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ARM Compiler armasm User Guide : FNEG (scalar)

FNEG (scalar)

Floating-point negate.

Syntax

FNEG Sd, Sn ; Single-precision

FNEG Dd, Dn ; Double-precision

Where:

Sd

Is the 32-bit name of the SIMD and FP destination register.

Sn

Is the 32-bit name of the SIMD and FP source register.

Dd

Is the 64-bit name of the SIMD and FP destination register.

Dn

Is the 64-bit name of the SIMD and FP source register.

Operation

Vd = -Vn, where V is either D or S.

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