Store units coordinates

Store units coordinates

 0019f258: 3c03801a lui r3,0x801a
 0019f25c: 8c630bbc lw r3,0x0bbc(r3)
 0019f260: 90820000 lbu r2,0x0000(r4)
 0019f264: 00000000 nop
 0019f268: a0620047 sb r2,0x0047(r3)             store as units X coordinate
 0019f26c: 3c03801a lui r3,0x801a
 0019f270: 8c630bbc lw r3,0x0bbc(r3)
 0019f274: 90820002 lbu r2,0x0002(r4)
 0019f278: 00000000 nop
 0019f27c: a0620048 sb r2,0x0048(r3)             store as units Y coordinate
 0019f280: 3c05801a lui r5,0x801a
 0019f284: 8ca50bbc lw r5,0x0bbc(r5)
 0019f288: 90830001 lbu r3,0x0001(r4)            load map level
 0019f28c: 94a20048 lhu r2,0x0048(r5)
 0019f290: 00031bc0 sll r3,r3,0x0f
 0019f294: 30427fff andi r2,r2,0x7fff
 0019f298: 00431025 or r2,r2,r3
 0019f29c: 03e00008 jr r31
 0019f2a0: a4a20048 sh r2,0x0048(r5)            store map level