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| author | Andreas Baumann <mail@andreasbaumann.cc> | 2017-06-16 14:53:46 +0200 |
|---|---|---|
| committer | Andreas Baumann <mail@andreasbaumann.cc> | 2017-06-16 14:53:46 +0200 |
| commit | 82eb88e1b48f290680e939bf5597c4b4c494d74f (patch) | |
| tree | d09f061250bc13bd09ff345779a4ba777011b7b9 /src/boot | |
| parent | 071a6d2c84d8c8a3557ab038b5795f4401f20838 (diff) | |
| download | abaos-82eb88e1b48f290680e939bf5597c4b4c494d74f.tar.gz abaos-82eb88e1b48f290680e939bf5597c4b4c494d74f.tar.bz2 | |
paranoia, copy BOOT_DRIVE to every call to read sector
Diffstat (limited to 'src/boot')
| -rw-r--r-- | src/boot/stage2_real_functions.asm | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/boot/stage2_real_functions.asm b/src/boot/stage2_real_functions.asm index 3810963..01584c9 100644 --- a/src/boot/stage2_real_functions.asm +++ b/src/boot/stage2_real_functions.asm @@ -1,7 +1,7 @@ ; number of sectors to be read for the kernel itself ; (note: the first sector gets loaded by the BIOS, the ; next 5 sectors are read by the simple stage 1 loader, -; so subtract 5 here!) +; so subtract 6 here!) NOF_LOAD_SECTORS equ 46 ; data sections used for reading the kernel from disk @@ -140,6 +140,7 @@ read_one_sector_from_disk: mov al, 1 ; read 1 sector mov ch, BYTE [CURRENT_CYLINDER] mov dh, BYTE [CURRENT_HEAD] + mov dl, BYTE [BOOT_DRIVE] mov cl, BYTE [CURRENT_SECTOR] int 0x13 |