From: utzoo!decvax!cca!Douglas@sri-unix Newsgroups: net.unix-wizards Title: MTPR, VAX, and System III inquiry Article-I.D.: sri-unix.1912 Posted: Sat Jun 26 20:08:51 1982 Received: Tue Jun 29 01:42:37 1982 Date: 11 Jun 1982 at 1313-CDT Does anyone know why a VAX-11/780 booting UNIX System III would have the following strange behavior? $$ unix ! boot using standalone shell HALTED AT 1 The in-core image of UNIX looks fine, and debugging shows that one of the first few instructions executed, MTPR address,SBB fails to load SBB with the address (0x200)! Patching in a halt here and manually entering the desired value into SBB lets UNIX continue to boot successfully. Have we uncovered a microcode bug? I believe we are using VMS 3.0 console floppies (god knows why). P.S. VMS runs fine, and $$ lets us run all the standalone utilities with no problem. -------