version 1.6, 1994/06/17 12:34:58
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version 1.95, 2001/03/17 21:36:41
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\ CROSS.FS The Cross-Compiler 06oct92py |
\ CROSS.FS The Cross-Compiler 06oct92py |
\ $Id$ |
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\ Idea and implementation: Bernd Paysan (py) |
\ Idea and implementation: Bernd Paysan (py) |
\ Copyright 1992 by the ANSI figForth Development Group |
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\ Log: |
\ Copyright (C) 1995,1996,1997,1998,1999,2000 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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include other.fs \ ansforth extentions for cross |
\ This file is part of Gforth. |
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: comment? ( c-addr u -- c-addr u ) |
\ Gforth is free software; you can redistribute it and/or |
2dup s" (" compare 0= |
\ modify it under the terms of the GNU General Public License |
IF postpone ( |
\ as published by the Free Software Foundation; either version 2 |
ELSE 2dup s" \" compare 0= IF postpone \ THEN |
\ of the License, or (at your option) any later version. |
THEN ; |
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\ This program is distributed in the hope that it will be useful, |
decimal |
\ but WITHOUT ANY WARRANTY; without even the implied warranty of |
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\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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\ GNU General Public License for more details. |
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\ You should have received a copy of the GNU General Public License |
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\ along with this program; if not, write to the Free Software |
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\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
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0 |
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[IF] |
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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 uses 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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Clean up mark> and >resolve stuff jaw |
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\ number? 11may93jaw |
[THEN] |
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\ checks for +, -, $, & ... |
hex |
: leading? ( c-addr u -- c-addr u doubleflag negflag base ) |
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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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: 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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\ debugging for compiling |
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\ print stack at each colon definition |
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\ : : save-input cr bl word count type restore-input throw .s : ; |
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\ Begin CROSS COMPILER: |
\ print stack at each created word |
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\ : create save-input cr bl word count type restore-input throw .s create ; |
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\ GhostNames 9may93jaw |
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\ second name source to search trough list |
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VARIABLE GhostNames |
\ \ ------------- Setup Vocabularies |
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 |
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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 |
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: 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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: >cross also Cross definitions previous ; |
: >cross also Cross definitions previous ; |
Line 112 H
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Line 70 H
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>CROSS |
>CROSS |
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\ Variables 06oct92py |
\ find out whether we are compiling with gforth |
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-1 Constant NIL |
: defined? bl word find nip ; |
Variable image |
defined? emit-file defined? toupper and \ drop 0 |
Variable tlast NIL tlast ! \ Last name field |
[IF] |
Variable tlastcfa \ Last code field |
\ use this in a gforth system |
Variable tdoes \ Resolve does> calls |
: \GFORTH ; immediate |
Variable bit$ |
: \ANSI postpone \ ; immediate |
Variable tdp |
[ELSE] |
: there tdp @ ; |
: \GFORTH postpone \ ; immediate |
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: \ANSI ; immediate |
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[THEN] |
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\ Parameter for target systems 06oct92py |
\ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate |
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\ANSI : [IFDEF] defined? postpone [IF] ; immediate |
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0 \ANSI drop 1 |
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[IF] |
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: \G postpone \ ; immediate |
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: rdrop postpone r> postpone drop ; immediate |
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: name bl word count ; |
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: 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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include machine.fs |
[IFUNDEF] Warnings Variable Warnings [THEN] |
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>TARGET |
\ \ Number parsing 23feb93py |
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\ Byte ordering and cell size 06oct92py |
\ number? number 23feb93py |
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: cell+ cell + ; |
Variable dpl |
: cells cell<< lshift ; |
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: chars ; |
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: floats float * ; |
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>CROSS |
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: cell/ cell<< rshift ; |
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>TARGET |
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20 CONSTANT bl |
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-1 Constant NIL |
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-2 Constant :docol |
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-3 Constant :docon |
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-4 Constant :dovar |
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-5 Constant :douser |
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-6 Constant :dodoes |
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-7 Constant :doesjump |
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>CROSS |
hex |
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Create bases 10 , 2 , A , 100 , |
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\ 16 2 10 character |
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\ !! 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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: sign? ( addr u -- addr u flag ) |
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over c@ [char] - = dup >r |
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IF |
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1 /string |
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THEN |
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r> ; |
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: s>unumber? ( addr u -- ud flag ) |
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over [char] ' = |
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IF \ a ' alone is rather unusual :-) |
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drop char+ c@ 0 true EXIT |
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THEN |
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base @ >r dpl on getbase |
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0. 2swap |
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BEGIN ( d addr len ) |
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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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\ 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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: s>number ( addr len -- d ) |
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\ don't use this, there is no way to tell success |
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s>number? drop ; |
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: snumber? ( c-addr u -- 0 / n -1 / d 0> ) |
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s>number? 0= |
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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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: number? ( string -- string 0 / n -1 / d 0> ) |
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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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: 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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endian 0 pad ! -1 pad c! pad @ 0< |
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= [IF] : bswap ; immediate |
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[ELSE] : bswap ( big / little -- little / big ) 0 |
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cell 1- FOR bits/byte lshift over |
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[ 1 bits/byte lshift 1- ] Literal and or |
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swap bits/byte rshift swap NEXT nip ; |
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[THEN] |
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\ Memory initialisation 05dec92py |
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\ Fixed bug in else part 11may93jaw |
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[IFDEF] Memory \ Memory is a bigFORTH feature |
