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What does your OS look like? (Screen Shots..)
https://forum.osdev.org/viewtopic.php?f=1&t=12087
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Author:  pvc [ Sun Feb 24, 2019 12:25 pm ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

@K3achas Lol, nice messages :)

Author:  Crupette [ Tue Feb 26, 2019 3:57 pm ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

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 2114 times ]

Author:  mallard [ Wed Feb 27, 2019 6:08 am ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

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)

Author:  max [ Thu Feb 28, 2019 7:56 am ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

mallard, I'm very impressed, nice progress. keep going!

Author:  BenLunt [ Fri Mar 08, 2019 2:33 pm ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

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

Author:  deleted8917 [ Fri Mar 08, 2019 5:21 pm ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

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!

Author:  alnyan [ Sat Mar 09, 2019 5:44 am ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

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

Author:  Seahorse [ Fri Mar 15, 2019 9:46 pm ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

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.

Author:  coderTrevor [ Fri Mar 22, 2019 3:41 pm ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

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

Author:  bellezzasolo [ Fri Mar 22, 2019 4:08 pm ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

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 3116 times ]

Attachment:
File comment: Debugging BST implementation
IMG_1535.JPG
IMG_1535.JPG [ 110.15 KiB | Viewed 3116 times ]

Attachment:
File comment: Stack allocation
IMG_1534.JPG
IMG_1534.JPG [ 101.7 KiB | Viewed 3116 times ]


https://github.com/ChaiSoft/ChaiOS

Author:  Korona [ Sat Mar 23, 2019 7:57 am ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

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 3072 times ]

Author:  nck [ Sun Mar 24, 2019 7:11 am ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

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 2988 times ]
File comment: 1920x1080 (full screen qemu)
1.jpg
1.jpg [ 75.53 KiB | Viewed 2988 times ]

Author:  coderTrevor [ Sun Mar 31, 2019 2:55 am ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

I've started adding graphics support to my OS.

Image

I ported over sdl_picofont and made a graphical terminal. I also wrote a driver for the Bochs Graphics Adapter, and changed my multiboot header to request that Grub sets up a graphical display. That means I have graphics in Qemu and Virtualbox now (and maybe real hardware but I haven't tested it).

I added a little command that displays a bitmap in the bottom right corner, too. I'm pretty pleased with my progress! :)

Author:  bellezzasolo [ Mon Apr 01, 2019 10:27 am ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

I finally got QEMU+TianoCore to load my OS (unusually I was using real hardware to test before I got the emulator set up!) I'm currently working on a NUMA physical memory manager, so I tested my SRAT capabilities (thankyou ACPICA!)
Attachment:
File comment: QEMU with 2 NUMA nodes
IMG_1547.JPG
IMG_1547.JPG [ 76.18 KiB | Viewed 2636 times ]

The architecture of my OS is UEFI->osloader->Kernel, so BIOS should be easier to support than I initially thought. The osloader does need to load PE files, so I went and put a DLL linker in it. The result is a dynamically linked kernel C library, ACPICA, and there'll be a Hal. Should make driver development simpler.
Attachment:
File comment: Lots of DLLs
IMG_1548.JPG
IMG_1548.JPG [ 125.31 KiB | Viewed 2636 times ]


To be precise, the OS loader sets up paging (well, reuses the UEFI mappings for now), which means a very simple physical memory manager. This involves pulling the first entries of the UEFI memory map and creating a free stack. I create a used stack when allocations are performed, rather than updating the memory map. This gives the kernel access to a page allocation system very early on, which is nice. The kernel can use this to initialise the hefty physical memory manager. Likewise, a recursive mapping is set up, and the slot is passed to the kernel.
Other than that, there's memory map information, framebuffer information (the loader sets mode from configuration or a prompt), and a puts() function.

Author:  akasei [ Wed Apr 17, 2019 11:00 am ]
Post subject:  Re: What does your OS look like? (Screen Shots..)

My work :)

9428 lines of the pure code (no empty lines or comments) in assembly language (NASM), 23 KiB in size.

Image

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