718006f4e4
Due to the large number of opcodes that the AML VM needs to support, using a long switch statement will not be as performant as setting up a jump table due to the way that the go compiler generates code for long switch statements on integer values (asm code indicates that binary search is used to select the switch target). For the time being, the populateJumpTable method will assign a placeholder function to each jump table entry that just returns a "opcode X not implemented error".
gopher-os
The goal of this project is to build a 64-bit POSIX-compliant tick-less kernel with a Linux-compatible syscall implementation using Go.
This project is not about building yet another OS but rather exists to serve as proof that Go is indeed a suitable tool for writing low level code that runs at ring-0.
Note: This project is still in the early stages of development and is not yet
in a usable state. In fact, if you build the ISO and boot it, the kernel will
eventually panic with a Kmain returned error.
To find out more about the current project status and feature roadmap take a look at the status page.
Building and running gopher-os
TLDR version: make run-qemu or make run-vbox.
A detailed guide about building, running and debugging gopher-os on Linux/OSX as well as the list of supported boot command line options are available here.
How does it look?
80x25 (stadard 8x16 font):
1024x768 (10x18 font):
2560x1600 (14x28 font):
Contributing
gopher-os is Open Source. Feel free to contribute! To get started take a look at the contributing guide.
Licence
gopher-os is distributed under the MIT license.