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The charts in Figure 3-3 explain sprite positioning.

By using these values, you can position each sprite anywhere. By moving the sprite a single dot position at a time, very smooth movement is easy to achieve.

SPRITE POSITIONING SUMMARY

Unexpanded sprites are at least partially visible in the 40 column, by 25 row mode within the following parameters: 

                           1 < X < 343

                          30 < Y < 249
In the 38 column mode, the X parameters change to she following: 
                          8 <= X <= 334
In the 24 row mode, the Y parameters change to the following: 
                         34 <= Y <= 245

Expanded sprites are at least partially visible in the 40 column, by 25 row mode within the following parameters: 

                        489 >= X <= 343
                          9 >= Y <= 249
In the 38 column mode, the X parameters change to the following: 
                        496 >= X <= 334
In the 24 row mode, the Y parameters change to the following: 
                         13 <= Y <= 245
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This page has been created by Sami Rautiainen.
Read the small print. Last updated May 12, 2002.