11/45 front panel question, AKA "Program Toggling for Dummies" - LONGish

I apologize for the lengthy nature of this email, but I think it will be beneficial.... and show Is three correctly. ----------------------------------------------------------------------- Jay, here's an excerpt from an email exchange I had with Guy back when I was getting my 11/40 up and running. This should help you. It helped me. Guy >> Halt. Load address 01000. Deposit a "walking" one's pattern. Load Guy >> address 01000 and examine. Make sure that all the bits are set Guy >> properly. Ashley > What's a walking ones pattern? Guy >> 0, 1, 2, 4, 10, 20, etc. (octal of course). Ashley > So, using the switch registers... Ashley Ashley > Octal Binary (switches on panel) Ashley > 000000 000 000 000 000 000 000 Ashley > 000001 000 000 000 000 000 001 Ashley > 000002 000 000 000 000 000 010 Ashley > 000004 000 000 000 000 000 100 Ashley > 000010 000 000 000 000 001 000 Ashley > 000020 000 000 000 000 010 000 Ashley > 000040 000 000 000 000 100 000 Ashley > 000100 000 000 000 001 000 000 Ashley > 000200 000 000 000 010 000 000 Ashley > 000400 000 000 000 100 000 000 Ashley > 001000 000 000 001 000 000 000 Ashley > 002000 000 000 010 000 000 000 Ashley > 004000 000 000 100 000 000 000 Ashley > 010000 000 001 000 000 000 000 Ashley > 020000 000 010 000 000 000 000 Ashley > 040000 000 100 000 000 000 000 Ashley > 100000 001 000 000 000 000 000 Ashley > 200000 010 000 000 000 000 000 Ashley > 400000 100 000 000 000 000 000 Ashley Ashley > Just wanted to spell it out to make sure I'm speaking your language. Ashley > You want me to deposit each one of these values, one at a time, at Ashley > address 01000, then examine it to make sure it's set to what I told Ashley > it to set it to. Right? Or should I just start depositing these at Ashley > address 001000 and let it deposit each value at consecutive addresses, Ashley > then since the examine will also read consecutive addresses (I think) Ashley > each time I press the examine switch, it will just read them all back to Ashley > me in sequence? Guy >> First things first. Make sure that memory works. Try the walking bit Guy >> pattern. I'd also check to make sure that *all* of the cards are seated Guy >> properly. The jumper between the CPU and the first memory backplane can Guy >> come loose easily. Make sure it's in properly. Guy >Guy >> Once it appears that you can talk to memory, try loading the following Guy >> program: Guy >> 1000 5000 Guy >> 5200 Guy >> 6100 Guy >> 0005 Guy >> 0775 Guy >> load address 1000 & start. You should see a bit rotate around on the Guy >> data LEDs. Ashley > Again, let me spell it out and tell me if I'm understanding you.... Ashley Ashley > set switch registers to 001000, press load address. Ashley > set switch registers to 005000, press deposit (the system will deposit Ashley > 005000 at address 001000) Ashley > set switch registers to 005200, press deposit (the system will deposit Ashley > 005200 at the next address) Ashley > set switch registers to 006100, press deposit Ashley > etc... Ashley > After I deposit the 000775, then I set the switch registers to 001000, press Ashley > load address, then press start. Ashley > Then I should see the rotating bit. Ashley Ashley > Correct???? Guy >> Correct.