sparc-architecture-2011-1728132

4.1.2.1 Unsigned Integer Byte, Halfword, and Word
FIGURE 4-4 illustrates the unsigned integer byte data format.
UB
7 0
UH
15 0
UW
31 0
FIGURE 4-4
Unsigned Integer Byte, Halfword, and Word Data Formats
4.1.2.2 Unsigned Integer Doubleword (64 bits)
FIGURE 4-5 illustrates both components (UD-0 and UD-1) of the unsigned integer double data format.
UD–0
unsigned_int_doubleword{63:32}
31 0
UD–1
unsigned_int_doubleword{31:0}
31 0
FIGURE 4-5
Unsigned Integer Double Data Format
4.1.2.3 Unsigned Extended Integer (64 bits)
FIGURE 4-6 illustrates the unsigned extended integer (UX) data format.
UX
unsigned_int_extended
63 0
FIGURE 4-6
Unsigned Extended Integer Data Format
4.1.3 Tagged Word (32 bits)
FIGURE 4-7 illustrates the tagged word data format.
TW
tag
31 2 1 0
FIGURE 4-7
Tagged Word Data Format
26 Oracle SPARC Architecture 2011 • Draft D0.9.5d, 18 Jul 2012