CSCI 223 Quiz IEEE754 Flashcards
1
Q
single precision
A
32 bit - float
2
Q
double precision
A
64 bit - double
3
Q
IEEE 754 conversion formula
A
(-1)^s (1.frac) 2^(exp-bias)
4
Q
bias
A
2^(k-1) - 1 where k = # exponent bits
5
Q
sign bit in single & double precision
A
MSB; 1 bit allocated
6
Q
exp in single precision
A
8 bits
7
Q
exp in double precision
A
11 bits
8
Q
frac in single precision
A
23 bits
9
Q
frac in double precision
A
52 bits
10
Q
can only exactly represent numbers of the form
A
x * 2^k
11
Q
bias for single precision
A
127
12
Q
bias for double precision
A
1023
13
Q
for frac, you fill in from the ? to ?
A
left to right; remaining spots to the right filled with zeroes
