Stage0/Linux Bootstrap/xeh.hex0

## Copyright (C) 2016 Jeremiah Orians
## This file is part of stage0.
##
## stage0 is free software: you an redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## stage0 is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with stage0.  If not, see <http://www.gnu.org/licenses/>.

## ELF Header
7F 45 4C 46        ## e_ident[EI_MAG0-3] ELF's magic number
02                 ## e_ident[EI_CLASS] Indicating 64 bit
01                 ## e_ident[EI_DATA] Indicating little endianness
01                 ## e_ident[EI_VERSION] Indicating original elf
00                 ## e_ident[EI_OSABI] Set at 0 because none cares
00                 ## e_ident[EI_ABIVERSION] See above
00 00 00 00 00 00 00 ## e_ident[EI_PAD]
02 00              ## e_type Indicating Executable
3E 00              ## e_machine Indicating AMD64
01 00 00 00        ## e_version Indicating original elf
78 00 60 00 00 00 00 00
40 00 00 00 00 00 00 00 ## e_phoff Address of program header table
30 01 00 00 00 00 00 00
00 00 00 00        ## e_flags
40 00              ## e_ehsize Indicating our 64 Byte header
38 00              ## e_phentsize size of a program header table
01 00              ## e_phnum number of entries in program table
00 00              ## e_shentsize size of a section header table
00 00              ## e_shnum number of entries in section table
00 00              ## e_shstrndx index of the section names

## Program Header table
01 00 00 00             ## p_type
06 00 00 00             ## Flags
00 00 00 00 00 00 00 00 ## p_offset
00 00 60 00 00 00 00 00 ## p_vaddr
00 00 00 00 00 00 00 00 ## Undefined
18 01 00 00 00 00 00 00 ## p_filesz
18 01 00 00 00 00 00 00 ## p_memsz
00 00 20 00 00 00 00 00 ## Required alignment


## Start
48 c7 c2 01 00 00 00 #	mov    $0x1,%rdx
48 c7 c6 17 01 60 00 #	mov    $0x600117,%rsi
48 c7 c7 00 00 00 00 #	mov    $0x0,%rdi
48 c7 c0 00 00 00 00 #	mov    $0x0,%rax
0f 05                #	syscall
48 85 c0             #	test   %rax,%rax
74 5b                #	je     6000f6 <Done>
8a 04 25 17 01 60 00 #	mov    0x600117,%al
4c 0f b6 e0          #	movzbq %al,%r12
4c 0f b6 e8          #	movzbq %al,%r13
49 c1 ec 04          #	shr    $0x4,%r12
49 83 e5 0f          #	and    $0xf,%r13
49 81 c4 06 01 60 00 #	add    $0x600106,%r12
49 81 c5 06 01 60 00 #	add    $0x600106,%r13
48 c7 c2 01 00 00 00 #	mov    $0x1,%rdx
4c 89 e6             #	mov    %r12,%rsi
48 c7 c7 01 00 00 00 #	mov    $0x1,%rdi
48 c7 c0 01 00 00 00 #	mov    $0x1,%rax
0f 05                #	syscall
48 c7 c2 01 00 00 00 #	mov    $0x1,%rdx
4c 89 ee             #	mov    %r13,%rsi
48 c7 c7 01 00 00 00 #	mov    $0x1,%rdi
48 c7 c0 01 00 00 00 #	mov    $0x1,%rax
0f 05                #	syscall
eb 82                #	jmp    600078 <_start>


## Done
48 c7 c7 00 00 00 00 #	mov    $0x0,%rdi
48 c7 c0 3c 00 00 00 #	mov    $0x3c,%rax
0f 05                #	syscall

## Hex output chars
30 31 32 33 34 35 36 37 38 39 41 42 43 44 45 46 0A

## Where the byte we are reading is shoved
00