PDP-10 RC-10 Disk Interrupt Service

This document outlines the interrupt service routines for the PDP-10 RC-10 disk synchronizer. It includes details on the CONI (Condition In) and DATAO (Data Out) formats used to manage disk operations, including maintenance segment selection, error handling (such as parity errors, track select errors, and software-preventable errors), and status checking. The document also provides specifications for subroutines used to initiate disk writes (DFWRT) and disk reads (DFRED), as well as utility subroutines for converting logical block numbers to physical disk addresses. It includes a complete symbol table for the assembly code and details the calling sequences and entry/exit conditions for these subroutines.