[comp.sys.ibm.pc.hardware] IBM's Game Port

m1tdg00@fsrcs1.fed.frb.gov (Taegan D. Goddard) (06/27/90)

Check out the program called GAMEPORT below:

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Introducing...
 	              The Home Control Primer disk

       A shareware compilation disk for IBM PCs and compatibles.

The Home Control Primer disk is an excellent introduction to computerized
home automation.  Have your computer turn your lights and appliances on and
off.  Build yourself a computerized home.  Someday all homes will be 
intelligent.

(Note: Two of these programs requires the X-10 Powerhouse computer interface)

The Home Control Primer consists of three independent programs:

 * SENDX10 *    Send X-10 commands to your X-10 Powerhouse computer interface
                from the DOS command line or from batch files.  
		Registration only $10

 * SYNCHX10 *   Synchronize the clock in the X-10 Powerhouse computer interface
                with that of your PC.  Registration only $10

 * GAMEPORT *   Hook up light, temperature and other sensors to your PC 
		gameport.  Registration only $5

The Home Control Primer is distributed by the Shareware method.  If you like
a program and learn something from its use, you are on your honor to pay the
author a small registration fee.

The Home Control Primer is available from many user groups and shareware
Many of these organizations may charge a small fee for copying the disk,
but the user must still pay the author if he or she likes the programs after
trying them.

The Home Control Primer is available from the following distributors:

	PC-SIG (as disk #2169)    (408) 730-9291
	Velvet Software           (203) 923-3311
	MicroTechnology           (609) 426-0506
	Winner's Edge             (801) 825-4229
	Williams Software         (317) 452-0725
	Gofer Software            (304) 485-4292
	CWI Information           (800) 777-5636

The Home Control Primer is only distributed as a full disk and therefore is
not available on BBSs.  Also included on the disk are many text files 
packed with information about computerized home control.

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dlow@hpspcoi.HP.COM (Danny Low) (06/28/90)

>>Game port is another name for a joystick controller. For some strange
>>reason IBM reserved an "interrupt" location for a joystick on the PC.
>>Maybe it had something to do with Flight Simulator also being
>>a Microsoft product. :-)
>
>What interrupt location?  Checking the interrupt assignments for the PC
>(with 1 8259 interrupt controller) and the AT (with 2 8259 interrupt
>controllers cascaded on interrupt2), there is no assignment for the
>game port/joystick controller.  And there is no interrupt setting on
>none of my 2 joystick boards either.

Note that "interrupt" is in quotes. This is a common literary
convention to indicate that the actual meaning is NOT being used. 
Joysticks are not interrupt devices. There are just locations assigned 
in the I/O address space for the stick controller to put 
data for anyone to read.

			   Danny Low
    "Question Authority and the Authorities will question You"
	   Valley of Hearts Delight, Silicon Valley
     HP SPCD   dlow%hpspcoi@hplabs.hp.com   ...!hplabs!hpspcoi!dlow