diff options
| author | Marvin Borner | 2020-06-23 22:22:45 +0200 |
|---|---|---|
| committer | Marvin Borner | 2020-06-23 22:22:45 +0200 |
| commit | 0be389b23505c73cf11bb0df51afe80ef927ec0a (patch) | |
| tree | e2e52fd09cdf5430cb2b0e93cba12181b7a07786 | |
| parent | be9629821a5770af1cfefe6f8c67687f9d0ae8e0 (diff) | |
Added root directory verification
| -rw-r--r-- | src/entry.asm | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/entry.asm b/src/entry.asm index 1445596..afe004c 100644 --- a/src/entry.asm +++ b/src/entry.asm @@ -112,9 +112,14 @@ stage_two: mov si, inode_table_msg call print - ; TODO: File crawling instead of fixed inode + ; Load root dir xor bx, bx + mov ax, bx mov bx, 0x1080 ; First block ((2 - 1) * 128 + dest) + mov ax, word [bx + 0] ; Filetype + and ax, 0x4000 ; Check if dir + cmp ax, 0x4000 + jne disk_error mov cx, [bx + 28] ; Number of sectors for inode lea di, [bx + 40] ; Address of first block pointer |