src/main.zig


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const console = @import("console.zig");

const ALIGN = 1 << 0;
const MEMINFO = 1 << 1;
const MAGIC = 0x1BADB002;
const FLAGS = ALIGN | MEMINFO;

const MultibootHeader = packed struct {
    magic: i32 = MAGIC,
    flags: i32,
    checksum: i32,
};

export var multiboot align(4) linksection(".multiboot") = MultibootHeader{
    .flags = FLAGS,
    .checksum = -(MAGIC + FLAGS),
};

export var stack_bytes: [16 * 1024]u8 align(16) linksection(".bss") = undefined;
const stack_bytes_slice = stack_bytes[0..];

export fn _start() callconv(.Naked) noreturn {
    @call(.{ .stack = stack_bytes_slice }, kmain, .{});

    while (true) {}
}

fn kmain() void {
    console.initialize();
    console.puts("Hello world!");
}