CVS log for gforth/Attic/engine.c

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Current tag: MAIN

jwilke's changes:
Moved many files to other directories
renamed many files
other changes unknown to me.

added double indirect threaded version and making of fully relocatable images.
added gforth-makeimage script for making fully relocatable images.
removed locals bug in if else endif constructs.
added mmap support for machines without MAP_ANON
removed command-line options -c and -o
moved definition of DOES_HANDLER_SIZE from machine.h to forth.h.
added hpux FLUSH_ICACHE in m68k.h
made source words print decimal

go up to 0.3.0

Started to merge in changes made for gforth-EC project.

use mmap for allocating the dictionary and the stacks on some systems
added installdirs target to Makefile.in.
Use mkinstalldirs instead of install-sh -d.
added version-stamp to avoid recompiling everything after changing Makefile.in.
mostly fixed the maiming of words containing '/' in TAGS
added options --clear-dictionary and --debug.

changed image file format:
   now every stack has its own size spec in the image
   size changes through the command line are passed to the image (and
	saved with savesystem)
   added a checksum to protect against incompatible binary/image combinations
	(e.g., direct threaded binary with indirect threaded image)
   the preamble specifies an interpreter and is propagated by save-system

completed double-cell support for machines without a corresponding C int type

?DUP-IF and ?DUP-0=-IF are now supported by primitives
added primitives EMIT-FILE, STDOUT, STDERR
EMIT and TYPE now work through file words
added some code for the BUGGY_LONG_LONG case (not yet complete)
eliminated D! and D@
made DMIN, DMAX, DABS high-level
added compat/control.fs (?DUP-IF etc.)

added more.fs for people with old terminals.
WORDS and SEE now now respect the terminal size.
a lot of reordering in the Makefile, approaching the GNU standards.
factored NAME>STRING out of many words.
use AC_DECL_SYS_SIGLIST test in configure.in.
removed emitcounter (it was not used anyway).
SYSTEM now unpreps and repreps the terminal.
fixed byg in prims2x.fs.
added NEEDS, ?CSP, !CSP.
rewrote ALIAS?.

added config.h support (acconfig.h, changes in Makefile.in)
check for sys_siglist declaration
fixed bug in engine.c:cstr()
prims2x.fs now outputs synclines only in C code

cleaned up engine.c a bit (fewer ifdefs)
added direct threading for the Alpha architecture
timings.sc contains some timings (not well organized)

added copyright headers
changes to loadfilename & co. to make savesystem transparent to
 assertions and ~~

Changed threading ifdefs.
Requires debugging !!!!!!
Perhaps change concepts with LONG_LATENCY
on RISCs.
Added sokoban.fs as a nice little game.

added code.fs (code, ;code, end-code, assembler)
renamed dostruc to dofield
made index and doc-entries nicer
Only words containing 'e' or 'E' are converted to FP numbers.
added many wordset comments
added flush-icache primitive and FLUSH_ICACHE macro
added +DO, U+DO, -DO, U-DO and -LOOP
added code address labels (`docol:' etc.)
fixed sparc cache_flush

Removed BUGS, tried to clean up.

added tilde expansion to primitives
installation now allows parallel versions (like gcc).
The version string is now in only one place

added "system documentation requirements" section to gforth.ds.
added answers for environmental queries for wordsets.
changed W/O file access mode from "w+" to "w".
S" now uses a buffer
BIN is now idempotent
added FILE-STATUS
some other minor changes and bug fixes.

fixed bug in resize ("0 n resize" is now equivalent to "n allocate")
added primitives call-c and strerror
most primitives producing iors now produce error numbers derived from OS error
  numbers (EAGAIN and its kin)
.error now prints OS error messages for OS-derived error numbers.
primitives working with ferror now call clearerr
added a bit of documentation to glocals.fs to satisfy TeX
added definition of CC to Makefile.in again

Added structure support in kernal
fixed bug on dictionary expand (512 wordlist limit)

Moved the stores back to where they belong.
Instead, a new part of NEXT is introduced: NEXT_PO resides at the start of
 the primitive. Additional macros were introduced to accommodate more
 scheduling alternatives. Scheduling is determined by two new flags,
 -DLONG_LATENCY and -DAUTO_INCREMENT.

Changes to make creation of info files possible
more documentation
included unistd.h in engine.c

Reimplemented [IF] [ELSE] [THEN] etc.
Corrected a bug concerning redefinitions in Kernal
Added config info for HP-PA
Added replacement for rint

Reorganized configuration: configure is now created by autoconf from
configure.in; I still left it in the CVS repository because not
everyone has autoconf. decstation.h renamed to mips.h and apollo68k to
m68k. Added general 32bit.h description, which the other machine
descriptions use. Created/copied replacement files install-sh memcmp.c
memmove.c select.c (carved out from ecvt.c) strtol.c
strtoul.c. Bytesex is now handled by configure.

Deciding the threading method is now done in machine.h, this should
also be done for USE_TOS and USE_FTOS.

Added automatic glossary entry transfer from primitives to the texi file.
renamed gfoprth.texi to gforth.ds.
fixed a few minor bugs.
changed the behaviour of locals scoping when encountering an unreachable BEGIN.
made UNREACHABLE immediate

Updated ToDo and INSTALL; Wrote README; Lifted COPYING and getopt*
from other packages;  removed $Id$ lines from some files

Fixed some bugs and eliminated some warnings

Made DTC on HPPA run!
Changed -DDEBUG output to go to stderr

made declaring explicit register variables available for all machines
in machine.h; threw out such hacks in engine.c for the 386.
renamed endian to bigendian

cleaned up NEXT macros; provided for CISC (united) and RISC (split) versions
cstr is now a function that can process arbitrarily long strings

Added options to allow good register scheduling on i386
added blocks

make now generates both images
the image names were changed
added C-level support for deferred words (dodefer)
made 2>r 2r> 2r@ 2rdrop primitives
some tuning of the outer interpreter; eliminated many words based on
 counted strings
Replaced the hash function with one that works better for larger tables

Moved setjmp from engine to go_forth, because the socalled "globbered"
variables where saved in memory (and this slows down everything).
Added global up0 for security (up is globbered).

Added restrict's functionalitz to cross.fs

removed all occurency of cell+ name>, because the bug in name> is
fixed.

Added a dusty workaround at the end of prims2x.fs, because of
strange exceptions.

signals are now translated into THROWs
A number of bug fixes (make a diff of BUGS for details)
added assert.fs and debugging.fs
made .s nicer
keep names of included files (in loadfilename) and print them upon error

Made gray warnings-off-compatible
Added (type) as primitive

Changed include sys/unistd.h to unistd.h

added an experimental hash table (search/order.fs)
allowed the user to select caps-stored names or even case-
sensitive search.
Made gforth.texi compilable.

Fixed problem with ?dup
Deleted noop output like sp+=0 from prims2x.fs
Made wordinfo.fs work with DTC on i386
Added a faster (???) relocater

local variables
rewrote primitives2c.el in Forth (prims2x.el)
various small changes
Added Files:
 	from-cut-here gforth.el gforth.texi glocals.fs gray.fs
 	locals-test.fs prims2x.fs

Added direct threading for R3/4000. Still needs cache flush.
Added direct threading for R3/4000. Needs still cache flush.

Make ca local to primitive to avoid constant register usage.

primitives: key?, ms and time&date added
engine.c: time.h for ms and time&date included
bugs fixed to run tt.pfe

Initial revision