INT 18 - Gravis Ultra Sound YEA_GUS.EXE - GET STATUS                            
	AX = 6900h
Return: AX = amount of DRAM(Dynamic Random Access Memory) RAM memory which essentially consists of a tiny capacitor for each bit of memory.  Since capacitors do not hold a charge indefinitely, DRAM must be constantly refreshed to avoid losing its contents.  Also, the process of reading the contents of the memory are destructive, meaning extra time must be spent restoring the contents of memory addresses which are accessed, so DRAM is slower than SRAM.  See also Refresh, SRAM. on card or 0000h if GUS not available
Program: YEA_GUS is a driver for the Graphics Ultra Sound which hooks INT 18h
	  and then shells out the the program requiring its services
SeeAlso: AX=6901h,AX=690Ah,AX=690Bh