Action data nulling

0018adf4: 3c048019 lui r4,0x8019
0018adf8: 8c842d90 lw r4,0x2d90(r4)
0018adfc: 27bdffe8 addiu r29,r29,0xffe8
0018ae00: afbf0010 sw r31,0x0010(r29)
0018ae04: 0c062f5d jal 0x0018bd74			current action data nulling
0018ae08: 00000000 nop
0018ae0c: 3c048019 lui r4,0x8019
0018ae10: 8c842d8c lw r4,0x2d8c(r4)
0018ae14: 0c062f5d jal 0x0018bd74			
0018ae18: 00000000 nop
0018ae1c: 3c028019 lui r2,0x8019
0018ae20: 8c422d8c lw r2,0x2d8c(r2)
0018ae24: 00000000 nop
0018ae28: a0400000 sb r0,0x0000(r2)			store miss
0018ae2c: 8fbf0010 lw r31,0x0010(r29)
0018ae30: 27bd0018 addiu r29,r29,0x0018
0018ae34: 03e00008 jr r31
0018ae38: 00000000 nop