Now the transition from 1.3.x to 1.4.0 takes place

1) 1.3.90: make new directory structure, and use segments:

   - include directory overhauled. 20mar1997

   - kernel now assembles standalone (with xa >= 2.1.3)

   - fsdev now assembles standalone (with xa >= 2.1.3)

   - C64 is working now (w/o fsiec)

   - removed many global variables (mostly from kernel)

   - made fsiec assemble, checked C64 serial and parallel (fixed a bug
     in the serial code)

   - now all architectures (c64, csa65, gecko) are converted,
     although only c64 is tested now.

   - all apps are converted, although not tested

2) 1.3.91: cleanup more archtecture dependend stuff

   - moved hardware stuff from oa1si.a65 to arch/*/devices/kinit.a65
     C64 works again

   - put Gecko fsiec back to mainstream fsiec. added getif and freif
     to fsiec device interface

   - divided console code into hardware independent (devices/console.a65)
     and hardware dependent (arch/*/devices/con_*.a65) code.
     C64 should work (does on VICE), csa also, but this is not tested.
     C64 cannot give the F1 switch key with shift+ctrl (bug!)

   - CS/A architecture (with ROMTEST) works, except for the console

   - CS/A console works, when not interruptable. 

3) 1.3.92: dynamic memory management / relocatable loader

   - added memory management from slip to stdlib. It is initialized
     from the kernel on startup. New GETPID system call added to allow
     owner identification for memory blocks

   - new zeropage memory management in stdlib. Added o65 loader from xa 
     to stdlib

   - made loader work. loads o65 files now, but no undefined symbols
     (like KERNEL and STDIOADDR) are relocated.

4) 1.3.93: started kernel rewrite...

   - removed: memory management, signals

   - added error state byte for streams (untested)

   - rewrote env handling to allow threads etc. Use different tables
     removed send/(x)receive, setirq, getenv, freenv, setblk, wterm, getinfo,
     treset, read/write and signal from kernel in this process.

   - reimplemented send/receive/xreceive.

   - implemented signals

   - reimplemented STACKCOPY option.

   - started working on CS/A65 MMU architecture

   - implemented SLOCK and RENICE kernel calls

   - cleaned up kernel init routines, added zerotest.a65 and ramtest.a65

   - worked on SEND/RECEIVE for MMU.

   - real memory handling for MMU

   - cleanup device handling code (with and w/o MMU)
     but: in CS/A65, non-ROM-started devices don't work!

   - fixed a bug in setnam (device handling kernel code).

   - moved [load|save][thread|task] all to setthread, which is
     now completely in kenv

   - runs on the Gecko now.

   - made all calls to memtask from JSR to JMP (for NOMMU, keep a 
     dummy for CS/A). return from interrupt needs special care, though.

   - The debugging speed when running on the xcsa emulator is impressing,
     compared to the time to find an error on the real machine.....
     CSA debugging done (multitasking works, video device too, so works
     send/receive)

5) 1.3.94: support code and glue fixes

   - console and serial devices support SCE_PUSH (console only) and
     SCE_BRK bits. fsdev and fsiec support the error code bits SCE_?ERRM.

   - shortened CS/A65 part a bit to get more kernel space

   - sbrk for CS/A65, GETINFO (short version...)

   - SHORTRAMTEST - only check one value besides MEMINIVAL, probably 
     MEMINIVAL ^ $ff, to still allow mirrorcheck in CS/A

   - fixed nasty bug in CS/A65 setthread.

   - removes stream read/write counter handling from FORK and from
     ROM init. Introduced new ROM file format.
     Introduced "init" process to start ROM processes with command line
     FORK now copies the PCBUF to the started process, which has to releas
     the SENDBUF semaphore after reading the command line

   - removed stdlib calls from most sysapps (fs*, mon)
     Also put "sh" from "apps" to "sysapps" and renamed it to "mon".
     So far there is still a link from "apps/sh" to "sysapps/mon",
     as long as there is no new shell.

   - included fileformat.html (for o65 files) and lib6502.html for the
     new stdlib in the doc directory.
     moved the "stdlib" directory to "oldlib"

   - moved libsave to THREADSAVE, TASKSAVE and ENVSAVE
     all are now cleared on respective allocation

   - removed bogus kernel calls. updated kernel docs (kernel.html).
     improved GETINFO call and adapted the Shell code for it.

   - fixed small bugs in fork and kill. (revealed by GETINFO...)

   - SLOCK (scheduler lock) is optional now.

