Detab in DuetPkg
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9170 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qhuang8
@@ -129,7 +129,7 @@ BootSectorEntryPoint:
|
||||
xorw %bx, %bx
|
||||
|
||||
FindEFILDR:
|
||||
cmpl $LOADER_FILENAME_PART1, (%di) # Compare to "EFIL"
|
||||
cmpl $LOADER_FILENAME_PART1, (%di) # Compare to "EFIL"
|
||||
jne FindVARSTORE
|
||||
cmpl $LOADER_FILENAME_PART2, 4(%di)
|
||||
jne FindVARSTORE
|
||||
|
||||
@@ -119,7 +119,7 @@ BootSectorEntryPoint:
|
||||
|
||||
FindEFILDR:
|
||||
cmpl $LOADER_FILENAME_PART1, (%di) # Compare to "EFIL"
|
||||
jne FindVARSTORE
|
||||
jne FindVARSTORE
|
||||
cmpl $LOADER_FILENAME_PART2, 4(%di)
|
||||
jne FindVARSTORE
|
||||
cmpl $LOADER_FILENAME_PART3, 7(%di)
|
||||
|
||||
@@ -59,7 +59,7 @@ Start:
|
||||
LOOP_1: # loop through all IDT entries exception handlers and initialize to default handler
|
||||
movw %bx, (%edi) # write bits 15..0 of offset
|
||||
movw $0x20, 2(%edi) # SYS_CODE_SEL from GDT
|
||||
movw $(0x0e00 | 0x8000), 4(%edi) # type = 386 interrupt gate, present
|
||||
movw $(0x0e00 | 0x8000), 4(%edi) # type = 386 interrupt gate, present
|
||||
movw %ax, 6(%edi) # write bits 31..16 of offset
|
||||
addl $8, %edi # move up to next descriptor
|
||||
addw DEFAULT_HANDLER_SIZE, %bx # move to next entry point
|
||||
|
||||
@@ -32,8 +32,8 @@
|
||||
# within 255 bytes of the common entry. This must
|
||||
# be done to maintain the consistency of the size
|
||||
# of entry points...
|
||||
.byte 0xe9 # jmp 16 bit relative
|
||||
.long commonIdtEntry - . - 4 # offset to jump to
|
||||
.byte 0xe9 # jmp 16 bit relative
|
||||
.long commonIdtEntry - . - 4 # offset to jump to
|
||||
.endm
|
||||
|
||||
|
||||
@@ -56,21 +56,21 @@ Start:
|
||||
call ClearScreen
|
||||
|
||||
# Populate IDT with meaningful offsets for exception handlers...
|
||||
sidt Idtr
|
||||
|
||||
sidt Idtr
|
||||
|
||||
|
||||
movl Halt, %eax
|
||||
movl Halt, %eax
|
||||
movl %eax,%ebx # use bx to copy 15..0 to descriptors
|
||||
shrl $16,%eax # use ax to copy 31..16 to descriptors
|
||||
# 63..32 of descriptors is 0
|
||||
movl $0x78,%ecx # 78h IDT entries to initialize with unique entry points (exceptions)
|
||||
movl (Idtr + 2), %esi
|
||||
movl (Idtr + 2), %esi
|
||||
movl (%esi),%edi
|
||||
|
||||
LOOP_1: # loop through all IDT entries exception handlers and initialize to default handler
|
||||
movw %bx, (%edi) # write bits 15..0 of offset
|
||||
movw $0x38, 2(%edi) # SYS_CODE_SEL64 from GDT
|
||||
movw $(0x0e00 | 0x8000), 4(%edi) # type = 386 interrupt gate, present
|
||||
movw $(0x0e00 | 0x8000), 4(%edi) # type = 386 interrupt gate, present
|
||||
movw %ax, 6(%edi) # write bits 31..16 of offset
|
||||
movl $0, 8(%edi) # write bits 31..16 of offset
|
||||
addl $16, %edi # move up to next descriptor
|
||||
@@ -123,12 +123,12 @@ LOOP_1: # loop through all IDT entries e
|
||||
movl 0x30(%ebp),%edi # edi = [[22000 + [22014] + 3c] + 2c] = ImageBase (63..32 is zero, ignore)
|
||||
movl 0x28(%ebp),%eax # eax = [[22000 + [22014] + 3c] + 24] = EntryPoint
|
||||
addl %edi,%eax # eax = ImageBase + EntryPoint
|
||||
movl %ebx, EfiLdrOffset
|
||||
movl %ebx, EfiLdrOffset
|
||||
movl %eax, (%ebx) # Modify far jump instruction for correct entry point
|
||||
|
||||
movw 6(%ebp), %bx # bx = Number of sections
|
||||
movw 6(%ebp), %bx # bx = Number of sections
|
||||
xorl %eax,%eax
|
||||
movw 0x14(%ebp), %ax # ax = Optional Header Size
|
||||
movw 0x14(%ebp), %ax # ax = Optional Header Size
|
||||
addl %eax,%ebp
|
||||
addl $0x18,%ebp # ebp = Start of 1st Section
|
||||
|
||||
@@ -155,12 +155,12 @@ SectionLoop:
|
||||
cmpw $0,%bx
|
||||
jne SectionLoop
|
||||
|
||||
movl (Idtr), %eax # get size of IDT
|
||||
movzx (%edx), %eax
|
||||
movl (Idtr), %eax # get size of IDT
|
||||
movzx (%edx), %eax
|
||||
.byte 0xff
|
||||
.byte 0xc0
|
||||
# inc eax
|
||||
addl 2(%edx), %eax # add to base of IDT to get location of memory map...
