MOV X86 INSTRUCTION


MOV X86 INSTRUCTION

Analyzing Memory Accesses in Obfuscated x86 Executables
The evaluation function, ?, formally specifies how each x86 instruction is processed. It state = ? ? (inst(x), pop(state)), where x ? top(state) Handling a mov instruction is
http://www.cacs.louisiana.edu/~arun/papers/obfuscated-executables-dimva2005.pdf

University of Jordan Faculty of Engineering and Technology
Hardware Emulation Kit is available at the course Website. ? Intel® x86 Basic Instruction Memory Addresses. 3. Assembly Language Programming Concepts. 4. The MOV instruction and
http://fetweb.ju.edu.jo/staff/EE/mhawa/331/syllabus.pdf

Process Visibility Looking Under the Hood
objdump -h hello.o hello.o: file format elf64-x86-64 push %rbp 1:*48 89 e5 *mov %rsp,%rbp 4 0xfff?fc ? 000?05 ? callq is a PC-relative call instruction
http://www.cs.sunysb.edu/~ezk/cse376-s08/Process_Visibility.pdf

QEMU, a Fast and Portable Dynamic Translator
generator is run, the following host code is output: #movl_T0_r1 #ebx=env->regs[1] mov condition code evaluation: instead of computing the condition codes after each x86 instruction,
http://www.usenix.org/publications/library/proceedings/usenix05/tech/freenix/full_papers/bellard/bellard.pdf

architecture Outline
0x00000000 x86 Instruction Set ? Two-operand instruction set o Intel syntax: op movl 4(%ebx), %edx edx = *(int32_t*)(ebx+4); displaced ? Instruction classes o data movement: MOV, PUSH
http://ocw.mit.edu/

Microprocessor Evolution:
from x86 instructions to internal uops only happens on trace cache miss, one x86 instruction per in memory cmp br T1 * Code packed in trace cache T1: sub (6 uops/line) br T2 T2: mov
http://ocw.mit.edu/

AMD x86-64 Architecture Programmer?s Manual, Volume 4, 128-Bit Media ...
MOV UPS syntax, opcodes, functions, affected flags, and possible exceptions. The x86-64 instruction set is
http://tigger.smu.edu.sg/software/AMD_tech_docs/AMD%20x86-64%20Arch%20Vol%204%20--%20128-Bit%20Media%20Instr.pdf

Instruction Sets (Chapter 3)
Set Computers (RISC) ? But, Intel has done just that! CompOrg Fall 2002 Instruction Sets (Chap 3) 3 X86 00401040 : 0: 55 push %ebp 1: 89 e5 mov %esp
http://www.cs.rpi.edu/~hollingd/comporg.2002/notes/InstrSet/InstrSet.pdf

Porting QEMUto Plan 9: Strategy
Consider the X86 guest'smicro-op that is the core of the X86 ARPL instruction (from target-i386/op obviouslyserializable"control flow graph. 000000000049e943: 49e943: mov
http://gsoc.cat-v.org/people/nwf/paper-strategy.pdf

It's not just a bigger 386
are often to be avoided and memory-to-register MOV s are pretty much as they were on the 386, where every instruction 486 optimization differs from optimization for earlier x86
http://www.byte.com/abrash/chapters/gpbb12.pdf

pipelines and other hazards of the high end
effectively increasing the available register space. Unfortunately, the x86 instruction For example, MOV AL, [EBX] is a 2-byte instruction; MOV AL, [EBX+lOH] is a 3byte instruction
http://www.byte.com/abrash/chapters/gpbb13.pdf

IA32 Instruction Set
of some of the 32 bit registers.-this provides compatibility with x86 (16 bit) instruction set.- IA 32 25 Moving data: mov instruction mov src, dstreg ? moves data specified by src to the
http://cgi2.cs.rpi.edu/~hollingd/comporg/notes/IA32/IA32.pdf

Using Dynamic Binary Translation to Fuse Dependent Instructions
additional performance challenges. For example, splitting or "cracking" an x86 instruction into a 2 X86 instructions Fused ISA Execution Latency 1 mov ebx,ds:[esi + 1c] LD Rebx, [Resi + 1c
http://www.cgo.org/cgo2004/papers/17_61_HU_S.pdf

www.crhc.uiuc.edu
It is also the only three-operand instruction in the x86 instruction set and can sometimes be used as a three-operand add or shift to eliminate an otherwise necessary mov instruction
http://www.crhc.uiuc.edu/IMPACT/ftp/report/ms-thesis-ben-sander.pdf

Instruction latencies and throughput for AMD and Intel x86 processors
Instruction latencies and throughput for AMD and Intel x86 Family and model numbers are returned by thecpuid instruction. How 12.71312.7 testr,r 1 2 1 2 1 3 1 3 1 3 1 3 bt r,i 8 1/8 8 1/8 1 1 1 1 1 3 1 3 mov r,r 1
http://swox.com/doc/x86-timing.pdf

