Nintendo Ultra64 Programmer's Manual page 231

SWV
31 26
SWC2
1 1 1 0 1 0
6
Format:
swv vt[element], offset(base)
Description:
This instruction gathers a diagonal vector of shorts from a group of eight VU registers, writing to
an aligned 128 bit memory word. The VU register number of each slice is computed as
(VT & 0x18) | ((Slice + (Element >> 1)) & 0x7) , which is to say that
8 register group. SWV performs a circular shift of the 8 shorts by (element >> 1), which is equivalent
to:
dest_short[ Slice ] = source_short[((Slice + (Element >> 1)) & 0x7)]
The effective address is computed by adding the
GPR).
Note:
ordinal element count, as in VU computational instructions.
Operation:
See "Transpose" on page 54.
Exceptions:
None
Revision 1.0
Store Wrapped
from Vector Register
25 21 20 16
base vt
5 5
element
The element specifier
15 11 10
SWV element
0 0 1 1 1
5 4
offset to the contents of the
is the byte element of the vector register, not the
SWV
7 6 0
offset
7
vt
specifies the beginning of an
base register (a SU
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