Intel 64 and IA-32 Architectures Software Developers Manual Volume 1, Basic Architecture

4-4 Vol. 1
DATA TYPES
Figure 4-3. Numeric Data Types
0
0
022
0
Double Extended Precision
63
62
0
Word Signed Integer
0
Byte Signed Integer
7 6
Sign
Sign
Doubleword Signed Integer
15 14
Sign
31 30
Sign
Quadword Signed Integer
0
0
Word Unsigned Integer
0
Byte Unsigned Integer
7
Doubleword Unsigned Integer
15
31
Quadword Unsigned Integer
63
0
0
233031
51526263
64 63 62
79 78
Floating Point
Single Precision
Floating Point
Double Precision
Floating Point
Sign
Integer Bit
Sign
Sign