Word Nulling

Word Nulling
0019ab78: 27bdfff8 addiu r29,r29,0xfff8
0019ab7c: 04a10002 bgez r5,0x 0019ab88		Branch if Preset Limit >= 0
0019ab80: 00a01021 addu r2,r5,r0		r2 = Preset Limit (in bytes)
0019ab84: 24a20003 addiu r2,r5,0x0003		r2 = Preset Limit + 3
0019ab88: 00022883 sra r5,r2,0x02		PL / 4 (in words)
0019ab8c: 18a00006 blez r5,0x 0019aba8		Branch if PL <= 0
0019ab90: 00001821 addu r3,r0,r0		Counter = 0
0019ab94: ac800000 sw r0,0x0000(r4)		Store Data = 0
0019ab98: 24630001 addiu r3,r3,0x0001		Counter += 1
0019ab9c: 0065102a slt r2,r3,r5
0019aba0: 1440fffc bne r2,r0,0x 0019ab94		Branch if Counter < Limit
0019aba4: 24840004 addiu r4,r4,0x0004		Pointer += 4
0019aba8: 27bd0008 addiu r29,r29,0x0008
0019abac: 03e00008 jr r31
0019abb0: 00000000 nop