For each of the following instructions, give the new destination contents and th
ID: 3786126 • Letter: F
Question
For each of the following instructions, give the new destination contents and the new settings of CF,SF,ZF,PF, and OF. Suppose that the flags are initially 0 in each part of this question. (Note: need not show AF) a. ADD AX,BX where AX contains 7FFFh and BX contains 0001h. b. SUB AL,BL where AL contains 01h and BL contains FFh. c. DEC AL where AL contains 00h. d. NEG AL where AL contains 7Fh. e. XCHG AX,BX where AX contains 1ABCh and BX contains 712Ah. f. ADD AL,BL where AL contains 80h and BL contains FFh. g. SUB AX,BX where AX contains 0000h and BX contains 8000h. h. NEG AX where AX contains 0001h. 3. Suppose ADD AX,BX is executed. In each of the following part, the first number being added is the contents of AX, and the second number is the contents of BX. Give the resulting value and tell whether unsigned or signed overflow occurred. a. 512Ch +4185h ------ b. FE12h +1ACBh ------ c. E1E4h +DAB3h ------ d. 7132h +7000h ------ e. 6389h +1176h ------ 4. Suppose SUB AX,BX is executed. In each of the following part, the first number is the initial contents of AX and the second number is the contents of BX. Give the resulting value and tell whether unsigned or signed overflow occurred. a. 2143h -1986h ------ b. 81FEh -19BCh ------ c. 19BCh -81FEh ------ d. 0002h -FEOFh ------ e. 8BCDh -71ABh ------
Explanation / Answer
3)
74FFh OVERFLOW : NO
Related Questions
Hire Me For All Your Tutoring Needs
Integrity-first tutoring: clear explanations, guidance, and feedback.
Drop an Email at
drjack9650@gmail.com
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.