|   Control Structures   |   At   |   From..to   | 
| At..forThis control structure repeatedly executes the instructions contained in the body on every tick from time<t1>to<t1>+<t2>inclusively:
    At <t1> for <t2>: <body> ...
     | ||
|   Control Structures   |   At   |   From..to   | 
| ©1999,2000 Mark Pearson
m.pearson@ukonline.co.uk April 30, 2000 | ||