Message-ID:	<3454AFBB.74F8@post.comstar.ru>
Date:	Mon, 27 Oct 1997 18:14:03 +0300
From:	Dim Zegebart <zager AT post DOT comstar DOT ru>
Reply-To:	zager AT post DOT comstar DOT ru
Organization:	Comstar Ltd.
MIME-Version:	1.0
To:	DJGPP Mail List <djgpp AT delorie DOT com>
Subject:	ANNOUNCE : DZComm v0.4

Hi,
I'm glad to announce the new version of my communication lib for
Allegro - DZComm v0.4

Versions described : v0.2;v0.3;v0.4;
--

DZComm version 0.2 (26.03.97)

- modem status and line status placed into read queue.
  Since comm_port_get() returned *packed* value, do next :

  c=comm_port_get();
  if (q_reg_(c)==DATA_BYTE)
   { ch=data_(c);
     ...
   }

  if q_reg()=LSR_BYTE then next call data_() will return
  status byte from LSR.

  if q_reg()=MSR_BYTE then next call data_() will return
  status byte from MSR.

  if q_reg()=DATA_BYTE then next call data_() will return
  data byte from RDR.

- added documentation on FIFO queue routines. See dzcomm.txt
  Note : it's not documentation on 16550 FIFO feature !

  Source file for this functions is /src/queue.c

DZComm ver 0.3 (19.05.97)

- serious bug fixed. This bug coused system crash then it runs on slow
PC
  at high boud rate.

- modem status and line status removed from read queue.
  Instead of it you may provide your own handlers for this events.

- comm_port_get() - removed from library. Use comm_port_test() instead.
  Data returned by comm_port_test() is not packed now, so you never need
  q_reg() call.

- XON/XOFF flow control added.

- add comm_port_load_settings(). Now you may load settings from file.

- add comm_port_reinstall(). Change any port settings and apply it at
  runtime.

- add modem_hangup().

DZComm ver 0.4 (30.09.07)

- RTS/CTS flow control added

- adding byte counters for in/out data streams

- adding some new settings to be recognized by comm_port_load_settings()

- hardcoded defaults I/O address used then BIOS have no data (this may
  occures on notebooks and brand named PCs)

- makefile changed. Not needed to rebuild entire liballeg now :)
-- 
Regards,
Dim Zegebart, 
Moscow Russia.
Ghostly basement : http://www.geocities.com/siliconvalley/pines/7817
DZCOMM - comm library for Allegro

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