| \ CROSS.FS The Cross-Compiler 06oct92py |
\ CROSS.FS The Cross-Compiler 06oct92py |
| \ $Id$ |
|
| \ Idea and implementation: Bernd Paysan (py) |
\ Idea and implementation: Bernd Paysan (py) |
| \ Copyright 1992-94 by the GNU Forth Development Group |
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\ Copyright (C) 1995 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
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\ Gforth is free software; you can redistribute it and/or |
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\ modify it under the terms of the GNU General Public License |
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\ as published by the Free Software Foundation; either version 2 |
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\ of the License, or (at your option) any later version. |
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|
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\ This program is distributed in the hope that it will be useful, |
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\ but WITHOUT ANY WARRANTY; without even the implied warranty of |
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\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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\ GNU General Public License for more details. |
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|
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\ You should have received a copy of the GNU General Public License |
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\ along with this program; if not, write to the Free Software |
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\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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|
| \ Log: |
\ Log: |
| \ changed in ; [ to state off 12may93jaw |
\ changed in ; [ to state off 12may93jaw |
| \ targets 09jun93jaw |
\ targets 09jun93jaw |
| \ added: 2user and value 11jun93jaw |
\ added: 2user and value 11jun93jaw |
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| \ include other.fs \ ansforth extentions for cross |
\ needed? works better now!!! 01mar97jaw |
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\ mach file is only loaded into target |
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\ cell corrected |
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\ romable extansions 27apr97-5jun97jaw |
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\ environmental query support 01sep97jaw |
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\ added own [IF] ... [ELSE] ... [THEN] 14sep97jaw |
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\ extra resolver for doers 20sep97jaw |
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\ added killref for DOES> 20sep97jaw |
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hex \ the defualt base for the cross-compiler is hex !! |
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Warnings off |
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|
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\ words that are generaly useful |
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: >wordlist ( vocabulary-xt -- wordlist-struct ) |
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also execute get-order swap >r 1- set-order r> ; |
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|
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: umax 2dup u< IF swap THEN drop ; |
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: umin 2dup u> IF swap THEN drop ; |
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|
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: 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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|
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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 bl word drop >body ! 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 drop drop ELSE Value THEN ; |
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hex |
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Vocabulary Cross |
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Vocabulary Target |
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Vocabulary Ghosts |
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VOCABULARY Minimal |
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only Forth also Target also also |
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definitions Forth |
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: T previous Cross also Target ; immediate |
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: G Ghosts ; immediate |
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: H previous Forth also Cross ; immediate |
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forth definitions |
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: T previous Cross also Target ; immediate |
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: G Ghosts ; immediate |
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: >cross also Cross definitions previous ; |
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: >target also Target definitions previous ; |
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: >minimal also Minimal definitions previous ; |
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H |
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>CROSS |
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\ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are |
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\ for cross-compiling |
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\ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!! |
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|
| : comment? ( c-addr u -- c-addr u ) |
: comment? ( c-addr u -- c-addr u ) |
| 2dup s" (" compare 0= |
2dup s" (" compare 0= |
| ELSE 2dup s" \" compare 0= IF postpone \ THEN |
ELSE 2dup s" \" compare 0= IF postpone \ THEN |
| THEN ; |
THEN ; |
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| decimal |
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| \ Begin CROSS COMPILER: |
\ Begin CROSS COMPILER: |
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| \ GhostNames 9may93jaw |
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\ \ -------------------- Error Handling 05aug97jaw |
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\ Flags |
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also forth definitions \ these values may be predefined before |
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\ the cross-compiler is loaded |
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false DefaultValue stack-warn \ check on empty stack at any definition |
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false DefaultValue create-forward-warn \ warn on forward declaration of created words |
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[IFUNDEF] DebugMaskSrouce Variable DebugMaskSource 0 DebugMaskSource ! [THEN] |
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[IFUNDEF] DebugMaskCross Variable DebugMaskCross 0 DebugMaskCross ! [THEN] |
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previous >CROSS |
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: .dec |
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base @ decimal swap . base ! ; |
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: .sourcepos |
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cr sourcefilename type ." :" |
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sourceline# .dec ; |
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: warnhead |
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\G display error-message head |
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\G perhaps with linenumber and filename |
