| User-visible changes between 0.2.0 and 0.2.1 |
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User-visible changes between 0.6.2 and 0.6.9 (up to 2007-06-01): |
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Installation: |
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support for DESTDIR, POST_INSTALL, INSTALL_SCRIPT |
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report performance and functionality problems at end of "make" |
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Bug fixes |
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Now works with address-space randomization. |
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The single-step debugger works again in some engines. |
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Many others. |
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Ports: |
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AMD64, ARM, IA-64 (Itanium): better performance |
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PPC: disassembler and assembler (32-bit) |
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Gforth EC: R8C, Lego NXT (complete?) |
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Invocation: |
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New flags --ignore-async-signals, --vm-commit (default overcommit) |
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Forth 200x: |
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extension queries (produce true for all implemented extensions) |
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REQUIRED etc. (not new) |
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[DEFINED] and [UNDEFINED] |
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PARSE-NAME (new name) |
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deferred words (new: DEFER@ DEFER! ACTION-OF) |
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Unicode support (incomplete, documentation probably not up-to-date): |
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added xchars words for dealing with variable-width multi-byte characters |
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provide 8bit (ISO Latin 1) and UTF-8 support for xchars |
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Number prefixes: |
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0x is a hex prefix: 0xff and 0XfF now produces (decimal) 255 |
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# is a decimal prefix: #10 now produces (decimal) 10 |
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' now only handles a single (x)char: 'ab is no longer accepted, |
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'a' now produces (decimal) 97 |
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New words: |
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\C C-FUNCTION (C interface) |
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OUTFILE-EXECUTE INFILE-EXECUTE BASE-EXECUTE (limited change of global state) |
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16-bit and 32-bit memory acces: UW@ UL@ SW@ SL@ W! L! W@ L@ /W /L |
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NEXT-ARG SHIFT-ARGS (OS command-line argument processing) |
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NOTHROW (for backtrace control) |
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FTRUNC FMOD (undocumented) |
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Improvements/changes of existing words: |
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TRY...ENDTRY changed significantly, compatibility files available (see docs). |
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The disassembler (DISCODE) can now use gdb to disassemble code |
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Uninitialized defered words now give a warning when executed |
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Division is floored (disable with "configure --enable-force-cdiv") |
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Gforth (not gforth-fast) reports division by zero and overflow on division |
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on all platforms. |
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Newly documented words: |
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S>NUMBER? S>UNUMBER? |
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EKEY keypress names: K-LEFT K-RIGHT K-UP K-DOWN K-HOME K-END K-PRIOR |
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K-NEXT K-INSERT K-DELETE K1 K2 K3 K4 K5 K6 K7 K8 K9 K10 K11 K12 |
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S-K1 S-K2 S-K3 S-K4 S-K5 S-K6 S-K7 S-K8 S-K9 S-K10 S-K11 S-K12 |
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CLEARSTACKS |
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FORM |
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Environment variable GFORTHSYSTEMPREFIX (used by word SYSTEM and friends) |
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C interface: |
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exported symbols now start with "gforth_" (for referencing them from C code) |
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support for use of libffi (supplied with gcc) and |
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a C-compiler-based approach (requires C compiler at run-time) (incomplete). |
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Libraries: |
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depth-changes.fs: report stack depth changes during interpretation |
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ans-report.fs now reports CfV extensions |
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fsl-util.4th: FSL support files (undocumented) |
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regexp.fs for regular expressions (undocumented) |
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complex.fs for complex numbers (undocumented) |
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fft.fs for Fast Fourier Transform (undocumented) |
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wf.fs, a Wiki implementation (undocumented) |
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httpd.fs, a web server (undocumented) |
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status.fs, show interpreter status in separate xterm (undocumented) |
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profile.fs for profiling (undocumented, incomplete) |
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endtry-iferror.fs, recover-endtry.fs to ease the TRY change transition |
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compat library: |
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compat/execute-parsing.fs |
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Speed improvements: |
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static stack caching (good speedup on PPC) |
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mixed-precision division is now faster |
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support for int128 types on AMD64 |
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workarounds for gcc performance bugs (in particular, PR 15242) |
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User-visible changes between 0.6.1 and 0.6.2: |
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Bug fixes (in particular, gforth-0.6.2 compiles with gcc-3.3) |
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New words: LATEST, LATESTXT (LASTXT deprecated) |
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Operating environment: Added optional support for a C interface built |
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on the ffcall libraries (more portable and powerful than the old |
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one, but still not documented). To use it, the ffcall libraries |
