To do anything useful in such small memory space, the compiler relies on an SDS architectural feature known as Programmed OPeratorS, or POPS. This feature consists of a single bit in the instruction word that causes the machine to "mark place and branch" to the memory address of the instruction code value plus 100 (octal).
To execute effectively within limited memory space, the compiler employs a SDS architectural feature called Programmed Operators, or POPS. This feature involves a single bit in the instruction word that directs the machine to "mark location and branch" to the memory address of the instruction code value plus 100 (octal).