On 24/07/2011 05:25, Dan Gahlinger wrote: > I got a DSK file from other user which works fine on their system, > but when I try it on my linux system I just get errors, no matter how > I try to boot it. > ... > sim> boot rq0 > Loading boot code from vmb.exe > > > VAX/VMS Version V4.2 24-JUN-1985 08:00 > > > > **** FATAL BUG CHECK, VERSION = BJT INVEXCEPTN, Exception while above > ASTDEL or on interrupt stack >
This looks a lot like the O2 optimization bug that was discussed back in December/January. Did you build simh from source? If you are building with GCC 4.x there are some changes that need to be made to the macros in vax780_defs.h or the makefile needs to be modified in order to reduce the optimization level (-O1 rather than -O2). Matt
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