Forgot to switch to graphics mode before writing to the VBE framebuffer.
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vga-vbe.png [ 11 KiB | Viewed 6600 times ] |
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| When your OS goes crazy - Screenshots https://forum.osdev.org/viewtopic.php?f=1&t=18924 |
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| Author: | froggey [ Sat Jun 18, 2011 1:00 pm ] | ||
| Post subject: | Re: When your OS goes crazy - Screenshots | ||
Forgot to switch to graphics mode before writing to the VBE framebuffer.
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| Author: | CommunistPancake [ Wed Jun 29, 2011 9:21 pm ] |
| Post subject: | Re: When your OS goes crazy - Screenshots |
Tried to debug why VGA wasn't working. Forgot to remove the drawing statements. 
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| Author: | Lionel [ Thu Jun 30, 2011 5:07 pm ] |
| Post subject: | Re: When your OS goes crazy - Screenshots |
First time my os crashed, big one too! I was testing normal - c code and I forgot that doing puts(i); Prints that location in memory, so I dumped my kernel into console memory. Then think it dumped GRUB into console memory. Code: for(false) { puts(i); i++; }  
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| Author: | chibicitiberiu [ Mon Sep 05, 2011 5:17 am ] |
| Post subject: | Re: When your OS goes crazy - Screenshots |
I don't know if this counts as 'crazy', but for some reason the console default color messed up and now text is showing up pink, unless I specify another color. Attachment: pinktext.png [ 56.44 KiB | Viewed 5945 times ] |
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| Author: | jal [ Mon Sep 05, 2011 8:49 am ] |
| Post subject: | Re: When your OS goes crazy - Screenshots |
chibicitiberiu wrote: I don't know if this counts as 'crazy', but for some reason the console default color messed up and now text is showing up pink, unless I specify another color. Hehe, cute. Please let us know what caused this, once you find it. JAL |
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| Author: | chibicitiberiu [ Mon Sep 05, 2011 11:55 pm ] |
| Post subject: | Re: When your OS goes crazy - Screenshots |
I suspect it's the Log() function, which is very similar to printf... to print colored text, it changes the default color, and then it restores it at the end... for some reason the restore part goes wrong... Update: Apparently, that was the problem... A few minor edits, and everything seems to work now. |
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| Author: | Chandra [ Tue Sep 06, 2011 12:09 am ] |
| Post subject: | Re: When your OS goes crazy - Screenshots |
Lionel wrote: |
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| Author: | CWood [ Tue Sep 06, 2011 9:07 am ] | ||
| Post subject: | Re: When your OS goes crazy - Screenshots | ||
Tried to enable paging; apparently the kernel loved that! I think I copied the page tables into graphics memory somehow... hehe lets try again 
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| Author: | mariuszp [ Fri Sep 23, 2011 1:41 pm ] |
| Post subject: | Re: When your OS goes crazy - Screenshots |
My OS does not like polish diactrics (UTF-8). Probably coz it's ina VGA console
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| Author: | xyzzy [ Sat Sep 24, 2011 2:08 am ] | ||
| Post subject: | Re: When your OS goes crazy - Screenshots | ||
It seems I've broken rendering in 16-bit colour modes...
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| Author: | Brynet-Inc [ Sat Sep 24, 2011 11:24 am ] |
| Post subject: | Re: When your OS goes crazy - Screenshots |
xyzzy wrote: It seems I've broken rendering in 16-bit colour modes... Trippy. Successful acid trip simulator. |
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| Author: | xyzzy [ Sun Sep 25, 2011 3:46 am ] |
| Post subject: | Re: When your OS goes crazy - Screenshots |
Turns out it's actually a bug with QEMU's Cocoa frontend, it works fine anywhere else 
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| Author: | Zerith [ Mon Oct 17, 2011 4:44 pm ] |
| Post subject: | Re: When your OS goes crazy - Screenshots |
I was testing my BMP File reader and got this output On the right - Bochs running my OS On the left - the original image i was trying to output 
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| Author: | pdurlej [ Thu Oct 20, 2011 4:19 am ] |
| Post subject: | Re: When your OS goes crazy - Screenshots |
This crash is from the 2005: http://www.durlej.net/sys/crash.png. |
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| Author: | jal [ Thu Oct 20, 2011 5:11 am ] |
| Post subject: | Re: When your OS goes crazy - Screenshots |
acek wrote: This crash is from the 2005: http://www.durlej.net/sys/crash.png. And what did you make post it today, if I may ask? JAL |
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