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.sourcepos ." Warning: " ; |
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: empty? depth IF .sourcepos ." Stack not empty!" THEN ; |
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stack-warn [IF] |
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: defempty? empty? ; |
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[ELSE] |
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: defempty? ; immediate |
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[THEN] |
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\ \ GhostNames Ghosts 9may93jaw |
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| \ second name source to search trough list |
\ second name source to search trough list |
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| VARIABLE GhostNames |
VARIABLE GhostNames |
| 0 GhostNames ! |
0 GhostNames ! |
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| : GhostName ( -- addr ) |
: GhostName ( -- addr ) |
| here GhostNames @ , GhostNames ! here 0 , |
here GhostNames @ , GhostNames ! here 0 , |
| bl word count |
bl word count |
| \ 2dup type space |
\ 2dup type space |
| string, cfalign ; |
string, \ !! cfalign ? |
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align ; |
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\ Ghost Builder 06oct92py |
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\ <T T> new version with temp variable 10may93jaw |
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VARIABLE VocTemp |
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: <T get-current VocTemp ! also Ghosts definitions ; |
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: T> previous VocTemp @ set-current ; |
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| hex |
hex |
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4711 Constant <fwd> 4712 Constant <res> |
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4713 Constant <imm> 4714 Constant <do:> |
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\ iForth makes only immediate directly after create |
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\ make atonce trick! ? |
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| Vocabulary Cross |
Variable atonce atonce off |
| Vocabulary Target |
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| Vocabulary Ghosts |
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| VOCABULARY Minimal |
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| only Forth also Target also also |
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| definitions Forth |
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| : T previous Cross also Target ; immediate |
: NoExec true ABORT" CROSS: Don't execute ghost" ; |
| : G Ghosts ; immediate |
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| : H previous Forth also Cross ; immediate |
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| forth definitions |
: GhostHeader <fwd> , 0 , ['] NoExec , ; |
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| : T previous Cross also Target ; immediate |
: >magic ; \ type of ghost |
| : G Ghosts ; immediate |
: >link cell+ ; \ pointer where ghost is in target, or if unresolved |
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\ points to the where we have to resolve (linked-list) |
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: >exec cell+ cell+ ; \ execution symantics (while target compiling) of ghost |
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: >end 3 cells + ; \ room for additional tags |
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\ for builder (create, variable...) words the |
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\ execution symantics of words built are placed here |
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Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes> |
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Variable last-ghost \ last ghost that is created |
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Variable last-header-ghost \ last ghost definitions with header |
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| : >cross also Cross definitions previous ; |
: Make-Ghost ( "name" -- ghost ) |
| : >target also Target definitions previous ; |
>in @ GhostName swap >in ! |
| : >minimal also Minimal definitions previous ; |
<T Create atonce @ IF immediate atonce off THEN |
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here tuck swap ! ghostheader T> |
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dup last-ghost ! |
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DOES> dup executed-ghost ! >exec @ execute ; |
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| H |
\ ghost words 14oct92py |
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\ changed: 10may93py/jaw |
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| >CROSS |
: gfind ( string -- ghost true/1 / string false ) |
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\ searches for string in word-list ghosts |
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dup count [ ' ghosts >wordlist ] ALiteral search-wordlist |
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dup IF >r >body nip r> THEN ; |
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| \ Variables 06oct92py |
: gdiscover ( xt -- ghost true | xt false ) |
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GhostNames |
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BEGIN @ dup |
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WHILE 2dup |
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cell+ @ dup >magic @ <fwd> <> |
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>r >link @ = r> and |
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IF cell+ @ nip true EXIT THEN |
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REPEAT |
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drop false ; |
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| -1 Constant NIL |
VARIABLE Already |
| Variable image |
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| Variable tlast NIL tlast ! \ Last name field |
: ghost ( "name" -- ghost ) |
| Variable tlastcfa \ Last code field |
Already off |
| Variable tdoes \ Resolve does> calls |
>in @ bl word gfind IF Already on nip EXIT THEN |
| Variable bit$ |
drop >in ! Make-Ghost ; |
| Variable tdp |
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| : there tdp @ ; |
: >ghostname ( ghost -- adr len ) |
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GhostNames |
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BEGIN @ dup |
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WHILE 2dup cell+ @ = |
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UNTIL nip 2 cells + count |
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ELSE 2drop |
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\ true abort" CROSS: Ghostnames inconsistent" |
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s" ?!?!?!" |
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THEN ; |
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' >ghostname ALIAS @name |
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|
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: forward? ( ghost -- flag ) |
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>magic @ <fwd> = ; |
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|
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\ Predefined ghosts 12dec92py |
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ghost 0= drop |
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ghost branch ghost ?branch 2drop |
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ghost (do) ghost (?do) 2drop |
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ghost (for) drop |
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ghost (loop) ghost (+loop) 2drop |
