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  1. Difference between: Opcode, byte code, mnemonics, machine …

    Jul 14, 2013 · OPCODE: It is a number interpreted by your machine (virtual or silicon) that represents the operation to perform BYTECODE: Same as machine code, except, its mostly …

  2. assembly - Intel x86 Opcode Reference? - Stack Overflow

    Jun 19, 2011 · What is a relatively quick and easy method of looking up what an arbitrary opcode means (say, 0xC8) in x86? The Intel Software Developer's manual isn't very fun to search …

  3. How to read the Intel Opcode notation - Stack Overflow

    Feb 22, 2013 · 3.1.1.1 Opcode Column in the Instruction Summary Table (Instructions without VEX Prefix) The “Opcode” column in the table above shows the object code produced for each …

  4. Opcode vs Operand in x86 assembly source code - Stack Overflow

    Nov 24, 2022 · The opcode is the machine code representation of the instruction. Opcode can include the entire instruction's machine code or only the byte or bytes that select the …

  5. Windows 7 task scheduler keeps returning operational code 2

    The question and the top answer are confusing the notion of a "return code", which shows up in Task Scheduler as the "Last Run Result" with the "OpCode"/"Operational Code" that shows up …

  6. How to tell the length of an x86 instruction? - Stack Overflow

    Terminology: "opcode" is the part of the instruction that selects the operation, not including operands, or non-mandatory prefixes that modify the operation (e.g. operand-size). Using …

  7. JMP to absolute address (op codes) - Stack Overflow

    Jumps are usually relative. There's an opcode EA for a jump to an absolute far address, and opcodes for jumps to an indirect address (where the operand specifies the memory location …

  8. linux - How to get opcodes of a c program - Stack Overflow

    Mar 24, 2012 · That may be so, but the answer is the same. You can disassemble that shellcodeasm program using objdump instead of doing it inside gcc. As you can see, the …

  9. windows - VcXsrv/XLaunch does not display correctly after fresh …

    Feb 11, 2025 · I recently installed the latest version of VcXsrv and launched XLaunch. However, when running my X11 application (which runs via Wine), the window size is not as expected …

  10. Detecting and extracting opcode sequences - Stack Overflow

    Jun 8, 2020 · May I get an explanation about what opcode sequences are and how to find them in PE32 files? I am trying to extract them from PE32 files.