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also Memory |
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: initmem ( var len -- ) |
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2dup swap handle! >r @ r> erase ; |
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toss |
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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 |
hex \ the defualt base for the cross-compiler is hex !! |
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\ Warnings off |
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>MINIMAL |
\ words that are generaly useful |
: makekernal ( targetsize -- targetsize ) |
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bit$ over 1- cell>bit rshift 1+ initmem |
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image over initmem tdp off ; |
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>CROSS |
: KB 400 * ; |
\ Bit string manipulation 06oct92py |
: >wordlist ( vocabulary-xt -- wordlist-struct ) |
\ 9may93jaw |
also execute get-order swap >r 1- set-order r> ; |
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 ; |
: umax 2dup u< IF swap THEN drop ; |
: +bit ( addr n -- ) >bit over c@ or swap c! ; |
: umin 2dup u> IF swap THEN drop ; |
: -bit ( addr n -- ) >bit invert over c@ and swap c! ; |
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: relon ( taddr -- ) bit$ @ swap cell/ +bit ; |
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: reloff ( taddr -- ) bit$ @ swap cell/ -bit ; |
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\ Target memory access 06oct92py |
: string, ( c-addr u -- ) |
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\ puts down string as cstring |
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dup c, here swap chars dup allot move ; |
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: ," [char] " parse string, ; |
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: 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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: 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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: align+ ( taddr -- rest ) |
hex |
cell tuck 1- and - [ cell 1- ] Literal and ; |
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>TARGET |
\ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are |
: aligned ( taddr -- ta-addr ) dup align+ + ; |
\ for cross-compiling |
\ assumes cell alignment granularity (as GNU C) |
\ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!! |
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: comment? ( c-addr u -- c-addr u ) |
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2dup s" (" compare 0= |
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IF postpone ( |
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ELSE 2dup s" \" compare 0= IF postpone \ THEN |
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THEN ; |
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\ Begin CROSS COMPILER: |
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\ debugging |
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0 [IF] |
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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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[THEN] |
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>CROSS |
>CROSS |
: >image ( taddr -- absaddr ) image @ + ; |
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>TARGET |
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: @ ( taddr -- w ) >image @ bswap ; |
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: ! ( w taddr -- ) >r bswap r> >image ! ; |
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: c@ ( taddr -- char ) >image c@ ; |
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: c! ( char taddr -- ) >image c! ; |
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\ Target compilation primitives 06oct92py |
Vocabulary debugflags \ debug flags for cross |
\ included A! 16may93jaw |
also debugflags get-order over |
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Constant debugflags-wl |
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set-order previous |
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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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: 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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: 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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: [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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: here ( -- there ) there ; |
\ \ -------------------- source file |
: allot ( n -- ) tdp +! ; |
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: , ( w -- ) T here H cell T allot ! H ; |
decimal |
: c, ( char -- ) T here 1 allot c! H ; |
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: align ( -- ) T here H align+ 0 ?DO bl T c, H LOOP ; |
Variable cross-file-list |
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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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cross-file-list Value file-list |
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0 Value source-desc |
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\ file loading |
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: >fl-id 1 cells + ; |
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: >fl-name 2 cells + ; |
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Variable filelist 0 filelist ! |
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Create NoFile ," #load-file#" |
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: loadfile ( -- adr ) |
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source-desc ?dup IF >fl-name ELSE NoFile THEN ; |
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: sourcefilename ( -- adr len ) |
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loadfile count ; |
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\ANSI : sourceline# 0 ; |
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\ \ -------------------- path handling from kernel/paths.fs |
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\ paths.fs path file handling 03may97jaw |
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\ -Changing the search-path: |
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\ fpath+ <path> adds a directory to the searchpath |
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\ fpath= <path>|<path> makes complete now searchpath |
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\ seperator is | |
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\ .fpath displays the search path |
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\ remark I: |
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\ a ./ in the beginning of filename is expanded to the directory the |
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\ current file comes from. ./ can also be included in the search-path! |
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\ ~+/ loads from the current working directory |
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\ remark II: |
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\ if there is no sufficient space for the search path increase it! |
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\ -Creating custom paths: |
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\ It is possible to use the search mechanism on yourself. |
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\ Make a buffer for the path: |
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\ create mypath 100 chars , \ maximum length (is checked) |
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\ 0 , \ real len |
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\ 100 chars allot \ space for path |
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\ use the same functions as above with: |
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\ mypath path+ |
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\ mypath path= |
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\ mypath .path |
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\ do a open with the search path: |
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\ open-path-file ( adr len path -- fd adr len ior ) |
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\ the file is opened read-only; if the file is not found an error is generated |
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: A! dup relon T ! H ; |
\ questions to: wilke@jwdt.com |
: A, ( w -- ) T here H relon T , H ; |
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[IFUNDEF] +place |
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: +place ( adr len adr ) |
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2dup >r >r |
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dup c@ char+ + swap move |
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r> r> dup c@ rot + swap c! ; |
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[THEN] |
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[IFUNDEF] place |
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: place ( c-addr1 u c-addr2 ) |
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2dup c! char+ swap move ; |
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[THEN] |
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\ if we have path handling, use this and the setup of it |
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[IFUNDEF] open-fpath-file |
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create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic |
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sourcepath value fpath |
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: also-path ( adr len path^ -- ) |
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>r |
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\ len check |
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r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!" |
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\ copy into |
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tuck r@ cell+ dup @ cell+ + swap cmove |
