On Sat, Jul 25, 2020 at 01:22:38AM +0200, Johnny Billquist wrote: > > > > I thought the high bit setting would be turned off if you used set tti 7b or > > 8b but never verified. > > Which obviously won't help if the software running inside simh then expects > MARK parity... > Correct. That was for software that doesn't want mark parity.
Probably should had quoted this from the posting. > So basically pdp8 is always doing KSR. I assume that I don’t want that for > pdp11. > pdp8_doc.doc 2.4.3 KL8E Terminal Input says it will not force mark parity if you specify 7P, 7B, or 8B. The rest of the context. I am running it in the windows console. I can see that setting TTU_KSR on the mode flags passed to sim_tt_impcvt will do the job. The pdp-8 console hard code this bit on else uptr->buf = sim_tt_inpcvt (c, TT_GET_MODE (uptr->flags) | TTUF_KSR); the is also a KSR mode switch MTAB tti_mod[] = { { TT_MODE, TT_MODE_KSR, "KSR", "KSR", &tty_set_mode }, But this only forces UC (sim_console.h) #define TT_MODE_KSR (TT_MODE_UC) _______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh