1: User-visible changes between 0.6.1 and 0.6.2:
3: Bug fixes (in particular, gforth-0.6.2 compiles with gcc-3.3)
4: New words: LATEST, LATESTXT (LASTXT deprecated)
5: Operating environment: Added optional support for a C interface built
6: on the ffcall libraries (more portable and powerful than the old
7: one, but still not documented). To use it, the ffcall libraries
8: have to be installed before building Gforth (see INSTALL).
9: Miscellaneous: Gforth-fast now uses static superinstructions (some
10: speedup on some platforms); generally this is transparent (apart
11: from the speedup), but there are lots of command-line options for
12: controlling the static superinstruction generation.
15: User-visible changes between 0.6.0 and 0.6.1:
17: Bug fixes (installation on big-endian machines sometimes did not work)
20: User-visible changes between 0.5.0 and 0.6.0:
22: Changes in behaviour:
24: S": interpreted use now ALLOCATEs the string (they live until BYE).
25: Long word names (512MB on 32-bit systems) are now supported (change to
26: the header format).
27: New threaded code execution method: primitive-centric (allows the
28: following), hybrid direct/indirect threaded (easier portability),
29: with dynamic superinstructions (typical speedup on Athlon: factor
30: 2). New engine gforth-itc for dealing with some potential
31: backwards-compatibility problems (see "Direct or Indirect Threaded?"
32: in the manual).
34: Operating environment:
36: Default dictionary size is now 4MB.
37: Large file support on OSs that support them (i.e., files with more
38: than 2GB on 32-bit machines).
39: Gforth can now deal well with broken pipes in most situations.
40: vi tags files can be built with tags.fs (usage like etags.fs).
41: gforth.el mostly rewritten.
42: New image file format.
44: New words:
46: Keyboard input: EDIT-LINE K-PRIOR K-NEXT K-DELETE
47: File input: SLURP-FILE SLURP-FID
48: Programming tools: ID. .ID WORDLIST-WORDS SIMPLE-SEE
49: Conditional execution: [DEFINED] [UNDEFINED]
50: Defining Words: CONST-DOES> ]]
51: Input stream: PARSE-WORD EXECUTE-PARSING EXECUTE-PARSING-FILE
52: String comparison: STR= STR< STRING-PREFIX?
53: String literals: S\" .\" \"-PARSE
54: Floating point output: F.RDP F>STR-RDP F>BUF-RDP
58: Generalized prims2x.fs into Vmgen (see README.vmgen etc.); used the
59: new capabilities in prims (e.g., automatic handling of the return
60: stack and instruction stream).
63: User-visible changes between 0.4.0 and 0.5.0:
65: Changes in behaviour:
67: There are now two engines: the fast engine (gforth-fast) is at least
68: as fast as gforth in earlier releases; the debugging engine (gforth)
69: supports precise backtracing for signals (e.g., illegal memory
70: access), but is slower by a factor of 1-2.
71: Block files now start at block 0 by default (instead of block 1). If
72: you have block files around, prepend 1024 bytes to convert them, or
73: do a "1 OFFSET !" to establish the old behaviour.
74: Gforth now does not translate newlines to LFs on reading. Instead,
75: READ-LINE now interprets LF, CR, and CRLF as newlines. Newlines on
76: output are in the OSs favourite format.
77: SEE now disassembles primitives (or hex-DUMPs the code if no
78: disassembler is available).
79: >HEAD (aka >NAME) now returns 0 (instead of the nt of ???) on failure.
80: Syntax of prim changed: stack effects are now surrounded by
81: parentheses, tabs are insignificant.
83: Operating environment:
85: Gforth now produces a backtrace when catching an exception.
86: On platforms supporting the Unix 98 SA_SIGINFO semantics, you get more
87: precise error reports for SIGSEGV and SIGFPE (e.g., "stack
88: underflow" instead of "Invalid memory address").
89: Gforth now produces exit code 1 if there is an error (i.e., an
90: uncaught THROW) in batch processing.
91: You can use "gforthmi --application ..." to build an image that
92: processes the whole command-line when invoked directly (instead of
93: through gforth -i).
98: 20% speedup on 604e under powerpc-unknown-linux-gnu,
99: 19%-29% speedup on Celeron with gcc-2.95.
101: New words:
103: Missing ANS Forth words: EKEY EKEY? EKEY>CHAR
104: Timing words: CPUTIME UTIME
105: Vector arithmetic: V* FAXPY
106: FP comparison: F~ABS F~REL
107: Deferred words: <IS> [IS]
108: Nested number output: <<# #>>
109: Exception handling: TRY RECOVER ENDTRY
110: Directory handling: OPEN-DIR READ-DIR CLOSE-DIR FILENAME-MATCH
111: Other: ]L PUSH-ORDER
115: Significant extensions to the manual (added an introduction, among
116: other things), many of them due to a new team member: Neal Crook.
