Sun Microsystems UltraSPARC-I User Manual page 238

Figure 13-15 shows the format of rs1.
Z integer
63 55
Figure 13-15 Three Dimensional Array Fixed-Point Address Format
The integer parts of X, Y, and Z are converted to the following blocked-address
formats:
Z
20
+ 2 isrc2
Figure 13-16 Three Dimensional Array Blocked-Address Format (Array8)
Z
21 18
+ 2 isrc2 + 2 isrc2
Figure 13-17 Three Dimensional Array Blocked-Address Format (Array16)
Z
22 19
+ 2 isrc2 + 2 isrc2
Figure 13-18 Three Dimensional Array Blocked-Address Format (Array32)
The bits above Z upper are set to zero. The number of zeros in the least signifi-
cant bits is determined by the element size. An element size of eight bits has no
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zeros, an element size of 16-bits has one zero, and an element size of 32-bits has
Z fraction Y integer
44 43
54
Upper
Y
X
17
17
+ 2 isrc2 + isrc2
Upper
Y X
18 18
+ isrc2
Upper
Y X
19 19
+ isrc2
13. UltraSPARC Extended Instructions
Y fraction
33 32 22 21
Middle
Y
Z X
17 13 9
Middle
Y
Z X Z
14 10 6
Middle
Y
Z X
Z
15 11 7
X integer X fraction
11 10
Lower
Y
Z X
5 4 2
Lower
0
Y X
0
5 3 1
Lower
00
Y X
0
6 4 2
0
0