| 100 REM "A little stopwatch using the 16*2 shield" | |
| 200 REM "The setup()" | |
| 210 D=0: T=0: U=0: S=0: C=0 | |
| 220 PUT &2,12: PRINT &2;"Time = "; | |
| 230 GOSUB 600 | |
| 300 REM "The loop()" | |
| 320 GET &2,A | |
| 330 IF A=10 AND C=0 THEN C=A: GOTO 400 | |
| 340 IF C=10 AND A=0 THEN C=0 | |
| 350 IF A=49 THEN 500 | |
| 360 DELAY 10 | |
| 370 IF S=1 THEN T=MILLIS(10)-D | |
| 380 IF T<>U THEN U=T: GOSUB 600 | |
| 390 GOTO 300 | |
| 400 S=(S+1)%2:IF S=1 THEN D=MILLIS(10) | |
| 499 GOTO 300 | |
| 500 END | |
| 600 REM "The display refresh" | |
| 610 @Y=0:@X=8:PRINT &2;" "; | |
| 620 @Y=0:@X=8:PRINT &2;T; | |
| 630 RETURN | |