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VQDMULL (by vector or by scalar)
Vector Saturating Doubling Multiply Long.
Syntax
VQDMULL
{
}.cond
datatype
, Qd
,
Dn
Dm
VQDMULL
{
}.cond
datatype
, Qd
,
Dn
[Dm
]
x
where:
cond
is an optional condition code.
datatype
must be either
S16
orS32
.Qd
,Dn
are the destination vector and the first operand vector.
Dm
is the vector holding the second operand, for a by vector operation.
Dm
[x
]is the scalar holding the second operand, for a by scalar operation.
Operation
VQDMULL
multiplies corresponding elements in two vectors, doubles the
results and places the results in the destination register.
The second operand can be a scalar instead of a vector.
If any of the results overflow, they are saturated. The sticky QC flag (FPSCR bit[27]) is set if saturation occurs.