User-visible changes between 0.6. and 0.6.2:
You now have to define a macro MAYBE_UNUSED (see manual); useful for
suppressing expected "unused variable" warnings.
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
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