Wozmon for x86-64

Re:Wozmon for x86-64 by k8svet on Tuesday November 28, 2023 @11:34PM (#38455614)

Read the readme, consider myself a mostly-not-total-idiot. Would buy author a beer to add a whole two sentences to illuminate what wozman is. If it's just that niche and I'm ignorant feel free to ignore me.

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Re:Wozmon for x86-64 by zellyn on Wednesday November 29, 2023 @12:06AM (#38455788)

This might be helpful… https://www.youtube.com/watch?v=SpG8rgI7Hec

I find it a little weird that these comments always come up on hackernews… if you type "wozmon" in your URL bar and hit enter to search, pretty much _all_ the results are pertinent and helpful.

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Re:Wozmon for x86-64 by RossBencina on Tuesday November 28, 2023 @11:53PM (#38455721)

The source code[1] has a better intro:

> A complete instruction by instruction rewrite of Steve Wozniak's system monitor from 1976 for the Apple-1

I found a nice intro to Wozmon here: https://www.sbprojects.net/projects/apple1/wozmon.php

To add to your suggestion for the README: if this is indeed an "instruction by instruction rewrite" then it would also be helpful to include a canonical link to the original 6502 source. (Found a version here: https://gist.github.com/nobuh/1161983)

[1] https://github.com/IanSeyler/wozmon_x86-64/blob/main/src/woz...

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Re:Wozmon for x86-64 by reanimus on Tuesday November 28, 2023 @11:55PM (#38455738)

It's the boot ROM that came with the Apple I. It was pretty big for the time given that in those days, computers didn't come with flash, so you had to bootstrap programs with dip switches and the like. The Apple I came with wozmon on ROM, which provided a (VERY) minimal prompt to edit/view memory and run programs from it.

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Re:Wozmon for x86-64 by coldpie on Wednesday November 29, 2023 @09:23AM (#38459646)

> so you had to bootstrap programs with dip switches and the like

For more on this, check out this amazing series of videos from deramp5113 about the Altair 8800: https://www.youtube.com/playlist?list=PLB3mwSROoJ4KLWM8KwK0c...

(Also available on archive.org: https://archive.org/search?query=altair+8800&sort=title&and%... )

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Re:Wozmon for x86-64 by helsinkiandrew on Wednesday November 29, 2023 @03:35AM (#38456981)

Ben Eater has a number of very informative videos on Wozmon on YouTube - what it is, how it works and and getting it to work on a home built 6502 machine, literally stepping through the assembly:

Running Apple 1 software on a breadboard computer (Wozmon) https://www.youtube.com/watch?v=HlLCtjJzHVI

How Wozniak’s code for the Apple 1 works: https://www.youtube.com/watch?v=SpG8rgI7Hec

Adapting WozMon for the breadboard 6502 https://www.youtube.com/watch?v=7M8LvMtdcgY

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Re:Wozmon for x86-64 by benj111 on Wednesday November 29, 2023 @04:17AM (#38457241)

It's a monitor by Steve (woz)niak.

Self explanatory really!

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Re:Wozmon for x86-64 by ianseyler on Wednesday November 29, 2023 @08:58AM (#38459366)

Good point! I've added some text about wozmon to the README.

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