|
||||
addl 2(%edx), %eax # add to base of IDT to get location of memory map...
|
||||
xorl %ecx,%ecx
|
||||
movl %eax,%ecx # put argument to RCX
|
||||
|
||||
@@ -379,11 +379,11 @@ commonIdtEntry:
|
||||
ja PrintDefaultString
|
||||
PrintExceptionString:
|
||||
shll $3,%eax ## multiply by 8 to get offset from StringTable to actual string address
|
||||
addl StringTable, %eax
|
||||
addl StringTable, %eax
|
||||
movl (%eax),%esi
|
||||
jmp PrintTheString
|
||||
PrintDefaultString:
|
||||
movl IntUnknownString, %esi
|
||||
movl IntUnknownString, %esi
|
||||
# patch Int number
|
||||
movl %eax,%edx
|
||||
call A2C
|
||||
@@ -394,35 +394,35 @@ PrintDefaultString:
|
||||
movb %al,(%esi)
|
||||
PrintTheString:
|
||||
call PrintString
|
||||
movl String2, %esi
|
||||
movl String2, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 19*8(%ebp),%eax # CS
|
||||
call PrintQword
|
||||
movb $':', %al
|
||||
movb %al, (%edi)
|
||||
movb %al, (%edi)
|
||||
addl $2,%edi
|
||||
.byte 0x48
|
||||
movl 18*8(%ebp),%eax # RIP
|
||||
call PrintQword
|
||||
movl String3, %esi
|
||||
movl String3, %esi
|
||||
call PrintString
|
||||
|
||||
movl $0xb8140,%edi
|
||||
|
||||
movl StringRax, %esi
|
||||
movl StringRax, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 15*8(%ebp),%eax
|
||||
call PrintQword
|
||||
|
||||
movl StringRcx, %esi
|
||||
movl StringRcx, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 14*8(%ebp),%eax
|
||||
call PrintQword
|
||||
|
||||
movl StringRdx, %esi
|
||||
movl StringRdx, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 13*8(%ebp),%eax
|
||||
@@ -430,19 +430,19 @@ PrintTheString:
|
||||
|
||||
movl $0xb81e0,%edi
|
||||
|
||||
movl StringRbx, %esi
|
||||
movl StringRbx, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 12*8(%ebp),%eax
|
||||
call PrintQword
|
||||
|
||||
movl StringRsp, %esi
|
||||
movl StringRsp, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 21*8(%ebp),%eax
|
||||
call PrintQword
|
||||
|
||||
movl StringRbp, %esi
|
||||
movl StringRbp, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 10*8(%ebp),%eax
|
||||
@@ -450,19 +450,19 @@ PrintTheString:
|
||||
|
||||
movl $0xb8280,%edi
|
||||
|
||||
movl StringRsi, %esi
|
||||
movl StringRsi, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 9*8(%ebp),%eax
|
||||
call PrintQword
|
||||
|
||||
movl StringRdi, %esi
|
||||
movl StringRdi, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 8*8(%ebp),%eax
|
||||
call PrintQword
|
||||
|
||||
movl StringEcode, %esi
|
||||
movl StringEcode, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 17*8(%ebp),%eax
|
||||
@@ -470,19 +470,19 @@ PrintTheString:
|
||||
|
||||
movl $0xb8320,%edi
|
||||
|
||||
movl StringR8, %esi
|
||||
movl StringR8, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 7*8(%ebp),%eax
|
||||
call PrintQword
|
||||
|
||||
movl StringR9, %esi
|
||||
movl StringR9, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 6*8(%ebp),%eax
|
||||
call PrintQword
|
||||
|
||||
movl StringR10, %esi
|
||||
movl StringR10, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 5*8(%ebp),%eax
|
||||
@@ -490,19 +490,19 @@ PrintTheString:
|
||||
|
||||
movl $0xb83c0,%edi
|
||||
|
||||
movl StringR11, %esi
|
||||
movl StringR11, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 4*8(%ebp),%eax
|
||||
call PrintQword
|
||||
|
||||
movl StringR12, %esi
|
||||
movl StringR12, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 3*8(%ebp),%eax
|
||||
call PrintQword
|
||||
|
||||
movl StringR13, %esi
|
||||
movl StringR13, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 2*8(%ebp),%eax
|
||||
@@ -510,19 +510,19 @@ PrintTheString:
|
||||
|
||||
movl $0xb8460,%edi
|
||||
|
||||
movl StringR14, %esi
|
||||
movl StringR14, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 1*8(%ebp),%eax
|
||||
call PrintQword
|
||||
|
||||
movl StringR15, %esi
|
||||
movl StringR15, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 0*8(%ebp),%eax
|
||||
call PrintQword
|
||||
|
||||
movl StringSs, %esi
|
||||
movl StringSs, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 22*8(%ebp),%eax
