ACTHD: 0xffffffff
EIR: 0x00000000
EMR: 0xffffffcd
ESR: 0x00000000
PGTBL_ER: 0x00000000
IPEHR: 0x00000000
IPEIR: 0x00000000
INSTDONE: 0xffe5fafe
INSTDONE1: 0x000fffff
    busy: Projection and LOD
    busy: Bypass FIFO
    busy: Color calculator
Ringbuffer: Reminder: head pointer is GPU read, tail pointer is CPU write
ringbuffer at 0x00000000:
0x00000000:      0x00000000: MI_NOOP
0x00000004:      0x00000000: MI_NOOP
0x00000008:      0x00000000: MI_NOOP
0x0000000c:      0x00000000: MI_NOOP
0x00000010:      0x00000000: MI_NOOP
0x00000014:      0x00000000: MI_NOOP
       ==== same ====
0x0001ffd0:      0x00000000: MI_NOOP
0x0001ffd4:      0x00000000: MI_NOOP
0x0001ffd8:      0x00000000: MI_NOOP
0x0001ffdc:      0x00000000: MI_NOOP
0x0001ffe0:      0x00000000: MI_NOOP
0x0001ffe4:      0x00000000: MI_NOOP
0x0001ffe8:      0x00000000: MI_NOOP
0x0001ffec:      0x00000000: MI_NOOP
0x0001fff0:      0x00000000: MI_NOOP
0x0001fff4:      0x00000000: MI_NOOP
0x0001fff8:      0x00000000: MI_NOOP
0x0001fffc:      0x00000000: MI_NOOP