fix: correct multiboot2 framebuffer tag layout

Co-authored-by: aider (openrouter/anthropic/claude-opus-4.7) <aider@aider.chat>
2026-05-05 22:27:02 +03:00
parent 29ad4c2835
commit 1d16c23fc5
1 changed files with 6 additions and 6 deletions
@@ -8,18 +8,18 @@ multiboot_header:
    .long multiboot_header_end - multiboot_header
    .long -(0xe85250d6 + 0 + (multiboot_header_end - multiboot_header))

-    /* Framebuffer tag: type=5, prefer RGB 32 bpp */
+    /* Framebuffer tag: type=5, size=20, width=height=0 (any), depth=32.
+     * Layout per multiboot2 spec:
+     *   u16 type, u16 flags, u32 size, u32 width, u32 height, u32 depth
+     * Padded to 8-byte alignment. */
    .align 8
    .word 5
    .word 0
-    .long 32
-    .quad 0
+    .long 20
    .long 0
    .long 0
    .long 32
-    .byte 1
-    .byte 0
-    .word 0
+    .long 0       /* padding to 8-byte alignment */

    .align 8
    .word 0