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ghost (next) drop |
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ghost unloop ghost ;S 2drop |
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ghost lit ghost (compile) ghost ! 2drop drop |
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ghost (does>) ghost noop 2drop |
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ghost (.") ghost (S") ghost (ABORT") 2drop drop |
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ghost ' drop |
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ghost :docol ghost :doesjump ghost :dodoes 2drop drop |
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ghost :dovar drop |
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ghost over ghost = ghost drop 2drop drop |
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ghost - drop |
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ghost 2drop drop |
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ghost 2dup drop |
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\ \ Parameter for target systems 06oct92py |
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\ we define it ans like... |
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wordlist Constant target-environment |
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| \ Parameter for target systems 06oct92py |
VARIABLE env-current \ save information of current dictionary to restore with environ> |
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| included |
: >ENVIRON get-current env-current ! target-environment set-current ; |
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: ENVIRON> env-current @ set-current ; |
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>TARGET |
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: environment? |
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target-environment search-wordlist |
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IF execute true ELSE false THEN ; |
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: e? name T environment? H 0= ABORT" environment variable not defined!" ; |
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: has? name T environment? H |
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IF \ environment variable is present, return its value |
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ELSE \ environment variable is not present, return false |
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\ !! JAW abort is just for testing |
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false true ABORT" arg" |
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THEN ; |
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| \ Create additional parameters 19jan95py |
: $has? T environment? H IF ELSE false THEN ; |
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>ENVIRON get-order get-current swap 1+ set-order |
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true SetValue compiler |
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true SetValue cross |
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true SetValue standard-threading |
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>TARGET previous |
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mach-file count included hex |
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>ENVIRON |
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T has? ec H |
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[IF] |
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false DefaultValue relocate |
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false DefaultValue file |
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false DefaultValue OS |
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false DefaultValue prims |
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false DefaultValue floating |
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false DefaultValue glocals |
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false DefaultValue dcomps |
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false DefaultValue hash |
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false DefaultValue xconds |
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false DefaultValue header |
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[THEN] |
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true DefaultValue interpreter |
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true DefaultValue ITC |
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false DefaultValue rom |
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>TARGET |
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s" relocate" T environment? H |
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[IF] SetValue NIL |
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[ELSE] >ENVIRON T NIL H SetValue relocate |
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[THEN] |
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>CROSS |
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\ \ Create additional parameters 19jan95py |
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| T |
T |
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NIL Constant TNIL |
| cell Constant tcell |
cell Constant tcell |
| cell<< Constant tcell<< |
cell<< Constant tcell<< |
| cell>bit Constant tcell>bit |
cell>bit Constant tcell>bit |
| 1 bits/byte lshift Constant maxbyte |
1 bits/byte lshift Constant maxbyte |
| H |
H |
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|
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\ Variables 06oct92py |
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Variable image |
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Variable tlast TNIL tlast ! \ Last name field |
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Variable tlastcfa \ Last code field |
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Variable tdoes \ Resolve does> calls |
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Variable bit$ |
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\ statistics 10jun97jaw |
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Variable headers-named 0 headers-named ! |
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Variable user-vars 0 user-vars ! |
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\ Memory initialisation 05dec92py |
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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] |
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\ MakeKernal 12dec92py |
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: makekernel ( targetsize -- targetsize ) |
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bit$ over 1- tcell>bit rshift 1+ initmem |
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image over initmem ; |
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>MINIMAL |
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: makekernel makekernel ; |
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>CROSS |
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\ \ memregion.fs |
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Variable last-defined-region \ pointer to last defined region |
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Variable region-link \ linked list with all regions |
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Variable mirrored-link \ linked list for mirrored regions |
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0 dup mirrored-link ! region-link ! |
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: >rdp 2 cells + ; |
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: >rlen cell+ ; |
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: >rstart ; |
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: region ( addr len -- ) \G create a new region |
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\ check whether predefined region exists |
