Starting A Program (Placing It In "Run") - Prime Computer 50 Series Service Manual

Operating Instructions
Determine the appropriate bit settings using Tables 3~8 and 3-9.
Then, to change the Keys settings:
CP> MO RFCRS
CP> A KEYS
CP> current setting new setting
new setting /
CP> RCP address
To change the Modals settings:
CP> MO RFCRS
CP> A MODALS
CP> current setting new setting
new setting /
CP> RCP address
The processor will execute the instruction in the address specified
and set the CPU modes to those entered.
NOTE
DO NOT Master Clear the system after setting the Keys and
Modals. "SYSCLR" puts the CPU in basic mode (16S) and resets
all other modes.
3.6.1.12 Starting a Program (Placing it in "RUN")
Refer to "Booting the System" for another way to begin execution.
1. Enter "SYSCLR" if the machine must be initialized.
2. Set the program counter with the desired starting address.
CP> A RP
current setting new setting
new setting /
NOTE
"SYSCLR" leaves the program counter set to '1000.
3. Set any other registers or memory locations to their initial
values.
.
CP> A register-name
current value new value
new value /
CP> A segno/wordno
segno/wordno: value new value
segno/wordno: new value /
4. Type "RUN", to start the program and put the VCP in ST mode. Type
"RCP" to start the program and keep the VCP in CP mode.
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