Get Unit Misc Data Pointer By Battle Unit Index

#   ROUTINE: GET UNIT MISC DATA POINTER BY BATTLE UNIT INDEX
#       Parameters:
#           r4 = (p_battleUnitIndex) Battle unit index (to find the unit misc data pointer for)
#       Returns:
#           r2 = (Unit misc data pointer) for specified battle unit index, or null if the specified battle unit index had no corresponding data.
 
8007a724: 3c03800a lui r3,0x800a                    
8007a728: 8c638a54 lw r3,-0x75ac(r3)                #   miscDataPointer = *0x80098a54;  
8007a72c: 00000000 nop
8007a730: 1060000e beq r3,r0,0x8007a76c             #   if (miscDataPointer == null)
8007a734: 00001021 addu r2,r0,r0                    #       return null;
8007a738: 3084ffff andi r4,r4,0xffff
                                                    #   do {
8007a73c: 8c620134 lw r2,0x0134(r3)                 #       miscDataPointer.battleUnit
8007a740: 00000000 nop
8007a744: 10400005 beq r2,r0,0x8007a75c             #       if (miscDataPointer.battleUnit != null) {
8007a748: 00000000 nop
8007a74c: 9042018a lbu r2,0x018a(r2)                #           battleUnitIndex = miscDataPointer.battleUnit.unitIndex
8007a750: 00000000 nop
8007a754: 10440005 beq r2,r4,0x8007a76c             #           if (battleUnitIndex == p_battleUnitIndex) 
8007a758: 00601021 addu r2,r3,r0                    #               return miscDataPointer;
                                                    #       }
8007a75c: 8c630000 lw r3,0x0000(r3)                 #       miscDataPointer = miscDataPointer.previous;
8007a760: 00000000 nop
8007a764: 1460fff5 bne r3,r0,0x8007a73c             #   } while (miscDataPointer != null);
8007a768: 00001021 addu r2,r0,r0                    #   return null;
8007a76c: 03e00008 jr r31
8007a770: 00000000 nop