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\ make delimiter |
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0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +! |
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; |
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: only-path ( adr len path^ -- ) |
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dup 0 swap cell+ ! also-path ; |
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: path+ ( path-addr "dir" -- ) \ gforth |
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\G Add the directory @var{dir} to the search path @var{path-addr}. |
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name rot also-path ; |
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: fpath+ ( "dir" ) \ gforth |
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\G Add directory @var{dir} to the Forth search path. |
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fpath path+ ; |
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: path= ( path-addr "dir1|dir2|dir3" ) \ gforth |
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\G Make a complete new search path; the path separator is |. |
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name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP |
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rot only-path ; |
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: fpath= ( "dir1|dir2|dir3" ) \ gforth |
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\G Make a complete new Forth search path; the path separator is |. |
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fpath path= ; |
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: path>counted cell+ dup cell+ swap @ ; |
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: next-path ( adr len -- adr2 len2 ) |
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2dup 0 scan |
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dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN |
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>r 1+ -rot r@ 1- -rot |
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r> - ; |
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: previous-path ( path^ -- ) |
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dup path>counted |
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BEGIN tuck dup WHILE repeat ; |
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: .path ( path-addr -- ) \ gforth |
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\G Display the contents of the search path @var{path-addr}. |
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path>counted |
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BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ; |
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: .fpath ( -- ) \ gforth |
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\G Display the contents of the Forth search path. |
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fpath .path ; |
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: absolut-path? ( addr u -- flag ) \ gforth |
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\G A path is absolute if it starts with a / or a ~ (~ expansion), |
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\G or if it is in the form ./*, extended regexp: ^[/~]|./, or if |
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\G it has a colon as second character ("C:..."). Paths simply |
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\G containing a / are not absolute! |
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2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/.... |
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over c@ [char] / = >r |
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over c@ [char] ~ = >r |
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\ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic |
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2 min S" ./" compare 0= |
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r> r> r> or or or ; |
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Create ofile 0 c, 255 chars allot |
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Create tfile 0 c, 255 chars allot |
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: pathsep? dup [char] / = swap [char] \ = or ; |
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: need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ; |
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: extractpath ( adr len -- adr len2 ) |
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BEGIN dup WHILE 1- |
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2dup + c@ pathsep? IF EXIT THEN |
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REPEAT ; |
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: remove~+ ( -- ) |
|
ofile count 3 min s" ~+/" compare 0= |
|
IF |
|
ofile count 3 /string ofile place |
|
THEN ; |
|
|
|
: expandtopic ( -- ) \ stack effect correct? - anton |
|
\ expands "./" into an absolute name |
|
ofile count 2 min s" ./" compare 0= |
|
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 ; |
|
|
|
: compact.. ( adr len -- adr2 len2 ) |
|
\ deletes phrases like "xy/.." out of our directory name 2dec97jaw |
|
over swap |
|
BEGIN dup WHILE |
|
dup >r '/ scan 2dup 4 min s" /../" compare 0= |
|
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 - ; |
|
|
|
: 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>counted |
|
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 |
|
|
>CROSS |
>CROSS |
|
|
\ threading modell 13dec92py |
: add-included-file ( adr len -- adr ) |
|
dup >fl-name char+ allocate throw >r |
|
file-list @ r@ ! r@ file-list ! |
|
r@ >fl-name place r> ; |
|
|
|
: included? ( c-addr u -- f ) |
|
file-list |
|
BEGIN @ dup |
|
WHILE >r 2dup r@ >fl-name count compare 0= |
|
IF rdrop 2drop true EXIT THEN |
|
r> |
|
REPEAT |
|
2drop drop false ; |
|
|
|
false DebugFlag showincludedfiles |
|
|
|
: included1 ( fd adr u -- ) |
|
\ include file adr u / fd |
|
\ we don't use fd with include-file, because the forth system |
|
\ 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 ; |
|
|
|
: include bl word count included ; |
|
|
\ generic threading modell |
: require bl word count required ; |
: docol, ( -- ) :docol T A, 0 , H ; |
|
|
0 [IF] |
|
|
|
also forth definitions previous |
|
|
|
: included ( adr len -- ) included ; |
|
|
|
: required ( adr len -- ) required ; |
|
|
|
: include include ; |
|
|
|
: require require ; |
|
|
|
[THEN] |
|
|
>TARGET |
|
: >body ( cfa -- pfa ) T cell+ cell+ H ; |
|
>CROSS |
>CROSS |
|
hex |
|
|
|
\ \ -------------------- Error Handling 05aug97jaw |
|
|
|
\ Flags |
|
|
|
also forth definitions \ these values may be predefined before |
|
\ the cross-compiler is loaded |
|
|
: dodoes, ( -- ) T :doesjump A, 0 , H ; |
false DefaultValue stack-warn \ check on empty stack at any definition |
|
false DefaultValue create-forward-warn \ warn on forward declaration of created words |
|
|
|
previous >CROSS |
|
|
|
: .dec |
|
base @ decimal swap . base ! ; |
|
|
|
: .sourcepos |
|
cr sourcefilename type ." :" |
|
sourceline# .dec ; |
|
|
|
: warnhead |
|
\G display error-message head |
|
\G perhaps with linenumber and filename |
|
.sourcepos ." Warning: " ; |
|
|
|
: empty? depth IF .sourcepos ." Stack not empty!" THEN ; |
|
|
|
stack-warn [IF] |
|
: defempty? empty? ; |
|
[ELSE] |
|
: defempty? ; immediate |
|
[THEN] |
|
|
|
\ \ GhostNames Ghosts 9may93jaw |
|
|
|
\ second name source to search trough list |
|
|
|
VARIABLE GhostNames |
|
0 GhostNames ! |
|
|
|
: GhostName ( -- addr ) |
|
align here GhostNames @ , GhostNames ! here 0 , |
|
bl word count |
|
\ 2dup type space |
|
string, \ !! cfalign ? |
|
align ; |
|
|
\ Ghost Builder 06oct92py |
\ Ghost Builder 06oct92py |
|
|
Line 243 VARIABLE VocTemp
|
Line 651 VARIABLE VocTemp
|
: <T get-current VocTemp ! also Ghosts definitions ; |
: <T get-current VocTemp ! also Ghosts definitions ; |
: T> previous VocTemp @ set-current ; |
: T> previous VocTemp @ set-current ; |
|
|
|
hex |
4711 Constant <fwd> 4712 Constant <res> |
4711 Constant <fwd> 4712 Constant <res> |
4713 Constant <imm> |
4713 Constant <imm> 4714 Constant <do:> |
|
4715 Constant <skip> |
|
|
|
\ Compiler States |
|
|
|
Variable comp-state |
|
0 Constant interpreting |
|
1 Constant compiling |
|
2 Constant resolving |
|
3 Constant assembling |
|
|
|
Defer lit, ( n -- ) |
|
Defer alit, ( n -- ) |
|
|
|
Defer branch, ( target-addr -- ) \ compiles a branch |
|
Defer ?branch, ( target-addr -- ) \ compiles a ?branch |
|
Defer branchmark, ( -- branch-addr ) \ reserves room for a branch |
|
Defer ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch |
|
Defer ?domark, ( -- branch-addr ) \ reserves room for a ?do branch |
|
Defer branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment) |
|
Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark |
|
Defer branchfrom, ( -- ) \ ?! |
|
Defer branchtomark, ( -- target-addr ) \ marks a branch destination |
|
|
|
Defer colon, ( tcfa -- ) \ compiles call to tcfa at current position |
|
Defer prim, ( tcfa -- ) \ compiles a primitive invocation |
|
\ at current position |
|
Defer colonmark, ( -- addr ) \ marks a colon call |
|
Defer colon-resolve ( tcfa addr -- ) |
|
|
|
Defer addr-resolve ( target-addr addr -- ) |
|
Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt ) |
|
|
|
Defer do, ( -- do-token ) |
|
Defer ?do, ( -- ?do-token ) |
|
Defer for, ( -- for-token ) |
|
Defer loop, ( do-token / ?do-token -- ) |
|
Defer +loop, ( do-token / ?do-token -- ) |
|
Defer next, ( for-token ) |
|
|
|
[IFUNDEF] ca>native |
|
defer ca>native |
|
[THEN] |
|
|
|
\ ghost structure |
|
|
|
: >magic ; \ type of ghost |
|
: >link cell+ ; \ pointer where ghost is in target, or if unresolved |
|
\ points to the where we have to resolve (linked-list) |
|
: >exec cell+ cell+ ; \ execution symantics (while target compiling) of ghost |
|
: >comp 3 cells + ; \ compilation semantics |
|
: >end 4 cells + ; \ room for additional tags |
|
\ for builder (create, variable...) words the |
|
\ execution symantics of words built are placed here |
|
|
|
\ 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 + ; |
|
|
|
\ refer variables |
|
|
|
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 |
|
|
|
: (refered) ( ghost addr tag -- ) |
|
