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...

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 would do it …

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).

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-language macros …

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, without writing a

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 opcode table in …

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 real server …

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, etc.? My theory is …

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

Aug 22, 2013 · I am interested in developing a PowerPC emulator for my own learning purposes. I've found a fair amount of resources about programming in PowerPC assembly, but after quite some …