dickj@tekgen.UUCP (11/22/86)
I have a team doing RT-11 development work under TSX on an 11/73 machine that I would like to move onto a MVAX II under Ultrix. Is anyone aware of any cross assemblers and C compilers that would run under Ultrix or BSD4.2,3 on a MVAX II that would produce modules that could be loaded into an 11/73 machine running Rt-11 for execution? The ability to write disks in RT-11 format would also be useful. Another possibility would be a RT-11 emulator that would run under Ultrix similiar to DEC's RTEM which runs under VMS. Any input would be greatly appreciated since I don't want to bring up a machine to run that "other" operating system supplied by DEC. Thanks in advance. David White UUCP: ...!tektronix!gvgpsa!davew Grass Valley Group ...!ucbvax!ucdavis!gvgpsa!davew P.O. Box 1114 Grass Valley, CA 95945 +1 916 478-3952
dan@rna.UUCP (11/23/86)
In article <567@tekgen.UUCP> dickj@tekgen.UUCP (David White) writes: >I have a team doing RT-11 development work under TSX on an 11/73 >machine that I would like to move onto a MVAX II under Ultrix. Is >anyone aware of any cross assemblers and C compilers that would run >under Ultrix or BSD4.2,3 on a MVAX II that would produce modules that >could be loaded into an 11/73 machine running Rt-11 for execution? The >ability to write disks in RT-11 format would also be useful. Another >possibility would be a RT-11 emulator that would run under Ultrix >similiar to DEC's RTEM which runs under VMS. Any input would be >greatly appreciated since I don't want to bring up a machine to run >that "other" operating system supplied by DEC. Thanks in advance. The problem with most available cross-compilers for RT-11 is that they use MACRO-11 as the output language. The problem with most RT-11 emulators on the VAX is that they use the PDP-11 emulation mode which is not available on the MVAX II (but may be on the MVAX III). HCR has/had a RT-11 emulator, but it wouldn't work on a MVAX II. I suppose what I'd do is contact Whitesmith's, if they're still around, and ask them. Or port PCC from the PDP-11. But then you'll need to re-write AS and build your own linker. There was a DEC to UNIX object file format conversion program back in the V6 days. It might help. Another wild idea is to run a PDP-11 co-processor on the MVAX II bus, either a KXT-11CA or MDB's 11/73 co-processor. The MVAX II could act as the file server for RT-11 on the co-processor. KXT-11CA's are available on the surplus market for maybe $600. If you're willing to run UNIX or ULTRIX on your 11/73, then I'd go with either HCR's RT-11 emulator or Whitesmith's C compiler. I have ported and used both methods for developing RT-11 software under UNIX. As far as programs that can read/write RT-11 disks, the only one I know of that works most of the time is RTPIP. I can get you a copy if you want. Cheers, Dan Ts'o Dept. Neurobiology Rockefeller Univ. 1230 York Ave. NY, NY 10021 212-570-7671 ...cmcl2!rna!dan rna!dan@cmcl2.arpa