Show threadpsfSep 9, 2025

PsfMon, my #z80 machine code monitor, is now running on my real #MailStation!

I optimized it from its original size of 332 bytes to 255 bytes, snugly fitting in one 256 byte page of dataflash. The gui "terminal emulator" takes another 256 byte page. This provides a self contained 512 byte development tool.

Command set - similar to #WozMon:

8000 - View byte at address 8000
8010,801f - View 16 bytes at address 8010
,803f - View from next address (8020) to 803f
8040>de ad - Place bytes de ad starting at 8040
>be ef - Place bytes be ef next (at 8042)
8000r - Execute code at address 8000

Anyway, here it is displaying 128 bytes of its own code.

Csepp 🌢Mar 4, 2025
Nothing like trying to build a machine monitor from scratch to make me appreciate #WozMon even more. I think I finally have a hex nibble parser (haven't tested it, yolo) and a byte parser, so parsing an address should be easy... right? Well, not if you've never written a parser in assembly before and want to avoid using the stack.
So, yeah #65cha02 is a bit stuck right now. Might put it on hold tbh, I want to have something ready for Árok this summer. Last time I said I'd have something running on the PocketViewer, so I'd better hold myself to that promise.
cc: #theWorkshop #theFoundry
Kevin Karhan Apr 12, 2024

#LGR: Admits he's not nerd enough to collect #SGI machines

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@ActionRetro laughs in #Apple1 #WozMon

https://www.youtube.com/watch?v=cUF6qra-0lk

I Got My Apple-1 On The Internet

YouTube
ataffanelMar 1, 2024

Thanks to #beneater videos, i have been into #retrocomputing lately. Since i am better at making PCB than building complex breadboard circuits, my first creation was a #65c02 SBC compatible with the Apple1/Replica1.

From a software point of view, it behaves like an Apple1 so it runs #wozmon and any Appe1 software I could throw at it. Keyboard and display is emulated by an arduino and available as a (usb) serial port.

GripNewsNov 24, 2023
🌘 將WozMon適應麪包板6502 - YouTube
➤ 支援這些視頻的方法以及社交媒體和網站連結。
✤ https://www.youtube.com/watch?v=7M8LvMtdcgY
本文介紹瞭如何將WozMon適應於麪包板上的6502處理器。WozMon是一種低階的微妙監控程式，可用於調試和測試計算機硬件。
+ 我很期待這個教程，這對於我的項目將非常有用。
+ 謝謝你的分享，我已經開始嘗試將WozMon應用於我的麪包板6502項目上。非常感謝！
#技術 #WozMon #6502 #麪包板 #YouTube
Adapting WozMon for the breadboard 6502

YouTube
GripNewsJun 3, 2023
🌗 在麵包板電腦上運行Apple 1軟件（Wozmon）
➤ 看看這位工程師如何在自製的電腦上運行古老的蘋果1軟件
https://www.youtube.com/watch?v=HlLCtjJzHVI
這位工程師展示了如何在自製的麵包板電腦上運行古老的蘋果1軟件，讓觀眾們看到了科技的發展歷程和工程師的創造力。
+ 太厲害了，這位工程師真的很有才華！
+ 看到這個視頻，我對電腦的理解又更深入了一步。
#麵包板電腦 #Apple 1 #Wozmon #工程師 #軟件開發
Running Apple 1 software on a breadboard computer (Wozmon)

YouTube