version 1.4, 1996/12/14 14:33:02
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version 1.8, 2000/09/23 18:20:18
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User-visible changes between 0.2.0 and 0.2.1 |
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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Line 41 changed behaviour of SYSTEM (no longer r
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Line 174 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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% Local Variables: |
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% fill-prefix: " " |