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save-input bl word find >r >r restore-input throw r> r> 0= |
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IF \ make region |
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drop |
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save-input create restore-input throw |
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here last-defined-region ! |
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over ( startaddr ) , ( length ) , ( dp ) , |
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region-link linked name string, |
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ELSE \ store new parameters in region |
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bl word drop |
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>body >r r@ last-defined-region ! |
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r@ cell+ ! dup r@ ! r> 2 cells + ! |
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THEN ; |
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: borders ( region -- startaddr endaddr ) \G returns lower and upper region border |
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dup @ swap cell+ @ over + ; |
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: extent ( region -- startaddr len ) \G returns the really used area |
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dup @ swap 2 cells + @ over - ; |
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: area ( region -- startaddr totallen ) \G returns the total area |
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dup @ swap cell+ @ ; |
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: mirrored \G mark a region as mirrored |
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mirrored-link |
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linked last-defined-region @ , ; |
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: .addr |
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base @ >r hex |
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tcell 2 u> |
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IF s>d <# # # # # '. hold # # # # #> type |
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ELSE s>d <# # # # # # #> type |
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THEN r> base ! ; |
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: .regions \G display region statistic |
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|
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\ we want to list the regions in the right order |
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\ so first collect all regions on stack |
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0 region-link @ |
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BEGIN dup WHILE dup @ REPEAT drop |
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BEGIN dup |
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WHILE cr 3 cells - >r |
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r@ 4 cells + count tuck type |
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12 swap - 0 max spaces space |
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." Start: " r@ @ dup .addr space |
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." End: " r@ 1 cells + @ + .addr space |
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." DP: " r> 2 cells + @ .addr |
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REPEAT drop |
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s" rom" T $has? H 0= ?EXIT |
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cr ." Mirrored:" |
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mirrored-link @ |
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BEGIN dup |
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WHILE space dup cell+ @ 4 cells + count type @ |
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REPEAT drop cr |
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; |
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|
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\ -------- predefined regions |
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0 0 region address-space |
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\ total memory addressed and used by the target system |
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|
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0 0 region dictionary |
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\ rom area for the compiler |
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T has? rom H |
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[IF] |
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0 0 region ram-dictionary mirrored |
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\ ram area for the compiler |
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[ELSE] |
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' dictionary ALIAS ram-dictionary |
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[THEN] |
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0 0 region return-stack |
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0 0 region data-stack |
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0 0 region tib-region |
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' dictionary ALIAS rom-dictionary |
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: setup-target ( -- ) \G initialize targets memory space |
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s" rom" T $has? H |
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IF \ check for ram and rom... |
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address-space area nip |
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ram-dictionary area nip |
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rom-dictionary area nip |
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and and 0= |
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ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!" |
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THEN |
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address-space area nip |
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IF |
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address-space area |
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ELSE |
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dictionary area |
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THEN |
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dup 0= |
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ABORT" CROSS: define at least address-space or dictionary!!" |
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+ makekernel drop ; |
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\ \ switched tdp for rom support 03jun97jaw |
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|
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\ second value is here to store some maximal value for statistics |
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\ tempdp is also embedded here but has nothing to do with rom support |
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\ (needs switched dp) |
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|
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variable tempdp 0 , \ temporary dp for resolving |
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variable tempdp-save |
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0 [IF] |
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variable romdp 0 , \ Dictionary-Pointer for ramarea |
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variable ramdp 0 , \ Dictionary-Pointer for romarea |
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\ |
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variable sramdp \ start of ram-area for forth |