|
||||
@@ -530,7 +530,7 @@ PrintTheString:
|
||||
|
||||
movl $0xb8500,%edi
|
||||
|
||||
movl StringRflags, %esi
|
||||
movl StringRflags, %esi
|
||||
call PrintString
|
||||
.byte 0x48
|
||||
movl 20*8(%ebp),%eax
|
||||
@@ -554,7 +554,7 @@ InnerLoop:
|
||||
movl (%esi),%eax
|
||||
call PrintQword
|
||||
addl $8,%esi
|
||||
mov $0x00, %al
|
||||
mov $0x00, %al
|
||||
movb %al,(%edi)
|
||||
addl $2,%edi
|
||||
loop InnerLoop
|
||||
@@ -585,7 +585,7 @@ InnerLoop1:
|
||||
movl (%esi),%eax
|
||||
call PrintQword
|
||||
addl $8,%esi
|
||||
movb $0x00, %al
|
||||
movb $0x00, %al
|
||||
movb %al,(%edi)
|
||||
addl $2,%edi
|
||||
loop InnerLoop1
|
||||
@@ -652,10 +652,10 @@ LN_C1:
|
||||
PrintString:
|
||||
pushl %eax
|
||||
LN_C2:
|
||||
movb (%esi), %al
|
||||
movb (%esi), %al
|
||||
cmpb $0,%al
|
||||
je LN_C3
|
||||
movb %al, (%edi)
|
||||
movb %al, (%edi)
|
||||
.byte 0xff
|
||||
.byte 0xc6
|
||||
# inc esi
|
||||
@@ -687,7 +687,7 @@ looptop:
|
||||
jle @f
|
||||
addb $7,%bl
|
||||
@@:
|
||||
movb %bl, (%edi)
|
||||
movb %bl, (%edi)
|
||||
addl $2,%edi
|
||||
loop looptop
|
||||
#wbinvd
|
||||
@@ -701,12 +701,12 @@ ClearScreen:
|
||||
pushl %eax
|
||||
pushl %ecx
|
||||
|
||||
movb $0x00, %al
|
||||
movb $0x00, %al
|
||||
movb $0xc,%ah
|
||||
movl $0xb8000,%edi
|
||||
movl $80*24,%ecx
|
||||
LN_C4:
|
||||
movw %ax, (%edi)
|
||||
movw %ax, (%edi)
|
||||
addl $2,%edi
|
||||
loop LN_C4
|
||||
movl $0xb8000,%edi
|
||||
|
||||
@@ -74,7 +74,7 @@ BootSectorEntryPoint:
|
||||
NoVarStore:
|
||||
pushw %es
|
||||
# Set the 5th byte start @ 0:19000 to non-zero indicating we should init var store header in DxeIpl
|
||||
movb %al, %es:(4)
|
||||
movb %al, %es:(4)
|
||||
jmp SaveVolumeId
|
||||
|
||||
CheckVarStoreSize:
|
||||
@@ -232,7 +232,7 @@ ReadCylinderLoop:
|
||||
movw $0x7bfc,%bp # bp = 0x7bfc
|
||||
movl %esi,%eax # eax = Start LBA
|
||||
xorl %edx,%edx # edx = 0
|
||||
movzwl (%bp), %ebx # bx = MaxSector
|
||||
movzwl (%bp), %ebx # bx = MaxSector
|
||||
divl %ebx # ax = StartLBA / MaxSector
|
||||
incw %dx # dx = (StartLBA % MaxSector) + 1
|
||||
|
||||
@@ -354,7 +354,7 @@ MemMapLoop:
|
||||
MemMapDone:
|
||||
leal MemoryMap, %eax
|
||||
subl %eax,%edi # Get the address of the memory map
|
||||
movl %edi, MemoryMapSize # Save the size of the memory map
|
||||
movl %edi, MemoryMapSize # Save the size of the memory map
|
||||
|
||||
xorl %ebx,%ebx
|
||||
movw %cs,%bx # BX=segment
|
||||
@@ -416,7 +416,7 @@ A20GateEnabled:
|
||||
|
||||
leal OffsetIn32BitProtectedMode, %eax
|
||||
addl $0x20000+0x6,%eax
|
||||
movl %eax, OffsetIn32BitProtectedMode
|
||||
movl %eax, OffsetIn32BitProtectedMode
|
||||
|
||||
leal OffsetInLongMode, %eax
|
||||
addl $0x20000+0x6,%eax
|
||||
@@ -582,7 +582,7 @@ Empty8042Loop:
|
||||
|
||||
.p2align 1
|
||||
|
||||
gdtr: .long GDT_END - GDT_BASE - 1 # GDT limit
|
||||
gdtr: .long GDT_END - GDT_BASE - 1 # GDT limit
|
||||
.long 0 # (GDT base gets set above)
|
||||
##############################################################################
|
||||
# global descriptor table (GDT)
|
||||
@@ -701,366 +701,366 @@ idtr: .long IDT_END - IDT_BASE - 1 # IDT limit
|
||||
IDT_BASE:
|
||||
# divide by zero (INT 0)
|
||||
.equ DIV_ZERO_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# debug exception (INT 1)
|
||||
.equ DEBUG_EXCEPT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# NMI (INT 2)
|
||||
.equ NMI_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# soft breakpoint (INT 3)
|
||||
.equ BREAKPOINT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# overflow (INT 4)
|
||||
.equ OVERFLOW_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# bounds check (INT 5)
|
||||
.equ BOUNDS_CHECK_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# invalid opcode (INT 6)
|
||||
.equ INVALID_OPCODE_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# device not available (INT 7)
|
||||
.equ DEV_NOT_AVAIL_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# double fault (INT 8)
|
||||
