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From: bright@dataio.UUCP
Newsgroups: net.micro.pc
Subject: Re: WORD -- GROSS BUGS (?)
Message-ID: <997@dataioDataio.UUCP>
Date: Wed, 14-May-86 12:45:07 EDT
Article-I.D.: dataioDa.997
Posted: Wed May 14 12:45:07 1986
Date-Received: Sun, 18-May-86 12:13:28 EDT
References: <1371@unc> <753@kontron>
Reply-To: bright@dataio.UUCP (Walter Bright
Organization: Data I/O Corp., Redmond WA
Lines: 11

In article <753@kontron> cramer@kontron writes:
>Amen to the XON/XOFF problem.  PC-DOS provides NO built-in XON/XOFF support.
>I would very much like to have an installable device driver for PC-DOS that
>allowed a C program to open COM1 or COM2 just like any other device, but
>no one seems to build one.

PC-DOS also doesn't do interrupt driven I/O to COM1. This makes it impossible
to write 'well-behaved' programs when you need interrupted I/O instead
of polled I/O. The BIOS doesn't support it either, which is a mystery
since all the hardware support for it is in place, and it's easy code
to write.