000289a4 - 000289d0

000289a4: 946f000a lhu r15,0x000a(r3)                 # referenced by patch_card_specific_delay; when card IRQ triggeres, ?
000289a8: 3c080000 lui r8,0x0000
000289ac: 01e2c025 or r24,r15,r2
000289b0: 37190012 ori r25,r24,0x0012
000289b4: a479000a sh r25,0x000a(r3)
000289b8: 00000000 nop
000289bc: 240800c8 addiu r8,r0,0x00c8
000289c0: 2508ffff addiu r8,r8,0xffff
000289c4: 1500fffe bne r8,r0,0x000289c0               # hold CPU for c8 instruction cycles
000289c8: 00000000 nop
000289cc: 03e00008 jr r31
000289d0: 00000000 nop