fmsub.d

Floating-Point Multiply-Subtract Double-Precision

The fmsub.d instruction multiplies the values in fs1 and fs2, subtracts the value in fs3, and writes the final result to fd.

Assembly format

fmsub.d fd, fs1, fs2, fs3, rm

Decode Variables

Bits<5> fs3 = $encoding[31:27];
Bits<5> fs2 = $encoding[24:20];
Bits<5> fs1 = $encoding[19:15];
Bits<3> rm = $encoding[14:12];
Bits<5> fd = $encoding[11:7];

Execution

Encoding

svg

Defining extension

(D ࣷ Zdinx)

Access

M

Always

Containing profiles

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

  • Optional: None