\G creates a reference to ghost at address taddr |
|
rot >r here r@ >link @ , r> >link ! |
|
( taddr tag ) , |
|
( taddr ) , |
|
last-header-ghost @ , |
|
loadfile , |
|
sourceline# , |
|
; |
|
|
\ iForth makes only immediate directly after create |
\ iForth makes only immediate directly after create |
\ make atonce trick! ? |
\ make atonce trick! ? |
|
|
Variable atonce atonce off |
Variable atonce atonce off |
|
|
: NoExec true ABORT" CROSS: Don't execute ghost" ; |
: NoExec true ABORT" CROSS: Don't execute ghost, or immediate target word" ; |
|
|
: GhostHeader <fwd> , 0 , ['] NoExec , ; |
: is-forward ( ghost -- ) |
|
colonmark, 0 (refered) ; \ compile space for call |
|
|
: >magic ; : >link cell+ ; : >exec cell+ cell+ ; |
: GhostHeader <fwd> , 0 , ['] NoExec , ['] is-forward , ; |
: >end 3 cells + ; |
|
|
|
: Make-Ghost ( "name" -- ghost ) |
: Make-Ghost ( "name" -- ghost ) |
>in @ GhostName swap >in ! |
>in @ GhostName swap >in ! |
<T Create atonce @ IF immediate atonce off THEN |
<T Create atonce @ IF immediate atonce off THEN |
here tuck swap ! ghostheader T> |
here tuck swap ! ghostheader T> |
DOES> >exec @ execute ; |
dup last-ghost ! |
|
DOES> dup executed-ghost ! >exec @ execute ; |
|
|
\ ghost words 14oct92py |
\ ghost words 14oct92py |
\ changed: 10may93py/jaw |
\ changed: 10may93py/jaw |
|
|
: gfind ( string -- ghost true/1 / string false ) |
: gfind ( string -- ghost true/1 / string false ) |
\ searches for string in word-list ghosts |
\ searches for string in word-list ghosts |
\ !! wouldn't it be simpler to just use search-wordlist ? ae |
dup count [ ' ghosts >wordlist ] Literal search-wordlist |
dup count [ ' ghosts >body ] ALiteral search-wordlist |
dup IF >r >body nip r> THEN ; |
\ >r get-order 0 set-order also ghosts r> find >r >r |
|
>r r@ IF >body nip THEN r> ; |
: gdiscover ( xt -- ghost true | xt false ) |
\ set-order r> r@ IF >body THEN r> ; |
GhostNames |
|
BEGIN @ dup |
|
WHILE 2dup |
|
cell+ @ dup >magic @ <fwd> <> |
|
>r >link @ = r> and |
|
IF cell+ @ nip true EXIT THEN |
|
REPEAT |
|
drop false ; |
|
|
VARIABLE Already |
VARIABLE Already |
|
|
: ghost ( "name" -- ghost ) |
: ghost ( "name" -- ghost ) |
Already off |
Already off |
>in @ name gfind IF Already on nip EXIT THEN |
>in @ bl word gfind IF atonce off Already on nip EXIT THEN |
drop >in ! Make-Ghost ; |
drop >in ! Make-Ghost ; |
|
|
|
: >ghostname ( ghost -- adr len ) |
|
GhostNames |
|
BEGIN @ dup |
|
WHILE 2dup cell+ @ = |
|
UNTIL nip 2 cells + count |
|
ELSE 2drop |
|
\ true abort" CROSS: Ghostnames inconsistent" |
|
s" ?!?!?!" |
|
THEN ; |
|
|
|
: .ghost ( ghost -- ) >ghostname type ; |
|
|
|
\ ' >ghostname ALIAS @name |
|
|
|
: forward? ( ghost -- flag ) |
|
>magic @ <fwd> = ; |
|
|
|
: undefined? ( ghost -- flag ) |
|
>magic @ dup <fwd> = swap <skip> = or ; |
|
|
|
\ Predefined ghosts 12dec92py |
|
|
|
ghost 0= drop |
|
ghost branch ghost ?branch 2drop |
|
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 (does>) ghost noop 2drop |
|
ghost (.") ghost (S") ghost (ABORT") 2drop drop ( " ) |
|
ghost ' drop |
|
ghost :docol ghost :doesjump ghost :dodoes 2drop drop |
|
ghost :dovar ghost :dodefer ghost :dofield 2drop drop |
|
ghost over ghost = ghost drop 2drop drop |
|
ghost call ghost useraddr ghost execute 2drop drop |
|
ghost + ghost - ghost @ 2drop drop |
|
ghost 2drop drop |
|
ghost 2dup drop |
|
|
|
\ \ Parameter for target systems 06oct92py |
|
|
|
\ we define it ans like... |
|
wordlist Constant target-environment |
|
|
|
VARIABLE env-current \ save information of current dictionary to restore with environ> |
|
|
|
: >ENVIRON get-current env-current ! target-environment set-current ; |
|
: ENVIRON> env-current @ set-current ; |
|
|
|
>TARGET |
|
|
|
: environment? ( adr len -- [ x ] true | false ) |
|
target-environment search-wordlist |
|
IF execute true ELSE false THEN ; |
|
|
|
: e? bl word count T environment? H 0= ABORT" environment variable not defined!" ; |
|
|
|
: has? bl word count T environment? H |
|
IF \ environment variable is present, return its value |
|
ELSE \ environment variable is not present, return false |
|
false \ debug true ABORT" arg" |
|
THEN ; |
|
|
|
: $has? T environment? H IF ELSE false THEN ; |
|
|
|
>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 mach-file count 1 [THEN] |
|
[IFDEF] machine-file machine-file 1 [THEN] |
|
[IF] included hex drop |
|
[ELSE] cr ." No machine description!" ABORT |
|
[THEN] |
|
|
|
>ENVIRON |
|
|
|
T has? ec H |
|
[IF] |
|
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 |
|
[THEN] |
|
|
|
true DefaultValue interpreter |
|
true DefaultValue ITC |
|
false DefaultValue rom |
|
true DefaultValue standardthreading |
|
|
|
>TARGET |
|
s" relocate" T environment? H |
|
[IF] SetValue NIL |
|
[ELSE] >ENVIRON T NIL H SetValue relocate |
|
[THEN] |
|
|
|
>CROSS |
|
|
|
\ \ Create additional parameters 19jan95py |
|
|
|
\ currently cross only works for host machines with address-unit-bits |
|
\ eual to 8 because of s! and sc! |
|
\ 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 |
|
|
|
|
|
\ Variables 06oct92py |
|
|
|
Variable image |
|
Variable tlast TNIL tlast ! \ Last name field |
|
Variable tlastcfa \ Last code field |
|
Variable tdoes \ Resolve does> calls |
|
Variable bit$ |
|
|
|
\ statistics 10jun97jaw |
|
|
|
Variable headers-named 0 headers-named ! |
|
Variable user-vars 0 user-vars ! |
|
|
|
: target>bitmask-size ( u1 -- u2 ) |
|
1- tcell>bit rshift 1+ ; |
|
|
|
: 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 6 cells + ; |
|
: >rbm 5 cells + ; |
|
: >rmem 4 cells + ; |
|
: >rlink 3 cells + ; |
|
: >rdp 2 cells + ; |
|
: >rlen cell+ ; |
|
: >rstart ; |
|
|
|
|
|
: region ( addr len -- ) \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 , bl word count string, |
|
ELSE \ store new parameters in region |
|
bl word drop |
|
>body >r r@ last-defined-region ! |
|
r@ >rlen ! dup r@ >rstart ! r> >rdp ! |
|
THEN ; |
|
|
|
: borders ( region -- startaddr endaddr ) \G returns lower and upper region border |
|
dup >rstart @ swap >rlen @ over + ; |
|
|
|
: extent ( region -- startaddr len ) \G returns the really used area |
|
dup >rstart @ swap >rdp @ over - ; |
|
|
|
: area ( region -- startaddr totallen ) \G returns the total area |
|
dup >rstart @ swap >rlen @ ; |
|
|
|
: mirrored \G mark a region as mirrored |
|
mirrored-link |
|
align linked last-defined-region @ , ; |
|
|
|
: .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 ! ; |
|
|
|
: .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 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] |
|
|
|
0 0 region return-stack |
|
|
|
0 0 region data-stack |
|
|
|
0 0 region tib-region |
|
|
|
' dictionary ALIAS rom-dictionary |
|
|
|
|
|
: setup-target ( -- ) \G initialize targets memory space |
|
s" rom" T $has? H |
|
IF \ check for ram and rom... |
|
\ address-space area nip 0<> |
|
ram-dictionary area nip 0<> |
|
rom-dictionary area nip 0<> |
|
and 0= |
|
ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!" |
|
THEN |
|
address-space area nip |
|
IF |
|
address-space area |
|
ELSE |
|
dictionary area |
|
THEN |
|
nip 0= |
|
ABORT" CROSS: define at least address-space or dictionary!!" |
|
|
|
\ allocate target for each region |
|
region-link |
|
BEGIN @ dup |
|
WHILE dup |
|
0 >rlink - >r |
|
r@ >rlen @ |
|
IF \ allocate mem |
|
r@ >rlen @ dup |
|
|
|
allocatetarget dup image ! |
|
r@ >rmem ! |
|
|
|
target>bitmask-size allocatetarget |
|
dup bit$ ! |
|
r> >rbm ! |
|
|
|
ELSE r> drop THEN |
|
REPEAT drop ; |
|
|
|
\ MakeKernal 22feb99jaw |
|
|
|
: makekernel ( targetsize -- targetsize ) |
|
dup dictionary >rlen ! setup-target ; |
|
|
|
>MINIMAL |
|
: makekernel makekernel ; |
|
>CROSS |
|
|
|
\ \ switched tdp for rom support 03jun97jaw |
|
|
|
\ second value is here to store some maximal value for statistics |
|
\ 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 |
|
|
|
[THEN] |
|
|
|
|
|
0 value tdp |
|
variable fixed \ flag: true: no automatic switching |
|
\ false: switching is done automatically |
|
|
|
\ Switch-Policy: |
|
\ |
|
\ a header is always compiled into rom |
|
\ after a created word (create and variable) compilation goes to ram |
|
\ |
|
\ Be careful: If you want to make the data behind create into rom |
|
\ you have to put >rom before create! |
|
|
|
variable constflag constflag off |
|
|
|
: activate ( region -- ) |
|
\G next code goes to this region |
|
>rdp to tdp ; |
|
|
|
: (switchram) |
|
fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT |
|
ram-dictionary activate ; |
|
|
|
: switchram |
|
constflag @ |
|
IF constflag off ELSE (switchram) THEN ; |
|
|
|
: switchrom |
|
fixed @ ?EXIT rom-dictionary activate ; |
|
|
|
: >tempdp ( addr -- ) |
|
tdp tempdp-save ! tempdp to tdp tdp ! ; |
|
: tempdp> ( -- ) |
|
tempdp-save @ to tdp ; |
|
|
|
: >ram fixed off (switchram) fixed on ; |
|
: >rom fixed off switchrom fixed on ; |
|
: >auto fixed off switchrom ; |
|
|
|
|
|
|
|
\ : 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] |
|
: S! ( n addr -- ) >r s>d r> tcell bounds swap 1- |
|
DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; |
|
: S@ ( addr -- n ) >r 0 0 r> tcell bounds |
|
DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ; |
|
: 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] |
|
: S! ( n addr -- ) >r s>d r> tcell bounds |
|
DO maxbyte ud/mod rot I c! LOOP 2drop ; |
|
: S@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1- |
|
DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ; |
|
: 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] |
|
|
|
: 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 EXIT THEN |
|
THEN |
|
r> drop |
|
r> |
|
REPEAT |
|
2drop 0 ; |
|
|
|
: (>regionimage) ( taddr -- 'taddr ) |
|
dup |
|
\ find region we want to address |
|
taddr>region dup 0= ABORT" Address out of range!" |
|
>r |
|
\ calculate offset in region |
|
r@ >rstart @ - |
|
\ add regions real address in our memory |
|
r> >rmem @ + ; |
|
|
|
\ 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! ; |
|
|
|
: (relon) ( taddr -- ) |
|
[ [IFDEF] fd-relocation-table ] |
|
s" +" fd-relocation-table write-file throw |
|
dup s>d <# #s #> fd-relocation-table write-line throw |
|
[ [THEN] ] |
|
bit$ @ 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] ] |
|
bit$ @ swap cell/ -bit ; |
|
|
|
: (>image) ( taddr -- absaddr ) image @ + ; |
|
|
|
DEFER >image |
|
DEFER relon |
|
DEFER reloff |
|
DEFER correcter |
|
|
|
T has? relocate H |
