Thread: Assembly equivalent

  1. #1
    Registered User
    Join Date
    Apr 2004

    Assembly equivalent

    What is following code in assembly is equivalent of higher language like C?

    xor ax,dx
    sub ax,dx
    If you have anything similar assembly snapshot equvalent to C, let me know...

  2. #2
    Registered User
    Join Date
    Aug 2003
    My reference for cwd says that the CWD converts a word to a double word.

    I think something similar to this code would be

    typedef unsigned short uint16;
    typedef unsigned int uint32;

    xor ax,dx
    sub ax,dx

    uint16 a = 5;
    uint32 b;
    uint32 c = 6;

    b = (uint32)a; // cwd
    b ^= c; // xor
    b -= c; // sub

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