gforth: gforth/peeprules.vmg

updated copyright years

renamed ;CODE-EXEC into LIT-EXECUTE (more general)
static stack caching for faster abi-call and ;abi-code-exec
Usage of VM_JUMP in static superinstructions is now flagged

updated copyright year after changing license notice

updated copyright notices for GPL v3

updated the copyright year on many files
added FSF copyright header to complex.fs fft.fs regexp-test.fs regexp.fs
added fsl-util.fs to update-copyright-blacklist

added STACK_CACHE_DEFAULT_FAST configuration variable
fixed some bugs
added some primitive/state combinations
changes to support up to 8 stack cache registers
Worked around an unresolved bug in kernel/toolsext.fs

updated copyright years for files changed in 2004

minore bugfixes (Makefile.in)
enabled 3-state stack caching for gforth-fast and gforth-native
   bugfixes (EXECUTE and PERFORM; spbREG use)
   explicit register allocation to spb for gforth-native, but not gforth-fast
   Due to the shortest-path algorithm this means that gforth-fast uses only
     S0 and S1, not S2, so we could keep that.
     However, we probably want to use more states etc. for other
     architectures, so we may want to have a way to select different
       cache.vmg and different peeprules.vmg files for different
       archs, builds, and binaries.

fixed one stack-caching bug (N_START_SUPER value), and enabled stack caching

updated copyright years, or added copyright notices.

disabled last native-incompatible superinstruction

activated gforth-native again
some gforth-native bugfixes and changes

some (failed) experiments with stack caching

made classical 1-register stack caching work again (and probably
  general stack caching with non-empty canonical state).  There was a
  subtle bug involving ?DUP-?BRANCH.
made this the default for gforth-fast and turned off anything beyond
deleted the now-unused rewrite_bb().

replaced gforth-prof with $(PROFEXES) in Makedist.in
more stack caching work

fixed various minor issues:
  workaround for HPUX make and our dependence cycles
  suppress warnings for unused variables in superinstructions
  added some superinstructions
  useful code_size metrics for primitives with funny K and J labels
  default metric for --no-dynamic is now cost_nexts

decompile_prim can now deal with static superinstructions

eliminated configure option --dynamic
made configure var no_dynamic_default settable (and documented it)
configure now tests for -fno-crossjumping (instead of -fno-cross-jump).
turn on engine option -fno-inline (eliminates problems with register
allocation on gcc-3.3 on 386 with --enable-force-reg).

gforth-prof is built by default again
default CFLAGS is now "-O2" instead of "-g -O2"
added some static superinstructions
fixed computation of engine/costs.i
minor changes

emptied peeprules.vmg again

bugfix (use of inst-pointer-update left stack items)
bugfix (now no debugging output at superinstruction end)
refactored output-c-tail...

Compiles static superinstructions combined with dynamic superinstructions
added ENDIF to gforth.el

vmgen-related changes in Makefile
fixed FORTHB/prims2x breakage
removed lit_plus
added peeprules.vmg as a place to put superinstructions
testdist now also tests vmgen-ex

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