Prefix in function indicated "NP"
In the function "NOP EAX" (16 bit mode), opcode is NP... which may mean no prefix. In nasm, it turns out that the instruction opcode is 66 f 1f c0. What is 66 if it is not a prefix?
In the function "NOP EAX" (16 bit mode), opcode is NP... which may mean no prefix. In nasm, it turns out that the instruction opcode is 66 f 1f c0. What is 66 if it is not a prefix?