Fermata

0001589c: 94c20000 lhu r2,0x0000(r6)           load?
000158a0: 90830000 lbu r3,0x0000(r4)           load hold length
000158a4: 34420100 ori r2,r2,0x0100
000158a8: a4c20000 sh r2,0x0000(r6)            store new?
000158ac: 24820001 addiu r2,r4,0x0001
000158b0: 03e00008 jr r31
000158b4: a4c30074 sh r3,0x0074(r6)            store hold length