Windows Kernel Internals Object Manager
Windows Kernel Internals II x86 overview Traps Miscellaneous User Registers ?EIP / IP : "instruction pointer dereference ?Examples: add edx,ebx; add ebxto edx mov ecx
http://www.i.u-tokyo.ac.jp/edu/training/ss/msprojects/data/05-x86TrapsInterruptsExceptions.pdf

The 80x86 Instruction Set
detailed look at instruction encodings for various instructions (80x86 and x86); such pushad, pushf, pushfd, pop, popa, popad, popf, popfd, lahf, and sahf. 6.3.1 The MOV Instruction The mov
http://webster.cs.ucr.edu/AoA/DOS/pdf/ch06.pdf

x86 Disassembly
This Book About? This book is about the disassembly of x86 optimize beyond choosing the shortest form of an instruction or aspects of HLA. Here is an example of some HLA code: mov (
http://upload.wikimedia.org/wikibooks/en/5/53/X86_Disassembly.pdf

X86 Assembly/Print Version - Wikibooks, collection of open-content ...
mov ax, bx ;mov cx, ax Here, the assembler never sees the second instruction "mov cx x86 Assembly Wikipedia has related information at X86 instruction listings . These pages are
http://upload.wikimedia.org/wikibooks/en/1/11/X86_Assembly.pdf

Lecture 12 Reversing
Primer on x86 ?Instruction rules-Source operand can be memory, register or constant-Destination C7 45 FC 01 00 00 00 mov dword ptr[ebp-4],1; store a = 1 0000001F: C7 45 F8 03 00
http://thefengs.com/wuchang/work/courses/cs592_spring2007/Lecture12.pdf

VMware's Virtual Platform?
vmware.com VMware Inc. What's a virtual machine monitor x86 MOV AX,CS or LMSW AX ?Some MMU "features" problematic Most user-level code and V8086 mode code ?Only a few instruction
http://www.hotchips.org/archives/hc11/3_Tue/hc99.s6.1.Rosenblum.pdf

Wabi Cpu Emulation
containing 0xFFFF0000>, tmp and dst, , dst => mov src, dst or dst, tmp, dst - 10-20% performance boost in 16-bit x86 code ? x86 instruction peepholes
http://www.hotchips.org/archives/hc8/2_Mon/HC8.S2/HC8.2.1.pdf

x86 Programming CS 740 Sept. 12, 2007
confused with Intel's IA-64 in the Itanium machines) Constraints on the original x86 instruction 07-9-Disassembled 00401040 : 0: 55 push %ebp 1: 89 e5 mov
http://www.cs.cmu.edu/afs/cs.cmu.edu/academic/class/15740-f07/public/lectures/lect02.pdf

TeX output 2003.06.20:1638
The x86 uses the MOV instruction. In the case of the x86, the address calculated is in the DS segment, which is accessed via the DS register. That access is done through a 16-bit
http://highered.mcgraw-hill.com/sites/dl/free/0072467509/104652/pat67509_appb.pdf

3DNow!? Instruction Porting
This document assumes that the reader possesses in-depth knowledge of the x86 instruction set bit 21 of Eflags can be toggled) pushfd;save Eflags pop eax;transfer Eflags into EAX mov
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/22621.pdf

Porting Applications to Windows®for AMD64 Technology
AMD64 Technology AMD64 Instruction Set Architecture Support for all x86 instruction extensions MMX What to port, and how Using the 64-bit registers mov edx, 66 mov eax, [ecx + edx*4] mov
http://www.amd.com/us-en/assets/content_type/DownloadableAssets/AMD_TechEdEMEA2003_Final.pdf

MLX1 A Tiny Multithreaded 586 Core for Smart Mobile Devices
MPF 2002 6 MemoryLogix Typical x86 Instruction Set Usage ? On mostly integer applications - 92% are 35% of loads are relative to stack pointer ? Frequent register copy - MOV reg,reg 13%
http://www.cs.washington.edu/research/smt/memoryLogix.pdf

mov esi, [src] // source array
The simplest way to copy memory is to use the REP MOVSB instruction. This is the automatic instruction provided by X86 for memory copy. bandwidth: ~620 MB/sec (baseline) mov
http://cdrom.amd.com/devconn/events/AMD_block_prefetch_paper.pdf

Lecture 20: Hair-Dryer Attacks and Introducing x86
by VM-x86: registers and memory, managed (mostly) by programmer Why is x86 instruction set Introducing Asm Move Instruction mov[destination], [source] ?Copies the value in source
http://www.cs.virginia.edu/~evans/cs216/classes/lecture20.pdf