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

Can you build a IIGS slot based DVI video card for $10 (USD)?

Submitted by lukazi on July 15, 2025 - 12:41am

Can you build a IIGS slot based DVI video card for $10 (USD)? Yes, it can be done.

Would you want to build a IIGS slot based DVI video card for $10 (USD)? Now, that's a more intersting and difficult question to answer. The dury is still out on that one. 

For all you sensationalists out there, note that this is the build price and not the sell price.

https://lukazi.blogspot.com/2025/07/cheapskatedv-xenithdv-prototype.html

Cheers,

Alex.

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Apple II

Trouble with Disk II Analog Card

Submitted by travisking51 on July 12, 2025 - 8:08pm

Hello, first time poster here! I had a stash of Disk II Drives that I have been fixing up and am down to one more, but cannot figure out the issue. The Disk II Analog Card had a faulty 74LS125 which has been changed out, but it will still not read any disks. However, when I insert a different, known working analog card, it reads fine, so I know the head is okay. I have tested each resistor, transistor, diode, and capacitor but still cannot figure it out. I have also changed out each IC chip with working ones with no avail.

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Apple II

Sirius Printware v2.1

Submitted by Khaibitgfx on July 12, 2025 - 5:28pm

Sirius Software - Printware v2.1.pdf

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