18308045-谷正阳-第三次作业1
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2022-08-08
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MULTIPLE CHOICES
1. What are the design principles for modern computers?
(a) Instructions directly executed by hardware
(b) Provide plenty of registers
(c) Instructions should be easy to decode
(d) Only loads, stores should reference memory
(e) Minimize rate at which instructions are issued
(a)(b)(c)(d)
2. Which of following is true for the cell?
(a)
Memories consist of a number of cells
(b)
A cell with k bits can hold one of 2
k
different values
(c)
If an address has m bits, the maximum number of cells addressable is 2m
(a)(b)
3. Which of following is true about byte?
(a)
1 byte is 8-bit
(b)
1 byte is 4-bit
(c)
64-bit Word: 8 bytes per word
(d)
32-bit Word: 8 bytes per word
(a)(c)
4. The von Neumann model of a computer consists of three major components: the
central processing unit (CPU), main memory, and input-output. In which of these
components might we find the 32 registers of a MIPS processor?
A. CPU
B. Main memory
C. Input-output
D. CPU as well as main memory
E. Main memory as well as input-output
(A)
5.Consider the sequence of four instructions shown below.
loop: lw $6, 0($5)
add $7, $7, $6
addi $5, $5, -4
bne $5, $8, loop
In the space provided below, show the binary representation of each of the four instructions in this
sequence. Clearly mark the instruction fields and show their decimal equivalent.
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