[gforth] / gforth / NEWS  

gforth: gforth/NEWS


1 : anton 1.9 User-visible changes between 0.5.0 and 0.6.0:
2 :    
3 : anton 1.10 added words: EDIT-LINE ID. .ID CONST-DOES> K-PRIOR K-NEXT K-DELETE
4 :     SLURP-FILE SLURP-FID WORDLIST-WORDS SIMPLE-SEE [DEFINED] [UNDEFINED]
5 :     PARSE-WORD S\" .\" \"-PARSE STR= STR< STRING-PREFIX? EXECUTE-PARSING
6 :     EXECUTE-PARSING-FILE F.RDP F>STR-RDP F>BUF-RDP
7 :    
8 :     Large file support on OSs that support them (i.e., files with more
9 :     than 2GB on 32-bit machines).
10 :    
11 : anton 1.11 Gforth can now deal with well with broken pipes in most situations.
12 :    
13 : anton 1.10 Default dictionary size is now 4MB.
14 :    
15 :     vi tags files can be built with tags.fs (usage like etags.fs).
16 :    
17 :     gforth.el mostly rewritten.
18 :    
19 :     S": interpreted use now ALLOCATEs the string (they live until BYE).
20 : anton 1.9
21 :     Long word names (512MB on 32-bit systems) are now supported (change to
22 :     the header format).
23 :    
24 :     Generalized prims2x.fs into Vmgen (see README.vmgen etc.); used the
25 :     new capabilities in prims (e.g., automatic handling of the return
26 :     stack and instruction stream).
27 :    
28 :     New threaded code execution method: primitive-centric (allows the
29 :     following), hybrid direct/indirect threaded (easier portability),
30 :     with dynamic superinstructions (typical speedup on Athlon: factor
31 : anton 1.10 2). New engine gforth-itc for dealing with some potential
32 : anton 1.9 backwards-compatibility problems (see "Invoking Gforth" in the
33 :     manual).
34 : anton 1.10
35 :     New image file format.
36 :    
37 : anton 1.9
38 : anton 1.8 User-visible changes between 0.4.0 and 0.5.0:
39 :    
40 :     Changes in behaviour:
41 :    
42 :     There are now two engines: the fast engine (gforth-fast) is at least
43 :     as fast as gforth in earlier releases; the debugging engine (gforth)
44 :     supports precise backtracing for signals (e.g., illegal memory
45 :     access), but is slower by a factor of 1-2.
46 :     Block files now start at block 0 by default (instead of block 1). If
47 :     you have block files around, prepend 1024 bytes to convert them, or
48 :     do a "1 OFFSET !" to establish the old behaviour.
49 :     Gforth now does not translate newlines to LFs on reading. Instead,
50 :     READ-LINE now interprets LF, CR, and CRLF as newlines. Newlines on
51 :     output are in the OSs favourite format.
52 :     SEE now disassembles primitives (or hex-DUMPs the code if no
53 :     disassembler is available).
54 :     >HEAD (aka >NAME) now returns 0 (instead of the nt of ???) on failure.
55 :     Syntax of prim changed: stack effects are now surrounded by
56 :     parentheses, tabs are insignificant.
57 :    
58 :     Operating environment:
59 :    
60 :     Gforth now produces a backtrace when catching an exception.
61 :     On platforms supporting the Unix 98 SA_SIGINFO semantics, you get more
62 :     precise error reports for SIGSEGV and SIGFPE (e.g., "stack
63 :     underflow" instead of "Invalid memory address").
64 :     Gforth now produces exit code 1 if there is an error (i.e., an
65 :     uncaught THROW) in batch processing.
66 :     You can use "gforthmi --application ..." to build an image that
67 :     processes the whole command-line when invoked directly (instead of
68 :     through gforth -i).
69 :    
70 :     Ports:
71 :    
72 :     AIX.
73 :     20% speedup on 604e under powerpc-unknown-linux-gnu,
74 :     19%-29% speedup on Celeron with gcc-2.95.
75 :    
76 :     New words:
77 :    
78 :     Missing ANS Forth words: EKEY EKEY? EKEY>CHAR
79 :     Timing words: CPUTIME UTIME
80 :     Vector arithmetic: V* FAXPY
81 :     FP comparison: F~ABS F~REL
82 :     Deferred words: <IS> [IS]
83 :     Nested number output: <<# #>>
84 :     Exception handling: TRY RECOVER ENDTRY
85 :     Directory handling: OPEN-DIR READ-DIR CLOSE-DIR FILENAME-MATCH
86 :     Other: ]L PUSH-ORDER
87 :    
88 :     Miscellaneous:
89 :    
90 :     Significant extensions to the manual (added an introduction, among
91 :     other things), many of them due to a new team member: Neal Crook.
92 :     Added assemblers and disassemblers for 386, Alpha, MIPS (thanks to
93 :     contributions by Andrew McKewan, Bernd Thallner, and Christian
94 :     Pirker). Contributions of assemblers and disassemblers for other
95 :     architectures are welcome.
96 :    
97 :    
98 : anton 1.6 User-visible changes between 0.3.0 and 0.4.0:
99 :    
100 :     Operating environment:
101 :    
102 :     Path handling: "." at the start of the path represents the directory
103 :     the nearest enclosing file resides in (if there is none: the working
104 :     directory). "~+" indicates the working directory. The default path
105 :     now has "." in front.
106 :     gforth and gforthmi is now more GNU standards compliant (wrt
107 :     command-line options).
