commit a583fa241d502cf333371737a60f72f4117ccc4b Author: Quinten Kock Date: Sun Jul 19 04:08:10 2020 +0200 Initial commit diff --git a/.cargo/config b/.cargo/config new file mode 100644 index 0000000..7ac9d04 --- /dev/null +++ b/.cargo/config @@ -0,0 +1,5 @@ +[build] +target = "x86_64-fefos.json" + +[target.'cfg(target_os = "none")'] +runner = "bootimage runner" diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..ea8c4bf --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +/target diff --git a/Cargo.lock b/Cargo.lock new file mode 100644 index 0000000..acfdd38 --- /dev/null +++ b/Cargo.lock @@ -0,0 +1,14 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +[[package]] +name = "bootloader" +version = "0.9.5" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "bb7239572eacd7c74ac0d6c75eb87a615058d6497a667728694e0d32b7bd5a20" + +[[package]] +name = "fefos" +version = "0.1.0" +dependencies = [ + "bootloader", +] diff --git a/Cargo.toml b/Cargo.toml new file mode 100644 index 0000000..16278f8 --- /dev/null +++ b/Cargo.toml @@ -0,0 +1,10 @@ +[package] +name = "fefos" +version = "0.1.0" +authors = ["Quinten Kock "] +edition = "2018" + +# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html + +[dependencies] +bootloader = "0.9.3" diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..da94db9 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,23 @@ +#![no_std] +#![no_main] + +static HELLO: &[u8] = b"Hello Rust!"; + +#[panic_handler] +fn panic(_info: &core::panic::PanicInfo) -> ! { + loop {} +} + +#[no_mangle] +pub extern "C" fn _start() -> ! { + let vga_buffer = 0xb8000 as *mut u8; + + for (i, &byte) in HELLO.iter().enumerate() { + unsafe { + *vga_buffer.offset(i as isize * 2) = byte; + *vga_buffer.offset(i as isize * 2 + 1) = 0xb; + } + } + + loop {} +} diff --git a/x86_64-fefos.json b/x86_64-fefos.json new file mode 100644 index 0000000..23da62b --- /dev/null +++ b/x86_64-fefos.json @@ -0,0 +1,15 @@ +{ + "llvm-target": "x86_64-unknown-none", + "data-layout": "e-m:e-i64:64-f80:128-n8:16:32:64-S128", + "arch": "x86_64", + "target-endian": "little", + "target-pointer-width": "64", + "target-c-int-width": "32", + "os": "none", + "executables": true, + "linker-flavor": "ld.lld", + "linker": "rust-lld", + "panic-strategy": "abort", + "disable-redzone": true, + "features": "-mmx,-sse,+soft-float" +}