   - reordered error codes

   - made some more stuff for the proto directory

   - when a process terminates and the parent waits for sigchld,
     TT_NTHREADS is set to -1 and sigchld is sent. If parent is killed
     or checkchld is called from parent, then task is freed.
     checkchld returns the process ID of the terminated child

   - init process now has restart ability - a ROM task can be restarted
     when the task has terminated.

   - fixed a bug in the console code that didn't check for E_NUL
     in any case...

   - also fixed a little bug in asetxy...

   - kernel seems to work on real CS/A65 too now...
     (fixed a little bug in BRK handling of csa65/devices/oa1sd.a65)

6) 1.3.95: stdlib handling 

   - SUSPEND kernel call renamed to YIELD

   - realloc added to lib6502

   - implemented file handling, signal handling, semaphores
     according to lib6502 specs

   - changed command line parameter format for ROM

   - fixed a bug in arch/c64/kernal/kenv.a65 for stack address overflow
     with more than 4 threads.

   - stdlib handling
     When task is killed (from other task, or BRK), how to clear all
     lib resources? Call signal exit handler on _any_ exit, and lib
     clears then?

   - implemented almost all (except network and environment) feasible
     lib6502 calls.

   - moved the lib6502 to version 0.5

   - init now boots (i.e. loads and starts) o65 file from lib6502 :-))

   - exec now passes command line parameter to program

   - dup works with stdio

   - added cwd to lib6502 definition

   - changed names from "oa1*" to more descriptive names

   - lsh parses command line and redirects stdio

   - lsh now executes builtin commands as well as external commands :-))

   - streams are now 64 instead of 128 byte long (gives double the number
     of streams on a C64)

   - FSIEC opens files now without ",P"

   - lsh can now combine stdout and stderr with ">!" or "!>! redirectors.
     replacing ">" with ">>" does an append.

   - giving the shell a filename should make it read from the file and 
     put it into quiet mode (untested)

   - shell now receives sigchld from started tasks

   - added sigchld to signal definition in lib6502

   - added yield to lib6502 definition

   - shell understands "&" and ";"

   - added some simple file utilities (rmdir, mkdir, rm, format, chkdsk)
     but more info has to be put here.

   - added simple "ls" command

   - added "cat" command

   - changed return values for fread/fwrite

   - added "mv" command (only to same device)

   - forkto now copies the cwd to the child process, which makes it 
     run programs from relative path.

6) 1.3.96: inet handling 

   - mon and slipd can now also be run from lsh

   - slipd now works as before. It now takes its IP address from the first 
     packet received.

   - implemented traceroute protocol: ICMP port unreachable for udp

   - some TCP bugfixes: does not eat up tcbs anymore when errorneous packets
     arrive while listening. Detected some weird end of connection bug
     triggered by high traffic...

   - seem to have fixed the all end-of-connection problems.

   - added one more virtual terminal to C64 console device

   - slipd seems to be fixed...? 
     slipd can now redirect its stderr (away from stdout and to a file given
     on the command line) -> rom startable.

   - wwwsrv prefixes a file with the content-type header, depending on file
     extension.

   - fixed a nasty old bug in ackxmit (slipd)

   - added flib2osa_[rw] calls to stdlib to map from lib6502 fileno to 
     OS/A65 stream.

   - rsh working

   - simple tlogin

   - fixed bugs in lib6502 exec and bcleanpida code

   - tlogin now sends the telnet WILL ECHO and WON'T ECHO options to 
      hide password

6) 1.3.97: lib6502 inet handling 

   - fixed a bug in lib6502 fopendir

   - made fstcp working again

   - console is in no-echo mode by default. mon now switches console to 
     fullscreen mode with TC_ECHO

   - telnet works

   - getenv/putenv work

   - shell now has "echo" and "set" builtins, including variable substitution

   - added "getos" lib6502 call and "uname" shell builtin.

   - listen works

   - rewrote fcntl to use checkfd_* - makes it shorter and works with STDIO

   - fixed a really nasty bug that decreased system stack when receiving
     a message that is already prepared.

   - implemented lib6502 httpd, and lib6502 accept/listen works

   - fixed a bug in slipd that killed it when no memory available. Now a
     random connection is closed to get more memory.

   - mon now recognizes STDOUT E_NUL as break condition, which makes
     it stop much faster when it is in an endless loop... :-)

   - loader does now align, and relocates LIB6502 and OSA2KERNEL, and calls
     "main" to start

   - overhauled docs

6) 2.0.0-pre*: ports and bugfixes

   - added CBM8x96 support

   - added support for PET with 32k RAM


TODO: 

   - tons of bugfixes