.equ DOUBLE_FAULT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# Coprocessor segment overrun - reserved (INT 9)
|
||||
.equ RSVD_INTR_SEL1, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# invalid TSS (INT 0ah)
|
||||
.equ INVALID_TSS_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# segment not present (INT 0bh)
|
||||
.equ SEG_NOT_PRESENT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# stack fault (INT 0ch)
|
||||
.equ STACK_FAULT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# general protection (INT 0dh)
|
||||
.equ GP_FAULT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# page fault (INT 0eh)
|
||||
.equ PAGE_FAULT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# Intel reserved - do not use (INT 0fh)
|
||||
.equ RSVD_INTR_SEL2, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# floating point error (INT 10h)
|
||||
.equ FLT_POINT_ERR_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# alignment check (INT 11h)
|
||||
.equ ALIGNMENT_CHECK_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# machine check (INT 12h)
|
||||
.equ MACHINE_CHECK_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# SIMD floating-point exception (INT 13h)
|
||||
.equ SIMD_EXCEPTION_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# 85 unspecified descriptors, First 12 of them are reserved, the rest are avail
|
||||
.fill 85 * 16, 1, 0 # db (85 * 16) dup(0)
|
||||
.fill 85 * 16, 1, 0 # db (85 * 16) dup(0)
|
||||
|
||||
# IRQ 0 (System timer) - (INT 68h)
|
||||
.equ IRQ0_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 1 (8042 Keyboard controller) - (INT 69h)
|
||||
.equ IRQ1_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# Reserved - IRQ 2 redirect (IRQ 2) - DO NOT USE!!! - (INT 6ah)
|
||||
.equ IRQ2_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 3 (COM 2) - (INT 6bh)
|
||||
.equ IRQ3_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 4 (COM 1) - (INT 6ch)
|
||||
.equ IRQ4_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 5 (LPT 2) - (INT 6dh)
|
||||
.equ IRQ5_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 6 (Floppy controller) - (INT 6eh)
|
||||
.equ IRQ6_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 7 (LPT 1) - (INT 6fh)
|
||||
.equ IRQ7_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 8 (RTC Alarm) - (INT 70h)
|
||||
.equ IRQ8_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 9 - (INT 71h)
|
||||
.equ IRQ9_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 10 - (INT 72h)
|
||||
.equ IRQ10_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 11 - (INT 73h)
|
||||
.equ IRQ11_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 12 (PS/2 mouse) - (INT 74h)
|
||||
.equ IRQ12_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 13 (Floating point error) - (INT 75h)
|
||||
.equ IRQ13_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 14 (Secondary IDE) - (INT 76h)
|
||||
.equ IRQ14_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 15 (Primary IDE) - (INT 77h)
|
||||
.equ IRQ15_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
IDT_END:
|
||||
|
||||
@@ -1101,7 +1101,7 @@ MemoryMap: .long 0,0,0,0,0,0,0,0
|
||||
.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
|
||||
.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
|
||||
|
||||
#.org 0x0fe0 #Just for pass build
|
||||
#.org 0x0fe0 #Just for pass build
|
||||
MyStack:
|
||||
# below is the pieces of the IVT that is used to redirect INT 68h - 6fh
|
||||
# back to INT 08h - 0fh when in real mode... It is 'org'ed to a
|
||||
@@ -1133,7 +1133,7 @@ MyStack:
|
||||
iret
|
||||
|
||||
|
||||
#.org 0x0ffe #Just for pass build
|
||||
#.org 0x0ffe #Just for pass build
|
||||
BlockSignature:
|
||||
.word 0xaa55
|
||||
|
||||
|
||||
@@ -89,7 +89,7 @@ BootSectorEntryPoint:
|
||||
NoVarStore:
|
||||
pushw %es
|
||||
# Set the 5th byte start @ 0:19000 to non-zero indicating we should init var store header in DxeIpl
|
||||
movb %al, %es:(4)
|
||||
movb %al, %es:(4)
|
||||
jmp SaveVolumeId
|
||||
|
||||
CheckVarStoreSize:
|
||||
@@ -247,7 +247,7 @@ ReadCylinderLoop:
|
||||
movw $0x7bfc,%bp # bp = 0x7bfc
