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2020-07-29Added elf loading and test appMarvin Borner
2020-07-29Forget what I said, this was an easy fixMarvin Borner
Making the asm instructions volatile seems to fix every issue
2020-07-29Switched to -Os flag and fixed issues with itMarvin Borner
Somehow the insl function gets optimized to one instruction so I need a gcc attribute to exclude this function from optimization. I may fix this in the future though. Anyways, the kernel is waay smaller now! :)
2020-07-29Added assertionsMarvin Borner
2020-07-28Yay, timer works.Marvin Borner
This confirms my assumption that the errors are the bootloaders fault by not supporting indirect pointers.
2020-07-28Make the bin smaller so direct pointers are enoughMarvin Borner
This is not a final sollution but will work for the moment. I'm just too confused by assembly so I implemented some tricks to shrink the binary.
2020-07-28Added matrixMarvin Borner
2020-07-26Something like this *could* work in the futureMarvin Borner
This needs MUCH work though (and doesn't work right now :P)
2020-07-26Added cpu timerMarvin Borner
Well, it doesn't work *at all*. When I include these files with the Makefile everything crashes. I *think* this is due to the fact that the bootloader only handles direct ext2 pointer and the kernel is too big to fit into them. Therefore the kernel taps into the void as it tries to read some data an crashes. It could be something completely different though - let's see! (this will take some time ig)
2020-07-26Added simple keyboard input.Marvin Borner
This is somewhat of a demo. The real gui will be implemented completely different (ig)
2020-07-26Added terminus font and config fileMarvin Borner
2020-07-26Added basic gui writerMarvin Borner
2020-07-26Seems to work quite wellMarvin Borner
2020-07-26I'm so confused right now...Marvin Borner
I have to fix this tomorrow ig
2020-07-25Some progress for PSF2Marvin Borner
2020-07-25Added very basic PSF parserMarvin Borner
Version 1 works; Version 2 not so much
2020-07-25Added directory supportMarvin Borner
2020-07-25Added fs wrapperMarvin Borner
2020-07-25Yet another fixMarvin Borner
2020-07-24I FINALLY FOUND THE BUG!Marvin Borner
WHY?!
2020-07-24Bug hunting for file reading (ext2 idp recursion)Marvin Borner
2020-07-24WhoopsMarvin Borner
2020-07-23Removed useless loggingMarvin Borner
2020-07-23Added *very* simple ide and ext2 supportMarvin Borner
2020-07-23Added formatted print functionMarvin Borner
2020-07-23Some functions for stdlibMarvin Borner
2020-07-23Well, I need ASM ig.Marvin Borner
I've tried to do interrupts without ASM but it doesn't seem to work.
2020-07-22Initial keyboard implementationMarvin Borner
2020-07-22Added interruptsMarvin Borner
2020-07-22Added basic malloc (WARNING: DUMB!) :)Marvin Borner
2020-07-22Imported some things from masterMarvin Borner
2020-07-22Switched to Makefile.Marvin Borner
Kinda for the sake of minimalism
2020-07-22Bumped up resolutionMarvin Borner
2020-07-22Added VESA support in bootloaderMarvin Borner
2020-07-22Okidoki, seems to work!Marvin Borner
2020-07-22Removed some magic gdt numbersMarvin Borner
2020-07-21Added mmap parsingMarvin Borner
2020-07-21Yaas. May or may not work.Marvin Borner
This is actually very dumb. I thought about a fix for the 0x200 inode 16bit overflow since a few days but then I just decided to use a static inode (5) for the kernel. It's way simpler to implement so I'm staying with this for a while (although specific inodes don't work with genext2fs and co AFAIK).
