Question

Fill in the following table to show how the given integers are represented, assuming 16 bits are used to store values and the machine uses 2’s complement notation. (This is not necessarily MARIE.) Give values in the last two columns in hexadecimal as they would appear memory assuming the byte at address a is on the left and the byte at the address a+1 is on the right.

				2-Byte Big	2-Byte Little
	Integer	Binary	Hex	Endian (hex)	Endian (hex)
Example	-540	1111 1101 1110 0100	FDE4	FD E4	E4 FD
a)	12
b)	-12
c)	128
d)	-128
e)	65,000
f)	-65,000
				byte a | byte a+1	byte a | byte a+1

Answer 1

Solution:

	Integer	Binary	Hex	2-Byte Big Endian (hex)	2-Byte Little Endian (hex)
(a)	-540	1111 1101 1110 0100	FDE4	FD E4	E4 FD
(b)	12	0000000000001100	000C	00 0C	0C 00
(c)	-12	1111111111110100	FFF4	FF F4	F4 FF
(d)	128	0000000010000000	0080	00 80	80 00
(e)	-128	1111111110000000	FF80	FF 80	80 FF
(f)	65,000	1111110111101000	FDE8	FD E8	E8 FD
(g)	-65,000	0000001000011000	0218	02 18	18 02

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