File:  [gforth] / gforth / NEWS.vmgen
Revision 1.1: download - view: text, annotated - select for diffs
Sun Mar 9 22:12:29 2003 UTC (16 years ago) by anton
Branches: MAIN
CVS tags: v0-6-2, v0-6-1, HEAD
added NEWS.vmgen

User-visible changes between 0.5.9-20020901 and 0.6.0:

Support for upward-growing stacks (see "Stack growth direction" in the
New macro in output: IMM_ARG.
New input flag: include-skipped-insts (currently pointless).
Lazy loading and eager storing of stack items in superinstructiuons;
  this reduces register pressure (useful on 386), but causes compiler
  warnings about unused variables.

User-visible changes between 0.5.9-20020822 and 0.5.9-20020901:

The store optimization is now disabled by default, but can be enabled
by the user.  Documentation for this optimization is also new.

Use-visible changes between 0.5.9-20010501 and 0.5.9-20020822:

There is now a manual (in info, HTML, Postscript, or plain text format).

There is the vmgen-ex2 variant of the vmgen-ex example; the new
variant uses a union type instead of lots of casting.

Both variants of the example can now be compiled with an ANSI C
compiler (using switch dispatch and losing quite a bit of
performance); tested with lcc.

There are several changes in the way you have to define macros (see
node/section "Changes" in the manual).  I recommend keeping the
gforth-0.5.9-20010501 version until you have completed the changes
(note that you can have several versions of Gforth installed at the
same time).

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