|
[IF] |
|
' (relon) IS relon |
|
' (reloff) IS reloff |
|
' (>image) IS >image |
|
[ELSE] |
|
' drop IS relon |
|
' drop IS reloff |
|
' (>regionimage) IS >image |
|
[THEN] |
|
|
|
\ 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 -- ) >image S! ; |
|
: c@ ( taddr -- char ) >image Sc@ ; |
|
: c! ( char taddr -- ) >image 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 ; |
|
|
|
>CROSS |
|
|
|
: tcmove ( source dest len -- ) |
|
\G cmove in target memory |
|
tchar * bounds |
|
?DO dup T c@ H I T c! H 1+ |
|
tchar +LOOP drop ; |
|
|
|
\ \ Load Assembler |
|
|
|
>TARGET |
|
H also Forth definitions |
|
|
|
: X bl word count [ ' target >wordlist ] Literal search-wordlist |
|
IF state @ IF compile, |
|
ELSE execute THEN |
|
ELSE -1 ABORT" Cross: access method not supported!" |
|
THEN ; immediate |
|
|
|
[IFDEF] asm-include asm-include [THEN] hex |
|
|
|
previous |
|
>CROSS H |
|
|
|
\ \ -------------------- Compiler Plug Ins 01aug97jaw |
|
|
|
>TARGET |
|
DEFER >body \ we need the system >body |
|
\ and the target >body |
|
>CROSS |
|
T 2 cells H VALUE xt>body |
|
DEFER doprim, \ compiles start of a primitive |
|
DEFER docol, \ compiles start of a colon definition |
|
DEFER doer, |
|
DEFER fini, \ compiles end of definition ;s |
|
DEFER doeshandler, |
|
DEFER dodoes, |
|
|
|
DEFER ]comp \ starts compilation |
|
DEFER comp[ \ ends compilation |
|
|
|
: (prim) T a, H ; ' (prim) IS prim, |
|
|
|
: (cr) >tempdp ]comp prim, comp[ tempdp> ; ' (cr) IS colon-resolve |
|
: (ar) T ! H ; ' (ar) IS addr-resolve |
|
: (dr) ( ghost res-pnt target-addr addr ) |
|
>tempdp drop over |
|
dup >magic @ <do:> = |
|
IF doer, |
|
ELSE dodoes, |
|
THEN |
|
tempdp> ; ' (dr) IS doer-resolve |
|
|
|
: (cm) ( -- addr ) |
|
T here align H |
|
-1 prim, ; ' (cm) IS colonmark, |
|
|
|
>TARGET |
|
: compile, prim, ; |
|
>CROSS |
|
|
|
: 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 14oct92py |
|
|
: resolve-loop ( ghost tcfa -- ghost tcfa ) |
: resolve-loop ( ghost resolve-list tcfa -- ) |
>r dup >link @ |
>r |
BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop 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 9may93jaw |
|
|
|
Variable TWarnings |
|
TWarnings on |
|
Variable Exists-Warnings |
|
Exists-Warnings on |
|
|
: exists ( ghost tcfa -- ) |
: exists ( ghost tcfa -- ) |
over GhostNames |
over GhostNames |
BEGIN @ dup |
BEGIN @ dup |
WHILE 2dup cell+ @ = |
WHILE 2dup cell+ @ = |
UNTIL |
UNTIL |
nip 2 cells + count cr ." CROSS: Exists: " type 4 spaces |
2 cells + count |
swap cell+ ! |
TWarnings @ Exists-Warnings @ and |
ELSE true ABORT" CROSS: Ghostnames inconsistent" |
IF warnhead type ." exists" |
|
ELSE 2drop THEN |
|
drop swap >link ! |
|
ELSE true abort" CROSS: Ghostnames inconsistent " |
THEN ; |
THEN ; |
|
|
|
: colon-resolved ( ghost -- ) |
|
>link @ colon, ; \ compile-call |
|
: prim-resolved ( ghost -- ) |
|
>link @ prim, ; |
|
|
: resolve ( ghost tcfa -- ) |
: resolve ( ghost tcfa -- ) |
over >magic @ <fwd> <> IF exists EXIT THEN |
\G resolve referencies to ghost with tcfa |
resolve-loop over >link ! <res> swap >magic ! ; |
\ is ghost resolved?, second resolve means another definition with the |
|
\ same name |
|
over undefined? 0= IF exists EXIT THEN |
|
\ get linked-list |
|
swap >r r@ >link @ swap \ ( list tcfa R: ghost ) |
|
\ mark ghost as resolved |
|
dup r@ >link ! <res> r@ >magic ! |
|
r@ >comp @ ['] is-forward = IF |
|
['] prim-resolved r@ >comp ! THEN |
|
\ loop through forward referencies |
|
r> -rot |
|
comp-state @ >r Resolving comp-state ! |
|
resolve-loop |
|
r> comp-state ! |
|
|
|
['] noop IS resolve-warning |
|
; |
|
|
\ gexecute ghost, 01nov92py |
\ gexecute ghost, 01nov92py |
|
|
: do-forward ( ghost -- ) |
: gexecute ( ghost -- ) |
>link dup @ there rot ! T A, H ; |
dup >comp @ execute ; |
: do-resolve ( ghost -- ) |
|
>link @ T A, H ; |
: addr, ( ghost -- ) |
|
dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ; |
: gexecute ( ghost -- ) dup @ |
|
<fwd> = IF do-forward ELSE do-resolve THEN ; |
\ !! : ghost, ghost gexecute ; |
: ghost, ghost gexecute ; |
|
|
|
\ .unresolved 11may93jaw |
\ .unresolved 11may93jaw |
|
|
Line 321 variable ResolveFlag
|
Line 1482 variable ResolveFlag
|
|
|
\ ?touched 11may93jaw |
\ ?touched 11may93jaw |
|
|
: ?touched ( ghost -- flag ) dup >magic @ <fwd> = swap >link @ |
: ?touched ( ghost -- flag ) dup forward? swap >link @ |
0 <> and ; |
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 ( ghostname -- ) |
: ?resolved ( ghostname -- ) |
dup cell+ @ ?touched |
dup cell+ @ ?touched |
IF cell+ cell+ count cr type ResolveFlag on ELSE drop THEN ; |
IF dup |
|
cell+ cell+ count cr type ResolveFlag on |
|
cell+ @ .forwarddefs |
|
ELSE drop |
|
THEN ; |
|
|
>MINIMAL |
|
: .unresolved ( -- ) |
: .unresolved ( -- ) |
ResolveFlag off cr ." Unresolved: " |
ResolveFlag off cr ." Unresolved: " |
Ghostnames |
Ghostnames |
BEGIN @ dup |
BEGIN @ dup |
WHILE dup ?resolved |
WHILE dup ?resolved |
REPEAT drop ResolveFlag @ 0= IF ." Nothing!" THEN cr ; |
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 |
>CROSS |
\ Header states 12dec92py |
\ Header states 12dec92py |
|
|
: flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ; |
bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+ |
|
: flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ; |
|
|
VARIABLE ^imm |
VARIABLE ^imm |
|
|
|
\ !! should be target wordsize specific |
|
$80 constant alias-mask |
|
$40 constant immediate-mask |
|
$20 constant restrict-mask |
|
|
>TARGET |
>TARGET |
: immediate 20 flag! |
: immediate immediate-mask flag! |
^imm @ @ dup <imm> = ?EXIT |
^imm @ @ dup <imm> = IF drop EXIT THEN |
<res> <> ABORT" CROSS: Cannot immediate a unresolved word" |
<res> <> ABORT" CROSS: Cannot immediate a unresolved word" |
<imm> ^imm @ ! ; |
<imm> ^imm @ ! ; |
: restrict ; |
: restrict restrict-mask flag! ; |
>CROSS |
|
|
|
\ ALIAS2 ansforth conform alias 9may93jaw |
|
|
|
: ALIAS2 create here 0 , DOES> @ execute ; |
: isdoer |
\ usage: |
\G define a forth word as doer, this makes obviously only sence on |
\ ' alias2 bla ! |
\G forth processors such as the PSC1000 |
|
<do:> last-header-ghost @ >magic ! ; |
|
>CROSS |
|
|
\ Target Header Creation 01nov92py |
\ Target Header Creation 01nov92py |
|
|
|
>TARGET |
: string, ( addr count -- ) |
: string, ( addr count -- ) |
dup T c, H bounds DO I c@ T c, H LOOP ; |
dup T c, H bounds ?DO I c@ T c, H LOOP ; |
: name, ( "name" -- ) name count string, T align H ; |
: lstring, ( addr count -- ) |
|
dup T , H bounds ?DO I c@ T c, H LOOP ; |
|
: name, ( "name" -- ) bl word count T lstring, cfalign H ; |
: view, ( -- ) ( dummy ) ; |
: view, ( -- ) ( dummy ) ; |
|
>CROSS |
|
|
VARIABLE CreateFlag CreateFlag off |
\ Target Document Creation (goes to crossdoc.fd) 05jul95py |
|
|
: (Theader ( "name" -- ghost ) T align H view, |
s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id |
tlast @ dup 0> IF T 1 cells - THEN A, H there tlast ! |
\ contains the file-id of the documentation file |
>in @ name, >in ! T here H tlastcfa ! |
|
CreateFlag @ IF |
: T-\G ( -- ) |
>in @ alias2 swap >in ! \ create alias in target |
source >in @ /string doc-file-id write-line throw |
>in @ ghost swap >in ! |
postpone \ ; |
swap also ghosts ' previous swap ! \ tick ghost and store in alias |
|
CreateFlag off |
Variable to-doc to-doc on |
ELSE ghost THEN |
|
dup >magic ^imm ! \ a pointer for immediate |
: cross-doc-entry ( -- ) |
Already @ IF dup >end tdoes ! |
to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header |
ELSE 0 tdoes ! THEN |
IF |
80 flag! ; |
s" " doc-file-id write-line throw |
|
s" make-doc " doc-file-id write-file throw |
|
|
|
tlast @ >image count 1F and 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 |
|
\ contains the file-id of the tags file |
|
|
|
Create tag-beg 2 c, 7F c, bl c, |
|
Create tag-end 2 c, bl c, 01 c, |
|
Create tag-bof 1 c, 0C 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-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 |
|
tlast @ >image count 1F and 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 ; |
|
|
|
\ 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? ( -- flag ) \ name |
|
ghost undefined? 0= ; |
|
|
|
: defined2? ( -- flag ) \ name |
|
\G return true for anything else than forward, even for <skip> |
|
\G that's what we want |
|
ghost forward? 0= ; |
|
|
|
: forced? ( -- flag ) \ name |
|
\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? ( -- flag ) \ name |
|
ghost >magic @ <do:> = ; |
|
|
|
: 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 ; |
|
|
|
: (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 ! |
|
ghost |
|
\ output symbol table to extra file |
|
[ [IFDEF] fd-symbol-table ] |
|
base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base ! |
|
s" :" fd-symbol-table write-file throw |
|
dup >ghostname fd-symbol-table write-line throw |
|
[ [THEN] ] |
|
dup Last-Header-Ghost ! |
|
dup >magic ^imm ! \ a pointer for immediate |
|
Already @ |
|
IF dup >end tdoes ! |
|
ELSE 0 tdoes ! |
|
THEN |
|
alias-mask flag! |
|
cross-doc-entry cross-tag-entry ; |
|
|
VARIABLE ;Resolve 1 cells allot |
VARIABLE ;Resolve 1 cells allot |
|
\ this is the resolver information from ":" |
|
\ resolving is done by ";" |
|
|
: Theader ( "name" -- ) (THeader there resolve 0 ;Resolve ! ; |
: Theader ( "name" -- ghost ) |
|
(THeader dup there resolve 0 ;Resolve ! ; |
|
|
>TARGET |
>TARGET |
: Alias ( cfa -- ) \ name |
: Alias ( cfa -- ) \ name |
(THeader over resolve T A, H 80 flag! ; |
>in @ skip? IF 2drop EXIT THEN >in ! |
|
dup 0< s" prims" T $has? H 0= and |
|
IF |
|
.sourcepos ." needs prim: " >in @ bl word count type >in ! cr |
|
THEN |
|
(THeader over resolve T A, H alias-mask flag! ; |
|
: Alias: ( 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 <do:> swap >magic ! ; |
|
|
|
Variable prim# |
|
: first-primitive ( n -- ) prim# ! ; |
|
: Primitive ( -- ) \ name |
|
prim# @ T Alias H -1 prim# +! ; |
>CROSS |
>CROSS |
|
|
\ Conditionals and Comments 11may93jaw |
\ Conditionals and Comments 11may93jaw |
Line 410 VARIABLE ;Resolve 1 cells allot
|
Line 1767 VARIABLE ;Resolve 1 cells allot
|
|
|
Comment ( Comment \ |
Comment ( Comment \ |
|
|
\ Predefined ghosts 12dec92py |
|
|
|
ghost 0= drop |
|
ghost branch ghost ?branch 2drop |
|
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 |
\ compile 10may93jaw |
|
|
: compile ( -- ) \ name |
: compile ( -- ) \ name |
restrict? |
restrict? |