|
||||
movl %esi,%eax # eax = Start LBA
|
||||
xorl %edx,%edx # edx = 0
|
||||
movzwl (%bp), %ebx # bx = MaxSector
|
||||
movzwl (%bp), %ebx # bx = MaxSector
|
||||
divl %ebx # ax = StartLBA / MaxSector
|
||||
incw %dx # dx = (StartLBA % MaxSector) + 1
|
||||
|
||||
@@ -369,7 +369,7 @@ MemMapLoop:
|
||||
MemMapDone:
|
||||
leal MemoryMap, %eax
|
||||
subl %eax,%edi # Get the address of the memory map
|
||||
movl %edi, MemoryMapSize # Save the size of the memory map
|
||||
movl %edi, MemoryMapSize # Save the size of the memory map
|
||||
|
||||
xorl %ebx,%ebx
|
||||
movw %cs,%bx # BX=segment
|
||||
@@ -431,7 +431,7 @@ A20GateEnabled:
|
||||
|
||||
leal OffsetIn32BitProtectedMode, %eax
|
||||
addl $0x20000+0x6,%eax
|
||||
movl %eax, OffsetIn32BitProtectedMode
|
||||
movl %eax, OffsetIn32BitProtectedMode
|
||||
|
||||
leal OffsetInLongMode, %eax
|
||||
addl $0x20000+0x6,%eax
|
||||
@@ -597,7 +597,7 @@ Empty8042Loop:
|
||||
|
||||
.p2align 1
|
||||
|
||||
gdtr: .long GDT_END - GDT_BASE - 1 # GDT limit
|
||||
gdtr: .long GDT_END - GDT_BASE - 1 # GDT limit
|
||||
.long 0 # (GDT base gets set above)
|
||||
##############################################################################
|
||||
# global descriptor table (GDT)
|
||||
@@ -716,366 +716,366 @@ idtr: .long IDT_END - IDT_BASE - 1 # IDT limit
|
||||
IDT_BASE:
|
||||
# divide by zero (INT 0)
|
||||
.equ DIV_ZERO_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# debug exception (INT 1)
|
||||
.equ DEBUG_EXCEPT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# NMI (INT 2)
|
||||
.equ NMI_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# soft breakpoint (INT 3)
|
||||
.equ BREAKPOINT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# overflow (INT 4)
|
||||
.equ OVERFLOW_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# bounds check (INT 5)
|
||||
.equ BOUNDS_CHECK_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# invalid opcode (INT 6)
|
||||
.equ INVALID_OPCODE_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# device not available (INT 7)
|
||||
.equ DEV_NOT_AVAIL_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# double fault (INT 8)
|
||||
.equ DOUBLE_FAULT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# Coprocessor segment overrun - reserved (INT 9)
|
||||
.equ RSVD_INTR_SEL1, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# invalid TSS (INT 0ah)
|
||||
.equ INVALID_TSS_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# segment not present (INT 0bh)
|
||||
.equ SEG_NOT_PRESENT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# stack fault (INT 0ch)
|
||||
.equ STACK_FAULT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# general protection (INT 0dh)
|
||||
.equ GP_FAULT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# page fault (INT 0eh)
|
||||
.equ PAGE_FAULT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# Intel reserved - do not use (INT 0fh)
|
||||
.equ RSVD_INTR_SEL2, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# floating point error (INT 10h)
|
||||
.equ FLT_POINT_ERR_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# alignment check (INT 11h)
|
||||
.equ ALIGNMENT_CHECK_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# machine check (INT 12h)
|
||||
.equ MACHINE_CHECK_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# SIMD floating-point exception (INT 13h)
|
||||
.equ SIMD_EXCEPTION_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# 85 unspecified descriptors, First 12 of them are reserved, the rest are avail
|
||||
.fill 85 * 16, 1, 0 # db (85 * 16) dup(0)
|
||||
.fill 85 * 16, 1, 0 # db (85 * 16) dup(0)
|
||||
|
||||
# IRQ 0 (System timer) - (INT 68h)
|
||||
.equ IRQ0_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 1 (8042 Keyboard controller) - (INT 69h)
|
||||
.equ IRQ1_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# Reserved - IRQ 2 redirect (IRQ 2) - DO NOT USE!!! - (INT 6ah)
|
||||
.equ IRQ2_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 3 (COM 2) - (INT 6bh)
|
||||
