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audk
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1. Fix some convert issue. 

2. org address changed.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7864 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
gikidy 2009-03-12 02:54:02 +00:00
parent 98a601b177
commit f3fb74cdac
1 changed files with 7 additions and 7 deletions
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14
DuetPkg/BootSector/start.S
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@ -84,7 +84,7 @@ CheckVarStoreSize:
LoadVarStore: LoadVarStore:
movb $0, %al movb $0, %al
movb %al, %es:4 movb %al, %es:(4)
movw (%di), %cx movw (%di), %cx
# ES:DI = 1500:0 # ES:DI = 1500:0
xorw %di, %di xorw %di, %di
@ -95,9 +95,9 @@ LoadVarStore:
SaveVolumeId: SaveVolumeId:
popw %es popw %es
movw VolId(%bp), %ax movw VolId(%bp), %ax
movw %ax, %es:0 # Save Volume Id to 0:19000. we will find the correct volume according to this VolumeId movw %ax, %es:(0) # Save Volume Id to 0:19000. we will find the correct volume according to this VolumeId
movw VolId+2(%bp), %ax movw VolId+2(%bp), %ax
movw %ax, %es:2 movw %ax, %es:(2)
# Read Efildr # Read Efildr
popw %cx popw %cx
@ -239,7 +239,7 @@ ReadCylinderLoop:
LimitTransfer: LimitTransfer:
pushw %ax # save ax pushw %ax # save ax
movw %es, %ax # ax = es movw %es, %ax # ax = es
shrw %ax # ax = Number of blocks into mem system shrw $(BLOCK_SHIFT-4), %ax # ax = Number of blocks into mem system
andw $0x7f, %ax # ax = Number of blocks into current seg andw $0x7f, %ax # ax = Number of blocks into current seg
addw %bx, %ax # ax = End Block number of transfer addw %bx, %ax # ax = End Block number of transfer
cmpw $0x80, %ax # See if it crosses a 64K boundry cmpw $0x80, %ax # See if it crosses a 64K boundry
@ -271,7 +271,7 @@ NotCrossing64KBoundry:
addl %ebx, %esi # StartLBA = StartLBA + NumberOfBlocks addl %ebx, %esi # StartLBA = StartLBA + NumberOfBlocks
subw %bx, %cx # Blocks = Blocks - NumberOfBlocks subw %bx, %cx # Blocks = Blocks - NumberOfBlocks
movw %es, %ax movw %es, %ax
shlw %bx shlw $(BLOCK_SHIFT-4), %bx
addw %bx, %ax addw %bx, %ax
movw %ax, %es # es:di = es:di + NumberOfBlocks*BLOCK_SIZE movw %ax, %es # es:di = es:di + NumberOfBlocks*BLOCK_SIZE
cmpw $0, %cx cmpw $0, %cx
@ -298,11 +298,11 @@ Halt:
ErrorString: ErrorString:
.byte 'S', 0x0c, 'E', 0x0c, 'r', 0x0c, 'r', 0x0c, 'o', 0x0c, 'r', 0x0c, '!',0x0c .byte 'S', 0x0c, 'E', 0x0c, 'r', 0x0c, 'r', 0x0c, 'o', 0x0c, 'r', 0x0c, '!',0x0c
.org 0x0241 # For Code size overflow, Modified this just for pass build .org 0x01fa
LBAOffsetForBootSector: LBAOffsetForBootSector:
.long 0x0 .long 0x0
#.org 0x0227 # For Code size overflow, Modified this just for pass build .org 0x01fe
.word 0xaa55 .word 0xaa55
#****************************************************************************** #******************************************************************************