Annotation of gforth/NEWS.vmgen, revision 1.2

1.2     ! anton       1: User-visible changes between 0.6.[01] and 0.6.2:
        !             2: 
        !             3: You now have to define a macro MAYBE_UNUSED (see manual); useful for
        !             4:   suppressing expected "unused variable" warnings.
        !             5: 
1.1       anton       6: User-visible changes between 0.5.9-20020901 and 0.6.0:
                      7: 
                      8: Support for upward-growing stacks (see "Stack growth direction" in the
                      9:   manual)
                     10: New macro in output: IMM_ARG.
                     11: New input flag: include-skipped-insts (currently pointless).
                     12: Lazy loading and eager storing of stack items in superinstructiuons;
                     13:   this reduces register pressure (useful on 386), but causes compiler
                     14:   warnings about unused variables.
                     15: 
                     16: 
                     17: User-visible changes between 0.5.9-20020822 and 0.5.9-20020901:
                     18: 
                     19: The store optimization is now disabled by default, but can be enabled
                     20: by the user.  Documentation for this optimization is also new.
                     21: 
                     22: 
                     23: Use-visible changes between 0.5.9-20010501 and 0.5.9-20020822:
                     24: 
                     25: There is now a manual (in info, HTML, Postscript, or plain text format).
                     26: 
                     27: There is the vmgen-ex2 variant of the vmgen-ex example; the new
                     28: variant uses a union type instead of lots of casting.
                     29: 
                     30: Both variants of the example can now be compiled with an ANSI C
                     31: compiler (using switch dispatch and losing quite a bit of
                     32: performance); tested with lcc.
                     33: 
                     34: There are several changes in the way you have to define macros (see
                     35: node/section "Changes" in the manual).  I recommend keeping the
                     36: gforth-0.5.9-20010501 version until you have completed the changes
                     37: (note that you can have several versions of Gforth installed at the
                     38: same time).
                     39: 
                     40: 
                     41: % Local Variables:
                     42: % fill-prefix: "  "

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