Some unfinished changes + TODO chnages

2025-03-18 20:40:29 +01:00
parent 244b83d370
commit 883cd5c1d4
11 changed files with 333 additions and 205 deletions
@@ -0,0 +1,47 @@
+#include <bootloader.h>
+#include <multiboot.h>
+#include <kernel.h>
+
+struct boot_info bootloader = { 0 };
+
+int boot_init(int type, ...) {
+	va_list args;
+	va_start(args, type);
+
+	switch (type) {
+	case BOOT_UNKNOWN: 	return 1;
+	case BOOT_MB1:		return boot_init_mb1(va_arg(args, void*), va_arg(args, uint32_t));
+	case BOOT_MB2:		return 1;
+	case BOOT_LIMINE:	return 1;
+	}
+
+	// We got an invalid boot protocol
+	return 1;
+}
+
+int boot_init_mb1(void* ptr, uint32_t magic) {
+	multiboot_info_t* mbi = ptr;
+
+	if (magic != 0xBADB002) return 1;
+
+	// Memory info
+	if (mbi->flags & MULTIBOOT_INFO_MEMORY) {
+		bootloader.memLower = mbi->mem_lower;
+		bootloader.memUpper = mbi->mem_upper;
+	}
+
+	// Memory map
+	if (mbi->flags & MULTIBOOT_INFO_MEM_MAP) {
+		uint32_t memmap = mbi->mmap_addr;
+		uint32_t offset = 0;
+		while (offset < mbi->mmap_length) {
+			multiboot_memory_map_t* entry = (multiboot_memory_map_t*)(memmap + offset);
+			offset += entry->size;
+
+			
+		}
+	}
+
+	return 0;
+}
+