INT 15 - Compaq EISA System ROM 04/08/93 - ??? AX = D823h BL = subfunction??? (00h or 80h) BH = ??? DS:SI -> buffer for ??? (see #00541) Return: CF clear if successful AH = 00h DH = 08h DL = ??? CF set on error AH = error code 86h BL neither 00h nor 80h 87h ???