What is the representation of the exponent

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Reference no: EM131847212

Assignment

Problem 1

Represent each o f the following decimal numbers i n each o f the following binary representations using 8-bits:

1. Signed magnitude 2 . One's complement 3 . Two's complement
A. 8 2
B. - 1 7
C. Add the t w o ' s complement o f A and B above and then convert the result t o decimal.

Problem 2

Using the 1 4 - b i t floating point model, what i s the Signed Magnitude Representation -normalized & biased for: - 1 0 0 . 3 7 5
A. What is the representation of the Sign?
B. What is the representation of the Exponent?
C. What is the representation of the Significant?
D. What is the entire 1 4 - bit representation?

Problem 3

Complete the chart below for the following questions for the P e p / 8 machine language instructions given. Each Instruction starts from the Original Content ( i . e . each instruction is independent and i s not based o n the previous instruction). You will need t o jump ahead t o Chapter 6 t o determine ( D ) for one o f the instructions.

A: Accumulator X : Index Register
Me m [ 0 A3 F ] : Contents of Memory 0A3F Mem [ 2A41 ] : Contents o f Memory 0A41

A. What does the instruction do ? ( Do )
B. Which register does it specify? (Register)
C. Which addressing mode does it specify? (Mode)
D. Given the original content, what is the content after the execution of the following instructions:

	Do	Rgister	Mode	A	X	Mem[0A3C]	Mem[A42]
Original Content				10B6	FE25	0A41	AF30
Insturction
792A42
E12A42
A90A3C
C22A42

Problem 4

Determine the output o f the following machine-language program by running it in Pep/8. The left column in each part is the memory address of the first byte on the line:

Address	Instrution	Description
0000	C1000C
0003	18
0004	F1000B
0007	51000B
000A	00
000B	00
000C	FFDA

A. Submit the code with comments describing each line.
B. What is the output of the program?
C. The instruction at address 0003 is a unary instruction. What does that mean?
D. What is the instruction at 0003 doing? Give the binary value of the accumulator before and after the command.

Problem 5

Write a machine-language program t o output your first name o n the output device. Write it in a format suitable for the loader and execute it on the PEP/8 simulator. You may only use instructions in Fig 4.6. You shall submit

A. A written algorithm
B. Your commented program similar t o the Machine Language (hex) of Fig 4.35
C. The hexadecimal program suitable for the P e p / 8 loader. (Cut & paste the text into your document s o I can check your code)
D. A screenshot o f your program output screen

Problem 6

Write a machine-language program t o add the three numbers 6,-7 and 4 and output the sum o n the output device. Note-the inputs can be hard coded in data storage at the end of your code. The accumulator holds 16 bits so use 16 bit Two's Complement for the - 7 and do not use the subtract instruction. Write it in a format suitable for the loader and execute it on the PEP/8 simulator. You may only use instructions in Fig 4.6. You shall submit:

A. A written algorithm
B. Your commented program similar t o the Machine Language ( h e x ) of Fig 4 . 3 5
C. The hexadecimal program suitable for the Pep/8 loader. (Cut & paste the text into your document s o I can check your code)
D. A screenshot of your program output screen
E. Explain the range of numbers that this will work correctly.

Reference no: EM131847212

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