Hi,
While there is some chatter on the teletype, I thought I'd ask my first question. I have been able to get a number of the SIMH emulators to work and I am simply thrilled about the experience. Looking for a challenge I worked for about 5 hours last night on the SIMH for LGP-30....I can talk to the box a little but I was having a little trouble reproducing the Flexowriter operations for loading in programs manually via Flexowriter keyboard. Can anyone help point me in the right direction. Here is a little of what I did, below... SET CPU LGP30 I am working through the LGP-30 "Programming Class" manual and they say things like: Depress "manual input" --> which I believe is: SET CPU MANUAL then D A value (what value?) Type C3838 (C5614) on keyboard --> I need to use: SET CPU INPUT=TTI but what to enter the value? Depress "Fill instruction" button --> I believe this is accomplshe by SET CPU FILL (fills IR from A) Type 000B31K4 (B4953) on keyboard ----> How ??? using various combinations of D A + value. I am wondering about the use of the ' character such as with Depress "one operation" button ----> ?? Depress "execute instruction" button ---> SET CPU EXEC = value (assuming knows correct IR?) B4953 should be in 5614 by entering everything in decimal form. If I example 5614 the system returns all zeros, so whatever I was doing did not work. I played around a lot with D A command combinations and I was able to get the simulator to respond to a point so I know the thing will work once I learn the secrets. (I.e. from the manual) sim> d -n 64 10640 sim> ex -mn 64 64: B 400 sim> ex -mt 100 0100: B 0616 Can anyone share more manual input testing and program execution tips? Nothing fancy just something simple so I can start writing and running little programs. I figure then I could punch my own tapes and run them. I also understand in principle about the role drum memory, but I may not be applying this understanding to programming. I also assume the bootstrap is not in memory already. I looked over https://github.com/simh/simh/blob/5551a0dd9c0e9e3161ba974c1665c09380381a1b/L GP/lgp_cpu.c and I read about the DOS-based simulator, but I prefer to use SIMH Best, Bill Degnan Landenberg, PA
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