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VNEG (floating-point)
Floating-point negate.
Syntax
VNEG
{
}cond
.F32
, Sd
Sm
VNEG
{
}cond
.F64
, Dd
Dm
where:
cond
is an optional condition code.
Sd
,Sm
are the single-precision registers for the result and operand.
Dd
,Dm
are the double-precision registers for the result and operand.
Operation
The VNEG
instruction takes the
contents of Sm
or
,
changes the sign bit, and places the result in Dm
Sd
or
.
This gives the negation of the value.Dd
If the operand is a NaN, the sign bit is changed, but no exception is produced.
Floating-point exceptions
VNEG
instructions do not produce
any exceptions.