Apple II

Anyone using BMOW Yellowstone 3.5 drive controller for Apple Pascal

Submitted by old_hitech on July 22, 2025 - 12:09pm

I would like to run Apple Pascal on my Apple II+ computer with a 3.5 drive. I like the amount of storage and speed of the 3.5 drive when I run Apple Pascal on my Apple IIgs. I'd like to try it with my Apple II+. I'm not sure if the BMOW Yellowstone card supports Apple Pascal with a 3.5 drive with an Apple IIgs+. Has anyone tried this? 

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Apple II

Drive Disk II slot number asm

Submitted by VIBR on July 21, 2025 - 4:12pm

Hello, 

Is there somewhere a piece of asm code to detect which slot the DiskII is ? (working for 6502)

thanks

Vincent 

 

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Apple II

Apple ii crystal oscillator issue

Submitted by Maxplayz on July 21, 2025 - 12:25pm

Hi guys I am working on an apple ii replica this time and i ran into a strange problem with the 14.31818MHz crystal oscillator circuit. I am using this crystal that i bought from Mouser: https://www.mouser.co.uk/ProductDetail/ABRACON/ABL-14.31818MHz-B1U?qs=DZ%2FvJMgWWIuY3tOrhGQEVQ%3D%3D. 

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Apple II

Prodos program trace step by step

Submitted by VIBR on July 19, 2025 - 10:28am

Hello all, 

I am writing a ASM program to run under prodos 2.4.3

The program is working well with my Virtual II emulator but when I run it on a real IIe, I have some issues. 

During the execution, I am having the * prompt

I want to trace my program step by step, the starting point is 0x2000

when I enter in monitor 

*2000L

I can see my program listing but 

when I do 

*2000S

and then 

TRACE or STEP nothing happen.

 

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Apple II

Need help identifying cables

Submitted by gottj on July 18, 2025 - 4:15pm

I recently received a haul of some Apple hardware including lots of cables, SCSI devices, and two computers (thank you Peter!). In going through the cables, I've come across some cables that I can't identify. Please help if you are able.

 

One is a DB15 M/M cable that has pins 1 through 7, 9 through 11, and pin 13.  

The other is a DB15 M/M with pins 1 through 3, 5 through 6, 9 through 10, and pin 13.

 

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Apple II

IIe in PC tower

Submitted by Wayne on July 18, 2025 - 1:13pm

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Apple II

Apex OS for Apple II?

Submitted by PraetorX on July 16, 2025 - 1:35am

Does anyone have any .dsk images with the Apex operating system for Apple?  I've searched around unsuccessfully.   I've seen a few images for something called Apex II, but that doesn't seem to be the same thing, as it runs under ProDOS and was created ~1984.

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Apple II

Applesauce

Submitted by Wizard1969 on July 15, 2025 - 3:29pm

I have an Applesauce, but apparently it can not write a .woz file to disk. Does anyone know of a device that can?

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Apple II

Asking for hint: annunciators and HGR

Submitted by JulGiul on July 15, 2025 - 2:52pm

Hi everyone !

It is not the first time I read some quick phrase about Annunciators implying different behavior of HGR colors.

Are they talking about the 4 Annunciator lines in the joystick DIP socket, or something else?

 

Thank you all !

Julian

 

 

 

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Apple II

DRAM test EPROM for all Apple II (except IIgs maybe)

Submitted by UncleBernie on July 15, 2025 - 10:54am

Recently one of my 'IWMless' beta testers ran into a problem with his Apple IIc and needed a memory test program. Since the machine would refuse to boot ("Check Disk Drive" error message), the best way is to remove the firmware ROM (always socketed) and plug in an EPROM with a memory test.

 

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Apple II

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