what are x86-64 instructions and abi? - EAS

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  1. Most x86 processors manufactured by Intel and AMD for the past five years support a 64-bit mode that changes theregister set and instruction set of the machine. When we choose to program using the “x86-64” model, it means bothusing this modeandadopting a particular Application Binary Interface (ABI) that dictates things like function callingconventions.
    web.cecs.pdx.edu/~apt/cs491/x86-64.pdf
    web.cecs.pdx.edu/~apt/cs491/x86-64.pdf
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    What is x86_64 Abi?
    x86_64 This ABI is for CPUs supporting the instruction set commonly referred to as "x86-64." It supports instructions that GCC typically generates with the following compiler flags: -march=x86-64 -msse4.2 -mpopcnt -m64 -mtune=intel
    developer.android.com/ndk/guides/abis
    What is x86 64 bit instruction set?
    x86-64 (also known as x64, x86_64, AMD64 and Intel 64) is the 64-bit instruction set in the x86, first released in 1999. It introduced two new modes of operation, 64-bit mode and compatibility mode, along with a new 4-level paging mode.
    en.wikipedia.org/wiki/X86-64
    What is the calling convention for AMD64 ABI?
    The calling convention of the System V AMD64 ABI is followed on Solaris, Linux, FreeBSD, macOS, and is the de facto standard among Unix and Unix-like operating systems. The OpenVMS Calling Standard on x86-64 is based on the System V ABI with some extensions needed for backwards compatibility.
    en.wikipedia.org/wiki/X86_calling_conventions
    What is x32 ABI in Linux?
    Fedora and Red Hat Enterprise Linux allow concurrent installation of all userland components in both 32 and 64-bit versions on a 64-bit system. x32 ABI (Application Binary Interface), introduced in Linux 3.4, allows programs compiled for the x32 ABI to run in the 64-bit mode of x86-64 while only using 32-bit pointers and data fields.
    en.wikipedia.org/wiki/X86-64
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    classes.cs.uchicago.edu
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    Apr 14, 2009
    https://www.classes.cs.uchicago.edu/archive/2009/...
    • File Size: 119KB
    • Page Count: 6
    x86-64 Instructions and ABI 1 Introduction You will be generating assembly code for the x86-64 architecture, which is the 64-bit extension to Intel’s venerable x86 architecture. Most instructions in this architecture have …
    x86-64 Instructions and ABI 1 Introduction You will be generating assembly code for the x86-64 architecture, which is the 64-bit extension to Intel’s venerable x86 architecture. Most instructions in this architecture have two operands: a source and a destination that specifies the second operand and the location of the result. Operands
  4. https://en.wikipedia.org/wiki/X86-64

    The following operating systems and releases support the x86-64 architecture in long mode.
    Preliminary infrastructure work was started in February 2004 for a x86-64 port. This development later stalled. Development started again during July 2007 and continued during Google Summer of Code 2008 and SoC 2009. The first official release to contain x86-64 support was version 2.4.
    FreeBSD first added x86-64 support under the name "amd64" as an experimental architecture i…

    • Estimated Reading Time: 8 mins
    • https://developer.android.com/ndk/guides/abis

      Aug 08, 2022 · This ABI is for CPUs supporting the instruction set commonly referred to as "x86-64." It supports instructions that GCC typically generates with the following compiler

    • https://stackoverflow.com/questions/18133812

      Aug 07, 2013 · The x32 ABI (32-bit pointers in long mode) is part of the x86-64 aka AMD64 ABI doc. See Chapter 10: ILP32 Programming Model. The GitLab repo auto-builds a PDF of the …

      • Reviews: 4

        Code sample

        sudo apt-get install texlive-full
        git clone https://gitlab.com/x86-psABIs/x86-64-ABI
        cd x86-64-ABI
        make pdf
      • https://wiki.osdev.org/X86-64
        • There are three 64 bit programming models you need to consider: LP64, ILP64, LLP64. Each model has its own pitfalls. The I/L/P stand for Int, Long, Pointer, respectively; the 64 is the number of bits in each. LP64 means Longs (and Long Longs) and Pointers are 64 bits wide, Ints are 32 bits wide.LLP64 means Long Longs and Pointers are 64 bits wide, ...
        See more on wiki.osdev.org
        • _int: 32
        • long: 64
        • int: 32
        • short: 16
      • https://en.wikipedia.org/wiki/X86_calling_conventions

        x86-64 calling conventions take advantage of the additional register space to pass more arguments in registers. Also, the number of incompatible calling conventions has been …

      • https://www.unomaha.edu/college-of-information...

        • The number of potential x86-64 instructions is huge, as the hardware limit is the number of bytes that the CPU is willing to fetch for one instruction. On x86-64 this is 15 bytes [3] (pp …

      • Where Is the X86-64 System V Abi Documented - ITCodar

        https://www.itcodar.com/linux/where-is-the-x86-64...

        Where is the x86-64 System V ABI documented? The System V AMD64 psABI document is maintained as LaTeX sources on GitLab. Similarly the i386 psABI is a separate GitLab repo. …

      • cons.mit.edu/sp17/x86-64-architecture-guide.html

        29 rows · This handout only mentions a small subset of the rich possibilities provided by the x86-64 instruction set and architecture. For a more complete (but still readable) introduction, …

      • https://www.cs.cmu.edu/~fp/courses/15213-s07/misc/asm64-handout.pdf

        microprocessor based on its “x86-64instruction set. As the name implies, x86-64 is an evolution of the Intel instruction set to 64 bits. It maintains full backward compatibility with …

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