name gfind dup 0= ABORT" CROSS: Can't compile " |
bl word gfind dup 0= ABORT" CROSS: Can't compile " |
0> ( immediate? ) |
0> ( immediate? ) |
IF >exec @ compile, |
IF >exec @ compile, |
ELSE postpone literal postpone gexecute THEN ; |
ELSE postpone literal postpone gexecute THEN ; |
immediate |
immediate |
|
|
|
: (cc) compile call T >body a, H ; ' (cc) IS colon, |
|
|
|
: [G'] |
|
\G ticks a ghost and returns its address |
|
bl word gfind 0= ABORT" CROSS: Ghost don't exists" |
|
state @ |
|
IF postpone literal |
|
THEN ; immediate |
|
|
|
: ghost>cfa |
|
dup undefined? ABORT" CROSS: forward " >link @ ; |
|
|
>TARGET |
>TARGET |
: ' ( -- cfa ) name gfind 0= ABORT" CROSS: undefined " |
|
dup >magic @ <fwd> = ABORT" CROSS: forward " >link @ ; |
|
|
|
Cond: ['] compile lit ghost gexecute ;Cond |
: ' ( -- cfa ) |
|
\ returns the target-cfa of a ghost |
|
bl word gfind 0= ABORT" CROSS: Ghost don't exists" |
|
ghost>cfa ; |
|
|
|
Cond: ['] T ' H alit, ;Cond |
|
|
>CROSS |
>CROSS |
\ tLiteral 12dec92py |
|
|
|
: lit, ( n -- ) compile lit T , H ; |
: [T'] |
: alit, ( n -- ) compile lit T A, H ; |
\ returns the target-cfa of a ghost, or compiles it as literal |
|
postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate |
|
|
|
\ \ threading modell 13dec92py |
|
\ modularized 14jun97jaw |
|
|
|
: fillcfa ( usedcells -- ) |
|
T cells H xt>body swap - 0 ?DO 0 X c, tchar +LOOP ; |
|
|
|
: (>body) ( cfa -- pfa ) xt>body + ; ' (>body) T IS >body H |
|
|
|
: (doer,) ( ghost -- ) ]comp addr, comp[ 1 fillcfa ; ' (doer,) IS doer, |
|
|
|
: (docol,) ( -- ) [G'] :docol doer, ; ' (docol,) IS docol, |
|
|
|
: (doprim,) ( -- ) |
|
there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) IS doprim, |
|
|
|
: (doeshandler,) ( -- ) |
|
T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) IS doeshandler, |
|
|
|
: (dodoes,) ( does-action-ghost -- ) |
|
]comp [G'] :dodoes gexecute comp[ |
|
addr, |
|
T here H tcell - reloff 2 fillcfa ; ' (dodoes,) IS dodoes, |
|
|
|
: (lit,) ( n -- ) compile lit T , H ; ' (lit,) IS 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,) IS alit, |
|
[ELSE] |
|
: (alit,) ( n -- ) lit, ; ' (alit,) IS alit, |
|
[THEN] |
|
|
|
: (fini,) compile ;s ; ' (fini,) IS fini, |
|
|
|
[IFUNDEF] (code) |
|
Defer (code) |
|
Defer (end-code) |
|
[THEN] |
|
|
>TARGET |
>TARGET |
|
: Code |
|
defempty? |
|
(THeader there resolve |
|
[ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF] |
|
doprim, |
|
[THEN] |
|
depth (code) ; |
|
|
|
: Code: |
|
defempty? |
|
ghost dup there ca>native resolve <do:> swap >magic ! |
|
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 -- ) restrict? lit, ;Cond |
Cond: Literal ( n -- ) restrict? lit, ;Cond |
Cond: ALiteral ( n -- ) restrict? alit, ;Cond |
Cond: ALiteral ( n -- ) restrict? alit, ;Cond |
|
|
: Char ( "<char>" -- ) bl word char+ c@ ; |
: Char ( "<char>" -- ) bl word char+ c@ ; |
Cond: [Char] ( "<char>" -- ) restrict? Char lit, ;Cond |
Cond: [Char] ( "<char>" -- ) restrict? Char lit, ;Cond |
|
|
|
\ some special literals 27jan97jaw |
|
|
|
\ !! Known Bug: Special Literals and plug-ins work only correct |
|
\ on targets with char = 8 bit |
|
|
|
Cond: MAXU |
|
restrict? |
|
compile lit tcell 0 ?DO FF T c, H LOOP |
|
;Cond |
|
|
|
Cond: MINI |
|
restrict? |
|
compile lit bigendian |
|
IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP |
|
ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H |
|
THEN |
|
;Cond |
|
|
|
Cond: MAXI |
|
restrict? |
|
compile lit bigendian |
|
IF 7F T c, H tcell 1 ?DO FF T c, H LOOP |
|
ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H |
|
THEN |
|
;Cond |
|
|
>CROSS |
>CROSS |
\ Target compiling loop 12dec92py |
\ Target compiling loop 12dec92py |
\ ">tib trick thrown out 10may93jaw |
\ ">tib trick thrown out 10may93jaw |
\ number? defined at the top 11may93jaw |
\ number? defined at the top 11may93jaw |
|
\ replaced >in by save-input |
|
|
|
: discard 0 ?DO drop LOOP ; |
|
|
\ compiled word might leave items on stack! |
\ compiled word might leave items on stack! |
: tcom ( in name -- ) |
: tcom ( x1 .. xn n name -- ) |
gfind ?dup IF 0> IF nip >exec @ execute |
\ dup count type space |
ELSE nip gexecute THEN EXIT THEN |
gfind ?dup |
number? dup IF 0> IF swap lit, THEN lit, drop |
IF >r >r discard r> r> |
ELSE 2drop >in ! |
0> IF >exec @ execute |
ghost gexecute THEN ; |
ELSE gexecute THEN |
|
EXIT |
|
THEN |
|
number? dup |
|
IF 0> IF swap lit, THEN lit, discard |
|
ELSE 2drop restore-input throw ghost gexecute THEN ; |
|
|
>TARGET |
>TARGET |
\ : ; DOES> 13dec92py |
\ : ; DOES> 13dec92py |
\ ] 9may93py/jaw |
\ ] 9may93py/jaw |
|
|
: ] state on |
: ] state on |
|
Compiling comp-state ! |
BEGIN |
BEGIN |
BEGIN >in @ name |
BEGIN save-input bl word |
dup c@ 0= WHILE 2drop refill 0= |
dup c@ 0= WHILE drop discard refill 0= |
ABORT" CROSS: End of file while target compiling" |
ABORT" CROSS: End of file while target compiling" |
REPEAT |
REPEAT |
tcom |
tcom |
Line 484 Cond: [Char] ( "<char>" -- ) restrict
|
Line 1946 Cond: [Char] ( "<char>" -- ) restrict
|
\ is not allowed if a system should be ans conform |
\ is not allowed if a system should be ans conform |
|
|
: : ( -- colon-sys ) \ Name |
: : ( -- 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 ;Resolve ! there ;Resolve cell+ ! |
(THeader ;Resolve ! there ;Resolve cell+ ! |
docol, depth T ] H ; |
docol, ]comp depth T ] H ; |
|
|
|
: :noname ( -- colon-sys ) |
|
T cfalign H there docol, 0 ;Resolve ! depth T ] H ; |
|
|
Cond: EXIT ( -- ) restrict? compile ;S ;Cond |
Cond: EXIT ( -- ) restrict? compile ;S ;Cond |
|
|
Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;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-Ghost @ gexecute ;Cond |
|
|
Cond: ; ( -- ) restrict? |
Cond: ; ( -- ) restrict? |
depth ?dup IF 1- <> ABORT" CROSS: Stack changed" |
depth ?dup IF 1- <> ABORT" CROSS: Stack changed" |
ELSE true ABORT" CROSS: Stack empty" THEN |
ELSE true ABORT" CROSS: Stack empty" THEN |
compile ;S state off |
fini, |
|
comp[ |
|
state off |
;Resolve @ |
;Resolve @ |
IF ;Resolve @ ;Resolve cell+ @ resolve THEN |
IF ;Resolve @ ;Resolve cell+ @ resolve |
|
['] colon-resolved ;Resolve @ >comp ! THEN |
|
Interpreting comp-state ! |
;Cond |
;Cond |
Cond: [ restrict? state off ;Cond |
Cond: [ restrict? state off Interpreting comp-state ! ;Cond |
|
|
>CROSS |
>CROSS |
: !does :dodoes tlastcfa @ tuck T ! cell+ ! H ; |
|
|
Create GhostDummy ghostheader |
|
<res> GhostDummy >magic ! |
|
|
|
: !does ( does-action -- ) |
|
\ !! zusammenziehen und dodoes, machen! |
|
tlastcfa @ [G'] :dovar killref |
|
\ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ; |
|
\ !! geht so nicht, da dodoes, ghost will! |
|
GhostDummy >link ! GhostDummy |
|
tlastcfa @ >tempdp dodoes, tempdp> ; |
|
|
|
: g>body ( ghost -- body ) |
|
>link @ T >body H ; |
|
: does-resolved ( ghost -- ) |
|
dup g>body alit, >end @ g>body colon, ; |
|
|
>TARGET |
>TARGET |
Cond: DOES> restrict? |
Cond: DOES> restrict? |
compile (;code) dodoes, tdoes @ ?dup IF @ T here H resolve THEN |
compile (does>) doeshandler, |
|
\ resolve words made by builders |
|
tdoes @ ?dup IF @ dup T here H resolve |
|
['] prim-resolved swap >comp ! THEN |
;Cond |
;Cond |
: DOES> dodoes, T here H !does depth T ] H ; |
: DOES> switchrom doeshandler, T here H !does depth T ] H ; |
|
|
>CROSS |
>CROSS |
\ Creation 01nov92py |
\ Creation 01nov92py |
|
|
\ Builder 11may93jaw |
\ Builder 11may93jaw |
|
|
: Builder ( Create do: "name" -- ) |
: Builder ( Create-xt do-ghost "name" -- ) |
>in @ alias2 swap dup >in ! >r >r |
\ builds up a builder in current vocabulary |
Make-Ghost rot swap >exec ! , |
\ create-xt is executed when word is interpreted |
r> r> >in ! |
\ do:-xt is executet when the created word from builder is executed |
also ghosts ' previous swap ! |
\ for do:-xt an additional entry after the normal ghost-enrys is used |
DOES> dup >exec @ execute ; |
|
|
Make-Ghost ( Create-xt do-ghost ghost ) |
: gdoes, ( ghost -- ) >end @ dup >magic @ <fwd> <> |
rot swap ( do-ghost Create-xt ghost ) |
IF dup >link @ dup 0< IF T A, 0 , H drop EXIT THEN drop THEN |
>exec ! , ; |
:dodoes T A, H gexecute T here H cell - reloff ; |
|
|
: gdoes, ( ghost -- ) |
: TCreate ( ghost -- ) |
\ makes the codefield for a word that is built |
CreateFlag on |
>end @ dup undefined? 0= |
Theader dup gdoes, |
IF |
>end @ >exec @ execute ; |
dup >magic @ <do:> = |
|
IF doer, |
|
ELSE dodoes, |
|
THEN |
|
EXIT |
|
THEN |
|
\ compile :dodoes gexecute |
|
\ T here H tcell - reloff |
|
2 refered |
|
0 fillcfa |
|
; |
|
|
|
: TCreate ( <name> -- ) |
|
executed-ghost @ |
|
create-forward-warn |
|
IF ['] reswarn-forward IS resolve-warning THEN |
|
Theader >r dup gdoes, |
|
\ stores execution semantic in the built word |
|
\ if the word already has a semantic (concerns S", IS, .", DOES>) |
|
\ then keep it |
|
>end @ |
|
dup >exec @ r@ >exec dup @ ['] NoExec = IF ! ELSE 2drop THEN |
|
>comp @ r> >comp ! ; |
|
|
|
: RTCreate ( <name> -- ) |
|
\ creates a new word with code-field in ram |
|
executed-ghost @ |
|
create-forward-warn |
|
IF ['] reswarn-forward IS resolve-warning THEN |
|
\ make Alias |
|
(THeader there 0 T a, H alias-mask flag! ( S executed-ghost new-ghost ) |
|
\ store poiter to code-field |
|
switchram T cfalign H |
|
there swap T ! H |
|
there tlastcfa ! |
|
dup there resolve 0 ;Resolve ! |
|
>r dup gdoes, |
|
\ stores execution semantic in the built word |
|
\ if the word already has a semantic (concerns S", IS, .", DOES>) |
|
\ then keep it |
|
>end @ >exec @ r> >exec dup @ ['] NoExec = |
|
IF ! ELSE 2drop THEN ; |
|
|
: Build: ( -- [xt] [colon-sys] ) |
: Build: ( -- [xt] [colon-sys] ) |
:noname postpone TCreate ; |
:noname postpone TCreate ; |
|
|
|
: BuildSmart: ( -- [xt] [colon-sys] ) |
|
:noname |
|
[ T has? rom H [IF] ] |
|
postpone RTCreate |
|
[ [ELSE] ] |
|
postpone TCreate |
|
[ [THEN] ] ; |
|
|
: gdoes> ( ghost -- addr flag ) |
: gdoes> ( ghost -- addr flag ) |
|
executed-ghost @ |
state @ IF gexecute true EXIT THEN |
state @ IF gexecute true EXIT THEN |
cell+ @ T >body H false ; |
g>body false ; |
|
|
\ DO: ;DO 11may93jaw |
\ DO: ;DO 11may93jaw |
\ changed to ?EXIT 10may93jaw |
\ changed to ?EXIT 10may93jaw |
|
|
: (does>) postpone does> ; immediate \ second level does> |
: DO: ( -- ghost [xt] [colon-sys] ) |
|
|
: DO: ( -- addr [xt] [colon-sys] ) |
|
here ghostheader |
here ghostheader |
:noname |
:noname postpone gdoes> postpone ?EXIT ; |
postpone (does>) postpone gdoes> postpone ?EXIT ; |
