Front panel switches - what did they do?

On 28/05/2016 11:27 AM, Paul Anderson wrote: Hi Paul, and others You have stimulated me to drag out a couple more useful programs - basic stuff, I used them to demo to students, and get them started. Also the practical side to check console printers and screens. I have retired, and left these systems behind, but they were marvellous gear. CONSOLE OUTPUT PROGRAM ---------------------- 012737 000104 177566 A: MOV #104, OUTPUT 012700 100000 MOV #100000, R0 005300 B: DEC R0 001376 BNE B 000770 BR A THIS PROGRAM OUTPUTS A CHAR TO THE CONSOLE. THE REGISTER CAN BE CHANGED TO TEST ANOTHER DEVICE. KEYBOARD ECHO TEST ------------------ 105737 177560 LOOP: TSTB @#177560 100375 BPL LOOP 013700 177562 MOV INPUT,R0 010037 177566 MOV R0,OUTPUT 000770 BR LOOP THIS PROGRAM WAITS FOR A KEY DOWN, THEN OUTPUTS IT BACK TO THE TERMINAL PRINT BUFFER. FULL DISPLAY EXERCISER ---------------------- 013700 177562 START: MOV @#177562,R0 012701 000124 MOV #80,R1 105737 177564 A: TSTB @#177564 100375 BPL A 010037 177566 MOV R0,@#177566 005301 DEC R1 001371 BNE A 105737 177564 B: TSTB @#177564 100375 BPL B 012737 000015 177566 MOV #15,@#177566 105737 177564 C: TSTB @#177564 100375 BPL C 012737 000012 177566 MOV #12,@#177566 000750 BR START THIS PROGRAM MONITORS KBD IN AND REPEATS THE CHARACTER TO THE SCREEN UNTIL THE NEXT KEY IS PRESSED. TO TEST LA36 ETC LINE 2 READS 012701 000204 MOV #132, R1 TO DISABLE CACHE - SLOWS PROGRAM DOWN ------------------------------------- 012737 000014 177746 MOV #14, CCR 000137 XXXXXX JMP @ A ( XXXXXX IS A: ADDRESS) Lionel.