version 1.7, 1998/11/27 21:30:22
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version 1.14, 2003/03/09 17:16:38
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User-visible changes between 0.5.0 and 0.6.0: |
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Changes in behaviour: |
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S": interpreted use now ALLOCATEs the string (they live until BYE). |
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Long word names (512MB on 32-bit systems) are now supported (change to |
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the header format). |
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New threaded code execution method: primitive-centric (allows the |
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following), hybrid direct/indirect threaded (easier portability), |
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with dynamic superinstructions (typical speedup on Athlon: factor |
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2). New engine gforth-itc for dealing with some potential |
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backwards-compatibility problems (see "Invoking Gforth" in the |
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manual). |
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Operating environment: |
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Default dictionary size is now 4MB. |
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Large file support on OSs that support them (i.e., files with more |
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than 2GB on 32-bit machines). |
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Gforth can now deal with well with broken pipes in most situations. |
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vi tags files can be built with tags.fs (usage like etags.fs). |
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gforth.el mostly rewritten. |
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New image file format. |
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New words: |
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Keyboard input: EDIT-LINE K-PRIOR K-NEXT K-DELETE |
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File input: SLURP-FILE SLURP-FID |
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Programming tools: ID. .ID WORDLIST-WORDS SIMPLE-SEE |
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Conditional execution: [DEFINED] [UNDEFINED] |
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Defining Words: CONST-DOES> |
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Input stream: PARSE-WORD EXECUTE-PARSING EXECUTE-PARSING-FILE |
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String comparison: STR= STR< STRING-PREFIX? |
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String literals: S\" .\" \"-PARSE |
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Floating point output: F.RDP F>STR-RDP F>BUF-RDP |
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Miscellaneous: |
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Generalized prims2x.fs into Vmgen (see README.vmgen etc.); used the |
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new capabilities in prims (e.g., automatic handling of the return |
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stack and instruction stream). |
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User-visible changes between 0.4.0 and 0.5.0: |
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Changes in behaviour: |
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There are now two engines: the fast engine (gforth-fast) is at least |
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as fast as gforth in earlier releases; the debugging engine (gforth) |
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supports precise backtracing for signals (e.g., illegal memory |
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access), but is slower by a factor of 1-2. |
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Block files now start at block 0 by default (instead of block 1). If |
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you have block files around, prepend 1024 bytes to convert them, or |
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do a "1 OFFSET !" to establish the old behaviour. |
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Gforth now does not translate newlines to LFs on reading. Instead, |
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READ-LINE now interprets LF, CR, and CRLF as newlines. Newlines on |
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output are in the OSs favourite format. |
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SEE now disassembles primitives (or hex-DUMPs the code if no |
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disassembler is available). |
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>HEAD (aka >NAME) now returns 0 (instead of the nt of ???) on failure. |
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Syntax of prim changed: stack effects are now surrounded by |
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parentheses, tabs are insignificant. |
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Operating environment: |
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Gforth now produces a backtrace when catching an exception. |
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On platforms supporting the Unix 98 SA_SIGINFO semantics, you get more |
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precise error reports for SIGSEGV and SIGFPE (e.g., "stack |
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underflow" instead of "Invalid memory address"). |
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Gforth now produces exit code 1 if there is an error (i.e., an |
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uncaught THROW) in batch processing. |
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You can use "gforthmi --application ..." to build an image that |
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processes the whole command-line when invoked directly (instead of |
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through gforth -i). |
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Ports: |
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AIX. |
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20% speedup on 604e under powerpc-unknown-linux-gnu, |
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19%-29% speedup on Celeron with gcc-2.95. |
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New words: |
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Missing ANS Forth words: EKEY EKEY? EKEY>CHAR |
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Timing words: CPUTIME UTIME |
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Vector arithmetic: V* FAXPY |
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FP comparison: F~ABS F~REL |
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Deferred words: <IS> [IS] |
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Nested number output: <<# #>> |
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Exception handling: TRY RECOVER ENDTRY |
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Directory handling: OPEN-DIR READ-DIR CLOSE-DIR FILENAME-MATCH |
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Other: ]L PUSH-ORDER |
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Miscellaneous: |
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Significant extensions to the manual (added an introduction, among |
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other things), many of them due to a new team member: Neal Crook. |
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Added assemblers and disassemblers for 386, Alpha, MIPS (thanks to |
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contributions by Andrew McKewan, Bernd Thallner, and Christian |
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Pirker). Contributions of assemblers and disassemblers for other |
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architectures are welcome. |
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User-visible changes between 0.3.0 and 0.4.0: |
User-visible changes between 0.3.0 and 0.4.0: |
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Operating environment: |
Operating environment: |
Line 114 changed behaviour of SYSTEM (no longer r
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Line 217 changed behaviour of SYSTEM (no longer r
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$?) added (SYSTEM) ( c_addr u -- wretval wior ). |
$?) added (SYSTEM) ( c_addr u -- wretval wior ). |
' and ['] now give an error for compile-only words. |
' and ['] now give an error for compile-only words. |
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----- |
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Copyright (C) 1995,1996,1997,1998,2000,2003 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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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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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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