2020-07-15this very much good beMarvin Borner
2020-07-14AwesomeMarvin Borner
2020-07-14Simple fix because I don't want to fix it for realMarvin Borner
The inode number overflowed the 16 bit registers. Without splitting the numbers, there's no other way than removing the /boot directory ig. I just didn't want to fix it for real :)
2020-07-01Save ax and bx in print routineMarvin Borner
2020-07-01Better namingMarvin Borner
2020-06-27Lea is awesomeMarvin Borner
The operation of course, not the name
2020-06-24Started kernel loadingMarvin Borner
2020-06-24Cleaned up boot-loopMarvin Borner
Pun intended.
2020-06-24Fixed boot searchMarvin Borner
2020-06-24Added file-search loopMarvin Borner
Kinda works.
2020-06-23Reduced magic numbers with definitionsMarvin Borner
2020-06-23Added root directory verificationMarvin Borner
2020-06-22Some thingsMarvin Borner
2020-06-21Some fixesMarvin Borner
2020-06-20Added static binary kernel loadingMarvin Borner
2020-06-20Added bootloader and basic ext2 parsingMarvin Borner
2020-06-17Hello!Marvin Borner
2020-06-17Started rewriteMarvin Borner
2020-06-17Some thingsMarvin Borner
2020-06-05Fixed many HUGE bugs...Marvin Borner
2020-06-03Added warningMarvin Borner
2020-06-02Much work on the ELF parser and userspace jumpingMarvin Borner
2020-06-01Very clean mmap approachMarvin Borner
Sorry for the previous commit messages, I was kind of frustrated.
2020-06-01HmmMarvin Borner
2020-06-01Aaaah so many bugsMarvin Borner
2020-05-31Fixed unavailable printf paddingMarvin Borner
2020-05-31Some memory display fixesMarvin Borner
2020-05-31OMGMarvin Borner
2020-05-29Added more printf featuresMarvin Borner
2020-05-28Fixed clean buffer and added TODO :)Marvin Borner
2020-05-28Added vsprintf support for serial connectionsMarvin Borner
2020-05-28Added sprintf functionMarvin Borner
2020-05-28Added assertion to userspaceMarvin Borner
2020-05-28Started higher-half kernelMarvin Borner
2020-05-28Way better assertionMarvin Borner
2020-05-28Added page directory freeing functionMarvin Borner
2020-05-26Reduced some magic numbersMarvin Borner
2020-05-26Some workarounds which apparently work.Marvin Borner
2020-05-23Dynamic paging approachMarvin Borner
I think this is it. I really do. I guess.
2020-05-23Better paging directory creatorMarvin Borner
2020-05-21Fixed assertionMarvin Borner
2020-05-19Improved test caseMarvin Borner
2020-05-19Woah, so many changes :OMarvin Borner
2020-05-16Non-dynamic working approachMarvin Borner
2020-05-15Added test-case for mallocMarvin Borner
2020-05-14Some attempts to fix it, nothing worksMarvin Borner
2020-05-14Fixed kernel end variableMarvin Borner
2020-05-13Some page directory fixesMarvin Borner
2020-05-13Replaced alloc.h with liballocMarvin Borner
And many more adaptions to the lib
2020-05-13Fixed exit in unistd instead of stdlibMarvin Borner
2020-05-12Added scheduler spinlockingMarvin Borner
I don't think it's needed though, ints are disabled anyway
2020-05-12Still searching the bug...Marvin Borner
And fixed many other small ones
2020-05-12Removed useless fb check in fault handlerMarvin Borner
2020-05-12Fixed wrong array size..Marvin Borner
idk why
2020-05-12Fixed page fault in schedulerMarvin Borner
2020-05-11Fixed process name and added process tree printMarvin Borner
2020-05-11Some scheduling improvementsMarvin Borner
And other stuff..
2020-05-11Added quantum 42 counter!Marvin Borner
Wow, this commit message sounds click-baity.. BUT this is what I implemented!
2020-05-11Some very small fixes in several filesMarvin Borner
2020-05-10Added basic spinlockMarvin Borner
2020-05-09Interrupt analysis - removed many useless cli/stiMarvin Borner
2020-05-09Sooooooo many race conditionsMarvin Borner
NEXT: SPINLOCKS!