1.
Temperature (in either degrees C or F) of a physical process.
Exercises 14.10 Practice Problems
In questions 1-6, indicate the most efficient integer datatype to store the following variables.
2.
A number corresponding to the current day of the week.
3.
A number corresponding to the current day in the year.
4.
A number corresponding to the current month in the year.
5.
An address capable of addressing 64k of memory.
6.
The age of a person in years.
In questions 7-13, calculate the result of the following operations.
7.
unsigned char a = 0x05 + 0xF3;
8.
unsigned char a = 38 - 14;
9.
unsigned char a = 52 - 100;
10.
unsigned char a = 5 * 10;
11.
unsigned char a = (25 * 10) / 2;
12.
unsigned char a = (25 / 2) * 10;
13.
unsigned char a = 36 % 8;
In questions 14-16, calculate the value of
a after the following operations.
14.
a = 0x37 & 0xCA;
15.
a = 0x37 | 0xCA;
16.
a = 0x37 ^ 0xCA;
17.
To selectively clear certain bits, which operator should be used?
18.
To selectively set certain bits, which operator should be used?
In questions 19-22, calculate the result of the following operations.
19.
(-5 > 0) || (3 <= 8)
20.
(1 >= 2) && (5 >= 0)
21.
(14 != 38) && (20 >= -10)
22.
(0 == 3) || !(5 != 8)
In questions 23-27, calculate the final value of each variable after the compound operation has been executed.
23.
unsigned char a = 38;
a /= 9;
24.
char n = -9;
n++;
25.
unsigned char j = 12;
j %= 7;
26.
unsigned char x = 0xAC;
x ^= 0xE9;
27.
unsigned char num = 22;
num &= 199;
In questions 28-30, determine the final value of the variable
x after the loop has been executed (assume in each question that the variable x can be accessed immediately after the loop has finished executing).
28.
for (unsigned char x = 0; x > 6; x++) {
x += 10;
}
29.
unsigned int x = 1;
while (x <= 5) {
x *= 2;
}
30.
unsigned int x = 0;
do {
x++;
} while (x <= 20);
