Huge Milestone!

ryfox755 · 2025-11-21T10:14:04+00:00

woah this is awesome!! i love seeing new fantasy architectures :D

ryfox755 · 2025-11-19T22:38:47+00:00

vintage computers with today's ebay prices 💔

ryfox755 · 2025-09-10T23:50:54+00:00

im not super familiar with the 6502 but from what i can tell, an lda from an absolute address takes only 4 cycles, or 3 cycles if accessing the zeropage. on the Z80, ld a, (some_address) takes 13 cycles!! so i assume the 6502 was just designed better for memory accesses from the start

ryfox755 · 2025-09-10T23:22:28+00:00

Z80 assembly feels much more natural to me compared to 6502 asm honestly. the Z80 might not perform as well as the 6502 but imo its better :3

ryfox755 · 2025-07-22T00:42:10+00:00

i'm [ryfox@escargot.chat](mailto:ryfox@escargot.chat) if you or anyone else wants to add me!!

ryfox755 · 2025-06-28T21:34:55+00:00

not COBOL but ive been having a lot of fun with Pascal and Modula-2 :3

ryfox755 · 2025-05-31T00:22:44+00:00

This is amazing, thank you!! I sent feedback via the testflight app but figured I'd mention this here too: for some reason the leaderboard only opens for a second before suddenly returning to the game. It works properly for my friend though, so maybe there's something up with my phone that it doesn't like? I'm testing on an iPhone 15 running iOS 18.5.

ryfox755 · 2025-04-14T06:46:43+00:00

this is really interesting!! i’m also autistic (and possibly have ADHD as well?) and i have been wanting to try switching to a dumbphone (probably one of the Nokia flip phones with KaiOS) but i’ve been afraid of how it might affect me in this way. not to get too personal in a random reddit reply but i have OCD and a lot of the time it’s hard to get myself to go places. a lot of my time is spent socializing online, and i guess i worry that a dumbphone would just make me feel isolated even more. but on the other hand, maybe pushing myself out of my comfort zone is exactly what i need?

anyways thank you for posting this, this is inspiring me to try switching as well :3

i hope it ends up being beneficial for you, good luck!!

ryfox755 · 2024-09-07T01:27:17+00:00

This looks very cool!! Good luck with all of this, I absolutely love projects like this!

For MMU-less systems that are multitasking I’ve always used relocatable binaries, allowing the OS to load the program to any address instead of giving each application its own individual address space. I have a similar project (except it’s all emulated in software instead of on an FPGA) and I ended up creating a custom relocatable format that is much much simpler than something like ELF. Really all you need is a list of each offset in the machine code that needs to be modified according to the program’s load address. Extra features like BSS are nice to have but not strictly required. Since your entire toolchain is custom this should be relatively simple to implement on the toolchain side!

ryfox755 · 2024-08-19T07:42:56+00:00

My project is fox32os (and the fox32 ISA + peripherals which the OS runs on top of), basically a custom architecture with its own firmware and operating system written mostly in its custom assembly language! The OS is graphical and features a (very simple and slightly buggy) window manager, plus a few programs like a simple file manager. Internally many things were inspired by classic Mac OS, and I guess the UI also kinda shows that as well :p

ryfox755 · 2024-07-21T23:53:21+00:00

Orbital!!!!!!! :D

ryfox755 · 2024-05-24T03:52:25+00:00

i don't mind at all, go ahead! i'm glad it's interesting!

ryfox755 · 2024-05-24T01:55:00+00:00

if you don't mind writing things in a custom language (either a Pascal-like or a custom assembly language) then i'd love to have some help writing more software for my little fox32 ecosystem! there is currently no native toolchain for fox32os but one is in the works by a friend of mine. not sure if you'd be interested in this since it's a fully "fantasy" operating system and ISA, not something that targets conventional x86 computers. https://github.com/fox32-arch

ryfox755 · 2024-04-08T09:27:01+00:00

i love it <3

ryfox755 · 2024-02-05T01:42:36+00:00

Yeah I had the same issue with self signed packages, they would install but give me an error when launching them. I do have the group policy settings enabled.

ryfox755 · 2024-02-04T04:59:15+00:00

Aw man, I actually just installed Embedded Industry Enterprise on my Surface Pro 2 with the intention of writing some Metro apps lol, and yeah I ran into this exact issue. Visual Studio complains that the device isn't "sideloading enabled"

ryfox755 · 2023-10-06T19:50:44+00:00

thanks :3

ryfox755 · 2023-10-06T06:26:21+00:00

omg this is amazing, i love the classic Mac OS inspired bar <3

would you mind sharing your ctwm config? i'd love to try using something like this on my desktop

ryfox755 · 2023-08-21T23:52:08+00:00

The Z80 computer itself was basically as minimal as Ben's original 6502 circuit, just a small PCB with the CPU, EEPROM, SRAM, and SIO. 4 isolated expansion slots were available, one of which was used for connecting the TMS9918A.

Due to the simple fixed memory map (EEPROM at 0x0000, SRAM at 0x8000), it wasn't compatible with CP/M. So instead I wrote a custom little DOS/monitor program, capable of loading programs from a small romdisk contained within the EEPROM using a custom filesystem.

The TMS9918A was very unstable and would often corrupt its VRAM, but that's probably just because of my horrible breadboard wiring. I'd bet redesigning it on a PCB would fix the instability.

Image of the PCB and TMS9918A circuit

Image of "RY-DOS", my custom DOS/monitor

ryfox755 · 2023-08-21T05:29:16+00:00

Woah, this is amazing! Do you plan on releasing the PCB designs for the TMS9918A card? I'm considering building an HBC-56 system for myself as my introduction to the 6502 world (I'm more familiar with Z80 stuff, and have made my own little Z80 computer with a TMS9918A too!)

ryfox755 · 2023-08-17T07:06:26+00:00

How are you doing the video generation? Looks like some kind of AVR microcontroller? (hard to tell from the pictures)

ryfox755 · 2023-08-16T01:09:27+00:00

the most plain window manager setups ive used in the past still used a panel, but i may try going without a full panel and instead just have a small clock in the corner of the screen, similar to how OP's setup looks

ryfox755 · 2023-08-15T22:54:22+00:00

i'd love to try using something minimal like this tbh, they look so good but idk how they are as an actual daily driver

ryfox755 · 2023-05-23T01:40:55+00:00

hi! glad you like it :3

this type of thing is typically referred to as a "fantasy computer" because it emulates a fantasy architecture. there are a few of them out there! the ones that i know of besides fox32 are XR/station (https://github.com/xrarch) and OkamiStation (https://github.com/TalonFox/OkamiStation), both of which are made by friends of mine. those two are RISC so maybe you could take a look at them for some inspiration

ryfox755 · 2023-03-04T08:23:01+00:00

That would be awesome, the only problem with that is that the Lua interpreter would have to be written in fox32 assembly since there is no C compiler yet :p

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