Instruction set architecture From the first PDP-6s to the KL-10 and KS-10, the user-mode instruction set architecture is largely the same. This section covers that architecture. The only major change to the architecture is the addition of multi-section extended addressing in the KL-10; extended addressing, which changes the process of generating the effective address of an instruction, is briefly discussed at the end. Generally, the system has 36-bit words and instructions, and 18-bit addresses.
Instruction set architecture From the first PDP-6s to the KL-10 and KS-10, the user-mode instruction set architecture is largely the? same. This section covers that architecture. The only major change to the architecture is the addition of multi-section extended addressing in the KL-10; extended addressing, which changes the process of generating t!he effective address of an instruction, is briefly discussed at the end. Generally, the system has 36-bit wo,rds and instructions, a.nd 18-bit addresses.