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How can a 32-bit APIC ID fit inside 4 bits out of an 8-bit IOAPIC destination field?
Reading both the OSDev Wiki article and the Intel documentation about the two different available APIC types that said article links to left me with more questions than answers, specifically when it c...
realkstrawn93
Votes: 0
Answers: 1
Why does Bochs say "No bootable devices found" when I concatenate a kernel to my boot sector?
I am following along with this guide in order to try to write my own (very basic) operating system. I have gotten my boot sector to run with Bochs perfectly fine (I've just tested it with writing to t...
jack101yello
Votes: 0
Answers: 0
Qemu can't boot custom operating system
I followed wiki.osdev.org's bare-bones tutorial and wrote a kernel.c, boot.s and linker.ld file. To speed up the compilation process, I wrote another shell script:
i686-elf-as boot/boot.s -o boot/boot...
Teer 2008
Votes: 0
Answers: 0
Why "GCC" ignores -fno-pic for assembly code
I'm writing an OS and I want to switch to long mode.
The problem is that my cross compiler (x86_64-elf-gcc) is generating position independent code even if I pass the -fno-pic option.
boot.S
/* boot.S...
R0M2
Votes: 0
Answers: 0