10 REM * SCREEN-FILL BENCHMARK›11 GRAPHICS 24›12 POKE 19,0:POKE 20,0›13 SCREEN=PEEK(88)+256*PEEK(89)›14 FOR I=0 TO 31›15 FOR J=0 TO 239›16 POKE SCREEN+J,255›17 NEXT J›18 SCREEN=SCREEN+240›19 NEXT I›20 TIME=PEEK(20)+256*PEEK(19)›21 GRAPHICS 0›22 PRINT TIME;" JIFFIES"›