- The ARM1 processor’s flags, reverse engineered (righto.com)
This article reverse-engineers the flag circuits in the ARM1 processor, explaining in detail how the flags are generate, controlled, and used. Condition flags are a key part of most computers, since they allow the computer to change what it does based on various conditions. The flags keep track of conditions such as a value being negative or zero or an overflow happening. Processors may also have status flags to control modes such as running in user mode versus protected (kernel) execution. The ARM1 processor stores these flags in a special register called the Processor Status Register (PSR).
- David Packard (Wikipedia)
David Packard (/ˈpækərd/ PAK-ərd; September 7, 1912 – March 26, 1996) was an American electrical engineer and co-founder, with Bill Hewlett, of Hewlett-Packard (1939), serving as president (1947–64), CEO (1964–68), and chairman of the board (1964–68, 1972–93) of HP. He served as U.S. Deputy Secretary of Defense from 1969 to 1971 during the Nixon administration. Packard served as president of the Uniformed Services University of the Health Sciences (USU) from 1976 to 1981 and chairman of its board of regents from 1973 to 1982. He was a member of the Trilateral Commission. Packard was the recipient of the Presidential Medal of Freedom in 1988 and is noted for many technological innovations and philanthropic endeavors.