INT 32 - NOISE.SYS v0.53+ - ADD 16-BIT SAMPLE TO RANDOM POOL

	AX = 6E13h
	DX = sample
Return: CF set on error
	    AL = error code (FCh,FEh) (see #03166)
	CF clear if successful
	    CX = number of random bytes waiting
SeeAlso: AX=6E00h,AX=6E11h