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From: markg@amd.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: How do you flush the PC's keyboard?
Message-ID: <4071@amd.UUCP>
Date: Wed, 3-Jun-87 14:25:41 EDT
Article-I.D.: amd.4071
Posted: Wed Jun  3 14:25:41 1987
Date-Received: Sat, 6-Jun-87 02:23:58 EDT
References: <747@thumper.UUCP> <3320019@hpsrlc.HP.COM>
Reply-To: markg@amd.UUCP (Mark Gorlinsky)
Organization: Advanced Micro Devices
Lines: 28

In article <3320019@hpsrlc.HP.COM> darrylo@hpsrlc.HP.COM (Darryl Okahata) writes:
>In comp.sys.ibm.pc, tr@thumper.UUCP writes:
>>
>     With assembler, you use two DOS functions (I don't remember the
>function numbers): one which checks to see if a keyboard character is
>available, and another to read a keyboard character.  From here, it's
>simple (given in C pseudocode):
>
>	while (character_available())
>		read_character();	/* throw read characters into the
>					   bit bucket */
>

The shortest way (from the view point of your own program) is to use
DOS Function 0Ch with AL=0.  This function will clear the entire keyboard
buffer and only requires two lines of assembly or one line of C code.

examples:
	(assembly)	mov ax,0C00h
			int 21h

	(C)		bdos(0x0C, 0, 0);   (Turbo C, MSC,or Lattice) 

-- 
 Mark Gorlinsky - AMD Processor Products Division/APPS SQA
 UUCP: {decwrl,ihnp4,allegra}!amd!markg
 AT&T: (408) 982-7811
 DISCLAIMER: My opinions are mine, not my employers.