ralphw@IUS3.IUS.CS.CMU.EDU (Ralph Hyre) (04/09/88)
In article <5270@sigi.Colorado.EDU> williamm@tramp.Colorado.EDU (Michael Williams) writes: >In article <8804051410.AA12230@wpi.local> DSEAH@WPI.BITNET writes: >>Mail-From: RBREWER created at 4-Apr-88 21:33:09 >> >>[ Cable which allows Apple // to] >>run 2 'sticks. One of my friends back home who owns a II+ has one, and it's The trick is being able to run more than 3 buttons. One idea (although useless if not standardized) is to add an extra chip (say, an 8 line to 3 bit decoder) that will allow a choice of 8 buttons (well, actually 7 since 'no button pressed' needs to be encoded as well). If several buttons are pressed, presumably stuff will be presented as a sequence of 3-bit combinations. Another possibility is to use the bit on the cassette input port for the 4th button, although I think this is usurped on the ][c and //GS -- - Ralph W. Hyre, Jr. Internet: ralphw@ius2.cs.cmu.edu Phone:(412)268-{2847,3275} CMU-{BUGS,DARK} Amateur Packet Radio: N3FGW@W2XO, or c/o W3VC, CMU Radio Club, Pittsburgh, PA