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2022-09-15change syscalls to take 5 params and return 6Kimplul
+ In total, a syscall is built up of 6 values, with the first being the syscall number. Symmetrically, the first value is now a status and the following five values return "values". This allows us to cram in more info into the ipc_* functions. The performance difference is absolutely minimal, at least from my testing in qemu.
2022-09-15add SYS_TICKSKimplul
2022-09-14add putch syscall for easier userspace debuggingKimplul
+ Note that it is NOT intended for end user usage, just for debugging.
2022-09-14riscv32 boots and advances as far as riscv64Kimplul
2022-09-11change external directory structureKimplul
+ Prepare for possibly testing rv32 + Also remove newline from debugging output
2022-09-11allow building with riscv64-linux-gnuKimplul
+ May warn about PHDR not being in LOAD, there is a flag to silence it (--no-warn-rwx-segment) but it doesn't seem to exist in riscv64-unknown-elf for some reason.
2022-09-02reserve more space for fwKimplul
+ Doesn't seem to be specified anywhere, but I'll stick with 2MB for now, working on the assumption that the FW is at the start of the physical RAM. Possible TODOs: generate apos.its automatically from init.elf, allocate root_branch statically?
2022-06-12add license textsKimplul
2022-04-29continue building base for irq handlingKimplul
2022-04-24start initial irq handlingKimplul
+ Still lots todo, and I'm not entirely sure how I should handle program space switches (mainly since the kernel uses the process' stack, maybe it shouldn't?)
2022-01-07Allow building with clangKimplul
+ Release mode is sort of broken, as lto doesn't work with linker relaxation and turning the relaxation off causes issues with the jump from init to kernel (as I've currently implemented it, could probably be fixed with a manual jump from assembly, I'll add it to my TODO list)