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src/multiboot.h

@@ -0,0 +1,58 @@
+#pragma once
+#include <stdint.h>
+
+typedef struct multiboot_info
+{
+    uint32_t flags; // required
+
+    // Available if flags[0] is set
+    uint32_t mem_lower;
+    uint32_t mem_upper;
+
+    // Available if flags[1] is set
+    uint32_t boot_device;
+
+    // Available if flags[2] is set
+    uint32_t cmdline;
+
+    // Available if flags[3] is set
+    uint32_t mods_count;
+    uint32_t mods_addr;
+
+    // Available if flags[4] or flags[5] is set
+    uint8_t syms[16]; // 28 - 40 bytes, exact layout may differ depending on a.out or ELF
+
+    // Available if flags[6] is set
+    uint32_t mmap_length;
+    uint32_t mmap_addr;
+
+    // Available if flags[7] is set
+    uint32_t drives_length;
+    uint32_t drives_addr;
+
+    // Available if flags[8] is set
+    uint32_t config_table;
+
+    // Available if flags[9] is set
+    uint32_t boot_loader_name;
+
+    // Available if flags[10] is set
+    uint32_t apm_table;
+
+    // Available if flags[11] is set
+    uint32_t vbe_control_info;
+    uint32_t vbe_mode_info;
+    uint16_t vbe_mode;
+    uint16_t vbe_interface_seg;
+    uint16_t vbe_interface_off;
+    uint16_t vbe_interface_len;
+
+    // Available if flags[12] is set
+    uint64_t framebuffer_addr; // 64-bit for large memory addresses
+    uint32_t framebuffer_pitch;
+    uint32_t framebuffer_width;
+    uint32_t framebuffer_height;
+    uint8_t framebuffer_bpp;
+    uint8_t framebuffer_type;
+    uint8_t color_info[6]; // 110-115 bytes
+} __attribute__((packed)) multiboot_info_t;