KE11-E and KE11-F Instruction Set Options

This manual provides comprehensive documentation for the KE11-E Extended Instruction Set (EIS) and KE11-F Floating Instruction Set (FIS) hardware options for the PDP-11/40. It covers:

• General Description: Specifications and configuration for both options, noting that the KE11-F requires the KE11-E as a prerequisite.
• Programming: Detailed instructions, formats, and examples for arithmetic shift (ASH, ASHC), multiply (MUL), divide (DIV), and floating-point operations (FADD, FSUB, FMUL, FDIV).
• Theory of Operation: Explanations of 2's complement arithmetic, multiplication/division algorithms, and the Polish Accumulator technique used for floating-point operations.
• Logic Description: Detailed block diagrams, flow diagrams, and logic definitions for maintaining the EIS and FIS hardware.
• Installation and Maintenance: Procedures for installing the M7238 and M7239 modules and guidance on using diagnostic programs and the maintenance console overlay.