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-rw-r--r--arch/x86/boot/bootsect.s3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/boot/bootsect.s b/arch/x86/boot/bootsect.s
index 5932445..3410131 100644
--- a/arch/x86/boot/bootsect.s
+++ b/arch/x86/boot/bootsect.s
@@ -8,6 +8,7 @@
.set CODESEG, gdt_code - gdt_start
.set DATASEG, gdt_data - gdt_start
+.set SYSSEG, 0x1000 # Historical load address
.set MAGIC, 0xAA55
.section .text.bootentry # Code that will start executing at
@@ -38,7 +39,7 @@ load_kernel: # Load our kernel
mov $0x02, %cl # Select sector 2 (next after the
# boot sector) [has a base of 1]
mov $0x01, %al # Read 1 sectors
- mov $0x9000, %bx # Load sectors to ES:BS (0x9000)
+ mov $SYSSEG, %bx # Load sectors to ES:BX (0:$SYSSEG)
int $0x13 # Start reading from drive
jc disk_error # If carry flag set, bios failed to read