SEQ_ID_RAMDAC_CNTL
sr18 = RSeq(ba, SEQ_ID_RAMDAC_CNTL);
WSeq(ba, SEQ_ID_RAMDAC_CNTL, sr18);
WSeq(ba, SEQ_ID_RAMDAC_CNTL, 0xC0);
sr18 = RSeq(ba, SEQ_ID_RAMDAC_CNTL);
WSeq(ba, SEQ_ID_RAMDAC_CNTL, sr18);
WSeq(ba, SEQ_ID_RAMDAC_CNTL, 0xC0);