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variable sromdp \ start of rom-area for forth |
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[THEN] |
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0 value tdp |
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variable fixed \ flag: true: no automatic switching |
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\ false: switching is done automatically |
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\ Switch-Policy: |
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\ |
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\ a header is always compiled into rom |
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\ after a created word (create and variable) compilation goes to ram |
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\ |
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\ Be careful: If you want to make the data behind create into rom |
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\ you have to put >rom before create! |
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|
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variable constflag constflag off |
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: (switchram) |
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fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT |
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ram-dictionary >rdp to tdp ; |
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: switchram |
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constflag @ |
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IF constflag off ELSE (switchram) THEN ; |
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: switchrom |
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fixed @ ?EXIT rom-dictionary >rdp to tdp ; |
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|
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: >tempdp ( addr -- ) |
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tdp tempdp-save ! tempdp to tdp tdp ! ; |
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: tempdp> ( -- ) |
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tempdp-save @ to tdp ; |
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|
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: >ram fixed off (switchram) fixed on ; |
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: >rom fixed off switchrom fixed on ; |
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: >auto fixed off switchrom ; |
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\ : romstart dup sromdp ! romdp ! ; |
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\ : ramstart dup sramdp ! ramdp ! ; |
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|
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\ default compilation goed to rom |
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\ when romable support is off, only the rom switch is used (!!) |
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>auto |
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|
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: there tdp @ ; |
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| >TARGET |
>TARGET |
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|
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\ \ Target Memory Handling |
| |
|
| \ Byte ordering and cell size 06oct92py |
\ Byte ordering and cell size 06oct92py |
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|
| : cell+ tcell + ; |
: cell+ tcell + ; |
| : cells tcell<< lshift ; |
: cells tcell<< lshift ; |
| : chars ; |
: chars ; |
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: char+ 1 + ; |
| : floats tfloat * ; |
: floats tfloat * ; |
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|
| >CROSS |
>CROSS |
| : cell/ tcell<< rshift ; |
: cell/ tcell<< rshift ; |
| >TARGET |
>TARGET |
| 20 CONSTANT bl |
20 CONSTANT bl |
| -1 Constant NIL |
\ TNIL Constant NIL |
| -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 :dodefer |
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| -7 Constant :dodoes |
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| -8 Constant :doesjump |
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| >CROSS |
>CROSS |
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| bigendian |
bigendian |
| [IF] |
[IF] |
| : T! ( n addr -- ) >r s>d r> tcell bounds swap 1- |
: S! ( n addr -- ) >r s>d r> tcell bounds swap 1- |
| DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; |
DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; |
| : T@ ( addr -- n ) >r 0 0 r> tcell bounds |
: S@ ( addr -- n ) >r 0 0 r> tcell bounds |
| DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ; |
DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ; |
| [ELSE] |
[ELSE] |
| : T! ( n addr -- ) >r s>d r> tcell bounds |
: S! ( n addr -- ) >r s>d r> tcell bounds |
| DO maxbyte ud/mod rot I c! LOOP 2drop ; |
DO maxbyte ud/mod rot I c! LOOP 2drop ; |
| : T@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1- |
: 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 ; |
DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ; |
| [THEN] |
[THEN] |
| |
|
| \ Memory initialisation 05dec92py |
|
| \ Fixed bug in else part 11may93jaw |
|
| |
|
| [IFDEF] Memory \ Memory is a bigFORTH feature |
|
| also Memory |
|
| : initmem ( var len -- ) |
|
| 2dup swap handle! >r @ r> erase ; |
|
| toss |
|
| [ELSE] |
|
| : initmem ( var len -- ) |
|
| tuck allocate abort" CROSS: No memory for target" |
|
| ( len var adr ) dup rot ! |
|
| ( len adr ) swap erase ; |
|
| [THEN] |
|
| |
|
| \ MakeKernal 12dec92py |
|
| |
|
| >MINIMAL |
|
| : makekernal ( targetsize -- targetsize ) |
|
| bit$ over 1- cell>bit rshift 1+ initmem |
|
| image over initmem tdp off ; |
|
| |
|
| >CROSS |
>CROSS |
| \ Bit string manipulation 06oct92py |
\ Bit string manipulation 06oct92py |
| \ 9may93jaw |
\ 9may93jaw |
| \ Target memory access 06oct92py |
\ Target memory access 06oct92py |
| |
|
| : align+ ( taddr -- rest ) |
: align+ ( taddr -- rest ) |
| cell tuck 1- and - [ cell 1- ] Literal and ; |
tcell tuck 1- and - [ tcell 1- ] Literal and ; |
| : cfalign+ ( taddr -- rest ) |
: cfalign+ ( taddr -- rest ) |
| \ see kernal.fs:cfaligned |
\ see kernel.fs:cfaligned |
| float tuck 1- and - [ float 1- ] Literal and ; |
/maxalign tuck 1- and - [ /maxalign 1- ] Literal and ; |
| |
|
| >TARGET |
>TARGET |
| : aligned ( taddr -- ta-addr ) dup align+ + ; |
: aligned ( taddr -- ta-addr ) dup align+ + ; |
| \ assumes cell alignment granularity (as GNU C) |
\ assumes cell alignment granularity (as GNU C) |
| |
|
| : cfaligned ( taddr1 -- taddr2 ) |
: cfaligned ( taddr1 -- taddr2 ) |
| \ see kernal.fs |
\ see kernel.fs |
| dup cfalign+ + ; |
dup cfalign+ + ; |
| |
|
| >CROSS |
>CROSS |
| : >image ( taddr -- absaddr ) image @ + ; |
: >image ( taddr -- absaddr ) image @ + ; |
| >TARGET |
>TARGET |
| : @ ( taddr -- w ) >image t@ ; |
: @ ( taddr -- w ) >image S@ ; |
| : ! ( w taddr -- ) >image t! ; |
: ! ( w taddr -- ) >image S! ; |
| : c@ ( taddr -- char ) >image c@ ; |
: c@ ( taddr -- char ) >image c@ ; |
| : c! ( char taddr -- ) >image c! ; |
: c! ( char taddr -- ) >image c! ; |
| : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; |
: 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; |
| |
|
| : here ( -- there ) there ; |
: here ( -- there ) there ; |
| : allot ( n -- ) tdp +! ; |
: allot ( n -- ) tdp +! ; |
| : , ( w -- ) T here H cell T allot ! H ; |
: , ( w -- ) T here H tcell T allot ! H T here drop H ; |
| : c, ( char -- ) T here 1 allot c! H ; |
: c, ( char -- ) T here 1 allot c! H ; |
| : align ( -- ) T here H align+ 0 ?DO bl T c, H LOOP ; |
: align ( -- ) T here H align+ 0 ?DO bl T c, H LOOP ; |
| : cfalign ( -- ) |
: cfalign ( -- ) |
| |
|
| >CROSS |
>CROSS |
| |
|
| \ threading modell 13dec92py |
: tcmove ( source dest len -- ) |
| |
