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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Fri Nov 10, 2017 10:00 pm 
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Not so much a screw-up as utilization of some common failures in this thread;
I made a program to show memory "graphically" by copying it to the command buffer.
You can move it forward 1 byte with A or 1024 bytes (1 kb.) with B, and show a little help info + the current location with C.
Here is a demo pic:

Image


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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Sun Nov 12, 2017 6:54 am 
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thumble wrote:
Not so much a screw-up as utilization of some common failures in this thread;
I made a program to show memory "graphically" by copying it to the command buffer.
You can move it forward 1 byte with A or 1024 bytes (1 kb.) with B, and show a little help info + the current location with C.
Here is a demo pic:



NEVER try this on real hardware!!!! This could potentially have problems (corrupting memory) if you are not careful (accidentally writing video memory to the hard drive)

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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Mon Nov 20, 2017 8:42 pm 
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Phewph! I did test it on real hardware, however it was an Acer laptop which refused to boot Windows anyways.
Thank you for the warning.


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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Mon Dec 11, 2017 2:20 pm 
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Some rather interesting results originating from (I assume) a faultly paging implementation, or a bug in my memcpy function :

Image

Image

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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Mon Dec 11, 2017 7:20 pm 
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Stellaris wrote:
Some rather interesting results originating from (I assume) a faulty paging implementation, or a bug in my memcpy function :


Very interesting, gallery-worthy images! Good luck, I hope you find the source of the bug.

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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Wed Dec 13, 2017 12:11 pm 
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Fixed the bug, it was my physical page allocator that was freeing the wrong pages, thus allowing allocated memory to be corrupted
It's sooo satisfying to find the source of a bug tho ^^

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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Sat Dec 23, 2017 7:26 am 
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I don't know where else to put this, but the title of the section is fitting.

I can get my OS to compile properly, but I can't boot it in virtualbox and qemu just decided that it doesn't want to work on my system. And I hate bochs.

I don't have screenshots, but I can tell you right now that i tested this.

Ok, so it's not entirely my system, i was going to modify it to my needs. https://github.com/SamyPesse/How-to-Mak ... ing-System

It compiles fine but I can't boot the images.

p.s. move this somewhere if necessary, i don't know where it should go.

EDIT: i might want to use the right system to compile it... time to download vagrant. Sorry for hijacking the thread :oops:

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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Mon Jan 01, 2018 12:32 pm 
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After implementing multitasking and adding a small clock in the right top corner, all sorts of weird stuff started happening, like this.
Attachment:
Screenshot_2018-01-01_19-21-41.png
Screenshot_2018-01-01_19-21-41.png [ 25.19 KiB | Viewed 3930 times ]

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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Sat Jan 06, 2018 3:58 pm 
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Stellaris wrote:
Some rather interesting results originating from (I assume) a faultly paging implementation, or a bug in my memcpy function :


That's jazzy as heck. More, please! I want a wallpaper like that.

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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Tue Jan 23, 2018 11:58 pm 
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Trying to execute v8086 code moved 0 to endless in physical memory and generated this weird thing:
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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Thu Feb 08, 2018 12:04 am 
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New 8x8 fonts don't completely work.
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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Sun Mar 11, 2018 5:08 am 
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Assembly optimisations :roll:


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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Sat Apr 07, 2018 10:33 pm 
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Real hardware is different from QEMU, I guess..
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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Fri Apr 27, 2018 3:31 am 
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When my OS tries to show the kernel panic screen while dumping 512 bytes


Attachments:
Screenshot from 2018-04-27 14-42-47.png
Screenshot from 2018-04-27 14-42-47.png [ 43.73 KiB | Viewed 2297 times ]

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 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Tue May 01, 2018 2:44 am 
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Testing a rectangle drawing function I wrote in assembly with different resolutions, not what I was expecting but it's a modern abstractionist masterpiece and I want to tour with it to galleries worldwide, schmoozing & sipping fine wines that taste like anti-freeze if I can get the expenses paid for 8)


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drawing.jpg
drawing.jpg [ 41.68 KiB | Viewed 2162 times ]
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