بسم هللا الرحمن الرحيم Name:…………………………………… ID:……………………………………………. Quiz 6 King Fahd University of Petroleum & Minerals EE390 1. How many bits are in the 8088’s I/O address 2. What is the range of byte addresses in the 8088’s I/O address space 3. What is the size of the 8086’s I/O address space in the terms of word-wide I/O ports 4. In an 8086-based microcomputer system, what are the logic levels of A0 and (BHE)’ when a byte of data is being written to I/O address A000H? If a word of data is being written to address A000H? 5. In an 8088 microcomputer system, how many bus cycles are required to output a word of data to I/O address A000H? In an 8086 microcomputer system 6. Write an instruction sequence that outputs the byte of data 0FH to an output port at address 1000H 7. Write a sequence of instructions that inputs the byte of data from input ports at I/O address A000H and B000H, adds these values together, and saves the sum in memory location IO_SUM