Computer organization
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I'm guessing the intended answer was c) 600, though the question is very bad because it requires multiple assumptions to be made.
- eugene.yarovoi October 09, 2013Let's say we assume that having 24-bit instructions means that instructions are laid out contiguously in memory (there are no, say, 8-bit empty gaps). Let's further assume that the address is measured in 8-bit bytes, and hence instruction pointers will increase in multiples of 24 / 8 = 3. (This is not a good assumption because the machine could instead have a word size of 24 bits, and then instruction pointers would advance in increments of 1 and all of the choices would be valid).
Based on the two assumptions above, we get that locations of the form 300 (starting address) + 3 * n are definitely valid. 400, 500, and 700 are not of this form, and 600 would be the answer.