It is the same as number 248 in decimal system. If we talking about CPU's opcodes then something like IDA Pro free or OllyDbg would be useful for analyzing internals of executable files.ĭoes that mean the opcode f8 is converted into binary dataĪs was correctly pointed by - 0xF8 is same number as 1111 1000, one represented in HEX notation and the last one as binary representation. Use any HEX viewer/editor for such tasks or better use the tool that knows internals of the binary file in question. Text editor for viewing binary files is the same as to use a knife for nailing. First, always use the right tool for the job.