\G cmove in target memory |
| \ generic threading modell |
bounds |
| : docol, ( -- ) :docol T A, 0 , H ; |
?DO dup T c@ H I T c! H 1+ |
| |
LOOP drop ; |
| |
|
| >TARGET |
>TARGET |
| : >body ( cfa -- pfa ) T cell+ cell+ H ; |
H also Forth definitions \ ." asm: " order |
| >CROSS |
|
| |
|
| : dodoes, ( -- ) T :doesjump A, 0 , H ; |
: X also target bl word find |
| |
IF state @ IF compile, |
| |
ELSE execute THEN |
| |
ELSE previous ABORT" Cross: access method not supported!" |
| |
THEN |
| |
previous ; immediate |
| |
|
| \ Ghost Builder 06oct92py |
[IFDEF] asm-include asm-include [THEN] hex |
| |
|
| \ <T T> new version with temp variable 10may93jaw |
previous |
| |
>CROSS H |
| |
|
| VARIABLE VocTemp |
\ \ -------------------- Compiler Plug Ins 01aug97jaw |
| |
|
| : <T get-current VocTemp ! also Ghosts definitions ; |
\ Compiler States |
| : T> previous VocTemp @ set-current ; |
|
| |
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 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 ) |
| |
|
| 4711 Constant <fwd> 4712 Constant <res> |
[IFUNDEF] ca>native |
| 4713 Constant <imm> |
defer ca>native |
| |
[THEN] |
| |
|
| \ iForth makes only immediate directly after create |
>TARGET |
| \ make atonce trick! ? |
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 |
| |
|
| |
: (cc) T a, H ; ' (cc) IS colon, |
| |
|
| |
: (cr) >tempdp ]comp colon, 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 |
| |
|
| Variable atonce atonce off |
: (cm) ( -- addr ) |
| |
T here align H |
| |
-1 colon, ; ' (cm) IS colonmark, |
| |
|
| : NoExec true ABORT" CROSS: Don't execute ghost" ; |
>TARGET |
| |
: compile, colon, ; |
| |
>CROSS |
| |
|
| : GhostHeader <fwd> , 0 , ['] NoExec , ; |
\ file loading |
| |
|
| : >magic ; : >link cell+ ; : >exec cell+ cell+ ; |
: >fl-id 1 cells + ; |
| : >end 3 cells + ; |
: >fl-name 2 cells + ; |
| |
|
| Variable last-ghost |
Variable filelist 0 filelist ! |
| : Make-Ghost ( "name" -- ghost ) |
0 Value filemem |
| >in @ GhostName swap >in ! |
: loadfile filemem >fl-name ; |
| <T Create atonce @ IF immediate atonce off THEN |
|
| here tuck swap ! ghostheader T> |
1 [IF] \ !! JAW WIP |
| DOES> dup last-ghost ! >exec @ execute ; |
|
| |
: add-included-file ( adr len -- ) |
| |
dup char+ >fl-name allocate throw >r |
| |
r@ >fl-name place |
| |
filelist @ r@ ! |
| |
r> dup filelist ! to FileMem |
| |
; |
| |
|
| \ ghost words 14oct92py |
: included? ( c-addr u -- f ) |
| \ changed: 10may93py/jaw |
filelist |
| |
BEGIN @ dup |
| |
WHILE >r r@ 1 cells + count compare 0= |
| |
IF rdrop 2drop true EXIT THEN |
| |
r> |
| |
REPEAT |
| |
2drop drop false ; |
| |
|
| : gfind ( string -- ghost true/1 / string false ) |
: included |
| \ searches for string in word-list ghosts |
\ cr ." Including: " 2dup type ." ..." |
| \ !! wouldn't it be simpler to just use search-wordlist ? ae |
FileMem >r |
| dup count [ ' ghosts >body ] ALiteral search-wordlist |
2dup add-included-file included |
| dup IF >r >body nip r> THEN ; |
r> to FileMem ; |
| |
|
| VARIABLE Already |
: include bl word count included ; |
| |
|
| : ghost ( "name" -- ghost ) |
: require bl word count included ; |
| Already off |
|
| >in @ bl word gfind IF Already on nip EXIT THEN |
[THEN] |
| drop >in ! Make-Ghost ; |
|
| |
\ resolve structure |
| |
|
| |
: >next ; \ link to next field |
| |
: >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer |
| |
: >taddr cell+ cell+ ; |
| |
: >ghost 3 cells + ; |
| |
: >file 4 cells + ; |
| |
: >line 5 cells + ; |
| |
|
| |
: (refered) ( ghost addr tag -- ) |
| |
\G creates a reference to ghost at address taddr |
| |
rot >r here r@ >link @ , r> >link ! |
| |
( taddr tag ) , |
| |
( taddr ) , |
| |
last-header-ghost @ , |
| |
loadfile , |
| |
sourceline# , |
| |
; |
| |
|
| |
: 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 " >ghostname type dup ." in " >ghost @ >ghostname type ; |
| |
|
| |
: reswarn-forward ( ghost res-struct -- ghost res-struct ) |
| |
over warnhead >ghostname type dup ." is referenced in " |
| |
>ghost @ >ghostname type ; |
| |
|
| |
\ ' 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 |
| 2 cells + count cr ." CROSS: Exists: " type 4 spaces drop |
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 ; |
| |
|
| : 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 forward? 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 ! |
| |
\ 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 -- ) |
: is-forward ( ghost -- ) |
| >link dup @ there rot ! T A, H ; |
colonmark, 0 (refered) ; \ compile space for call |
| : do-resolve ( ghost -- ) |
|
| >link @ T A, H ; |
: is-resolved ( ghost -- ) |
| |
>link @ colon, ; \ compile-call |
| : gexecute ( ghost -- ) dup @ |
|
| <fwd> = IF do-forward ELSE do-resolve THEN ; |
: gexecute ( ghost -- ) |
| : ghost, ghost gexecute ; |
dup @ <fwd> = IF is-forward ELSE is-resolved THEN ; |
| |
|
| |
: addr, ( ghost -- ) |
| |
dup @ <fwd> = IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ; |
| |
|
| |
\ !! : ghost, ghost gexecute ; |
| |
|
| \ .unresolved 11may93jaw |
\ .unresolved 11may93jaw |
| |
|
| |
|
| \ ?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 @ >ghostname type |
| |
." 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 |
>MINIMAL |
| : .unresolved ( -- ) |
: .unresolved ( -- ) |
| WHILE dup ?resolved |
WHILE dup ?resolved |
| REPEAT drop ResolveFlag @ |
REPEAT drop ResolveFlag @ |
| IF |
IF |
| abort" Unresolved words!" |
-1 abort" Unresolved words!" |
| ELSE |
ELSE |
| ." Nothing!" |
." Nothing!" |
| THEN |
THEN |
| cr ; |
cr ; |
| |
|
| |
: .stats |
| |
base @ >r decimal |
| |
cr ." named Headers: " headers-named @ . |
| |
r> base ! ; |
| |
|
| >CROSS |
>CROSS |
| \ Header states 12dec92py |
\ Header states 12dec92py |
| |
|
| VARIABLE ^imm |
VARIABLE ^imm |
| |
|
| >TARGET |
>TARGET |
| : immediate 20 flag! |
: immediate 40 flag! |
| ^imm @ @ dup <imm> = IF drop EXIT THEN |
^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 40 flag! ; |
: restrict 20 flag! ; |
| |
|
| |
: isdoer |
| |
\G define a forth word as doer, this makes obviously only sence on |
| |
\G forth processors such as the PSC1000 |
| |
<do:> last-header-ghost @ >magic ! ; |
| >CROSS |
>CROSS |
| |
|
| \ ALIAS2 ansforth conform alias 9may93jaw |
\ ALIAS2 ansforth conform alias 9may93jaw |
| |
|
| \ 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" -- ) bl word count string, T cfalign H ; |
: name, ( "name" -- ) bl word count T string, cfalign H ; |
| : view, ( -- ) ( dummy ) ; |
: view, ( -- ) ( dummy ) ; |
| |
>CROSS |
| |
|
| |
\ Target Document Creation (goes to crossdoc.fd) 05jul95py |
| |
|
| |
s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id |
| |
\ contains the file-id of the documentation file |
| |
|
| |
: T-\G ( -- ) |
| |
source >in @ /string doc-file-id write-line throw |
| |
postpone \ ; |
| |
|
| |
Variable to-doc to-doc on |
| |
|
| |
: cross-doc-entry ( -- ) |
| |
to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header |
| |
IF |
| |
s" " doc-file-id write-line throw |
| |
s" make-doc " doc-file-id write-file throw |
| |
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 ( -- ) |
| |
loadfilename 2@ 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 ; |
| |
|
| VARIABLE CreateFlag CreateFlag off |
: 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? |
| |
|
| |
: defined? ( -- flag ) \ name |
| |
ghost forward? 0= ; |
| |
|
| |
: 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 forward? |
| |
nip |
| |
0= |
| |
ELSE drop true THEN ; |
| |
|
| |
: doer? ( -- flag ) \ name |
| |
ghost >magic @ <do:> = ; |
| |
|
| : (Theader ( "name" -- ghost ) T align H view, |
: skip-defs ( -- ) |
| |
BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ; |
| |
|
| |
\ Target header creation |
| |
|
| |
Variable CreateFlag |
| |
CreateFlag off |
| |
|
| |
Variable NoHeaderFlag |
| |
NoHeaderFlag off |
| |
|
| |
: 0.r ( n1 n2 -- ) |
| |
base @ >r hex |
| |
0 swap <# 0 ?DO # LOOP #> type |
| |