|
|
|
: ;DO ( addr [xt] [colon-sys] -- ) |
: by: ( -- ghost [xt] [colon-sys] ) \ name |
|
ghost |
|
:noname postpone gdoes> postpone ?EXIT ; |
|
|
|
: ;DO ( ghost [xt] [colon-sys] -- ghost ) |
postpone ; ( S addr xt ) |
postpone ; ( S addr xt ) |
over >exec ! ; immediate |
over >exec ! ; immediate |
|
|
: by ( -- addr ) \ Name |
: compile: ( ghost -- ghost [xt] [colon-sys] ) |
|
:noname postpone g>body ; |
|
: ;compile ( ghost [xt] [colon-sys] -- ghost ) |
|
postpone ; over >comp ! ; immediate |
|
|
|
: by ( -- ghost ) \ Name |
ghost >end @ ; |
ghost >end @ ; |
|
|
>TARGET |
>TARGET |
\ Variables and Constants 05dec92py |
\ Variables and Constants 05dec92py |
|
|
Build: ; |
Build: ( n -- ) ; |
DO: ( ghost -- addr ) ;DO |
by: :docon ( ghost -- n ) T @ H ;DO |
|
compile: alit, compile @ ;compile |
|
Builder (Constant) |
|
|
|
Build: ( n -- ) T , H ; |
|
by (Constant) |
|
Builder Constant |
|
|
|
Build: ( n -- ) T A, H ; |
|
by (Constant) |
|
Builder AConstant |
|
|
|
Build: ( d -- ) T , , H ; |
|
DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO |
|
Builder 2Constant |
|
|
|
BuildSmart: ; |
|
by: :dovar ( ghost -- addr ) ;DO |
|
\ compile: alit, ;compile |
Builder Create |
Builder Create |
by Create :dovar resolve |
|
|
|
|
T has? rom H [IF] |
|
Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ; |
|
by (Constant) |
|
Builder Variable |
|
[ELSE] |
Build: T 0 , H ; |
Build: T 0 , H ; |
by Create |
by Create |
Builder Variable |
Builder Variable |
|
[THEN] |
|
|
|
T has? rom H [IF] |
|
Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , 0 , H ( switchrom ) ; |
|
by (Constant) |
|
Builder 2Variable |
|
[ELSE] |
|
Build: T 0 , 0 , H ; |
|
by Create |
|
Builder 2Variable |
|
[THEN] |
|
|
|
T has? rom H [IF] |
|
Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ; |
|
by (Constant) |
|
Builder AVariable |
|
[ELSE] |
Build: T 0 A, H ; |
Build: T 0 A, H ; |
by Create |
by Create |
Builder AVariable |
Builder AVariable |
|
[THEN] |
|
|
\ User variables 04may94py |
\ User variables 04may94py |
|
|
>CROSS |
>CROSS |
|
|
Variable tup 0 tup ! |
Variable tup 0 tup ! |
Variable tudp 0 tudp ! |
Variable tudp 0 tudp ! |
|
|
: u, ( n -- udp ) |
: u, ( n -- udp ) |
tup @ tudp @ + T ! H |
tup @ tudp @ + T ! H |
tudp @ dup cell+ tudp ! ; |
tudp @ dup T cell+ H tudp ! ; |
|
|
: au, ( n -- udp ) |
: au, ( n -- udp ) |
tup @ tudp @ + T A! H |
tup @ tudp @ + T A! H |
tudp @ dup cell+ tudp ! ; |
tudp @ dup T cell+ H tudp ! ; |
|
|
>TARGET |
>TARGET |
|
|
Build: T 0 u, , H ; |
Build: 0 u, X , ; |
DO: ( ghost -- up-addr ) T @ H tup @ + ;DO |
by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO |
|
compile: compile useraddr T @ , H ;compile |
Builder User |
Builder User |
by User :douser resolve |
|
|
|
Build: T 0 u, , 0 u, drop H ; |
Build: 0 u, X , 0 u, drop ; |
by User |
by User |
Builder 2User |
Builder 2User |
|
|
Build: T 0 au, , H ; |
Build: 0 au, X , ; |
by User |
by User |
Builder AUser |
Builder AUser |
|
|
Build: ( n -- ) T , H ; |
BuildSmart: T , H ; |
DO: ( ghost -- n ) T @ H ;DO |
by (Constant) |
Builder Constant |
|
by Constant :docon resolve |
|
|
|
Build: ( n -- ) T A, H ; |
|
by Constant |
|
Builder AConstant |
|
|
|
Build: T 0 , H ; |
|
by Constant |
|
Builder Value |
Builder Value |
|
|
Build: ( -- ) compile noop ; |
BuildSmart: T A, H ; |
DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO |
by (Constant) |
|
Builder AValue |
|
|
|
BuildSmart: ( -- ) [T'] noop T A, H ; |
|
by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO |
|
compile: alit, compile @ compile execute ;compile |
Builder Defer |
Builder Defer |
|
|
|
Build: ( inter comp -- ) swap T immediate A, A, H ; |
|
DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO |
|
Builder interpret/compile: |
|
|
|
\ Sturctures 23feb95py |
|
|
|
>CROSS |
|
: nalign ( addr1 n -- addr2 ) |
|
\ addr2 is the aligned version of addr1 wrt the alignment size n |
|
1- tuck + swap invert and ; |
|
>TARGET |
|
|
|
Build: ; |
|
by: :dofield T @ H + ;DO |
|
compile: T @ H lit, compile + ;compile |
|
Builder (Field) |
|
|
|
Build: ( align1 offset1 align size "name" -- align2 offset2 ) |
|
rot dup T , H ( align1 align size offset1 ) |
|
+ >r nalign r> ; |
|
by (Field) |
|
Builder Field |
|
|
|
: struct T 1 chars 0 H ; |
|
: end-struct T 2Constant H ; |
|
|
|
: cell% ( n -- size align ) |
|
T 1 cells H dup ; |
|
|
|
Build: ( m v -- m' v ) dup T , cell+ H ; |
|
DO: abort" Not in cross mode" ;DO |
|
Builder input-method |
|
|
|
Build: ( m v size -- m v' ) over T , H + ; |
|
DO: abort" Not in cross mode" ;DO |
|
Builder input-var |
|
|
\ structural conditionals 17dec92py |
\ structural conditionals 17dec92py |
|
|
>CROSS |
>CROSS |
: ?struc ( flag -- ) ABORT" CROSS: unstructured " ; |
: ?struc ( flag -- ) ABORT" CROSS: unstructured " ; |
: sys? ( sys -- sys ) dup 0= ?struc ; |
: sys? ( sys -- sys ) dup 0= ?struc ; |
: >mark ( -- sys ) T here 0 , H ; |
: >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ; |
: >resolve ( sys -- ) T here over - swap ! H ; |
|
: <resolve ( sys -- ) T here - , H ; |
: branchoffset ( src dest -- ) - tchar / ; \ ?? jaw |
|
|
|
: >resolve ( sys -- ) |
|
X here ( dup ." >" hex. ) over branchoffset swap X ! ; |
|
|
|
: <resolve ( sys -- ) |
|
X here ( dup ." <" hex. ) branchoffset X , ; |
|
|
|
:noname compile branch X here branchoffset X , ; |
|
IS branch, ( target-addr -- ) |
|
:noname compile ?branch X here branchoffset X , ; |
|
IS ?branch, ( target-addr -- ) |
|
:noname compile branch T here 0 , H ; |
|
IS branchmark, ( -- branchtoken ) |
|
:noname compile ?branch T here 0 , H ; |
|
IS ?branchmark, ( -- branchtoken ) |
|
:noname T here 0 , H ; |
|
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 |
>TARGET |
|
|
\ Structural Conditionals 12dec92py |
\ Structural Conditionals 12dec92py |
Line 629 Cond: BUT restrict? sys? swap ;Con
|
Line 2282 Cond: BUT restrict? sys? swap ;Con
|
Cond: YET restrict? sys? dup ;Cond |
Cond: YET restrict? sys? dup ;Cond |
|
|
>CROSS |
>CROSS |
Variable tleavings |
|
|
Variable tleavings 0 tleavings ! |
|
|
|
: (done) ( addr -- ) |
|
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 |
>TARGET |
|
|
Cond: DONE ( addr -- ) restrict? tleavings @ |
Cond: DONE ( addr -- ) restrict? (done) ;Cond |
BEGIN 2dup u> 0= WHILE dup T @ H swap >resolve REPEAT |
|
tleavings ! drop ;Cond |
|
|
|
>CROSS |
>CROSS |
: (leave T here H tleavings @ T , H tleavings ! ; |
: (leave) ( branchtoken -- ) |
|
3 cells allocate throw >r |
|
T here H r@ cell+ ! |
|
r@ 2 cells + ! |
|
tleavings @ r@ ! |
|
r> tleavings ! ; |
>TARGET |
>TARGET |
|
|
Cond: LEAVE restrict? compile branch (leave ;Cond |
Cond: LEAVE restrict? branchmark, (leave) ;Cond |
Cond: ?LEAVE restrict? compile 0= compile ?branch (leave ;Cond |
Cond: ?LEAVE restrict? compile 0= ?branchmark, (leave) ;Cond |
|
|
|
>CROSS |
|
\ !!JW ToDo : Move to general tools section |
|
|
|
: to1 ( x1 x2 xn n -- addr ) |
|
\G packs n stack elements in a 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] branchto, dup <resolve tcell - (done) ; |
|
|
|
: skiploop] ?dup IF branchto, branchtoresolve, THEN ; |
|
|
|
>TARGET |
|
|
\ Structural Conditionals 12dec92py |
\ Structural Conditionals 12dec92py |
|
|
Cond: AHEAD restrict? compile branch >mark ;Cond |
>TARGET |
Cond: IF restrict? compile ?branch >mark ;Cond |
Cond: AHEAD restrict? branchmark, ;Cond |
Cond: THEN restrict? sys? dup T @ H ?struc >resolve ;Cond |
Cond: IF restrict? ?branchmark, ;Cond |
|
Cond: THEN restrict? sys? branchto, branchtoresolve, ;Cond |
Cond: ELSE restrict? sys? compile AHEAD swap compile THEN ;Cond |
Cond: ELSE restrict? sys? compile AHEAD swap compile THEN ;Cond |
|
|
Cond: BEGIN restrict? T here H ;Cond |
Cond: BEGIN restrict? branchtomark, ;Cond |
Cond: WHILE restrict? sys? compile IF swap ;Cond |
Cond: WHILE restrict? sys? compile IF swap ;Cond |
Cond: AGAIN restrict? sys? compile branch <resolve ;Cond |
Cond: AGAIN restrict? sys? branch, ;Cond |
Cond: UNTIL restrict? sys? compile ?branch <resolve ;Cond |
Cond: UNTIL restrict? sys? ?branch, ;Cond |
Cond: REPEAT restrict? over 0= ?struc compile AGAIN compile THEN ;Cond |
Cond: REPEAT restrict? over 0= ?struc compile AGAIN compile THEN ;Cond |
|
|
\ Structural Conditionals 12dec92py |
Cond: CASE restrict? 0 ;Cond |
|
Cond: OF restrict? 1+ >r compile over compile = |
Cond: DO restrict? compile (do) T here H ;Cond |
compile IF compile drop r> ;Cond |
Cond: ?DO restrict? compile (?do) (leave T here H ;Cond |
Cond: ENDOF restrict? >r compile ELSE r> ;Cond |
Cond: FOR restrict? compile (for) T here H ;Cond |
Cond: ENDCASE restrict? compile drop 0 ?DO compile THEN LOOP ;Cond |
|
|
>CROSS |
\ Structural Conditionals 12dec92py |
: loop] dup <resolve cell - compile DONE compile unloop ; |
|
>TARGET |
|
|
|
Cond: LOOP restrict? sys? compile (loop) loop] ;Cond |
:noname \ ?? i think 0 is too much! jaw |
Cond: +LOOP restrict? sys? compile (+loop) loop] ;Cond |
0 compile (do) |
Cond: NEXT restrict? sys? compile (next) loop] ;Cond |
branchtomark, 2 to1 ; |
|
IS do, ( -- target-addr ) |
|
|
|
\ :noname |
|
\ compile 2dup compile = compile IF |
|
\ compile 2drop compile ELSE |
|
\ compile (do) branchtomark, 2 to1 ; |
|
\ IS ?do, |
|
|
|
:noname |
|
0 compile (?do) ?domark, (leave) |
|
branchtomark, 2 to1 ; |
|
IS ?do, ( -- target-addr ) |
|
:noname compile (for) branchtomark, ; |
|
IS for, ( -- target-addr ) |
|
:noname 1to compile (loop) loop] compile unloop skiploop] ; |
|
IS loop, ( target-addr -- ) |
|
:noname 1to compile (+loop) loop] compile unloop skiploop] ; |
|
IS +loop, ( target-addr -- ) |
|
:noname compile (next) loop] compile unloop ; |
|
IS next, ( target-addr -- ) |
|
|
|
Cond: DO restrict? do, ;Cond |
|
Cond: ?DO restrict? ?do, ;Cond |
|
Cond: FOR restrict? for, ;Cond |
|
|
|
Cond: LOOP restrict? sys? loop, ;Cond |
|
Cond: +LOOP restrict? sys? +loop, ;Cond |
|
Cond: NEXT restrict? sys? next, ;Cond |
|
|
\ String words 23feb93py |
\ String words 23feb93py |
|
|
: ," [char] " parse string, T align H ; |
: ," [char] " parse T string, align H ; |
|
|
Cond: ." restrict? compile (.") T ," H ;Cond |
Cond: ." restrict? compile (.") T ," H ;Cond ( " ) |
Cond: S" restrict? compile (S") T ," H ;Cond |
Cond: S" restrict? compile (S") T ," H ;Cond ( " ) |
Cond: ABORT" restrict? compile (ABORT") T ," H ;Cond |
Cond: ABORT" restrict? compile (ABORT") T ," H ;Cond ( " ) |
|
|
Cond: IS T ' >body H compile ALiteral compile ! ;Cond |
