Blogs

Explore an AP-64, with and without firmware

Submitted by S.Elliott on March 8, 2023 - 8:49pm

There are a lot of AP-64 variants around, so let's explore this clone.  Nexo Distribution sold it to me as "APX-EPROM-1" in March 1988.

First, here's a close look at the firmware socket and booster circuit.

Tags: 
EPROM
AP64

Apple fest 1983 40th Anniversary Poster

Submitted by Khaibitgfx on March 8, 2023 - 3:35pm

The following file is standard poster size, and can be printed by whatever print shop nearest you.

 

Mysterious origins of the AP-64 EPROM programmer

Submitted by S.Elliott on March 6, 2023 - 9:18pm

Last December I posted in Apple II Cards about the utterly bizarre firmware of my APX-EPROM-1 Programmer, a clone of the AP-64e that was sold to me by Nexo Distribution in the 1980s.  The APX firmware changes, depending on which slot it's installed in:

 

Tags: 
EPROM
AP64

PRINTDCI quick-and-easy ASM printing routine

Submitted by S.Elliott on March 2, 2023 - 8:43pm

Synopsis

This short routine makes it easy to print strings from assembly code, or even from the mini-assembler.  (Especially in the Enhanced monitor, which lets you enter ASCII characters using a ` prefix.)

 

Detail

Assemblers like EDASM have a directive called DCI that encodes an ASCII string in such a way that the end of the string can be distinguished by checking its high bit.  The DCI statement converts your string into ASCII bytes so that most characters have the high bit cleared, but the last character has its high bit set.

Tags: 
asm

ACHUS software based multi-voice synthesizer

Submitted by S.Elliott on March 1, 2023 - 5:47pm

ACHUS was a multi-voice software synthesizer I tried to develop for Nibble magazine in the 1980s.

Tags: 
sound

INFOCOM Wishbringer and Leather Babes of Phobos

Submitted by Khaibitgfx on March 1, 2023 - 3:25pm

Wishbringer and Leather Babes

Infocom Diskette Sleeve and Floppy Label variety.

 

Some SL5 ROM-dump failures and successes

Submitted by S.Elliott on February 27, 2023 - 4:37pm

Once again logging discussion of the SL5 dongle from Facebook.  In my previous blogpost I saved "permalinks" to that discussion on Facebook, but it has proven frustratingly useless because Facebook automatically scrolls away from the linked content when a user opens a permalink.  (It's the same issue that occurs with Facebook notifications, which employ permalinks, because the platform tries to engage users by leading them to "top comments" or "relevant posts" without regard for what was requested.)

Jan 17

Tags: 
dongle

inCider magazine

Submitted by Khaibitgfx on February 27, 2023 - 3:42pm

For all those who remember this magazine and have software released by them.

Printable floppy sleeves with inCider branding.

Also included an updated version of Online Systems, this file has been previously uploaded, this file is an updated version.

 

Apple III Floppy Sleeve

Submitted by Khaibitgfx on February 15, 2023 - 3:03pm

This is a PDF printable file for the Apple III Floppy diskette sleeve, it is true PDF format so quality printing is assured.

Download Apple III 525 inch floppy sleeve.pdf

Sleeves.jpg

SL5 discussion, timeline, collection of links

Submitted by S.Elliott on February 14, 2023 - 3:50pm

 

Jan 17 photos of card and listing of pins.

Feb 3 search for alternative entry points, discussion aborted.

Tags: 
dongle

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