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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Mon Feb 18, 2019 12:25 pm 
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Nothing impressive or of the other world, has no paging, multitasking, or executables files yet. (well, sincerely I have no idea how to do it, but well ... :( ) At least it's something more than a simple bootloader that just prints "Hello world". :)
Only haves an 80x25 screen resolution, text only. Who needs GUI? A simple shell is enough for everyone! You can have a fancy OS with beautiful GUI, but the kernel can be buggy, or not fully functional. (there are exceptions) Or you can have a ugly shell, but a fully functional kernel.
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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Sat Feb 23, 2019 9:18 am 
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Now CHicago have it's own assembler + linker for the userspace, with a custom executable format.

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Developing CHicago Operating System.


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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Sun Feb 24, 2019 10:22 am 
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All the non-efi stuff (except the loaders) are written for my OS. Now just to find the framebuffer, load the driver and kernel files, and set up virtual memory.


Attachments:
boot0.gif
boot0.gif [ 114.07 KiB | Viewed 2456 times ]

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The maker of Foxtrot microkernels. Currently just Greyhound, which is currently smaller than 3 KiB.
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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Sun Feb 24, 2019 12:25 pm 
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@K3achas Lol, nice messages :)

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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Tue Feb 26, 2019 3:57 pm 
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First time posting to this forum
This is an image of my kernel loading a kernel object
Attachment:
File comment: Also added a /dev/zero!
modet-limitedmodules.png
modet-limitedmodules.png [ 18.86 KiB | Viewed 2315 times ]

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Working on modetOS https://www.github.com/Crupette/modetOS


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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Wed Feb 27, 2019 6:08 am 
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Location: Private, UK
I've not posted a screenshot for a little while since I've largely been working on "invisible" back-end stuff, like hardware autodetection, package management, etc. and haven't had much to show... I've recently returned to working on UI-related stuff, so here goes:

Image

This shows a few "prototype" GUI apps I built relatively quickly based on a port of SDL Widgets (whose stock test program is also visible). At the bottom of the screen, you can see my very early work-in-progress on my own GUI widget system.

EDIT: Here's a bonus screenshot of a much higher resolution display with (nearly; there is evidence of the missing one...) every GUI application that exists for BT/OS visible, along with a bit more work on my widgets:

Image
(Click for full size)

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Last edited by mallard on Thu Feb 28, 2019 2:41 pm, edited 3 times in total.

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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Thu Feb 28, 2019 7:56 am 
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mallard, I'm very impressed, nice progress. keep going!

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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Fri Mar 08, 2019 2:33 pm 
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Hi guys,

I decided to update my code base a little. The following is a quick screen shot, nothing fancy, but (if sound was included) you can see that I now (mostly) support the AC97 sound card.

Image

As a side note, I decided to let it boot at 640x480x32 and of course the background image is a little larger and "bleeds" to the top. I will have to fix this.

Anyway, after the interest in the AC97 Post, and after reading over the specs, I decided to see what I could come up with. Surprisingly, the AC97 is actually quite simple to program, once I clarified a few things with different documents.

Anyway, I have an updated (USB) bootable hard drive image (20 Meg) at the home page or a direct link (7 meg zipped).

It is a Lean FS image with the boot and kernel files, fonts, various image formats and now, various sound formats as shown in the listing in the image above.

The GUI runs fine (though a bit slow) in an emulator, i.e.: all images are visible, even the animated .GIFs and animated .PNGs. It runs a lot faster on real hardware since it takes advantage of the hardware's fast memory move features, but some of the images now don't display at all. uuhhmmm. I will have to investigate this.

Anyway, just thought I would put up an update. Thanks to everyone here for keeping this hobby interesting.

Ben
- http://www.fysnet.net/osdesign_book_series.htm


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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Fri Mar 08, 2019 5:21 pm 
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BenLunt wrote:
Hi guys,

I decided to update my code base a little. The following is a quick screen shot, nothing fancy, but (if sound was included) you can see that I now (mostly) support the AC97 sound card.

Image

As a side note, I decided to let it boot at 640x480x32 and of course the background image is a little larger and "bleeds" to the top. I will have to fix this.

Anyway, after the interest in the AC97 Post, and after reading over the specs, I decided to see what I could come up with. Surprisingly, the AC97 is actually quite simple to program, once I clarified a few things with different documents.

Anyway, I have an updated (USB) bootable hard drive image (20 Meg) at the home page or a direct link (7 meg zipped).

It is a Lean FS image with the boot and kernel files, fonts, various image formats and now, various sound formats as shown in the listing in the image above.

