Calculate Unit's Palette/Portrait (return Portrait)

Calculate Unit's Palette/Portrait (return Portrait)
0005e088: 27bdffe0 addiu r29,r29,0xffe0
0005e08c: afb00010 sw r16,0x0010(r29)
0005e090: 00808021 addu r16,r4,r0		r16 = Unit's Data Pointer
0005e094: afb10014 sw r17,0x0014(r29)
0005e098: afbf0018 sw r31,0x0018(r29)
0005e09c: 0c017848 jal 0x0005e120		Get Unit's Portrait/Palette
0005e0a0: 00a08821 addu r17,r5,r0		r17 = Stack Pointer
0005e0a4: a202015f sb r2,0x015f(r16)		Store Unit's Portrait
0005e0a8: 92230000 lbu r3,0x0000(r17)		Load Palette
0005e0ac: 304200ff andi r2,r2,0x00ff		r2 = Unit's Portrait
0005e0b0: a2030160 sb r3,0x0160(r16)		Store Unit's Palette
0005e0b4: 8fbf0018 lw r31,0x0018(r29)
0005e0b8: 8fb10014 lw r17,0x0014(r29)
0005e0bc: 8fb00010 lw r16,0x0010(r29)
0005e0c0: 27bd0020 addiu r29,r29,0x0020
0005e0c4: 03e00008 jr r31
0005e0c8: 00000000 nop

Return Locations

BATTLE.BIN
0017f4a8: 0017f388
0017f9bc: 0017f8a0
0018c824: 0018c758
Exclusively a BATTLE.BIN routine, could be moved to that file.