target rect (20,10)-(60,40)
fill (20,10)-(60,20) [0,0],[-,1]
fill (20,20)-(60,40) [0,1],[-,2]
fill (20,40)-(20,50) [0,3],[0,1]
string "0a" atpoint: (20,10) [0,0] fill: black
0
a
string "b1" atpoint: (20,20) [0,1] fill: black
b
1
string "cd2" atpoint: (20,30) [0,2] fill: black
c
d
2
blit (20,30)-(60,40) [0,2],[-,1], to (20,10)-(60,20) [0,0],[-,1]
blit (20,40)-(60,40) [0,3],[-,0], to (20,20)-(60,20) [0,1],[-,0]
fill (20,20)-(60,30) [0,1],[-,1]
fill (20,30)-(60,40) [0,2],[-,1]
fill (20,40)-(20,50) [0,3],[0,1]