- It was in 1590—winter. Austria was far away from the world, and asleep; it was still the Middle Ages in Austria, and promised to remain so forever. Some even set it away back centuries upon centuries and said that by the mental and spiritual clock it was still the Age of Belief in Austria. But they meant it as a compliment, not a slur, and it was so taken, and we were all proud of it. I remember it well, although I was only a boy; and I remember, too, the pleasure it gave me.
- Undocumented 8086 instructions, explained by the microcode (righto.com)
What happens if you give the Intel 8086 processor an instruction that doesn’t exist? A modern microprocessor (80186 and later) will generate an exception, indicating that an illegal instruction was executed. However, early microprocessors didn’t include the circuitry to detect illegal instructions, since the chips didn’t have transistors to spare. Instead these processors would do something, but the results weren’t specified.