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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘//e’ Category

dasm – macro assembler for 8-bit machines

Posted by jpluimers on 2026/03/04

Finding a reference to DASM while researching yesterday’s post @jpluimers on Twitter: โ€œ@b0rk @jilles_com Acids vs bases.โ€, it felt even more like a trip like memory lane as I had used it in the 1980s on Apple ][ and Apple //e after mainly using EDASM. Lisa and Merlin.

I am glad that it is still alive and kicking with home page at [Wayback/Archive] dasm – macro assembler for 8-bit machines and repository at [Wayback/Archive] dasm-assembler/dasm: Macro assembler with support for several 8-bit microprocessors.

Especially this history section on the home page rang a bell:

  • Matthew Dillon startedย dasmย in 1987-1988.
  • Olaf “Rhialto” Seibert extendedย dasmย in 1995.
  • Andrew “Dr.Boo” Davie maintainedย dasmย in 2003-2008.
  • Peter Frรถhlich maintainedย dasmย in 2008-2015.
  • In 2019, theย dasmย source code and releases were moved toย GitHub.

More links from this trip down memory lane:

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Posted in Software Development, Development, Power User, History, Apple, Assembly Language, Apple ][, //e, 6502 Assembly | Leave a Comment »

Apple II: Single Step in Monitor | Applefritter

Posted by jpluimers on 2026/02/10

I need to check out which ROM my Apple //e and //c have as per [Wayback/Archive] Single Step in Monitor | Applefritter comment by [Wayback/Archive] jeffmazur | Applefritter:

Depends upon which machine and ROM version you have.

The original Apple II monitor does have an S command to single step code in the Monitor. That was removed however to add other features and was not restored until ROM00 of the //c. There are however various 3rd-party ROM images that also have the Step and Trace commands, for example ROMeX and ROM4X, APPLEII.EDM, etc.

There are also hardware boards available to do this as well

Links

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Posted in //e, 6502, Apple, Apple ][, History, Power User, Retrocomputing | Tagged: | Leave a Comment »

Bit by Bit – Exploring Low-Level Programming on the Apple IIe | decuserโ€™s blog

Posted by jpluimers on 2026/02/05

At the time of posting [Wayback/Archive] Bit by Bit – Exploring Low-Level Programming on the Apple IIe | decuserโ€™s blog in 20251010, four episodes were up at [Wayback/Archive] Bit by Bit – Exploring low-level programming with an Apple IIe – YouTube which at the time of archiving at the end of October 2025 already got 10 episodes.

Hopefully by now – some 2 months later – the list has grown even further.

Via [Wayback/Archive] Bit by Bit – Exploring Low-Level Programming on the Apple IIe | Applefritter who explains further than the blog post:

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Posted in //e, 6502, 6502 Assembly, Apple, Assembly Language, Development, History, Power User, Retrocomputing, Software Development | Leave a Comment »

More Apple ][*, //* II* and classic Macintosh hardware upgrades

Posted by jpluimers on 2025/11/14

The mini micro classic Apple emulators related post last week became way too big, so here is the classic Apple 2/Macintosh hardware upgrade part follow-up I announced in Some notes on mini/micro Apple //e emulators.

Last week, I mentioned [Wayback/Archive] ARC Javmaster – YouTube. Let’s continue from there for an even bigger post (:

Javmaster actually has a shop at [Wayback/Archive] Welcome to the 8-bit stuff store – 8 bit stuff cool retro computer 3D gadgets and geekery with a lot of interesting (mainly Apple ][ era related) retro things like:

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Posted in //e, 6502, Apple, Apple ][, Classic Macintosh, History, Macintosh SE/30, Power User, Retrocomputing | Tagged: , , , , , , , , | Leave a Comment »

30+ years of Apple’s Human Interface Guidelines from 1985 (and earlier Lisa / Apple II equivalents)

Posted by jpluimers on 2025/09/25

I hope someone has also archived all these in the Internet Archive as this is a great collection of historic material: [WaybackSave/Archive] GitHub – gingerbeardman/apple-human-interface-guidelines: Apple Human Interface Guidelines, et al.

If you have more of them: add them via a pull-request.

Related: [Wayback/Archive] Making It Macintosh: The Macintosh Human Interface Guidelines Companion : Apple : Free Download, Borrow, and Streaming : Internet Archive

A client that went belly up in the early 1990s had all these and similar books. In retrospect, I though have found a way to obtain them but back then I didn’t value the uniqueness of them enough and didn’t have the storage space for it (I lived in a 30mยฒ apartment).