108 :     New command-line-option: --die-on-signal
109 :     Errors are now directed to stderr.
110 :     Stdout is now unbuffered, if it is a tty.
111 :     User input device redirection (for filters) is now possible.
112 :    
113 :     Ports:
114 :    
115 :     Now runs on IRIX (and other MIPS-based systems without linker-flag -d).
116 :     Direct threading now works on PowerPC (20% speedup on 604e).
117 :     Better support for m68k (thanks to Andreas Schwab and Jorge Acereda).
118 :     It is possible to create executables that contain the image (for
119 :     non-OS systems).
120 : pazsan 1.7
121 :     Added a lot of embedded control (EC) stuff. Supported controllers and
122 :     small CPUs are Siemens C16x, 8086, 6502, Mixed-Mode's FPGA MISC, Bernd Paysan's
123 :     4stack processor. Not finished: ShBoom alias PSC1000, H8, AVR.
124 : anton 1.6
125 :     New, changed, and removed words:
126 :    
127 :     Renamed F0 to FP0 (avoids unexpected behaviour in hex), added aliases
128 :     SP0, RP0, LP0 (recommended for future use) for S0, R0, L0.
129 :     Renamed PARSE-WORD into SWORD (PARSE-WORD is used with the meaning of
130 :     NAME in OpenBoot and dpans6 A.6.2.2008)
131 :     Added FPICK (suggested by Julian Noble).
132 :     Added EXCEPTION.
133 :     S" gforth" ENVIRONMENT? now produces the version-string.
134 :     Changed representation of types in struct package, and correspondingly
135 :     changed names.
136 :    
137 :     Miscellaneous:
138 :    
139 :     Plain text documentation is now available in doc/gforth.txt.
140 :     Documentation improvements.
141 :     Wordlist structure changed.
142 :     Added mini-oof.
143 :     Reorganized files: added directories and reorganized many files into
144 :     them; renamed files into 8.3 format to work with completely broken
145 :     systems (but there are again some files that won't work there).
146 :     Bug fixes.
147 :     Various changes without log information only known as mega-patches.
148 : pazsan 1.7 Cross compiler now also supports compilation only for undefined or forward
149 :     referenced words. Plugins to support some native code generation
150 :     (for PSC1000).
151 : anton 1.6 More files in the compat library.
152 :    
153 :    
154 :    
155 : anton 1.5 User-visible changes between 0.2.1 and 0.3.0:
156 :    
157 :     Stack overflow detection by memory protection on most systems
158 :     (allocation with mmap).
159 :     gforth.fi is now fully relocatable.
160 :     fully relocatable images are now easier to create.
161 :     added primitives K and UNDER+.
162 :     Win32 support.
163 :     Improved support for embedded controllers and other deprived environments.
164 :     some bug fixes.
165 :     added concept index; other documentation improvements.
166 :    
167 : anton 1.6
168 :    
169 : anton 1.5 User-visible changes between 0.2.0 and 0.2.1:
170 : anton 1.4
171 :     Bug fixes
172 :    
173 : anton 1.6
174 :    
175 : anton 1.5 User-visible changes between 0.1beta and 0.2.0:
176 : anton 1.1
177 : anton 1.3 Portability and Installation:
178 :    
179 : anton 1.1 Support architectures with buggy long longs (alpha-dec-osf).
180 : anton 1.3 Better support for DOS and other non-Unix systems.
181 : anton 1.1 Size changes through the command line are passed to the image (and
182 :     saved with savesystem); the preamble specifies an interpreter and is
183 :     propagated by save-system.
184 : anton 1.3
185 :     Tools:
186 :    
187 :     Improved etags support.
188 :     more.fs allows output paging.
189 :     Added compat/ directory containing ANS implementations of Gforth features.
190 :     Added tiny multitasker (tasker.fs).
191 :     Added two alternatives for object-oriented programming: oof.fs, objects.fs.
192 :     Added ans-report.fs (reports which words are used from which wordset).
193 :    
194 :     New words:
195 :    
196 :     Changed POPEN and PCLOSE to OPEN-PIPE and CLOSE-PIPE.
197 :     Added FORM, ROWS, and COLS.
198 :     added primitives EMIT-FILE, STDOUT, STDERR.
199 :     Added TABLEs (case-sensitive wordlists).
200 :     added POSTPONE,.
201 :     Added the ability to combine arbitrary interpretation and compilation
202 :     semantics (INTERPRET/COMPILE:); state-smart words were generally
203 :     rewritten to use that mechanism.
204 :    
205 :     Changes to existing words:
206 :    
207 :     EMIT and TYPE now work through file words (and are redirectable).
208 : anton 1.1 HEADER now stores the compilation wordlist in the header and REVEAL
209 :     reveals into that wordlist.
210 : anton 1.3 changed behaviour of SYSTEM (no longer returns wretval, but puts it in
211 :     $?) added (SYSTEM) ( c_addr u -- wretval wior ).
212 : anton 1.1 ' and ['] now give an error for compile-only words.
213 : anton 1.3
214 : anton 1.6
215 :     % Local Variables:
216 :     % fill-prefix: " "

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