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).
The compiler utilizes a SDS architectural feature called Programmed Operators, or POPS, to execute effectively within limited memory space. 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).