#------------------------------------------------------------------------------ | |
#* | |
#* 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 | |
#* http://opensource.org/licenses/bsd-license.php | |
#* | |
#* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
#* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
#* | |
#* efi64.asm | |
#* | |
#* Abstract: | |
#* | |
#------------------------------------------------------------------------------ | |
############################################################################## | |
# Now in 64-bit long mode. | |
############################################################################## | |
.486: | |
.stack: | |
.code: | |
.org 0x21000 | |
.global _start | |
_start: | |
.equ DEFAULT_HANDLER_SIZE, INT1 - INT0 | |
.macro jmpCommonIdtEntry | |
# jmp commonIdtEntry - this must be hand coded to keep the assembler from | |
# using a 8 bit reletive jump when the entries are | |
# 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 | |
.endm | |
Start: | |
movl $0x001fffe8,%esp # make final stack aligned | |
# set OSFXSR and OSXMMEXCPT because some code will use XMM register | |
.byte 0xf | |
.byte 0x20 | |
.byte 0xe0 | |
# mov rax, cr4 | |
btsl $9,%eax | |
btsl $0xa,%eax | |
.byte 0xf | |
.byte 0x22 | |
.byte 0xe0 | |
# mov cr4, rax | |
call ClearScreen | |
# Populate IDT with meaningful offsets for exception handlers... | |
movl $Idtr, %eax | |
sidt (%eax) # get fword address of IDT | |
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 (%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 %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 | |
addw $DEFAULT_HANDLER_SIZE, %bx # move to next entry point | |
loopl LOOP_1 # loop back through again until all descriptors are initialized | |
## at this point edi contains the offset of the descriptor for INT 20 | |
## and bx contains the low 16 bits of the offset of the default handler | |
## so initialize all the rest of the descriptors with these two values... | |
# mov ecx, 101 ; there are 100 descriptors left (INT 20 (14h) - INT 119 (77h) | |
#@@: ; loop through all IDT entries exception handlers and initialize to default handler | |
# mov word ptr [edi], bx ; write bits 15..0 of offset | |
# mov word ptr [edi+2], 38h ; SYS_CODE64_SEL from GDT | |
# mov word ptr [edi+4], 0e00h OR 8000h ; type = 386 interrupt gate, present | |
# mov word ptr [edi+6], ax ; write bits 31..16 of offset | |
# mov dword ptr [edi+8], 0 ; write bits 63..32 of offset | |
# add edi, 16 ; move up to next descriptor | |
# loop @b ; loop back through again until all descriptors are initialized | |
## DUMP location of IDT and several of the descriptors | |
# mov ecx, 8 | |
# mov eax, [offset Idtr + 2] | |
# mov eax, [eax] | |
# mov edi, 0b8000h | |
# call PrintQword | |
# mov esi, eax | |
# mov edi, 0b80a0h | |
# jmp OuterLoop | |
## | |
## just for fun, let's do a software interrupt to see if we correctly land in the exception handler... | |
# mov eax, 011111111h | |
# mov ebx, 022222222h | |
# mov ecx, 033333333h | |
# mov edx, 044444444h | |
# mov ebp, 055555555h | |
# mov esi, 066666666h | |
# mov edi, 077777777h | |
# push 011111111h | |
# push 022222222h | |
# push 033333333h | |
# int 119 | |
movl $0x22000,%esi # esi = 22000 | |
movl 0x14(%esi),%eax # eax = [22014] | |
addl %eax,%esi # esi = 22000 + [22014] = Base of EFILDR.C | |
movl 0x3c(%esi),%ebp # ebp = [22000 + [22014] + 3c] = NT Image Header for EFILDR.C | |
addl %esi,%ebp | |
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 $EfiLdrOffset, %ebx | |
movl %eax, (%ebx) # Modify far jump instruction for correct entry point | |
movw 6(%ebp), %bx # bx = Number of sections | |
xorl %eax,%eax | |
movw 0x14(%ebp), %ax # ax = Optional Header Size | |
addl %eax,%ebp | |
addl $0x18,%ebp # ebp = Start of 1st Section | |
SectionLoop: | |
pushl %esi # Save Base of EFILDR.C | |
pushl %edi # Save ImageBase | |
addl 0x14(%ebp),%esi # esi = Base of EFILDR.C + PointerToRawData | |
addl 0x0c(%ebp),%edi # edi = ImageBase + VirtualAddress | |
movl 0x10(%ebp),%ecx # ecs = SizeOfRawData | |
cld | |
shrl $2,%ecx | |
rep | |
movsl | |
popl %edi # Restore ImageBase | |
popl %esi # Restore Base of EFILDR.C | |
addw $0x28,%bp # ebp = ebp + 028h = Pointer to next section record | |
.byte 0x66 | |
.byte 0xff | |
.byte 0xcb | |
# dec bx | |
cmpw $0,%bx | |
jne SectionLoop | |
