CRT_ID_PRESET_ROW_SCAN
WCrt(ba, CRT_ID_PRESET_ROW_SCAN, 0x00);
WCrt(ba, CRT_ID_PRESET_ROW_SCAN, 0x00); /* no panning */
WCrt(ba, CRT_ID_PRESET_ROW_SCAN, 0x00); /* no panning */
WCrt(ba, CRT_ID_PRESET_ROW_SCAN, 0x00);
WCrt(ba, CRT_ID_PRESET_ROW_SCAN, 0x00);
WCrt (ba, CRT_ID_PRESET_ROW_SCAN, 0x00);
regs->crt[CRT_ID_PRESET_ROW_SCAN] = 0x00;