Cond: IS T ' >body H compile ALiteral compile ! ;Cond |
: IS T ' >body ! H ; |
: 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 |
|
: on T -1 swap ! H ; |
|
: off T 0 swap ! H ; |
|
|
\ LINKED ERR" ENV" 2ENV" 18may93jaw |
\ LINKED ERR" ENV" 2ENV" 18may93jaw |
|
|
\ linked list primitive |
\ linked list primitive |
: linked T here over @ A, swap ! H ; |
: linked X here over X @ X A, swap X ! ; |
|
: chained T linked A, H ; |
|
|
: err" s" ErrLink linked" evaluate T , H |
: err" s" ErrLink linked" evaluate T , H |
[char] " parse string, T align H ; |
[char] " parse T string, align H ; |
|
|
: env" [char] " parse s" EnvLink linked" evaluate |
: env" [char] " parse s" EnvLink linked" evaluate |
string, T align , H ; |
T string, align , H ; |
|
|
: 2env" [char] " parse s" EnvLink linked" evaluate |
: 2env" [char] " parse s" EnvLink linked" evaluate |
here >r string, T align , , H |
here >r T string, align , , H |
r> dup T c@ H 80 and swap T c! H ; |
r> dup T c@ H 80 and swap T c! H ; |
|
|
\ compile must be last 22feb93py |
\ compile must be last 22feb93py |
|
|
Cond: compile ( -- ) restrict? \ name |
Cond: compile ( -- ) restrict? \ name |
name gfind dup 0= ABORT" CROSS: Can't compile" |
bl word gfind dup 0= ABORT" CROSS: Can't compile" |
0> IF gexecute |
0> IF gexecute |
ELSE dup >magic @ <imm> = |
ELSE dup >magic @ <imm> = |
IF gexecute |
IF gexecute |
ELSE compile (compile) gexecute THEN THEN ;Cond |
ELSE compile (compile) addr, THEN THEN ;Cond |
|
|
Cond: postpone ( -- ) restrict? \ name |
Cond: postpone ( -- ) restrict? \ name |
name gfind dup 0= ABORT" CROSS: Can't compile" |
bl word gfind dup 0= ABORT" CROSS: Can't compile" |
0> IF gexecute |
0> IF gexecute |
ELSE dup >magic @ <imm> = |
ELSE dup >magic @ <imm> = |
IF gexecute |
IF gexecute |
ELSE compile (compile) gexecute THEN THEN ;Cond |
ELSE compile (compile) addr, THEN THEN ;Cond |
|
|
|
\ save-cross 17mar93py |
|
|
|
hex |
|
|
|
>CROSS |
|
Create magic s" Gforth2x" 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" -- ) |
|
bl parse ." Saving to " 2dup type cr |
|
w/o bin create-file throw >r |
|
TNIL 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 |
|
image @ there |
|
r@ write-file throw \ write image |
|
TNIL IF |
|
bit$ @ 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 ; |
|
|
|
\ \ minimal definitions |
|
|
|
>MINIMAL also minimal |
|
|
>MINIMAL |
|
also minimal |
|
\ Usefull words 13feb93py |
\ Usefull words 13feb93py |
|
|
: KB 400 * ; |
: KB 400 * ; |
|
|
|
\ \ [IF] [ELSE] [THEN] ... 14sep97jaw |
|
|
|
\ it is useful to define our own structures and not to rely |
|
\ on the words in the compiler |
|
\ The words in the compiler 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]" compare 0= >r |
|
2dup s" [IFUNDEF]" compare 0= >r |
|
2dup s" [IFDEF]" compare 0= r> or r> or |
|
IF 2drop 1+ |
|
ELSE 2dup s" [ELSE]" compare 0= |
|
IF 2drop 1- dup |
|
IF 1+ |
|
THEN |
|
ELSE |
|
2dup s" [ENDIF]" compare 0= >r |
|
s" [THEN]" compare 0= r> or |
|
IF 1- THEN |
|
THEN |
|
THEN |
|
?dup 0= ?EXIT |
|
REPEAT |
|
2drop refill 0= |
|
UNTIL drop ; immediate |
|
|
|
: [THEN] ( -- ) ; immediate |
|
|
|
: [ENDIF] ( -- ) ; immediate |
|
|
|
: [IF] ( flag -- ) |
|
0= IF postpone [ELSE] THEN ; immediate |
|
|
|
Cond: [IF] postpone [IF] ;Cond |
|
Cond: [THEN] postpone [THEN] ;Cond |
|
Cond: [ELSE] postpone [ELSE] ;Cond |
|
|
\ define new [IFDEF] and [IFUNDEF] 20may93jaw |
\ define new [IFDEF] and [IFUNDEF] 20may93jaw |
|
|
: there? name gfind IF >magic @ <fwd> <> ELSE drop false THEN ; |
: defined? tdefined? ; |
|
: needed? needed? ; |
|
: doer? doer? ; |
|
|
|
\ we want to use IFDEF on compiler directives (e.g. E?) in the source, too |
|
|
|
: directive? |
|
bl word count [ ' target >wordlist ] literal search-wordlist |
|
dup IF nip THEN ; |
|
|
|
: [IFDEF] >in @ directive? swap >in ! |
|
0= IF tdefined? ELSE name 2drop true THEN |
|
postpone [IF] ; |
|
|
: [IFDEF] there? postpone [IF] ; |
: [IFUNDEF] tdefined? 0= postpone [IF] ; |
: [IFUNDEF] there? 0= postpone [IF] ; |
|
|
Cond: [IFDEF] postpone [IFDEF] ;Cond |
|
|
|
Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond |
|
|
\ C: \- \+ Conditional Compiling 09jun93jaw |
\ C: \- \+ Conditional Compiling 09jun93jaw |
|
|
: C: >in @ there? 0= |
: C: >in @ tdefined? 0= |
IF >in ! T : H |
IF >in ! X : |
ELSE drop |
ELSE drop |
BEGIN bl word dup c@ |
BEGIN bl word dup c@ |
IF count comment? s" ;" compare 0= ?EXIT |
IF count comment? s" ;" compare 0= ?EXIT |
Line 737 also minimal
|
Line 2574 also minimal
|
AGAIN |
AGAIN |
THEN ; |
THEN ; |
|
|
also minimal |
: d? d? ; |
|
|
: \- there? IF postpone \ THEN ; |
\G doesn't skip line when debug switch is on |
: \+ there? 0= IF postpone \ THEN ; |
: \D D? 0= IF postpone \ THEN ; |
|
|
: [IF] postpone [IF] ; |
\G interprets the line if word is not defined |
: [THEN] postpone [THEN] ; |
: \- tdefined? IF 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 |
\G interprets the line if word is defined |
|
: \+ tdefined? 0= IF postpone \ THEN ; |
|
|
\ i'm not interested in bigforth features this time 10may93jaw |
Cond: \- \- ;Cond |
\ [IFDEF] file |
Cond: \+ \+ ;Cond |
\ also file |
Cond: \D \D ;Cond |
\ [THEN] |
|
\ included throw after create-file 11may93jaw |
|
|
|
endian Constant endian |
: ?? bl word find IF execute ELSE drop 0 THEN ; |
|
|
: save-cross ( "name" -- ) |
: needed: |
bl parse ." Saving to " 2dup type |
\G defines ghost for words that we want to be compiled |
w/o bin create-file throw >r |
BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ; |
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 |
\ words that should be in minimal |
|
|
: + + ; : 1- 1- ; |
create s-buffer 50 chars allot |
: - - ; : 2* 2* ; |
|
: dup dup ; : over over ; |
|
: swap swap ; : rot rot ; |
|
|
|
\ include bug5.fs |
bigendian Constant bigendian |
\ only forth also minimal definitions |
|
|
|
: \ postpone \ ; |
: here there ; |
: ( postpone ( ; |
: equ constant ; |
|
: mark there constant ; |
|
|
|
\ compiler directives |
|
: >ram >ram ; |
|
: >rom >rom ; |
|
: >auto >auto ; |
|
: >tempdp >tempdp ; |
|
: tempdp> tempdp> ; |
|
: const constflag on ; |
|
: warnings name 3 = 0= twarnings ! drop ; |
|
: | ; |
|
\ : | NoHeaderFlag on ; \ This is broken (damages the last word) |
|
|
|
: save-cross save-cross ; |
|
: save-region save-region ; |
|
: tdump swap >image swap dump ; |
|
|
|
also forth |
|
[IFDEF] Label : Label defempty? Label ; [THEN] |
|
[IFDEF] start-macros : start-macros defempty? start-macros ; [THEN] |
|
\ [IFDEF] builttag : builttag builttag ; [THEN] |
|
previous |
|
|
|
: s" [char] " parse s-buffer place s-buffer count ; \ for environment? |
|
: + + ; |
|
: 1+ 1 + ; |
|
: 2+ 2 + ; |
|
: 1- 1- ; |
|
: - - ; |
|
: and and ; |
|
: or or ; |
|
: 2* 2* ; |
|
: * * ; |
|
: / / ; |
|
: dup dup ; |
|
: over over ; |
|
: swap swap ; |
|
: rot rot ; |
|
: drop drop ; |
|
: = = ; |
|
: 0= 0= ; |
|
: lshift lshift ; |
|
: 2/ 2/ ; |
|
: . . ; |
|
|
|
: all-words ['] forced? IS skip? ; |
|
: needed-words ['] needed? IS skip? ; |
|
: undef-words ['] defined2? IS skip? ; |
|
: skipdef skipdef ; |
|
|
|
: \ postpone \ ; immediate |
|
: \G T-\G ; immediate |
|
: ( postpone ( ; immediate |
: include bl word count included ; |
: include bl word count included ; |
|
: require require ; |
: .( [char] ) parse type ; |
: .( [char] ) parse type ; |
|
: ." [char] " parse type ; |
: cr cr ; |
: cr cr ; |
|
|
: times 0 ?DO dup T c, H LOOP drop ; \ used for space table creation |
: times 0 ?DO dup X c, LOOP drop ; \ used for space table creation |
only forth also minimal definitions |
|
|
\ only forth also cross also minimal definitions order |
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\ cross-compiler words |
\ cross-compiler words |
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: decimal decimal ; |
: decimal decimal ; |
: hex hex ; |
: hex hex ; |
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: tudp T tudp H ; |
\ : tudp X tudp ; |
: tup T tup H ; minimal |
\ : tup X tup ; |
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: doc-off false to-doc ! ; |
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: doc-on true to-doc ! ; |
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[IFDEF] dbg : dbg dbg ; [THEN] |
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\ for debugging... |
\ for debugging... |
: order order ; |
: order order ; |
: words words ; |
: hwords words ; |
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: words also ghosts words previous ; |
: .s .s ; |
: .s .s ; |
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: bye bye ; |
: bye bye ; |
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\ turnkey direction |
\ turnkey direction |
Line 808 only forth also minimal definitions
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Line 2691 only forth also minimal definitions
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: T minimal ; immediate |
: T minimal ; immediate |
: G ghosts ; immediate |
: G ghosts ; immediate |
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: turnkey 0 set-order also Target definitions |
: turnkey |
also Minimal also ; |
\GFORTH 0 set-order also ghosts |
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\ANSI [ ' ghosts >wordlist ] Literal 1 set-order |
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also target definitions |
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also Minimal also ; |
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\ these ones are pefered: |
\ these ones are pefered: |
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: lock turnkey ; |
: lock turnkey ; |
: unlock forth also cross ; |
: unlock previous forth also cross ; |
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\ also minimal |
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: [[ also unlock ; |
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: ]] previous previous also also ; |
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unlock definitions also minimal |
unlock definitions also minimal |
: lock lock ; |
: lock lock ; |
lock |
lock |
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\ load cross compiler extension defined in mach file |
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UNLOCK >CROSS |
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[IFDEF] extend-cross extend-cross [THEN] |
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LOCK |