Difference between: Opcode, byte code, mnemonics, machine code …
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 used by a software …
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 form of the …
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 instruction (possibly …
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 through...
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 output format gives you …
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 "opcode" to refer to the …
What is the difference between machine code and opcode?
The question is mostly related to PHP because IMHO opcode is mostly mentioned in PHP context. In fact Java is more popular for its byte-/opcode 1) Is opcode just a portion of machine code, does …
windows - VcXsrv/XLaunch does not display correctly after fresh install ...
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 (showing …
assembly - 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 wich contains the …
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 in the …