movl $Idtr, %edx # get size of IDT | |
movzxw (%edx), %eax | |
.byte 0xff | |
.byte 0xc0 | |
# inc eax | |
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 | |
.byte 0x48 | |
.byte 0xc7 | |
.byte 0xc0 | |
EfiLdrOffset: | |
.long 0x00401000 # Offset of EFILDR | |
# mov rax, 401000h | |
.byte 0x50 | |
# push rax | |
# ret | |
.byte 0xc3 | |
# db "**** DEFAULT IDT ENTRY ***",0 | |
.p2align 1 | |
Halt: | |
INT0: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $0x0 | |
jmpCommonIdtEntry | |
# db 0e9h ; jmp 16 bit reletive | |
# dd commonIdtEntry - $ - 4 ; offset to jump to | |
INT1: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $0x1 | |
jmpCommonIdtEntry | |
INT2: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $0x2 | |
jmpCommonIdtEntry | |
INT3: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $0x3 | |
jmpCommonIdtEntry | |
INT4: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $0x4 | |
jmpCommonIdtEntry | |
INT5: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $0x5 | |
jmpCommonIdtEntry | |
INT6: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $0x6 | |
jmpCommonIdtEntry | |
INT7: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $0x7 | |
jmpCommonIdtEntry | |
INT8: | |
# Double fault causes an error code to be pushed so no phony push necessary | |
nop | |
nop | |
pushl $0x8 | |
jmpCommonIdtEntry | |
INT9: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $0x9 | |
jmpCommonIdtEntry | |
INT10: | |
# Invalid TSS causes an error code to be pushed so no phony push necessary | |
nop | |
nop | |
pushl $10 | |
jmpCommonIdtEntry | |
INT11: | |
# Segment Not Present causes an error code to be pushed so no phony push necessary | |
nop | |
nop | |
pushl $11 | |
jmpCommonIdtEntry | |
INT12: | |
# Stack fault causes an error code to be pushed so no phony push necessary | |
nop | |
nop | |
pushl $12 | |
jmpCommonIdtEntry | |
INT13: | |
# GP fault causes an error code to be pushed so no phony push necessary | |
nop | |
nop | |
pushl $13 | |
jmpCommonIdtEntry | |
INT14: | |
# Page fault causes an error code to be pushed so no phony push necessary | |
nop | |
nop | |
pushl $14 | |
jmpCommonIdtEntry | |
INT15: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $15 | |
jmpCommonIdtEntry | |
INT16: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $16 | |
jmpCommonIdtEntry | |
INT17: | |
# Alignment check causes an error code to be pushed so no phony push necessary | |
nop | |
nop | |
pushl $17 | |
jmpCommonIdtEntry | |
INT18: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $18 | |
jmpCommonIdtEntry | |
INT19: | |
pushl $0x0 # push error code place holder on the stack | |
pushl $19 | |
jmpCommonIdtEntry | |
INTUnknown: | |
# The following segment repeats (0x78 - 20) times: | |
# No. 1 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 2 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 3 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 4 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 5 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 6 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 7 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 8 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 9 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 10 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 11 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 12 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 13 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 14 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 15 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 16 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 17 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 18 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 19 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 20 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 21 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 22 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 23 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 24 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 25 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 26 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 27 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 28 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 29 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 