Started conversion to Grub (#17)

Yes, the CI won't like this.

1 files changed, 17 insertions, 0 deletions

diff --git a/kernel/multiboot.c b/kernel/multiboot.c
new file mode 100644
index 0000000..eafe4c5
--- /dev/null
+++ b/kernel/multiboot.c
@@ -0,0 +1,17 @@
+// MIT License, Copyright (c) 2021 Marvin Borner
+
+#include <assert.h>
+#include <def.h>
+#include <multiboot.h>
+
+static struct multiboot_info *info = NULL;
+
+void multiboot_init(u32 magic, u32 addr)
+{
+	assert(magic == MULTIBOOT_MAGIC);
+	info = (void *)addr;
+
+	if (info->flags & MULTIBOOT_INFO_CMDLINE) {
+		printf("CMDLINE: '%s'\n", info->cmdline);
+	}
+}