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a20: A20Test is now a dword
author
H. Peter Anvin
<hpa@linux.intel.com>
Tue, 21 Apr 2009 23:12:15 +0000
(16:12 -0700)
committer
H. Peter Anvin
<hpa@linux.intel.com>
Tue, 21 Apr 2009 23:12:15 +0000
(16:12 -0700)
A20Test is now a dword; this makes it less likely that we'll have a
case of false aliasing resulting in the io_delay path being taken.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
core/bcopy32.inc
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diff --git
a/core/bcopy32.inc
b/core/bcopy32.inc
index
f2cc6ca
..
cd89482
100644
(file)
--- a/
core/bcopy32.inc
+++ b/
core/bcopy32.inc
@@
-200,11
+200,12
@@
_io_delay: out IO_DELAY_PORT,al
ret
section .data
- align 2
+ align
z
2
A20Ptr dw a20_dunno
section .bss
-A20Test resw 1 ; Counter for testing A20 status
+ alignb 4
+A20Test resd 1 ; Counter for testing A20 status
A20Tries resb 1 ; Times until giving up on A20
section .text