Answer:
- What is the sign bit of 1.0? 0 (for positive)
- What is the mantissa of 1.0? 000 0000 0000 0000 0000 0000
- What is the actual exponent of 1.0? 0
- What is the biased exponent of 1.0? 12710 = 0111 11112
Fitting each of these pieces into their proper fields gives us the full 32 bits:
If the bit pattern is written in hexadecimal it is 0x3F800000.
To check that this is correct,
use SPIM.
Write a program that declares a floating point 1.0,
then run SPIM.
## Program to represent 1.0
.text
.globl main
main:
.data
val: .float 1.0
## End of file
When you load this program in SPIM, where will the 1.0 be?