r> base ! ; |
| |
: .sym |
| |
bounds |
| |
DO I c@ dup |
| |
CASE '/ OF drop ." \/" ENDOF |
| |
'\ 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 T 1 cells - THEN A, H there tlast ! |
tlast @ dup 0> IF T 1 cells - THEN A, H there tlast ! |
| >in @ name, >in ! T here H tlastcfa ! |
1 headers-named +! \ Statistic |
| CreateFlag @ IF |
>in @ T name, H >in ! |
| |
THEN |
| |
T cfalign here H tlastcfa ! |
| |
\ Symbol table |
| |
\ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in ! |
| |
CreateFlag @ |
| |
IF |
| >in @ alias2 swap >in ! \ create alias in target |
>in @ alias2 swap >in ! \ create alias in target |
| >in @ ghost swap >in ! |
>in @ ghost swap >in ! |
| swap also ghosts ' previous swap ! \ tick ghost and store in alias |
swap also ghosts ' previous swap ! \ tick ghost and store in alias |
| CreateFlag off |
CreateFlag off |
| ELSE ghost THEN |
ELSE ghost |
| |
THEN |
| |
dup Last-Header-Ghost ! |
| dup >magic ^imm ! \ a pointer for immediate |
dup >magic ^imm ! \ a pointer for immediate |
| Already @ IF dup >end tdoes ! |
Already @ |
| ELSE 0 tdoes ! THEN |
IF dup >end tdoes ! |
| 80 flag! ; |
ELSE 0 tdoes ! |
| |
THEN |
| |
80 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" -- ghost ) |
: Theader ( "name" -- ghost ) |
| (THeader dup there resolve 0 ;Resolve ! ; |
(THeader dup there resolve 0 ;Resolve ! ; |
| |
|
| >TARGET |
>TARGET |
| : Alias ( cfa -- ) \ name |
: Alias ( cfa -- ) \ name |
| |
>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 80 flag! ; |
(THeader over resolve T A, H 80 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 ! ; |
| >CROSS |
>CROSS |
| |
|
| \ Conditionals and Comments 11may93jaw |
\ Conditionals and Comments 11may93jaw |
| |
|
| 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 |
|
| ghost ' |
|
| |
|
| \ compile 10may93jaw |
\ compile 10may93jaw |
| |
|
| : compile ( -- ) \ name |
: compile ( -- ) \ name |
| ELSE postpone literal postpone gexecute THEN ; |
ELSE postpone literal postpone gexecute THEN ; |
| immediate |
immediate |
| |
|
| |
: [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 forward? ABORT" CROSS: forward " >link @ ; |
| |
|
| >TARGET |
>TARGET |
| : ' ( -- cfa ) bl word 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 |
| |
|
| |
: [T'] |
| |
\ 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 T c, H LOOP ; |
| |
|
| |
: (>body) ( cfa -- pfa ) xt>body + ; ' (>body) T IS >body H |
| |
|
| |
: (doer,) ( ghost -- ) ]comp gexecute 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, |
| |
|
| |
: (alit,) ( n -- ) lit, T here cell - H relon ; ' (alit,) IS alit, |
| |
|
| |
: (fini,) compile ;s ; ' (fini,) IS fini, |
| |
|
| |
[IFUNDEF] (code) |
| |
Defer (code) |
| |
Defer (end-code) |
| |
[THEN] |
| |
|
| |
>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 |
| |
; |
| |
|
| Cond: chars ;Cond |
Cond: chars ;Cond |
| |
|
| >CROSS |
>CROSS |
| \ tLiteral 12dec92py |
|
| |
|
| : lit, ( n -- ) compile lit T , H ; |
\ tLiteral 12dec92py |
| : alit, ( n -- ) compile lit T A, H ; |
|
| |
|
| >TARGET |
>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 16 and 32 Bit Targets and 32 Bit Hosts! |
| |
|
| |
Cond: MAXU |
| |
restrict? |
| |
tcell 1 cells u> |
| |
IF compile lit tcell 0 ?DO FF T c, H LOOP |
| |
ELSE $ffffffff lit, THEN |
| |
;Cond |
| |
|
| |
Cond: MINI |
| |
restrict? |
| |
tcell 1 cells u> |
| |
IF 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 |
| |
ELSE tcell 2 = IF $8000 ELSE $80000000 THEN lit, THEN |
| |
;Cond |
| |
|
| |
Cond: MAXI |
| |
restrict? |
| |
tcell 1 cells u> |
| |
IF 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 |
| |
ELSE tcell 2 = IF $7fff ELSE $7fffffff THEN lit, THEN |
| |
;Cond |
| |
|
| >CROSS |
>CROSS |
| \ Target compiling loop 12dec92py |
\ Target compiling loop 12dec92py |
| \ ">tib trick thrown out 10may93jaw |
\ ">tib trick thrown out 10may93jaw |
| \ ] 9may93py/jaw |
\ ] 9may93py/jaw |
| |
|
| : ] state on |
: ] state on |
| |
Compiling comp-state ! |
| BEGIN |
BEGIN |
| BEGIN >in @ bl word |
BEGIN >in @ bl word |
| dup c@ 0= WHILE 2drop refill 0= |
dup c@ 0= WHILE 2drop refill 0= |
| \ 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 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> ; |
| |
|
| >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 @ T here H resolve 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:-xt "name" -- ) |
| |
\ builds up a builder in current vocabulary |
| |
\ create-xt is executed when word is interpreted |
| |
\ do:-xt is executet when the created word from builder is executed |
| |
\ for do:-xt an additional entry after the normal ghost-enrys is used |
| |
|
| >in @ alias2 swap dup >in ! >r >r |
>in @ alias2 swap dup >in ! >r >r |
| Make-Ghost rot swap >exec ! , |
Make-Ghost |
| |
rot swap >exec dup @ ['] NoExec <> |
| |
IF 2drop ELSE ! THEN |
| |
, |
| r> r> >in ! |
r> r> >in ! |
| also ghosts ' previous swap ! ; |
also ghosts ' previous swap ! ; |
| \ DOES> dup >exec @ execute ; |
\ DOES> dup >exec @ execute ; |
| |
|
| : gdoes, ( ghost -- ) >end @ dup >magic @ <fwd> <> |
: gdoes, ( ghost -- ) |
| IF dup >link @ dup 0< IF T A, 0 , H drop EXIT THEN drop THEN |
\ makes the codefield for a word that is built |
| :dodoes T A, H gexecute T here H cell - reloff ; |
>end @ dup forward? 0= |
| |
IF |
| |
dup >magic @ <do:> = |
| |
IF doer, |
| |
ELSE dodoes, |
| |
THEN |
| |
EXIT |
| |
THEN |
| |
\ compile :dodoes gexecute |
| |
\ T here H tcell - reloff |
| |
2 refered |
| |
0 fillcfa |
| |
; |
| |
|
| : TCreate ( -- ) |
: TCreate ( <name> -- ) |
| last-ghost @ |
executed-ghost @ |
| CreateFlag on |
CreateFlag on |
| |
create-forward-warn |
| |
IF ['] reswarn-forward IS resolve-warning THEN |
| Theader >r dup gdoes, |
Theader >r dup gdoes, |
| |
\ stores execution symantic in the built word |
| |
>end @ >exec @ r> >exec ! ; |
| |
|
| |
: RTCreate ( <name> -- ) |
| |
\ creates a new word with code-field in ram |
| |
executed-ghost @ |
| |
CreateFlag on |
| |
create-forward-warn |
| |
IF ['] reswarn-forward IS resolve-warning THEN |
| |
\ make Alias |
| |
(THeader there 0 T a, H 80 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, |
| >end @ >exec @ r> >exec ! ; |
>end @ >exec @ r> >exec ! ; |
| |
|
| : 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 ) |
| last-ghost @ |
executed-ghost @ |
| state @ IF gexecute true EXIT THEN |
state @ IF gexecute true EXIT THEN |
| cell+ @ T >body H false ; |
>link @ T >body H false ; |
| |
|
| \ DO: ;DO 11may93jaw |
\ DO: ;DO 11may93jaw |
| \ changed to ?EXIT 10may93jaw |
\ changed to ?EXIT 10may93jaw |
| here ghostheader |
here ghostheader |
| :noname postpone gdoes> postpone ?EXIT ; |
:noname postpone gdoes> postpone ?EXIT ; |
| |
|
| : ;DO ( addr [xt] [colon-sys] -- ) |
: by: ( -- addr [xt] [colon-sys] ) \ name |
| |
ghost |
| |
:noname postpone gdoes> postpone ?EXIT ; |
| |
|
| |
: ;DO ( addr [xt] [colon-sys] -- addr ) |
| postpone ; ( S addr xt ) |
postpone ; ( S addr xt ) |
| over >exec ! ; immediate |
over >exec ! ; immediate |
| |
|
| >TARGET |
>TARGET |
| \ Variables and Constants 05dec92py |
\ Variables and Constants 05dec92py |
| |
|
| Build: ; |
Build: ( n -- ) ; |
| DO: ( ghost -- addr ) ;DO |
by: :docon ( ghost -- n ) T @ H ;DO |
| |
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 |
| 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 |
| |
|
| >TARGET |
>TARGET |
| |
|
| Build: T 0 u, , H ; |
Build: T 0 u, , H ; |
| DO: ( ghost -- up-addr ) T @ H tup @ + ;DO |
by: :douser ( ghost -- up-addr ) T @ H tup @ + ;DO |
| Builder User |
Builder User |
| by User :douser resolve |
|
| |
|
| Build: T 0 u, , 0 u, drop H ; |
Build: T 0 u, , 0 u, drop H ; |
| by User |
by User |
| 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 |
Builder Value |
| by Constant :docon resolve |
|
| |
|
| Build: ( n -- ) T A, H ; |
BuildSmart: T A, H ; |
| by Constant |
by (Constant) |
| Builder AConstant |
Builder AValue |
| |
|
| Build: T 0 , H ; |
