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Second part of the LBA fix

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Vladimir 'phcoder' Serbinenko 2009-11-27 13:38:01 +01:00
parent 0d67b44378
commit 6ee8daeead
2 changed files with 6 additions and 0 deletions
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1
ChangeLog.lbafix
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@ -2,4 +2,5 @@
* kern/i386/pc/startup.S (grub_biosdisk_get_diskinfo_int13_extensions):
Ignore return status if CF is cleared.
(grub_biosdisk_get_diskinfo_standard): Likewise.

5
kern/i386/pc/startup.S
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@ -824,6 +824,11 @@ FUNCTION(grub_biosdisk_get_diskinfo_standard)
.code16
movb $0x8, %ah
int $0x13 /* do the operation */
jc noclean2
/* Clean return value if carry isn't set to workaround
some buggy BIOSes. */
xor %ax, %ax
noclean2:
/* check if successful */
testb %ah, %ah
jnz 1f