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Posted in //e, 68k, Apple, Apple Lisa, Classic Macintosh, Development, Hardware, History, Mac, NeXT, Power User, Software Development, User Experience (ux) | Leave a Comment »

Welcome to #AprilApples! Apple II Computer event celebrated in the month of April

Posted by jpluimers on 2025/04/01

AprilApples Apple II Computer Event LogoLast year, #Appril][ got rebranded into #AprilApples, so I wish you a happy retro-month filled with April Apples!

[Wayback/Archive] Welcome to #AprilApples! Apple II Computer event celebrated in the month of April

Consider using theย [Wayback/Archive] #AprilApples Style Guide with logon on the right, plus Garamond and/or Motter Tektura typeface when possible to really give tribute to the Apple ][ era.


Last year, a big surprise was that Apple Computer put a PDF version of the famous Apple Pascal Poster on the Internet Archive.

So today is a great day to give that more traction and link to it:

A year before, during April][, a remake of that poster got done on AppleFritter:ย Home[Wayback/Archive] Apple pascal๏ฃฟ poster, remade | Applefritter

Via [Wayback/Archive] Javmaster@bsky.social: “http://appril2.com/ ” – Mastodon

Fonts:

Images (I used a solid CSS brown background so you can see the difference between the regular logo and the outlined logo):

--jeroen

Posted in //e, 6502, Apple, Apple ///, Apple Lisa, Apple ][, Classic Macintosh, History, Power User | Tagged: , , | Leave a Comment »

Embedding a Floppy Emu in a standard APPLE II Floppy Disk Drive – YouTube

Posted by jpluimers on 2025/03/25

Interesting modification: [Wayback/Archive] Embedding a Floppy Emu in a standard APPLE II Floppy Disk Drive – YouTube

STL: [Wayback/Archive] FermuAssembly.STL – Google Drive [Wayback] FermuAssembly.STL

Buttons: [Wayback/Archive] 3/4/5-Bit Independent Button Module MCU External Button Module Micro Switch Button Board Bluetooth-compatible Power Amplifier – AliExpress 502

--jeroen

Posted in //e, 6502, Apple, Apple ][, Development, Hardware Interfacing, History, Power User, Retrocomputing | Leave a Comment »

Some notes on mini/micro Apple //e emulators

Posted by jpluimers on 2025/01/30

Retro computing is wildly popular, and with the rise of low cost single-board computers (SBCs for short), both Apple //e and ][+ emulators plus extension cards have proliferated,ย  based on Raspberry Pi (or even their RP2040 microcontroller based Pico), ESP32 or predecessor ESP8266 microcontrollers and others.

Some links for my archive:

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Posted in //e, Apple, Development, Emulators, ESP32, ESP8266, Hardware Development, Power User, Raspberry Pi, Raspberry Pi Pico, Retrocomputing, Software Development | Tagged: , , , | Leave a Comment »

Applesoft BASIC in JavaScript

Posted by jpluimers on 2025/01/23

Not my first BASIC (which was on calculators: The calculators that got me into programming (via: calculators : Algorithms for the masses โ€“ julian m bucknall)), but the first BASIC on a machine with a real keyboard was Applesoft BASIC on an Apple II:

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Posted in //e, 6502, Apple, Apple ][, Applesoft BASIC, BASIC, Development, History, Mastodon, Power User, SocialMedia, Software Development, Twitter | Leave a Comment »

Identity Crisis | Apple II Programs: Susan Kare’s “Happy Mac” on an Apple II

Posted by jpluimers on 2024/09/04

The re-imagined iconinc Happy Mac by Suzan Kare on the computer she got before even becoming employee #10 at Apple in 1982 [Wayback/Archive] Identity Crisis | Apple II Programs

Identity Crisis

Via [Wayback/Archive] Short Programs | Apple II Programs “Susan Kare’s “Happy Mac” on an Apple II

At age 70, Susan is still alive and kicking, and even around on Twitter as [Wayback/Archive] Susan Kare (@SusanKare).

Inspired by a search because of [Wayback/Archive] Ron’s Computer Videos ๐Ÿงโ€โ™‚๏ธ๐Ÿ–ฅ๏ธ ๐Ÿ“ผ on X: “I wonder if Susan knew that Steve used her desk?”:

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Posted in //e, 6502, Apple, Apple ][, Classic Macintosh, History, Power User | Leave a Comment »