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have to be installed before building Gforth (see INSTALL). |
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Miscellaneous: Gforth-fast now uses static superinstructions (some |
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speedup on some platforms); generally this is transparent (apart |
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from the speedup), but there are lots of command-line options for |
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controlling the static superinstruction generation. |
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User-visible changes between 0.6.0 and 0.6.1: |
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Bug fixes (installation on big-endian machines sometimes did not work) |
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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 "Direct or Indirect Threaded?" |
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in the 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 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: |
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Operating environment: |
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Path handling: "." at the start of the path represents the directory |
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the nearest enclosing file resides in (if there is none: the working |
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directory). "~+" indicates the working directory. The default path |
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now has "." in front. |
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gforth and gforthmi is now more GNU standards compliant (wrt |
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command-line options). |
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New command-line-option: --die-on-signal |
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Errors are now directed to stderr. |
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Stdout is now unbuffered, if it is a tty. |
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User input device redirection (for filters) is now possible. |
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Ports: |
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Now runs on IRIX (and other MIPS-based systems without linker-flag -d). |
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Direct threading now works on PowerPC (20% speedup on 604e). |
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Better support for m68k (thanks to Andreas Schwab and Jorge Acereda). |
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It is possible to create executables that contain the image (for |
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non-OS systems). |
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Added a lot of embedded control (EC) stuff. Supported controllers and |
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small CPUs are Siemens C16x, 8086, 6502, Mixed-Mode's FPGA MISC, Bernd Paysan's |
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4stack processor. Not finished: ShBoom alias PSC1000, H8, AVR. |
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New, changed, and removed words: |
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Renamed F0 to FP0 (avoids unexpected behaviour in hex), added aliases |
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SP0, RP0, LP0 (recommended for future use) for S0, R0, L0. |
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Renamed PARSE-WORD into SWORD (PARSE-WORD is used with the meaning of |
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NAME in OpenBoot and dpans6 A.6.2.2008) |
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Added FPICK (suggested by Julian Noble). |
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Added EXCEPTION. |
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S" gforth" ENVIRONMENT? now produces the version-string. |
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Changed representation of types in struct package, and correspondingly |
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changed names. |
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Miscellaneous: |
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Plain text documentation is now available in doc/gforth.txt. |
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Documentation improvements. |
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Wordlist structure changed. |
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Added mini-oof. |
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Reorganized files: added directories and reorganized many files into |
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them; renamed files into 8.3 format to work with completely broken |
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systems (but there are again some files that won't work there). |
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Bug fixes. |
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Various changes without log information only known as mega-patches. |
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Cross compiler now also supports compilation only for undefined or forward |
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referenced words. Plugins to support some native code generation |
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(for PSC1000). |
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More files in the compat library. |
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User-visible changes between 0.2.1 and 0.3.0: |
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Stack overflow detection by memory protection on most systems |
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(allocation with mmap). |
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gforth.fi is now fully relocatable. |
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fully relocatable images are now easier to create. |
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added primitives K and UNDER+. |
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Win32 support. |
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Improved support for embedded controllers and other deprived environments. |
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some bug fixes. |
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added concept index; other documentation improvements. |
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User-visible changes between 0.2.0 and 0.2.1: |
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| Bug fixes |
Bug fixes |
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| User-visible changes between 0.1beta and 0.2.0 |
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User-visible changes between 0.1beta and 0.2.0: |
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| Portability and Installation: |
Portability and Installation: |
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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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----- |
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Copyright (C) 1995,1996,1997,1998,2000,2003,2006 Free Software Foundation, Inc. |
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|
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This file is part of Gforth. |
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|
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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 |
| |
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 |
| |
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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% Local Variables: |
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% fill-prefix: " " |
