Consider the two 8bit numbers A = 10110110 and B = 00110111. (a) Give the decimal equivalent
Question:
Consider the two 8bit numbers A = 10110110 and B = 00110111.
(a) Give the decimal equivalent of each number, assuming that (1) they are unsigned and (2) they are signed 2s complement.
(b) Add the two binary numbers and interpret the sum, assuming that the numbers are (1) unsigned and (2) signed 2s complement.
(c) Determine the values of the C (carry), Z (zero), N (sign), and V (overlow) status bits after the additions.
(d) List the conditional branch instructions from Table 98 that will have a true condition for each addition.
Table 98
Transcribed Image Text:
Conditional Branch Instructions Relating to Status Bits in the PSR Branch Condition Branch if zero Branch if not zero Branch if carry Branch if no carry Branch if minus Branch if plus Branch if overflow Branch if no overflow Mnemonic BZ BNZ BC BNC BN BNN BV BNV Test Condition Z = 1 Z = 0 C = 1 C=0 N = 1 N = 0 V = 1 V = 0
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Logic And Computer Design Fundamentals
ISBN: 9780133760637
5th Edition
Authors: M. Morris Mano, Charles Kime, Tom Martin
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