INT 2F - ThunderByte TBLOG - WRITE STRING TO LOG                                
	AX = C9FDh
	DS:SI -> ASCIZA NUL-terminated ASCII string.	The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h.  Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. string (max 110 chars)
Return: AH = 00h
	AL = last character in string
	CX = number of unused characters in string
	SI,DI destroyed
Notes:	The string can also be terminated with a '%'-character.
	This function is never called within ThunderBYTE Anti-Virus.
SeeAlso: AX=C900h