Hello! Where's 2.5 stored? I have copies of both 2.2 and 2.3 from the IBIB site, and the stuff from Bitsavers. But 2.5? When was that created? And where would I find it? But that is a good start. ----- Gregg C Levine gregg.drw...@gmail.com "This signature fought the Time Wars, time and again."
On Mon, Dec 28, 2015 at 10:16 AM, Johnny Billquist <b...@softjar.se> wrote: > Well, the difference between the 11/23 and 11/23+ is actually that the > former only supports 18-bit addressing. The 23+ added the 22-bit addressing. > Although, actually finding real 11/23 CPUs are unusual. Most were upgraded > to 23+, or were actually 23+ from the start. > (That is, unless I have a bit error somewhere in my memory.) > > When XXDP V2.2 is slightly old. Why are you running that, and not 2.5? Also, > unfortunately DEC had a tendency to break XXDP on older machines when they > made changes. XXDP was rather poorly maintained. > > When you are booting XXDP on your 11/23, it halts, but when you continue it > says that it was unable to boot XXDP-XM, and instead boots XXDP-SM. So > obviously it tries -XM by default, so I'm unsure why you think that it's > booting -SM at any time normally. > > And when -SM boots up it reports 28KW of memory, which seems consistent with > a small memory machine, and that -XM would not be able to boot. So, when you > are booting XXDP on your 11/44 or 11/23+, are you really sure you only have > 64Kbyte memory configured? I would not expect -XM to boot then either. > > Johnny > > > On 2015-12-28 16:00, Mattis Lind wrote: >> >> I have some troubles running a known working XXDP V2.2 image in SimH on >> a 11/23 (without +), 11/03, 11/04, 11/05 and 11/20. >> >> I have tested this on a PDP-11/44 and a PDP-11/23+ CPU and it works >> fine. Testing the same image in SimH on 11/23+ and 11/44 config with >> 64kbyte memory starts the XXDP fine. >> >> https://dl.dropboxusercontent.com/u/96935524/xxdp.dsk >> >> >> Now I have to be honest. I am not entirely sure which CPU configs should >> be able to run XXDP V2.2 (Small Monitor). >> >> But I basically thought that switching to 11/23 (without plus) should >> work fine since it is very similar to the plus. Just removing the two >> SLUs and the Boot ROMs would make it identical as far as I can see it. >> >> But it doesn't start. >> >> sim> b rq0 >> >> >> HALT instruction, PC: 000104 (JMP SP) >> >> Doing a continue actually makes it to boot: >> >> sim> c >> >> NOT ENOUGH MEMORY TO BOOT XXDP-XM >> >> >> >> BOOTING UP XXDP-SM SMALL MONITOR >> >> >> >> XXDP-SM SMALL MONITOR - XXDP V2.2 >> REVISION: C0 >> BOOTED FROM DU0 >> 28KW OF MEMORY >> NON-UNIBUS SYSTEM >> >> RESTART ADDR: 152010 >> TYPE "H" FOR HELP >> >> . >> >> But it is not entirely happy since the very simple GKAAA0 cpu test that >> runs fine in 11/23+ mode fails. >> >> .R GKAAA0 >> GKAAA0.BIC >> >> HALT instruction, PC: 000104 (JMP SP) >> sim> >> >> I know that SimH is not supposed to be able to run the diags but what is >> the difference on a SimH level between 11/23 and 11/23+ that causes one >> to run and the other not? >> >> Then I tested some other CPUs: >> >> 11/34, 11/40, 11/44, 11/45, 11/60, 11/70, 11/73, 11/83, 11/84, 11/93 >> >> The all can start XXDP V2.2 (SM) and run GKAAA0 fine. >> >> But >> >> 11/03 and 11/23 give me the halt. In the 11/03 case it is not possible >> to do a continue. >> >> Testing 11/04, 11/05 and 11/20 all give the same result. It never boots >> but gets stuck in some loop where it seems to poll the console. >> >> Step expired, PC: 150674 (BPL 150750) >> sim> s >> >> Step expired, PC: 150750 (MOV (SP)+,R1) >> sim> s >> >> Step expired, PC: 150752 (RTS PC) >> sim> s >> >> Step expired, PC: 151006 (TST R0) >> sim> s >> >> Step expired, PC: 151010 (BEQ 151002) >> sim> s >> >> Step expired, PC: 151002 (JSR PC,150664) >> sim> s >> >> Step expired, PC: 150664 (CLR R0) >> sim> s >> >> Step expired, PC: 150666 (MOV R1,-(SP)) >> sim> s >> >> Step expired, PC: 150670 (TSTB @#177560) >> sim> s >> >> Step expired, PC: 150674 (BPL 150750) >> sim> s >> >> >> SimH is built from head: >> >> sim> sh ver >> PDP-11 simulator V4.0-0 Beta >> Simulator Framework Capabilities: >> 32b data >> 32b addresses >> Ethernet Packet transports:PCAP:NAT:UDP >> Idle/Throttling support is available >> Virtual Hard Disk (VHD) support >> Asynchronous I/O support >> FrontPanel API Version 1 >> Host Platform: >> Compiler: GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.2.76) >> Simulator Compiled: Dec 27 2015 at 17:51:17 >> Memory Access: Little Endian >> Memory Pointer Size: 64 bits >> Large File (>2GB) support >> RegEx support for EXPECT commands >> OS clock resolution: 1ms >> Time taken by msleep(1): 2ms >> OS: Darwin localhost 12.5.0 Darwin Kernel Version 12.5.0: Sun Sep 29 >> 13:33:47 PDT 2013; root:xnu-2050.48.12~1/RELEASE_X86_64 x86_64 >> >> git commit id: ea4d9a16 >> >> Tested SimH 3.9 and it does the same >> >> 11/04, 11/05 and 11/20 all lack MMU if this has to do with it. But 11/03 >> also lack MMU and is not behaving the same, although not booting. The >> 11/23 has the MMU but is still not booting while the almost identical >> 11/23+ boots just fine. >> >> Well. If someone can help me sort this out I am would be happy. My next >> step is to try to boot the same image on a real 11/04, 11/03 and a 11/23 >> (without +) to see if that works. Just need to toggle in that long >> bootstrap. >> >> /Mattis >> >> >> >> _______________________________________________ >> Simh mailing list >> Simh@trailing-edge.com >> http://mailman.trailing-edge.com/mailman/listinfo/simh >> > > -- > Johnny Billquist || "I'm on a bus > || on a psychedelic trip > email: b...@softjar.se || Reading murder books > pdp is alive! || tryin' to stay hip" - B. 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