.equ IRQ3_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 4 (COM 1) - (INT 6ch)
|
||||
.equ IRQ4_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 5 (LPT 2) - (INT 6dh)
|
||||
.equ IRQ5_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 6 (Floppy controller) - (INT 6eh)
|
||||
.equ IRQ6_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 7 (LPT 1) - (INT 6fh)
|
||||
.equ IRQ7_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 8 (RTC Alarm) - (INT 70h)
|
||||
.equ IRQ8_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 9 - (INT 71h)
|
||||
.equ IRQ9_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 10 - (INT 72h)
|
||||
.equ IRQ10_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 11 - (INT 73h)
|
||||
.equ IRQ11_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 12 (PS/2 mouse) - (INT 74h)
|
||||
.equ IRQ12_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 13 (Floating point error) - (INT 75h)
|
||||
.equ IRQ13_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 14 (Secondary IDE) - (INT 76h)
|
||||
.equ IRQ14_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 15 (Primary IDE) - (INT 77h)
|
||||
.equ IRQ15_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
IDT_END:
|
||||
|
||||
@@ -1116,7 +1116,7 @@ MemoryMap: .long 0,0,0,0,0,0,0,0
|
||||
.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
|
||||
.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
|
||||
|
||||
#.org 0x0fe0 #Just for pass build
|
||||
#.org 0x0fe0 #Just for pass build
|
||||
MyStack:
|
||||
# below is the pieces of the IVT that is used to redirect INT 68h - 6fh
|
||||
# back to INT 08h - 0fh when in real mode... It is 'org'ed to a
|
||||
@@ -1148,7 +1148,7 @@ MyStack:
|
||||
iret
|
||||
|
||||
|
||||
#.org 0x0ffe #Just for pass build
|
||||
#.org 0x0ffe #Just for pass build
|
||||
BlockSignature:
|
||||
.word 0xaa55
|
||||
|
||||
|
||||
@@ -18,7 +18,7 @@
|
||||
.stack:
|
||||
.486p:
|
||||
.code16
|
||||
|
||||
|
||||
.equ FAT_DIRECTORY_ENTRY_SIZE, 0x020
|
||||
.equ FAT_DIRECTORY_ENTRY_SHIFT, 5
|
||||
.equ BLOCK_SIZE, 0x0200
|
||||
@@ -715,7 +715,7 @@ IDT_BASE:
|
||||
.word 0 # offset 31:16
|
||||
|
||||
# 85 unspecified descriptors, First 12 of them are reserved, the rest are avail
|
||||
.fill 85 * 8, 1, 0 # db (85 * 8) dup(0)
|
||||
.fill 85 * 8, 1, 0 # db (85 * 8) dup(0)
|
||||
|
||||
# IRQ 0 (System timer) - (INT 0x68)
|
||||
.equ IRQ0_SEL, .-IDT_BASE
|
||||
|
||||
@@ -54,7 +54,7 @@ SystemId: .ascii "FAT12 " # SystemId - 8 bytes
|
||||
|
||||
BootSectorEntryPoint:
|
||||
# ASSUME ds:@code"
|
||||
# ASSUME ss:@code"
|
||||
# ASSUME ss:@code"
|
||||
# ds = 1000, es = 2000 + x (size of first cluster >> 4)
|
||||
# cx = Start Cluster of EfiLdr
|
||||
# dx = Start Cluster of Efivar.bin
|
||||
@@ -74,7 +74,7 @@ BootSectorEntryPoint:
|
||||
NoVarStore:
|
||||
pushw %es
|
||||
# Set the 5th byte start @ 0:19000 to non-zero indicating we should init var store header in DxeIpl
|
||||
movb %al, %es:(4)
|
||||
movb %al, %es:(4)
|
||||
jmp SaveVolumeId
|
||||
|
||||
CheckVarStoreSize:
|
||||
@@ -86,7 +86,7 @@ CheckVarStoreSize:
|
||||
LoadVarStore:
|
||||
movb $0,%al
|
||||
movb %al, %es:(4)
|
||||
movw (%di), %cx
|
||||
movw (%di), %cx
|
||||
# ES:DI = 1500:0
|
||||
xorw %di,%di
|
||||
pushw %es
|
||||
@@ -98,7 +98,7 @@ SaveVolumeId:
|
||||
movw VolId(%bp), %ax
|
||||
movw %ax, %es:(0)
|
||||
movw VolId+2(%bp), %ax
|
||||
movw %ax, %es:(2)
|
||||
movw %ax, %es:(2)
|
||||
|
||||
# Read Efildr
|
||||
popw %cx
|
||||
@@ -166,7 +166,7 @@ FatChainLoop:
|
||||
pushw %si # Save si
|
||||
movw %ax,%si # si = FatOffset
|
||||
shrw $BLOCK_SHIFT, %ax # ax = FatOffset >> BLOCK_SHIFT
|
||||
addw ReservedSectors(%bp), %ax # ax = FatSectorNumber = ReservedSectors + (FatOffset >> BLOCK_OFFSET)
|
||||
addw ReservedSectors(%bp), %ax # ax = FatSectorNumber = ReservedSectors + (FatOffset >> BLOCK_OFFSET)
|
||||
andw $BLOCK_MASK, %si # si = FatOffset & BLOCK_MASK
|
||||
cmpw %dx,%ax # Compare FatSectorNumber to CachedFatSectorNumber
|
||||
je SkipFatRead
|
||||
@@ -178,7 +178,7 @@ FatChainLoop:
|
||||
popw %es
|
||||