BuildSmart: ( -- ) [T'] noop T A, H ; |
| by Constant |
by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO |
| Builder Value |
Builder Defer |
| |
|
| Build: ( -- ) compile noop ; |
BuildSmart: ( inter comp -- ) swap T immediate A, A, H ; |
| DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO |
DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO |
| Builder Defer |
Builder interpret/compile: |
| by Defer :dodefer resolve |
|
| |
\ 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 |
| |
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 ; |
| |
|
| |
\ ' 2Constant Alias2 end-struct |
| |
\ 0 1 T Chars H 2Constant struct |
| |
|
| \ 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 -- ) - ; |
| |
|
| |
: >resolve ( sys -- ) T here ( dup ." >" hex. ) over branchoffset swap ! H ; |
| |
|
| |
: <resolve ( sys -- ) T here ( dup ." <" hex. ) branchoffset , H ; |
| |
|
| |
:noname compile branch T here branchoffset , H ; |
| |
IS branch, ( target-addr -- ) |
| |
:noname compile ?branch T here branchoffset , H ; |
| |
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 T @ H ?struc T here over branchoffset swap ! H ; |
| |
IS branchtoresolve, ( branchtoken -- ) |
| |
:noname branchto, T here H ; |
| |
IS branchtomark, ( -- target-addr ) |
| |
|
| >TARGET |
>TARGET |
| |
|
| \ Structural Conditionals 12dec92py |
\ Structural Conditionals 12dec92py |
| Cond: BUT restrict? sys? swap ;Cond |
Cond: BUT restrict? sys? swap ;Cond |
| Cond: YET restrict? sys? dup ;Cond |
Cond: YET restrict? sys? dup ;Cond |
| |
|
| |
0 [IF] |
| >CROSS |
>CROSS |
| Variable tleavings |
Variable tleavings |
| >TARGET |
>TARGET |
| tleavings ! drop ;Cond |
tleavings ! drop ;Cond |
| |
|
| >CROSS |
>CROSS |
| : (leave T here H tleavings @ T , H tleavings ! ; |
: (leave) T here H tleavings @ T , H tleavings ! ; |
| >TARGET |
>TARGET |
| |
|
| Cond: LEAVE restrict? compile branch (leave ;Cond |
Cond: LEAVE restrict? compile branch (leave) ;Cond |
| Cond: ?LEAVE restrict? compile 0= compile ?branch (leave ;Cond |
Cond: ?LEAVE restrict? compile 0= compile ?branch (leave) ;Cond |
| |
|
| |
[ELSE] |
| |
\ !! This is WIP |
| |
\ The problem is (?DO)! |
| |
\ perhaps we need a plug-in for (?DO) |
| |
|
| |
>CROSS |
| |
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 |
| |
|
| |
Cond: DONE ( addr -- ) restrict? (done) ;Cond |
| |
|
| |
>CROSS |
| |
: (leave) ( branchtoken -- ) |
| |
3 cells allocate throw >r |
| |
T here H r@ cell+ ! |
| |
r@ 2 cells + ! |
| |
tleavings @ r@ ! |
| |
r> tleavings ! ; |
| |
>TARGET |
| |
|
| |
Cond: LEAVE restrict? branchmark, (leave) ;Cond |
| |
Cond: ?LEAVE restrict? compile 0= ?branchmark, (leave) ;Cond |
| |
|
| |
[THEN] |
| |
|
| |
>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 |
| 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: TO T ' >body H compile ALiteral compile ! ;Cond |
Cond: TO T ' >body H compile ALiteral compile ! ;Cond |
| : TO T ' >body ! H ; |
: 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 T here over @ A, swap ! H ; |
| |
: 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 |
| 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 |
| bl word 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 |
| |
|
| |
\ \ minimal definitions |
| |
|
| >MINIMAL |
>MINIMAL |
| also minimal |
also minimal |
| |
|
| : 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? 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? bl word gfind IF >magic @ <fwd> <> ELSE drop false THEN ; |
: defined? defined? ; |
| |
: 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 ] aliteral search-wordlist |
| |
dup IF nip THEN ; |
| |
|
| |
: [IFDEF] >in @ directive? swap >in ! |
| |
0= IF defined? ELSE name 2drop true THEN |
| |
postpone [IF] ; |
| |
|
| |
: [IFUNDEF] defined? 0= postpone [IF] ; |
| |
|
| |
Cond: [IFDEF] postpone [IFDEF] ;Cond |
| |
|
| : [IFDEF] there? postpone [IF] ; |
Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond |
| : [IFUNDEF] there? 0= postpone [IF] ; |
|
| |
|
| \ C: \- \+ Conditional Compiling 09jun93jaw |
\ C: \- \+ Conditional Compiling 09jun93jaw |
| |
|
| : C: >in @ there? 0= |
: C: >in @ defined? 0= |
| IF >in ! T : H |
IF >in ! T : H |
| ELSE drop |
ELSE drop |
| BEGIN bl word dup c@ |
BEGIN bl word dup c@ |
| |
|
| also minimal |
also minimal |
| |
|
| : \- there? IF postpone \ THEN ; |
\G doesn't skip line when bit is set in debugmask |
| : \+ there? 0= IF postpone \ THEN ; |
: \D name evaluate debugmasksource @ and 0= IF postpone \ THEN ; |
| |
|
| : [IF] postpone [IF] ; |
\G interprets the line if word is not defined |
| : [THEN] postpone [THEN] ; |
: \- defined? IF postpone \ THEN ; |
| : [ELSE] postpone [ELSE] ; |
|
| |
\G interprets the line if word is defined |
| Cond: [IF] [IF] ;Cond |
: \+ defined? 0= IF postpone \ THEN ; |
| Cond: [IFDEF] [IFDEF] ;Cond |
|
| Cond: [IFUNDEF] [IFUNDEF] ;Cond |
Cond: \- \- ;Cond |
| Cond: [THEN] [THEN] ;Cond |
Cond: \+ \+ ;Cond |
| Cond: [ELSE] [ELSE] ;Cond |
Cond: \D \D ;Cond |
| |
|
| |
: ?? bl word find IF execute ELSE drop 0 THEN ; |
| |
|
| |
: needed: |
| |
\G defines ghost for words that we want to be compiled |
| |
BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ; |
| |
|
| |
previous |
| |
|
| \ save-cross 17mar93py |
\ save-cross 17mar93py |
| |
|
| \ i'm not interested in bigforth features this time 10may93jaw |
>CROSS |
| \ [IFDEF] file |
Create magic s" Gforth10" here over allot swap move |
| \ also file |
|
| \ [THEN] |
|
| \ included throw after create-file 11may93jaw |
|
| |
|
| bigendian Constant bigendian |
char 1 bigendian + tcell + magic 7 + c! |
| |
|
| : save-cross ( "name" -- ) |
: save-cross ( "image-name" "binary-name" -- ) |
| bl parse ." Saving to " 2dup type |
bl parse ." Saving to " 2dup type cr |
| w/o bin create-file throw >r |
w/o bin create-file throw >r |
| s" gforth00" r@ write-file throw \ write magic |
TNIL IF |
| image @ there r@ write-file throw \ write image |
s" #! " r@ write-file throw |
| bit$ @ there 1- cell>bit rshift 1+ |
bl parse r@ write-file throw |
| |
s" -i" 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 |
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 ; |
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 ; |
|
| : drop drop ; : = = ; |
|
| : lshift lshift ; : 2/ 2/ ; |
|
| : . . ; |
|
| cell constant cell |
|
| |
|
| \ include bug5.fs |
>MINIMAL |
| \ only forth also minimal definitions |
also minimal |
| |
|
| : \ postpone \ ; |
bigendian Constant bigendian |
| : ( postpone ( ; |
: here there ; |
| |
|
| |
\ compiler directives |
| |
: >ram >ram ; |
| |
: >rom >rom ; |
| |
: >auto >auto ; |
| |
: >tempdp >tempdp ; |
| |
: tempdp> tempdp> ; |
| |
: const constflag on ; |
| |
: warnings name 3 = 0= twarnings ! drop ; |
| |
: | NoHeaderFlag on ; |
| |
|
| |
: 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 + ; |
| |
: or or ; |
| |
: 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 ['] false IS skip? ; |
| |
: needed-words ['] needed? IS skip? ; |
| |
: undef-words ['] defined? IS skip? ; |
| |
|
| |
: \ 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 T c, H LOOP drop ; \ used for space table creation |
| : hex hex ; |
: hex hex ; |
| |
|
| : tudp T tudp H ; |
: tudp T tudp H ; |
| : tup T tup H ; minimal |
: tup T tup H ; |
| |
|
| |
: doc-off false T to-doc H ! ; |
| |
: doc-on true T to-doc H ! ; |
| |
[IFDEF] dbg : dbg dbg ; [THEN] |
| |
|
| |
minimal |
| |
|
| \ for debugging... |
\ for debugging... |
| : order order ; |
: order order ; |
| : words words ; |
: hwords words ; |
| |
: words also ghosts words previous ; |
| : .s .s ; |
: .s .s ; |
| |
|
| : bye bye ; |
: bye bye ; |
| |
|
| \ turnkey direction |
\ turnkey direction |
| : lock turnkey ; |
: lock turnkey ; |
| : unlock forth also cross ; |
: unlock forth also cross ; |
| |
|
| |
: [[ also unlock ; |
| |
: ]] previous previous ; |
| |
|
| unlock definitions also minimal |
unlock definitions also minimal |
| : lock lock ; |
: lock lock ; |
| lock |
lock |