr ; |
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|
| |
: times 0 ?DO dup X c, LOOP drop ; \ used for space table creation |
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|
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\ only forth also cross also minimal definitions order |
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|
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\ cross-compiler words |
| |
|
| |
: decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ; |
| |
: hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ; |
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|
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\ : tudp X tudp ; |
| |
\ : tup X tup ; |
| |
|
| |
: doc-off false to-doc ! ; |
| |
: doc-on true to-doc ! ; |
| |
|
| |
: declareunique ( "name" -- ) |
| |
\ Sets the unique flag for a ghost. The assembler output |
| |
\ generates labels with the ghostname concatenated with the address |
| |
\ while cross-compiling. The address is concatenated |
| |
\ because we have double occurences of the same name. |
| |
\ If we want to reference the labels from the assembler or C |
| |
\ code we declare them unique, so the address is skipped. |
| |
Ghost >ghost-flags dup @ <unique> or swap ! ; |
| |
|
| |
\ [IFDEF] dbg : dbg dbg ; [THEN] |
| |
|
| \ for debugging... |
\ for debugging... |
| : order order ; |
\ : dbg dbg ; |
| : words words ; |
: horder order ; |
| |
: hwords words ; |
| |
\ : words also ghosts |
| |
\ words previous ; |
| : .s .s ; |
: .s .s ; |
| |
: depth depth ; |
| : bye bye ; |
: bye bye ; |
| |
|
| |
\ dummy |
| |
|
| \ turnkey direction |
\ turnkey direction |
| : H forth ; immediate |
: H forth ; immediate |
| : T minimal ; immediate |
: T minimal ; immediate |
| : G ghosts ; immediate |
: G ghosts ; immediate |
| |
|
| : turnkey 0 set-order also Target definitions |
|
| also Minimal also ; |
|
| |
|
| \ these ones are pefered: |
\ these ones are pefered: |
| |
|
| : lock turnkey ; |
: unlock previous forth also cross ; |
| : unlock forth also cross ; |
|
| |
\ also minimal |
| |
>cross |
| |
|
| |
: turnkey |
| |
ghosts-wordlist 1 set-order |
| |
also target definitions |
| |
also Minimal also ; |
| |
|
| |
>minimal |
| |
|
| |
: [[+++ |
| |
turnkey unlock ; |
| |
|
| unlock definitions also minimal |
unlock definitions also minimal |
| : lock lock ; |
|
| lock |
: lock turnkey ; |
| |
|
| |
Defer +++]]-hook |
| |
: +++]] +++]]-hook lock ; |
| |
|
| |
LOCK |
| |
\ load cross compiler extension defined in mach file |
| |
|
| |
UNLOCK >CROSS |
| |
|
| |
[IFDEF] extend-cross extend-cross [THEN] |
| |
|
| |
LOCK |
