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PDP-11 Test Panels |
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PDP-11 Test Panels
Toggle-Ins
From the PDP-11/70 Maintenance Service Guide,
Chapter 4:
There are several useful toggle-ins that are probably not very well known. They are as follows:
Memory Management
Use the following toggle-in to verify the correct operation of Memory Management Relocation.
200/012737 MOV #400,@#177572 (load maint. bit in MMRO)
202/000400
204/177572
206/012737 MOV #070707,@#200 (move 070707 to virtual 200)
210/070707
212/000200
214/000000 HLT
300/000300 Preset loc 300 to 300
17772300/077406 Set Kernal I PDR 0 to R/W 4K page
17772340/000001 Set Kernal I PAR 0 to (Base address 100)
Load Address 200
Start Display = 000216 (Halt@214)
Load Address 300
Exam Display = 070707 ... Relocation works
Unibus Map Checkout
Use the following console operating procedure to verify the correct operation of the Unibus Map.
Load Address 500
Deposit 125252 Known Data
Load Address 17000500
Deposit 125252 Data Path Ok
Load Address 17000700
Deposit 070707 Known Data
Load Address 17770202 Map register 0 Hi
Deposit 000000 Relocation constant
Load Address 17770200 Map register 0 Lo
Deposit 000200 Relocation constant
Load Address 17772516 MMR3
Deposit 000040 Enable map
Load address 17000500 Relocates to 700
Examine 070707 ... Relocated ok
