[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Integer + Applesoft BASIC ROMs

Subject: Re: Integer + Applesoft BASIC ROMs
From: greathierophant@gmail.com
Date: 30 Dec 2005 09:25:15 -0800
Complaints-to: groups-abuse@google.com
In-reply-to: <dp3mi6$bn9$1@unlnews.unl.edu>
Injection-info: g47g2000cwa.googlegroups.com; posting-host=151.203.77.154; posting-account=_TCorg0AAABL_7je0iJ3CFU6Aie90Rpi
Newsgroups: comp.sys.apple2
Organization: http://groups.google.com
References: <1135888379.440240.59390@g44g2000cwa.googlegroups.com> <1135931356.570031.117270@o13g2000cwo.googlegroups.com> <1135951885.223778.58820@g49g2000cwa.googlegroups.com> <dp3mi6$bn9$1@unlnews.unl.edu>
User-agent: G2/0.2
Xref: g2news1.google.com comp.sys.apple2:2768

So, I would not need six switches, but a one single pole, double throw
switch.  What I would do then is to bend up the A12 pin of each 4KB
EPROM and solder a wire from each to the central pole of the switch.
One end pole would be attached to +5v and the other end pole to ground.
 When the switch is in the +5v position, all six address pins will be
active and the upper half of each 4KB will be active.  When the switch
is in the ground position, then only the lower half of each 4KB will be
half.

Follow-Ups:
- Re: Integer + Applesoft BASIC ROMs
  - From: Linards Ticmanis <ticmanis@gmx.de>

References:
- Integer + Applesoft BASIC ROMs
  - From: "Great Hierophant" <great_hierophant@hotmail.com>
- Re: Integer + Applesoft BASIC ROMs
  - From: "Michael J. Mahon" <mjmahon@aol.com>
- Re: Integer + Applesoft BASIC ROMs
  - From: "Great Hierophant" <great_hierophant@hotmail.com>
- Re: Integer + Applesoft BASIC ROMs
  - From: Ed Eastman <noone@nowhere.net>

Prev by Date: Re: "Beneath Apple DOS" now online
Next by Date: Re: Integer + Applesoft BASIC ROMs
Previous by thread: Re: Integer + Applesoft BASIC ROMs
Next by thread: Re: Integer + Applesoft BASIC ROMs
Index(es):
- Date
- Thread