CRT_ID_START_ADDR_LOW
WCrt(ba, CRT_ID_START_ADDR_LOW, 0x00);
WCrt(ba, CRT_ID_START_ADDR_LOW, 0x00);
WCrt(ba, CRT_ID_START_ADDR_LOW, 0x00);
WCrt(ba, CRT_ID_START_ADDR_LOW, 0x00);
WCrt(ba, CRT_ID_START_ADDR_LOW, 0x00);
WCrt(ba, CRT_ID_START_ADDR_LOW, 0x00);
WCrt(ba, CRT_ID_START_ADDR_LOW, 0x00);
WCrt(ba, CRT_ID_START_ADDR_LOW, 0x00);
WCrt(ba, CRT_ID_START_ADDR_LOW, ((unsigned char)off));
WCrt(ba, CRT_ID_START_ADDR_LOW, 0x00);
WCrt (ba, CRT_ID_START_ADDR_LOW, 0x00);
regs->crt[CRT_ID_START_ADDR_LOW] = 0x00;
cpos = RCrt(ba, CRT_ID_START_ADDR_LOW) & 0xff;