26 lines
1.2 KiB
Markdown
26 lines
1.2 KiB
Markdown
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# Development Log
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### 2024-12-16
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- Timer reference: https://popovicu.com/posts/risc-v-interrupts-with-timer-example/
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- Another great general OS reference for RISC-V: https://osblog.stephenmarz.com/
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- Looks like OpenSBI abstracts away UART and some other things, and has a bunch of extensions for managing the hardware. One thing you can do with this is create interrupts. I'm going to try to do this.
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- The goal of setting up the interrupts is to go for a green-thread architecture.
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### 2024-12-06
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- I want to set up some kind of timer-based multitasking.
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- https://github.com/marf/xv6-scheduling
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### 2024-12-05
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- Linker script annoying bug that didn't put .text at the exact address specified. It kept putting .rodata.\* first, so I just added an explicit entry for that to put it later
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- The way the OS communicates with the QEMU terminal using UART
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### 2024-12-04
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- QEMU can automatically create a FAT filesystem on the fly https://qemu-project.gitlab.io/qemu/system/qemu-block-drivers.html#virtual-fat-disk-images
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- https://www.qemu.org/2020/07/03/anatomy-of-a-boot/
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- https://xiayingp.gitbook.io/build_a_os Learning resource
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- Rust version of xv6: https://github.com/Jaic1/xv6-riscv-rust
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