30 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 31 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 32 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 33 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 34 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 35 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 36 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 37 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 38 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 39 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 40 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 41 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 42 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 43 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 44 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 45 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 46 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 47 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 48 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 49 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 50 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 51 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 52 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 53 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 54 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 55 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 56 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 57 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 58 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 59 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 60 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 61 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 62 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 63 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 64 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 65 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 66 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 67 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 68 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 69 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 70 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 71 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 72 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 73 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 74 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 75 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 76 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 77 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 78 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 79 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 80 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 81 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 82 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 83 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 84 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 85 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 86 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 87 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 88 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 89 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 90 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 91 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 92 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 93 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 94 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 95 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 96 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 97 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 98 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 99 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
# No. 100 | |
pushl $0x0 # push error code place holder on the stack | |
# push xxh ; push vector number | |
.byte 0x6a | |
.byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number | |
jmpCommonIdtEntry | |
commonIdtEntry: | |
pushl %eax | |
pushl %ecx | |
pushl %edx | |
pushl %ebx | |
pushl %esp | |
pushl %ebp | |
pushl %esi | |
pushl %edi | |
.byte 0x41 | |
.byte 0x50 | |
# push r8 | |
.byte 0x41 | |
.byte 0x51 | |
# push r9 | |
.byte 0x41 | |
.byte 0x52 | |
# push r10 | |
.byte 0x41 | |
.byte 0x53 | |
# push r11 | |
.byte 0x41 | |
.byte 0x54 | |
# push r12 | |
.byte 0x41 | |
.byte 0x55 | |
# push r13 | |
.byte 0x41 | |
.byte 0x56 | |
# push r14 | |
.byte 0x41 | |
.byte 0x57 | |
# push r15 | |
.byte 0x48 | |
movl %esp,%ebp | |
# mov rbp, rsp | |
## | |
## At this point the stack looks like this: | |
## | |
## Calling SS | |
## Calling RSP | |
## rflags | |
## Calling CS | |
## Calling RIP | |
## Error code or 0 | |
## Int num or 0ffh for unknown int num | |
## rax | |
## rcx | |
## rdx | |
## rbx | |
## rsp | |
## rbp | |
## rsi | |
## rdi | |
## r8 | |
## r9 | |
## r10 | |
## r11 | |
## r12 | |
## r13 | |
## r14 | |
## r15 <------- RSP, RBP | |
## | |
call ClearScreen | |
movl $String1, %esi | |
call PrintString | |
.byte 0x48 | |
movl 16*8(%ebp),%eax ## move Int number into RAX | |
.byte 0x48 | |
cmpl $18,%eax | |
ja PrintDefaultString | |
PrintExceptionString: | |
shll $3,%eax ## multiply by 8 to get offset from StringTable to actual string address | |
addl $StringTable, %eax | |
movl (%eax),%esi | |
jmp PrintTheString | |
PrintDefaultString: | |
movl $IntUnknownString, %esi | |
# patch Int number | |
movl %eax,%edx | |
call A2C | |
movb %al,1(%esi) | |
movl %edx,%eax | |
shrl $4,%eax | |
call A2C | |
movb %al,(%esi) | |
PrintTheString: | |
call PrintString | |
movl $String2, %esi | |
call PrintString | |
.byte 0x48 | |
movl 19*8(%ebp),%eax # CS | |
call PrintQword | |
movb $':', %al | |
movb %al, (%edi) | |
addl $2,%edi | |
.byte 0x48 | |
movl 18*8(%ebp),%eax # RIP | |
call PrintQword | |
movl $String3, %esi | |
call PrintString | |
movl $0xb8140,%edi | |
movl $StringRax, %esi | |
call PrintString | |
.byte 0x48 | |
movl 15*8(%ebp),%eax | |
call PrintQword | |
movl $StringRcx, %esi | |
call PrintString | |
.byte 0x48 | |
movl 14*8(%ebp),%eax | |
call PrintQword | |
movl $StringRdx, %esi | |
call PrintString | |
.byte 0x48 | |
movl 13*8(%ebp),%eax | |
call PrintQword | |
movl $0xb81e0,%edi | |
movl $StringRbx, %esi | |
call PrintString | |
.byte 0x48 | |
movl 12*8(%ebp),%eax | |
call PrintQword | |
movl $StringRsp, %esi | |
call PrintString | |
.byte 0x48 | |
movl 21*8(%ebp),%eax | |
call PrintQword | |
movl $StringRbp, %esi | |
call PrintString | |
.byte 0x48 | |
movl 10*8(%ebp),%eax | |
call PrintQword | |
movl $0xb8280,%edi | |
movl $StringRsi, %esi | |
call PrintString | |
.byte 0x48 | |
movl 9*8(%ebp),%eax | |
call PrintQword | |
movl $StringRdi, %esi | |
call PrintString | |
.byte 0x48 | |
movl 8*8(%ebp),%eax | |
call PrintQword | |
movl $StringEcode, %esi | |
call PrintString | |
.byte 0x48 | |
movl 17*8(%ebp),%eax | |
call PrintQword | |
movl $0xb8320,%edi | |
movl $StringR8, %esi | |
call PrintString | |
.byte 0x48 | |
movl 7*8(%ebp),%eax | |
call PrintQword | |
movl $StringR9, %esi | |
call PrintString | |
.byte 0x48 | |
movl 6*8(%ebp),%eax | |
call PrintQword | |
movl $StringR10, %esi | |
call PrintString | |
.byte 0x48 | |
movl 5*8(%ebp),%eax | |
call PrintQword | |
movl $0xb83c0,%edi | |
movl $StringR11, %esi | |
call PrintString | |
.byte 0x48 | |
movl 4*8(%ebp),%eax | |
call PrintQword | |
movl $StringR12, %esi | |
call PrintString | |
.byte 0x48 | |
movl 3*8(%ebp),%eax | |
call PrintQword | |
movl $StringR13, %esi | |
call PrintString | |
.byte 0x48 | |
movl 2*8(%ebp),%eax | |
call PrintQword | |
movl $0xb8460,%edi | |
movl $StringR14, %esi | |
call PrintString | |
.byte 0x48 | |
movl 1*8(%ebp),%eax | |
call PrintQword | |
movl $StringR15, %esi | |
call PrintString | |
.byte 0x48 | |
movl 0*8(%ebp),%eax | |
call PrintQword | |
movl $StringSs, %esi | |
call PrintString | |
.byte 0x48 | |
movl 22*8(%ebp),%eax | |
call PrintQword | |
movl $0xb8500,%edi | |
movl $StringRflags, %esi | |
call PrintString | |
.byte 0x48 | |
movl 20*8(%ebp),%eax | |
call PrintQword | |
movl $0xb8640,%edi | |
movl %ebp,%esi | |
addl $23*8,%esi | |
movl $4,%ecx | |
OuterLoop: | |
pushl %ecx | |
movl $4,%ecx | |
.byte 0x48 | |
movl %edi,%edx | |
InnerLoop: | |
.byte 0x48 | |
movl (%esi),%eax | |
call PrintQword | |
addl $8,%esi | |
movb $0x20, %al # blank character | |
movb %al,(%edi) | |
addl $2,%edi | |
loop InnerLoop | |
popl %ecx | |
addl $0xa0,%edx | |
movl %edx,%edi | |
loop OuterLoop | |
movl $0xb8960,%edi | |
.byte 0x48 | |
movl 18*8(%ebp),%eax # RIP | |
