fsgnjn.d

Floating-Point Sign-Inject Negate Double-Precision

The fsgnjn.d instruction produces a result that takes all bits except the sign bit from fs1. The result’s sign bit is opposite of fs2’s sign bit, and the result is written to the destination register `fd. Sign-injection instructions do not set floating-point exception flags, nor do they canonicalize NaNs.

Assembly format

fsgnjn.d fd, fs1, fs2

Decode Variables

Bits<5> fs2 = $encoding[24:20];
Bits<5> fs1 = $encoding[19:15];
Bits<5> fd = $encoding[11:7];

Execution

Encoding

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Defining extension

(D ࣷ Zdinx)

Access

M

Always

Containing profiles

  • Mandatory: RVA20S64, RVA20U64, RVA22S64, RVA22U64, RVA23S64, RVA23U64, RVB23S64, RVB23U64

  • Optional: None