Store 8019837c if not reacting?

store 8019837c if not reacting? 0018ee68: 3c028019 lui r2,0x8019

0018ee6c: 8c42f5f0 lw r2,-0x0a10(r2)
0018ee70: 00000000 nop
0018ee74: 14400008 bne r2,r0,0x0018ee98             branch if reacting?
0018ee78: 00000000 nop
0018ee7c: 3c028019 lui r2,0x8019
0018ee80: 8c42f8c8 lw r2,-0x0738(r2)                      load acting unit
0018ee84: 00000000 nop
0018ee88: 14820003 bne r4,r2,0x0018ee98            branch if not 0
0018ee8c: 00000000 nop
0018ee90: 3c018019 lui r1,0x8019
0018ee94: a025387c sb r5,0x387c(r1)                    store ???
0018ee98: 03e00008 jr r31
0018ee9c: 00000000 nop