[HECnet] Ersatz-11 V7.1

V7.1 of Ersatz-11 is done. New features include: - DMP11/DMV11 network ports. - DDCMP over TCP and UDP (as well as serial lines). - Kermit client for transferring files in and out of the PDP-11 over any emulated serial line (KERMIT command and KERMIT: pseudo-driver). - "MOUNT ddcu: BAD: /LIST:badblks.txt ..." adds fake bad blocks (from a list in a file) to any disk (for testing PDP-11 utilities). - "MOUNT ddcu: ... {/NOPAD | /PAD:NULL | /PAD:RAM}" selects how to handle emulating disks with an image file (or physical drive) that's smaller than the drive being emulated. (/PAD:RAM is currently an experimental feature and may have bugs -- it's intended for systems that use the tail end of the drive as swap space.) - DPDISK: and DPTAPE: (BOTH UNSUPPORTED) set up dual-ported disks and tapes. Any disk or tape type can be mounted on one of these pseudo-devices, after which units 0 and 1 of the pseudo-device represent the two ports which may in turn each be mounted on different PDP-11 controllers, presumably on different processors of a multi-processor system. - "SET TTu: DL11A" (needed by DOS/BATCH for TT0:). - "SET PCLOG n" enlarges the number of logged PC values that can be shown with SHOW PCLOG. - New native "SYS" utilities for Linux, OS/2, and Windows, for making disks (or flash drives) boot the stand-alone version of E11. The Linux and Windows versions try to notice if a drive (e.g. USB flash card that came pre-partitioned) hasn't been made "active" and/or is missing the MBR bootstrap, and fixes it (may require privs). If anyone can please tell me what sys calls in OS/2 will find out which physical drive owns a FAT volume given the drive letter, I'd appreciate it! - The stand-alone version's bootstrap supports USB drives (including flash). Also there's a bootable CD, but since there's currently no ATAPI dev driver or ISO9660 FS driver, it can't install E11 onto a hard drive, and it requires a FAT volume to hold .DSK files etc. So it's more of a proof of concept than something useful (but it's an easy way to try out the stand-alone version of E11). Bug fixes and tweaks as usual (sorry about that .TAP seeking thing in V7.0!). As usual, the Demo version can be downloaded from: http://www.dbit.com/demo.html John Wilson D Bit