1. Using n= 8 bits and all of following internal representations for signed integers
1. signed magnitude
2. one's complement
3. two's complement give the codes for each of the following signed decimal integer values, fill in values directly into the table below.
Given each answer as a 2-digit hexadecimal value. It is not necessary to show your work (base conversion, twos complementing operations.
|
Decimal
|
SM
|
One's complement
|
two's complement
|
|
-98
|
|
|
|
|
-89
|
|
|
|
|
-1
|
|
|
|
|
1
|
|
|
|
|
75
|
|
|
|
|
126
|
|
|
|
2. Given the 32-bit two's complement internal representation for each of the following signed integers. Give each answer in hexadecimal (8 digits). Show your work
1. 1,234,567,890
2. -2,777,888,999
3. What signed decimal integer is represented by each of the following 32-bit two's complement representation? show your work .
1. 7E45F012
2. EA65110B
4. Using figures to illustrate the following addressing modes
o Immediate addressing
o Direct addressing
o Indirect addressing
o Register addressing
o Register indirect addressing
o Displacement addressing
- Relative addressing
- Base-register addressing
- index addressing
5. An instruction is stored at location 300 with its address field at location 301. The address field has the value 400. A processor register R1 contains the number 200. Evaluate the effective address if the addressing mode of the instruction is a) direct; b) immediate; c) relative; d) register indirect; e) index with R1 as the index register
6. A nonpipleline system takes 50ns to process a task. The same task can be processed in a six-segment pipeline with a clock cycle of 10 ns. Determine the speedup ratio of the pipeline for 100 tasks. What is the maximum speedup that can be acheived?