Something height related?

000897dc: 27bdffe0 addiu r29,r29,0xffe0
000897e0: afb00010 sw r16,0x0010(r29)
000897e4: 00808021 addu r16,r4,r0
000897e8: afbf0018 sw r31,0x0018(r29)
000897ec: afb10014 sw r17,0x0014(r29)
000897f0: 8e11008c lw r17,0x008c(r16)
000897f4: 8e030088 lw r3,0x0088(r16)
000897f8: 8e040090 lw r4,0x0090(r16)
000897fc: 10600005 beq r3,r0,0x00089814
00089800: 34020001 ori r2,r0,0x0001
00089804: 1062000e beq r3,r2,0x00089840
00089808: 00000000 nop
0008980c: 08022621 j 0x00089884
00089810: ae11008c sw r17,0x008c(r16)
00089814: 0c01f4fd jal 0x0007d3f4
00089818: 02002021 addu r4,r16,r0
0008981c: 00022300 sll r4,r2,0x0c
00089820: 86030042 lh r3,0x0042(r16)
00089824: 8e020088 lw r2,0x0088(r16)
00089828: 00031b00 sll r3,r3,0x0c
0008982c: 00831823 subu r3,r4,r3
00089830: 24420001 addiu r2,r2,0x0001
00089834: 0071001a div r3,r17
00089838: 00008812 mflo r17
0008983c: ae020088 sw r2,0x0088(r16)
00089840: 8e03001c lw r3,0x001c(r16)
00089844: 00000000 nop
00089848: 0064102a slt r2,r3,r4
0008984c: 10400003 beq r2,r0,0x0008985c
00089850: 02231021 addu r2,r17,r3
00089854: 08022619 j 0x00089864
00089858: ae02001c sw r2,0x001c(r16)
0008985c: ae04001c sw r4,0x001c(r16)
00089860: a2000087 sb r0,0x0087(r16)
00089864: 8e02001c lw r2,0x001c(r16)
00089868: 00000000 nop
0008986c: 04410002 bgez r2,0x00089878
00089870: 00000000 nop
00089874: 24420fff addiu r2,r2,0x0fff
00089878: 00021303 sra r2,r2,0x0c
0008987c: a6020042 sh r2,0x0042(r16)
00089880: ae11008c sw r17,0x008c(r16)
00089884: ae040090 sw r4,0x0090(r16)
00089888: 8fbf0018 lw r31,0x0018(r29)
0008988c: 8fb10014 lw r17,0x0014(r29)
00089890: 8fb00010 lw r16,0x0010(r29)
00089894: 27bd0020 addiu r29,r29,0x0020
00089898: 03e00008 jr r31
0008989c: 00000000 nop