117: Added assemblers and disassemblers for 386, Alpha, MIPS (thanks to
118: contributions by Andrew McKewan, Bernd Thallner, and Christian
119: Pirker). Contributions of assemblers and disassemblers for other
120: architectures are welcome.
123: User-visible changes between 0.3.0 and 0.4.0:
125: Operating environment:
127: Path handling: "." at the start of the path represents the directory
128: the nearest enclosing file resides in (if there is none: the working
129: directory). "~+" indicates the working directory. The default path
130: now has "." in front.
131: gforth and gforthmi is now more GNU standards compliant (wrt
132: command-line options).
133: New command-line-option: --die-on-signal
134: Errors are now directed to stderr.
135: Stdout is now unbuffered, if it is a tty.
136: User input device redirection (for filters) is now possible.
140: Now runs on IRIX (and other MIPS-based systems without linker-flag -d).
141: Direct threading now works on PowerPC (20% speedup on 604e).
142: Better support for m68k (thanks to Andreas Schwab and Jorge Acereda).
143: It is possible to create executables that contain the image (for
144: non-OS systems).
146: Added a lot of embedded control (EC) stuff. Supported controllers and
147: small CPUs are Siemens C16x, 8086, 6502, Mixed-Mode's FPGA MISC, Bernd Paysan's
148: 4stack processor. Not finished: ShBoom alias PSC1000, H8, AVR.
150: New, changed, and removed words:
152: Renamed F0 to FP0 (avoids unexpected behaviour in hex), added aliases
153: SP0, RP0, LP0 (recommended for future use) for S0, R0, L0.
154: Renamed PARSE-WORD into SWORD (PARSE-WORD is used with the meaning of
155: NAME in OpenBoot and dpans6 A.6.2.2008)
156: Added FPICK (suggested by Julian Noble).
157: Added EXCEPTION.
158: S" gforth" ENVIRONMENT? now produces the version-string.
159: Changed representation of types in struct package, and correspondingly
160: changed names.
164: Plain text documentation is now available in doc/gforth.txt.
165: Documentation improvements.
166: Wordlist structure changed.
167: Added mini-oof.
168: Reorganized files: added directories and reorganized many files into
169: them; renamed files into 8.3 format to work with completely broken
170: systems (but there are again some files that won't work there).
171: Bug fixes.
172: Various changes without log information only known as mega-patches.
173: Cross compiler now also supports compilation only for undefined or forward
174: referenced words. Plugins to support some native code generation
175: (for PSC1000).
176: More files in the compat library.
180: User-visible changes between 0.2.1 and 0.3.0:
182: Stack overflow detection by memory protection on most systems
183: (allocation with mmap).
184: gforth.fi is now fully relocatable.
185: fully relocatable images are now easier to create.
186: added primitives K and UNDER+.
187: Win32 support.
188: Improved support for embedded controllers and other deprived environments.
189: some bug fixes.
190: added concept index; other documentation improvements.
194: User-visible changes between 0.2.0 and 0.2.1:
196: Bug fixes
200: User-visible changes between 0.1beta and 0.2.0:
202: Portability and Installation:
204: Support architectures with buggy long longs (alpha-dec-osf).
205: Better support for DOS and other non-Unix systems.
206: Size changes through the command line are passed to the image (and
207: saved with savesystem); the preamble specifies an interpreter and is
208: propagated by save-system.
212: Improved etags support.
213: more.fs allows output paging.
214: Added compat/ directory containing ANS implementations of Gforth features.
215: Added tiny multitasker (tasker.fs).
216: Added two alternatives for object-oriented programming: oof.fs, objects.fs.
217: Added ans-report.fs (reports which words are used from which wordset).
219: New words:
221: Changed POPEN and PCLOSE to OPEN-PIPE and CLOSE-PIPE.
222: Added FORM, ROWS, and COLS.
223: added primitives EMIT-FILE, STDOUT, STDERR.
224: Added TABLEs (case-sensitive wordlists).
225: added POSTPONE,.
226: Added the ability to combine arbitrary interpretation and compilation
227: semantics (INTERPRET/COMPILE:); state-smart words were generally
228: rewritten to use that mechanism.
230: Changes to existing words:
232: EMIT and TYPE now work through file words (and are redirectable).
233: HEADER now stores the compilation wordlist in the header and REVEAL
234: reveals into that wordlist.
235: changed behaviour of SYSTEM (no longer returns wretval, but puts it in
236: $?) added (SYSTEM) ( c_addr u -- wretval wior ).
237: ' and ['] now give an error for compile-only words.
240: Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc.
242: This file is part of Gforth.
244: Gforth is free software; you can redistribute it and/or
245: modify it under the terms of the GNU General Public License
246: as published by the Free Software Foundation; either version 2
247: of the License, or (at your option) any later version.
249: This program is distributed in the hope that it will be useful,
250: but WITHOUT ANY WARRANTY; without even the implied warranty of
251: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.#See the
252: GNU General Public License for more details.
254: You should have received a copy of the GNU General Public License
255: along with this program; if not, write to the Free Software
256: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
259: % Local Variables:
260: % fill-prefix: " "