Drawing ships: exlook

       Name: exlook                                                  [Show more]
       Type: Variable
   Category: Drawing ships
    Summary: An unused block of explosion data
    Summary: A table to shift X left by one place when X is 0 or 1
    Context: See this variable in context in the source code
 References: This variable is used as follows:
             * PTCLS2 uses exlook


.exlook

 EQUB %00               ; Looking up exlook,X will return X shifted left by one
 EQUB %10               ; place, where X is 0 or 1
                        ;
                        ; This is used in the PTCLS2 routine to update the top
                        ; bit of the 9-bit x-coordinate for the explosion sprite