<= R0 = version number * 100
R1 = pointer to ZapRedraw_Divide routine
R2 = pointer to ZapRedraw_MoveBytes routine
This SWI reads the current version number of ZapRedraw. It is only present in version 0.40 and later. It also provides the address of two useful ZapRedraw routines, where the SWI overhead is significant in the operation time.
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