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assem practice test.ashx

assem practice test.ashx - practice test 1

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CSE 2240 TEST 1 PRACTICE 1. What is the range of signed decimal values that can be represented in a 5-bit field using 2’s-complement? Give your answer in decimal and binary. -16 to 15 10000 to 01111 2. What is the purpose of the EIP register? Instruction pointer – points to where the program is currently executing 3. How much memory can be addressed in real mode? 1mb = 2^20 bytes 4. How much memory can be accessed in protected mode? 4gb = 2^32 bytes 5. In a microprogrammed architecture, what is the purpose of the CAR (control address register)? 6. List in order the three primary steps of the instruction cycle. Fetch, decode, execute 7. Order the four times of memory listed below in terms of access speed from fastest (1) to slowest (4). __3_RAM _2__cache _1__register __4_disk 8. Describe the relationship between machine code and microcode . Microcode is the layer between machine code and assembly code 9. Give the requested register value and status flag settings after each of the following instructions has executed. The register values should be expressed in
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