movw %ax,%dx # CachedFatSectorNumber = FatSectorNumber
|
||||
SkipFatRead:
|
||||
movw (%si), %bx # bx = NextClusterNumber
|
||||
movw (%si), %bx # bx = NextClusterNumber
|
||||
movw %cx,%ax # ax = ClusterNumber
|
||||
andw $1,%ax # See if this is an odd cluster number
|
||||
je EvenFatEntry
|
||||
@@ -200,9 +200,9 @@ ReadClusters:
|
||||
movw %bx,%cx # ClusterNumber = NextClusterNumber
|
||||
subw $2,%ax # ax = StartCluster - 2
|
||||
xorb %bh,%bh
|
||||
movb SectorsPerCluster(%bp), %bl # bx = SectorsPerCluster
|
||||
movb SectorsPerCluster(%bp), %bl # bx = SectorsPerCluster
|
||||
mulw %bx # ax = (StartCluster - 2) * SectorsPerCluster
|
||||
addw (%bp), %ax # ax = FirstClusterLBA + (StartCluster-2)*SectorsPerCluster
|
||||
addw (%bp), %ax # ax = FirstClusterLBA + (StartCluster-2)*SectorsPerCluster
|
||||
pushw %ax # save start sector
|
||||
movw %si,%ax # ax = NumberOfClusters
|
||||
mulw %bx # ax = NumberOfClusters * SectorsPerCluster
|
||||
@@ -243,7 +243,7 @@ ReadCylinderLoop:
|
||||
divl %ebx # ax = StartLBA / MaxSector
|
||||
incw %dx # dx = (StartLBA % MaxSector) + 1
|
||||
|
||||
movw (%bp), %bx # bx = MaxSector
|
||||
movw (%bp), %bx # bx = MaxSector
|
||||
subw %dx,%bx # bx = MaxSector - Sector
|
||||
incw %bx # bx = MaxSector - Sector + 1
|
||||
cmpw %bx,%cx # Compare (Blocks) to (MaxSector - Sector + 1)
|
||||
@@ -311,11 +311,11 @@ Halt:
|
||||
ErrorString:
|
||||
.byte 'S', 0x0c, 'E', 0x0c, 'r', 0x0c, 'r', 0x0c, 'o', 0x0c, 'r', 0x0c, '!',0x0c
|
||||
|
||||
.org 0x01fa
|
||||
.org 0x01fa
|
||||
LBAOffsetForBootSector:
|
||||
.long 0x0
|
||||
|
||||
.org 0x01fe
|
||||
.org 0x01fe
|
||||
.word 0xaa55
|
||||
|
||||
#******************************************************************************
|
||||
@@ -328,7 +328,7 @@ LBAOffsetForBootSector:
|
||||
.equ WRITE_DATA_PORT_CMD, 0x0d1 # 8042 command to write the data port
|
||||
.equ ENABLE_A20_CMD, 0x0df # 8042 command to enable A20
|
||||
|
||||
.org 0x200
|
||||
.org 0x200
|
||||
jmp start
|
||||
Em64String:
|
||||
.byte 'E', 0x0c, 'm', 0x0c, '6', 0x0c, '4', 0x0c, 'T', 0x0c, ' ', 0x0c, 'U', 0x0c, 'n', 0x0c, 's', 0x0c, 'u', 0x0c, 'p', 0x0c, 'p', 0x0c, 'o', 0x0c, 'r', 0x0c, 't', 0x0c, 'e', 0x0c, 'd', 0x0c, '!', 0x0c
|
||||
@@ -361,7 +361,7 @@ MemMapLoop:
|
||||
MemMapDone:
|
||||
leal MemoryMap, %eax
|
||||
subl %eax,%edi # Get the address of the memory map
|
||||
movl %edi, MemoryMapSize # Save the size of the memory map
|
||||
movl %edi, MemoryMapSize # Save the size of the memory map
|
||||
|
||||
xorl %ebx,%ebx
|
||||
movw %cs,%bx # BX=segment
|
||||
@@ -423,7 +423,7 @@ A20GateEnabled:
|
||||
|
||||
leal OffsetIn32BitProtectedMode, %eax
|
||||
addl $0x20000+0x6,%eax
|
||||
movl %eax, OffsetIn32BitProtectedMode
|
||||
movl %eax, OffsetIn32BitProtectedMode
|
||||
|
||||
leal OffsetInLongMode, %eax
|
||||
addl $0x20000+0x6,%eax
|
||||
@@ -589,7 +589,7 @@ Empty8042Loop:
|
||||
|
||||
.p2align 1
|
||||
|
||||
gdtr: .long GDT_END - GDT_BASE - 1 # GDT limit
|
||||
gdtr: .long GDT_END - GDT_BASE - 1 # GDT limit
|
||||
.long 0 # (GDT base gets set above)
|
||||
##############################################################################
|
||||
# global descriptor table (GDT)
|
||||
@@ -708,366 +708,366 @@ idtr: .long IDT_END - IDT_BASE - 1 # IDT limit
|
||||
IDT_BASE:
|
||||
# divide by zero (INT 0)
|
||||
.equ DIV_ZERO_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# debug exception (INT 1)
|
||||
.equ DEBUG_EXCEPT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# NMI (INT 2)
|
||||
.equ NMI_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# soft breakpoint (INT 3)
|
||||
.equ BREAKPOINT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# overflow (INT 4)
|
||||
.equ OVERFLOW_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# bounds check (INT 5)
|
||||
.equ BOUNDS_CHECK_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# invalid opcode (INT 6)
|
||||
.equ INVALID_OPCODE_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# device not available (INT 7)
|
||||
.equ DEV_NOT_AVAIL_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# double fault (INT 8)
