--- /dev/null
+REM TEST DIGITAL I/O (0)\r
+REM\r
+REM DEFINE LAB8/E FUNCTIONS\r
+ UDEF INI(N), PLY(N), DLY(N), DIS(S,E,N,X)\r
+ UDEF SAM(C,N,P,T), CLK(R,O,S), CLW(N), ADC(N)\r
+ UDEF GET(M,L), PUT(M,L), DRI(N), DRO(M,N)\r
+REM\r
+10 PRINT "ENTER STEP RATE [MS] (0=END) ";\r
+ INPUT R\r
+ IF R=0 GOTO 30\r
+ PRINT "ENTER # OF CYCLES ";\r
+ INPUT N\r
+ W = CLK(3,R,0)\r
+REM\r
+ FOR I=1 TO N\r
+ C = 1\r
+20 W = DRO(0,0)\r
+ W = DRO(C,0)\r
+ C = C*2\r
+ W = CLW(0)\r
+ IF C<4096 GOTO 20\r
+ NEXT I\r
+REM\r
+ GOTO 10\r
+30 END\r