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

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 $0xb800, %ax
   movw %ax, %es
   movw $0x7c0, %ax
-  movw %ax, %ds
+  movw %ax, %ds
   movw $6, %cx
   movw $160, %di
   rep
@@ -288,15 +288,15 @@ Halt:
 Halt: 
   jmp   Halt
 
-StartString: 
+StartString: 
   .byte 'B', 0x0c, 'S', 0x0c, 't', 0x0c, 'a', 0x0c, 'r', 0x0c, 't', 0x0c
-ErrorString: 
+ErrorString: 
   .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
 LBAOffsetForBootSector: 
   .long     0x0
@@ -304,7 +304,7 @@ LBAOffsetForBootSector:
 # ****************************************************************************
 # Sector Signature
 # ****************************************************************************
-
+
   .org 0x01fe
 SectorSignature: 
   .word     0xaa55      # Boot Sector Signature