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Diffstat (limited to 'src/arch/x86/boot')
-rw-r--r--src/arch/x86/boot/wakeup.S23
1 files changed, 6 insertions, 17 deletions
diff --git a/src/arch/x86/boot/wakeup.S b/src/arch/x86/boot/wakeup.S
index a1df4d5597..8ae337ca5d 100644
--- a/src/arch/x86/boot/wakeup.S
+++ b/src/arch/x86/boot/wakeup.S
@@ -38,23 +38,12 @@ __wakeup:
movw %ax, (__wakeup_segment)
/* Then overwrite coreboot with our backed up memory */
- movl 8(%esp), %esi
- movl 12(%esp), %edi
- movl 16(%esp), %ecx
- shrl $4, %ecx
-1:
- movl 0(%esi),%eax
- movl 4(%esi),%edx
- movl 8(%esi),%ebx
- movl 12(%esi),%ebp
- addl $16,%esi
- subl $1,%ecx
- movl %eax,0(%edi)
- movl %edx,4(%edi)
- movl %ebx,8(%edi)
- movl %ebp,12(%edi)
- leal 16(%edi),%edi
- jne 1b
+ cld
+ movl 8(%esp), %esi
+ movl 12(%esp), %edi
+ movl 16(%esp), %ecx
+ shrl $2, %ecx
+ rep movsl
/* Activate the right segment descriptor real mode. */
ljmp $0x28, $RELOCATED(1f)