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| author | rsun3 <rsun3@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-01-13 06:29:44 +0000 |
|---|---|---|
| committer | rsun3 <rsun3@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-01-13 06:29:44 +0000 |
| commit | e7c4ef5ed4a1b14c7514367a5a95e1d9c9e1f090 (patch) | |
| tree | d0b162db1e2d4938028086b1ce93c96f5c58a835 /DuetPkg/BootSector/bs32.S | |
| parent | e8ef42833f45752e7f41c6ad0925209fc36c16ed (diff) | |
| download | edk2-platforms-e7c4ef5ed4a1b14c7514367a5a95e1d9c9e1f090.tar.xz | |
DuetPkg BootSector: fix bugs in .S files so that 32-bit and 64-bit DUET can boot to Shell with boot sector binaries built by GCC.
There is also a bug in bs32.asm/bs32.S that the space between the code and the 0xAA55 ending signature is not enough to hold the 2 debug strings. It is fixed by shortening the strings.
Signed-off-by: rsun3
Reviewed-by: niruiyu
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12930 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'DuetPkg/BootSector/bs32.S')
| -rw-r--r-- | DuetPkg/BootSector/bs32.S | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/DuetPkg/BootSector/bs32.S b/DuetPkg/BootSector/bs32.S index d768518e85..95424f3d69 100644 --- a/DuetPkg/BootSector/bs32.S +++ b/DuetPkg/BootSector/bs32.S @@ -1,6 +1,6 @@ #------------------------------------------------------------------------------
#*
-#* Copyright (c) 2006 - 2007, Intel Corporation. All rights reserved.<BR>
+#* Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
#* This program and the accompanying materials
#* are licensed and made available under the terms and conditions of the BSD License
#* which accompanies this distribution. The full text of the license may be found at
@@ -207,7 +207,7 @@ PrintString: movw %ax, %es
movw $0x7c0, %ax
movw %ax, %ds
- movw $7, %cx
+ movw $6, %cx
movw $160, %di
rep
movsw
@@ -288,15 +288,15 @@ Halt: jmp Halt
StartString:
- .byte 'B', 0x0c, 'S', 0x0c, 't', 0x0c, 'a', 0x0c, 'r', 0x0c, 't', 0x0c, '!', 0x0c
+ .byte 'B', 0x0c, 'S', 0x0c, 't', 0x0c, 'a', 0x0c, 'r', 0x0c, 't', 0x0c
ErrorString:
- .byte 'B', 0x0c, 'E', 0x0c, 'r', 0x0c, 'r', 0x0c, 'o', 0x0c, 'r', 0x0c, '!', 0x0c
+ .byte 'B', 0x0c, 'E', 0x0c, 'r', 0x0c, 'r', 0x0c, 'o', 0x0c, 'r', 0x0c
# ****************************************************************************
# LBA Offset for BootSector, need patched by tool for HD boot.
# ****************************************************************************
- #.org 0x01fa
+ .org 0x01fa
LBAOffsetForBootSector:
.long 0x0
@@ -304,7 +304,7 @@ LBAOffsetForBootSector: # Sector Signature
# ****************************************************************************
- #.org 0x01fe
+ .org 0x01fe
SectorSignature:
.word 0xaa55 # Boot Sector Signature
|