I had a tech interview for an IBM mainframe Assembler position at a Canadian bank. The interviewer asked me to explain certain machine instructions. For each on

I had a tech interview for an IBM mainframe Assembler position at a Canadian bank. The interviewer asked me to explain certain machine instructions. For each one he mentioned, I immediately told him the hexadecimal opcode and he went to the next instruction. Unfortunately I was not a cultural fit as I was an order of magnitude more knowledgeable than my managers. They were not pleased that the exercise sample code I produced was a quarter the size of what they expected. I worked for a number of Canadian banks and some half took great pride in their mediocrity.