The GUI runs fine (though a bit slow) in an emulator, i.e.: all images are visible, even the animated .GIFs and animated .PNGs. It runs a lot faster on real hardware since it takes advantage of the hardware's fast memory move features, but some of the images now don't display at all. uuhhmmm. I will have to investigate this.

Anyway, just thought I would put up an update. Thanks to everyone here for keeping this hobby interesting.

Ben
- http://www.fysnet.net/osdesign_book_series.htm

Excelent work Ben!


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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Sat Mar 09, 2019 5:44 am 
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Joined: Thu Mar 07, 2019 2:31 am
Posts: 9
After I've started rewriting the whole scheduler/syscall/task/vfs thing, there's not much to show, but now the kernel supports kernel-mode tasks.
Image
And with vesa framebuffer console:
Image

Here's also a screenshot from before I've started the rewrite - signal handling in userspace:
Image

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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Fri Mar 15, 2019 9:46 pm 
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mallard wrote:
I've not posted a screenshot for a little while since I've largely been working on "invisible" back-end stuff, like hardware autodetection, package management, etc. and haven't had much to show... I've recently returned to working on UI-related stuff, so here goes:

Image

This shows a few "prototype" GUI apps I built relatively quickly based on a port of SDL Widgets (whose stock test program is also visible). At the bottom of the screen, you can see my very early work-in-progress on my own GUI widget system.

EDIT: Here's a bonus screenshot of a much higher resolution display with (nearly; there is evidence of the missing one...) every GUI application that exists for BT/OS visible, along with a bit more work on my widgets:

Image
(Click for full size)

Looks like Windows 3.x and 9x have been mixed together.


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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Fri Mar 22, 2019 3:41 pm 
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Joined: Fri Mar 22, 2019 12:34 pm
Posts: 7
Hello, World!
Here's the culmination of about 3 to 4 weeks of work in my free time:

Image

Of course it's still missing tons of basic functionality, but since it can load and run an executable, I believe it has just reached the point of being an operating system. :D


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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Fri Mar 22, 2019 4:08 pm 
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A new, UEFI based, kernel
And yes, the APs are all started up (trying to boot another OS afterwards hangs, since the SIPIs are lost)
Attachment:
File comment: Topology code (UEFI startup)
IMG_1537.JPG
IMG_1537.JPG [ 99.08 KiB | Viewed 3317 times ]

Attachment:
File comment: Debugging BST implementation
IMG_1535.JPG
IMG_1535.JPG [ 110.15 KiB | Viewed 3317 times ]

Attachment:
File comment: Stack allocation
IMG_1534.JPG
IMG_1534.JPG [ 101.7 KiB | Viewed 3317 times ]


https://github.com/ChaiSoft/ChaiOS

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https://github.com/ChaiSoft/ChaiOS


Last edited by bellezzasolo on Sun Mar 24, 2019 6:49 pm, edited 1 time in total.

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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Sat Mar 23, 2019 7:57 am 
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Joined: Thu May 17, 2007 1:27 pm
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In the last few months, I did not do much work on ports. Nevertheless, today I decided to implement the missing stuff for ncurses and nano.

Apart from that, a new major feature in managarm is that userspace drivers can now upload eBPF-like programs to the kernel. The programs are written using C++ expression templates (as in this example), compiled to x86_64 ELF shared libraries by my new SSA compiler library (called lewis), and inserted as kernel modules. This is used to process interrupt handlers synchronously (which previously had to be asynchronously in a mask-irq/wake-drivers/unmask-irq cycle). Hence, this feature improves performance by closing the gap in IRQ latency with respect to monolithic kernels.


Attachments:
nano.png
nano.png [ 82.55 KiB | Viewed 3273 times ]

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managarm: Microkernel-based OS that is capable of running a Wayland desktop
My OS-dev projects: [mlibc: Portable C library for managarm, qword, Linux, Sigma, ...] [LAI: AML interpreter] [xbstrap: Build system for OS distributions]
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 Post subject: Re: What does your OS look like? (Screen Shots..)
PostPosted: Sun Mar 24, 2019 7:11 am 
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Posts: 1
I'm trying to learn how to write a simple OS.. here it is! MiaOS
UEFI app style OS written in C and gnu-efi

https://imgur.com/a/bQMU5Ff


Attachments:
File comment: 800x600
213.jpg
213.jpg [ 126.14 KiB | Viewed 3189 times ]
File comment: 1920x1080 (full screen qemu)
1.jpg
1.jpg [ 75.53 KiB | Viewed 3189 times ]
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