Page 341 - ARM 64 Bit Assembly Language
P. 341
Advanced SIMD instructions 331
Name Effect Description
st<n> tmp ← Xn Save multiple structures from all lanes
incr ← byteSize(T) of one or more registers.
for 0 ≤ x< nLanes(T) do
for V ∈<list> do
Mem[tmp]← V [x]
tmp ← tmp + incr
end for
end for
if #imm is present then
Xn ← Xn + imm
else
if Rm is specified then
Xn ← Xn + Xm
end if
end if
10.2.2.3 Examples
1 @ Load eight rgb pixel structures into
2 @ d0(red),d1(green),and d2(blue)
3 ld3 {v0.8b,v1.8b,v2.8b},[x0],#24 // load eight pixels
4
5 @ Load sixteen rgb pixel structures into
6 @ v0(red),v1(green),and v2(blue)
7 ld3 {v0.16b-v2.16b},[x0],#48 // load sixteen pixels
10.2.3 Load copies of a structure to all lanes
This instruction is used to load multiple copies of structured data across multiple registers:
ld<n>r Load Copies of Structured Data.
The data is copied to all lanes. This instruction is useful for initializing vectors for use in later
instructions.
10.2.3.1 Syntax
ld<n>r <list>,[Xn]
ld<n>r <list>,[Xn],Xm
ld<n>r <list>,[Xn],#imm
