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1–3 Why is assembly language called a low-level language and C a high-level language??

1–5 We briefly introduced the CISC and RISC processor types in this chapter. From this

discussion, give some of the differences between these two processor types.?

2–1 Describe the execution cycle. What is the default mode of execution?

2–2 What are the main components of the system bus? Describe the functionality of each

component.?

2–3 If a system uses a 1.5-GHz clock, what is the clock period?

2–10 What are the differences between ROM and RAM?

2–11 Compare and contrast DRAM and SRAM.?

3–1 What is the purpose of providing various registers in a processor?

3–2 What are the three address spaces supported by the Pentium processor in the protected

mode?

4–3 What is an addressing mode? Why does Pentium provide several addressing modes?

4–7 Use the following data definitions to answer this question:

.DATA

num1 DW 100

num2 DB 225

char1 DB ’Y’

num3 DD 0

Identify whether the following instructions are legal or illegal. Explain the reason for

each illegal instruction.

(a) mov EAX,EBX (b) mov EAX,num2

© mov BL,num1 (d) mov DH,char1

(e) mov char1,num2 (f) mov IP,num1

(g) add 75,EAX (h) cmp 75,EAX

(i) sub char1,’A’ (j) xchg AL,num2

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