subl $8*8,%eax | |
.byte 0x48 | |
movl %eax,%esi # esi = rip - 8 QWORD linear (total 16 QWORD) | |
movl $4,%ecx | |
OuterLoop1: | |
pushl %ecx | |
movl $4,%ecx | |
movl %edi,%edx | |
InnerLoop1: | |
.byte 0x48 | |
movl (%esi),%eax | |
call PrintQword | |
addl $8,%esi | |
movb $0x20, %al # blank character | |
movb %al,(%edi) | |
addl $2,%edi | |
loop InnerLoop1 | |
popl %ecx | |
addl $0xa0,%edx | |
movl %edx,%edi | |
loop OuterLoop1 | |
#wbinvd | |
LN_C1: | |
jmp LN_C1 | |
# | |
# return | |
# | |
movl %ebp,%esp | |
# mov rsp, rbp | |
.byte 0x41 | |
.byte 0x5f | |
# pop r15 | |
.byte 0x41 | |
.byte 0x5e | |
# pop r14 | |
.byte 0x41 | |
.byte 0x5d | |
# pop r13 | |
.byte 0x41 | |
.byte 0x5c | |
# pop r12 | |
.byte 0x41 | |
.byte 0x5b | |
# pop r11 | |
.byte 0x41 | |
.byte 0x5a | |
# pop r10 | |
.byte 0x41 | |
.byte 0x59 | |
# pop r9 | |
.byte 0x41 | |
.byte 0x58 | |
# pop r8 | |
popl %edi | |
popl %esi | |
popl %ebp | |
popl %eax # esp | |
popl %ebx | |
popl %edx | |
popl %ecx | |
popl %eax | |
.byte 0x48 | |
.byte 0x83 | |
.byte 0xc4 | |
.byte 0x10 | |
# add esp, 16 ; error code and INT number | |
.byte 0x48 | |
.byte 0xcf | |
# iretq | |
PrintString: | |
pushl %eax | |
LN_C2: | |
movb (%esi), %al | |
cmpb $0,%al | |
je LN_C3 | |
movb %al, (%edi) | |
.byte 0xff | |
.byte 0xc6 | |
# inc esi | |
addl $2,%edi | |
jmp LN_C2 | |
LN_C3: | |
popl %eax | |
ret | |
## RAX contains qword to print | |
## RDI contains memory location (screen location) to print it to | |
PrintQword: | |
pushl %ecx | |
pushl %ebx | |
pushl %eax | |
.byte 0x48 | |
.byte 0xc7 | |
.byte 0xc1 | |
.long 16 | |
# mov rcx, 16 | |
looptop: | |
.byte 0x48 | |
roll $4,%eax | |
movb %al,%bl | |
andb $0xf,%bl | |
addb $'0', %bl | |
cmpb $'9', %bl | |
jle LN_C4 | |
addb $7,%bl | |
LN_C4: | |
movb %bl, (%edi) | |
addl $2,%edi | |
loop looptop | |
#wbinvd | |
popl %eax | |
popl %ebx | |
popl %ecx | |
ret | |
ClearScreen: | |
pushl %eax | |
pushl %ecx | |
movb $0x20, %al # blank character | |
movb $0xc,%ah | |
movl $0xb8000,%edi | |
movl $80*24,%ecx | |
LN_C5: | |
movw %ax, (%edi) | |
addl $2,%edi | |
loop LN_C5 | |
movl $0xb8000,%edi | |
popl %ecx | |
popl %eax | |
ret | |
A2C: | |
andb $0xf,%al | |
addb $'0', %al | |
cmpb $'9', %al | |
jle LN_C6 | |
addb $7,%al | |
LN_C6: | |
ret | |
String1: .asciz "*** INT " | |
Int0String: .asciz "00h Divide by 0 -" | |
Int1String: .asciz "01h Debug exception -" | |
Int2String: .asciz "02h NMI -" | |
Int3String: .asciz "03h Breakpoint -" | |
Int4String: .asciz "04h Overflow -" | |
Int5String: .asciz "05h Bound -" | |
Int6String: .asciz "06h Invalid opcode -" | |
Int7String: .asciz "07h Device not available -" | |
Int8String: .asciz "08h Double fault -" | |
Int9String: .asciz "09h Coprocessor seg overrun (reserved) -" | |
Int10String: .asciz "0Ah Invalid TSS -" | |
Int11String: .asciz "0Bh Segment not present -" | |
Int12String: .asciz "0Ch Stack fault -" | |
Int13String: .asciz "0Dh General protection fault -" | |
Int14String: .asciz "0Eh Page fault -" | |
Int15String: .asciz "0Fh (Intel reserved) -" | |
Int16String: .asciz "10h Floating point error -" | |
Int17String: .asciz "11h Alignment check -" | |
Int18String: .asciz "12h Machine check -" | |
Int19String: .asciz "13h SIMD Floating-Point Exception -" | |
IntUnknownString: .asciz "??h Unknown interrupt -" | |
StringTable: .long Int0String, 0, Int1String, 0, Int2String, 0, Int3String, 0, \ | |
Int4String, 0, Int5String, 0, Int6String, 0, Int7String, 0, \ | |
Int8String, 0, Int9String, 0, Int10String, 0, Int11String, 0, \ | |
Int12String, 0, Int13String, 0, Int14String, 0, Int15String, 0, \ | |
Int16String, 0, Int17String, 0, Int18String, 0, Int19String, 0 | |
String2: .asciz " HALT!! *** (" | |
String3: .asciz ")" | |
StringRax: .asciz "RAX=" | |
StringRcx: .asciz " RCX=" | |
StringRdx: .asciz " RDX=" | |
StringRbx: .asciz "RBX=" | |
StringRsp: .asciz " RSP=" | |
StringRbp: .asciz " RBP=" | |
StringRsi: .asciz "RSI=" | |
StringRdi: .asciz " RDI=" | |
StringEcode: .asciz " ECODE=" | |
StringR8: .asciz "R8 =" | |
StringR9: .asciz " R9 =" | |
StringR10: .asciz " R10=" | |
StringR11: .asciz "R11=" | |
StringR12: .asciz " R12=" | |
StringR13: .asciz " R13=" | |
StringR14: .asciz "R14=" | |
StringR15: .asciz " R15=" | |
StringSs: .asciz " SS =" | |
StringRflags: .asciz "RFLAGS=" | |
Idtr: .float 0 | |
.float 0 | |
.org 0x21ffe | |
BlockSignature: | |
.word 0xaa55 | |