Dial-Ms for 1600 Blocks

This document serves as a library write-up for a software update designed to allow DIAL-MS and PIP to access all 1600 (octal) blocks of a LINCtape marked with the "B" option of MARK12.

Key details include:

• Functionality: Patches were applied to the DIAL-MS function routines, editor, assembler, and PIP to remove the previous 777-block upper limit.
• Compatibility Warnings: Because the patches were not applied to I/O routines, behavior on disk systems is unverified (though likely functional).
• Usage Note: When copying a 1000-block tape to a 1600-block tape, the system will trigger an error message when reaching the end of the smaller tape; this message serves as an indicator that the copy process is complete.
• Author: David Goodman, Psychophysiology Laboratory, V.A. Hospital, Bedford, Massachusetts (dated October 8, 1972).