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Unformatted text preview: instructions so that each of AX, BX, CX, DX, and SI ends up with the same values it started with. You must use four POP instructions, but you may change the destinations and positions of the POP instructions in the code. 2 3. Write an 8086 instruction sequence to implement the following flowchart. Start at the top box. Assume that black , white , gray , and green are byte variables holding unsigned binary data and that black and white are arrays. 4. Let tan be an ASCII character string (byte array) of 70 characters. Write an 8086 instruction sequence to do the following. Use string instructions to copy tan to array pink . Replace each non-letter character in pink by ? (= 3FH). Letter characters in pink are not to change. (See Brey, p. 34 for a table of ASCII codes.)...
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This note was uploaded on 01/25/2012 for the course EE 3750 taught by Professor Desouza during the Fall '08 term at LSU.
- Fall '08