intel x64 assembly instructions - EAS

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    • Create a new empty C++ console project. ...
    • To change the default 32-bit build, select Build/Configuration Manager.
    • Under Active Platform, select New ...
    • Under Platform, select x64. ...
    • Compile and step into the code. ...
    • Create an assembly file, and add it to the project. ...
    • Open the assembly file properties, select all configurations, and edit the custom build step.

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    software.intel.com/content/www/cn/zh/develop/articles/introduction-to-x64-assembly.html
    software.intel.com/content/www/cn/zh/develop/articles/introduction-to-x64-ass…
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    What is x64 Assembly?
    This Gem is an introduction to x64 assembly. No prior knowledge of x86 code is needed, although it makes the transition easier. x64 is a generic name for the 64-bit extensions to Intel‟s and AMD‟s 32-bit x86 instruction set architecture (ISA). AMD introduced the first version of x64, initially called x86-64 and later renamed AMD64.
    www.intel.com/content/dam/develop/external/us/en/docu…
    How do I enter assembly code using Intel syntax?
    Enter your assembly code using Intel syntax below. Paste any hex string that encodes x86 instructions (e.g. a shellcode) below. Non-hex characters are skipped over, so you don't have to remove the double quotes or "\x" if you're disassembling a C-style string literal!
    defuse.ca/online-x86-assembler.htm
    What is the difference between x86 and x64?
    No prior knowledge of x86 code is needed, although it makes the transition easier. x64 is a generic name for the 64-bit extensions to Intel‟s and AMD‟s 32-bit x86 instruction set architecture (ISA). AMD introduced the first version of x64, initially called x86-64 and later renamed AMD64. Intel named their implementation IA-32e and then EMT64.
    www.intel.com/content/dam/develop/external/us/en/docu…
    How to exit 64 bit mode in assembler?
    Your assembler handles that automatically if it supports a "code64" segment. In addition, a 64-bit interrupt table must now be set with a new LIDT instruction, this time taking a 10-byte operator (2 for the length and 8 for the location). To exit 64-bit mode, it is first necessary to return to compatibility mode.
    www.codeproject.com/Articles/1273844/The-Intel-Assem…
  2. https://www.intel.com/content/dam/develop/external/...

    x64 is a generic name for the 64-bit extensions to Intel‟s and AMD‟s 32-bit x86 instruction set architecture (ISA). AMD introduced the first version of x64, initially called x86-64 and later renamed AMD64. Intel named their implementation IA-32e and then EMT64. There are some

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  3. https://www.intel.com/content/www/us/en/developer/...

    Jun 30, 2022 · This is the specification of a new feature for the Intel® 64 instruction set called flexible return and event delivery (FRED). Intel Key Locker Specification: This document describes the software programming interface for the Intel® Architecture instruction set extensions pertaining to the Key Locker feature.

  4. https://www.codeproject.com/Articles/1273844/The-Intel-Assembly-Manual
    • Architecture and CPU
      Assembly is a language that everything must be done manually. A single printf() call will perhaps take thousands of assembly instructions to execute. While this article does not attempt to teach you assembly, it would be necessary to bear in mind that really lots of things are needed even to …
    • Memory
      Physically, the memory is one big array. If you have 4GB, you could describe it as unsigned char mem[4294967295]. However, the way it is used greatly differs depending on the processor mode and the configuration of the operating system. Therefore, you do not access it as a big array.
    See more on codeproject.com
    Published: Jan 10, 2019
    Estimated Reading Time: 7 mins
    • 5/5
    • https://stackoverflow.com/questions/15297842

      May 07, 2015 · I recommend Introduction to 64 Bit Intel Assembly Language Programming for Linux by Ray Seyfarth. The book uses YASM instead of NASM, but YASM accepts AFAIK almost all NASM code and supports also DWARF2 debugging data format etc. The book has some SSE and AVX code too, and it assumes only some programming background and explains even …

      • Reviews: 3

        Code sample

        extern int funcA(int arg);
        extern int funcB(int arg1, int arg2);
        extern int funcC(int arg1, int arg2, int arg3);
        extern int funcD(int arg1, int arg2, int arg3, int arg4);
        extern int funcE(int arg1, int arg2, int arg3, int arg4);...
      • https://www.systutorials.com/beginners-guide-x86-64-instruction-encoding

        Sep 09, 2017 · add.o: file format elf64-x86-64 Disassembly of section .text: 0000000000000000 <.text>: 0: 4c 03 47 0a add 0xa(%rdi),%r8. Here 4c 03 47 0a is the 4-byte encoding of the addq instruction. If you want to check the instructions in Intel syntax, you may do. Last, deassemble the object file by objdump -d by.



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