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 …

Jul 14, 2013 · There are other opcodes for push register (with the register number as part of the opcode byte), and for push imm8, and push r/m (addressing via a modr/m byte).

Feb 22, 2013 · Many opcodes for immediate versions of instructions, including 83, use the 3-bit /r field in the ModR/M byte as 3 extra opcode bits. Intel's vol.2 manual documents this, and the …

15 Does anyone know of a web site where I can find a list of 32-bit MIPS instructions/opcodes, with the following features: Clearly distinguishes between real opcodes and assembly …

I know how to get the opcodes and the corresponding assembly syntax from an executable; however is there an easy way to get the opcodes of a particular assembly instruction alone, …

Oct 4, 2022 · My question is that, considering the fact that the operation type is pretty much determined by the opcode, what exactly are the usage of additional opcodes in funct3, funct7, …

Mar 24, 2012 · I know how to get the assembly code of my program using gdb but how do I get the opcode? I need it to hack a linux server (don't worry it's part of a class I'm having so no …

Jul 29, 2017 · Opcodes are not always 8 bits but yes, it is hardcoded/wired in the logic to isolate the opcode and then send you down a course of action based on that. Think about how you …

May 3, 2024 · Extracting opcodes from arm64 (ARMv8.5-A) instructions Asked 1 year, 7 months ago Modified 1 year, 7 months ago Viewed 1k times

Apr 1, 2017 · To do that, I should make research about Assembly opcodes, so I found this on the Web. When I test to compile some codes with NASM, like this: add eax, eax It outputs this on …