How do I determine the start and end of instructions in an object file?

Question

So, I\'ve been trying to write an emulator, or at least understand how stuff works. I have a decent grasp of assembly, particularly z80 and x86, but I\'ve never really under

Answer 1

For most CPUs - and I believe Z80 falls in this category - the length of an instruction is implicit.

That is, you must decode the instruction in order to figure out how long it is.