Missing x86 mnemonics and registers (self-hosted backend encoder)

ziglang / zig

General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.

https://ziglang.org

MIT License

34.32k stars 2.51k forks source link

Missing x86 mnemonics and registers (self-hosted backend encoder) #19773

Open Arnau478 opened 5 months ago

Arnau478 commented 5 months ago

There are some assembly instruction mnemonics missing on the x86 backend, specially some CPL0 instructions like cli, sti, wrmsr, rdmsr, hlt, ltr, lidt, iretq, hlt... There are some registers missing too, namely the control registers (cr0, cr2, and so on).

sfiedler0 commented 4 months ago

The int mnemonic is missing too…

It throws an interrupt (for example int $1) and can be really good for testing interrupt handlers in the kernel. So it would be nice if that could be implemented.

I just noticed, inb and outb (and as far as I can see all other ins and outs) are missing, so debug logging to UART does not work.