|
||||
.equ DOUBLE_FAULT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# Coprocessor segment overrun - reserved (INT 9)
|
||||
.equ RSVD_INTR_SEL1, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# invalid TSS (INT 0ah)
|
||||
.equ INVALID_TSS_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# segment not present (INT 0bh)
|
||||
.equ SEG_NOT_PRESENT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# stack fault (INT 0ch)
|
||||
.equ STACK_FAULT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# general protection (INT 0dh)
|
||||
.equ GP_FAULT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# page fault (INT 0eh)
|
||||
.equ PAGE_FAULT_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# Intel reserved - do not use (INT 0fh)
|
||||
.equ RSVD_INTR_SEL2, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# floating point error (INT 10h)
|
||||
.equ FLT_POINT_ERR_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# alignment check (INT 11h)
|
||||
.equ ALIGNMENT_CHECK_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# machine check (INT 12h)
|
||||
.equ MACHINE_CHECK_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# SIMD floating-point exception (INT 13h)
|
||||
.equ SIMD_EXCEPTION_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# 85 unspecified descriptors, First 12 of them are reserved, the rest are avail
|
||||
.fill 85 * 16, 1, 0 # db (85 * 16) dup(0)
|
||||
.fill 85 * 16, 1, 0 # db (85 * 16) dup(0)
|
||||
|
||||
# IRQ 0 (System timer) - (INT 68h)
|
||||
.equ IRQ0_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 1 (8042 Keyboard controller) - (INT 69h)
|
||||
.equ IRQ1_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# Reserved - IRQ 2 redirect (IRQ 2) - DO NOT USE!!! - (INT 6ah)
|
||||
.equ IRQ2_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 3 (COM 2) - (INT 6bh)
|
||||
.equ IRQ3_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 4 (COM 1) - (INT 6ch)
|
||||
.equ IRQ4_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 5 (LPT 2) - (INT 6dh)
|
||||
.equ IRQ5_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 6 (Floppy controller) - (INT 6eh)
|
||||
.equ IRQ6_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 7 (LPT 1) - (INT 6fh)
|
||||
.equ IRQ7_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 8 (RTC Alarm) - (INT 70h)
|
||||
.equ IRQ8_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 9 - (INT 71h)
|
||||
.equ IRQ9_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 10 - (INT 72h)
|
||||
.equ IRQ10_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 11 - (INT 73h)
|
||||
.equ IRQ11_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 12 (PS/2 mouse) - (INT 74h)
|
||||
.equ IRQ12_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 13 (Floating point error) - (INT 75h)
|
||||
.equ IRQ13_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 14 (Secondary IDE) - (INT 76h)
|
||||
.equ IRQ14_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
# IRQ 15 (Primary IDE) - (INT 77h)
|
||||
.equ IRQ15_SEL, .-IDT_BASE
|
||||
.word 0 # offset 15:0
|
||||
.word 0 # offset 15:0
|
||||
.long SYS_CODE64_SEL # selector 15:0
|
||||
.byte 0 # 0 for interrupt gate
|
||||
.byte 0x0e | 0x80 # type = 386 interrupt gate, present
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
.word 0 # offset 31:16
|
||||
.long 0 # offset 63:32
|
||||
.long 0 # 0 for reserved
|
||||
|
||||
IDT_END:
|
||||
|
||||
@@ -1108,7 +1108,7 @@ MemoryMap: .long 0,0,0,0,0,0,0,0
|
||||
.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
|
||||
.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
|
||||
|
||||
.org 0x0fe0
|
||||
.org 0x0fe0
|
||||
MyStack:
|
||||
# below is the pieces of the IVT that is used to redirect INT 68h - 6fh
|
||||
# back to INT 08h - 0fh when in real mode... It is 'org'ed to a
|
||||
@@ -1140,7 +1140,7 @@ MyStack:
|
||||
iret
|
||||
|
||||
|
||||
.org 0x0ffe
|
||||
.org 0x0ffe
|
||||
BlockSignature:
|
||||
.word 0xaa55
|
||||
|
||||
|
||||
Reference in New Issue
Block a user