c.add

Add

Add the value in xs2 to xd, and store the result in xd. C.ADD expands into add xd, xd, xs2.

This instruction must have data-independent timing when extension Zkt is enabled.

Assembly format

c.add xd, xs2

Decode Variables

Bits<5> xs2 = $encoding[6:2];
Bits<5> xd = $encoding[11:7];

Execution

XReg t0 = X[xd];
XReg t1 = X[xs2];
X[xd] = t0 + t1;

Encoding

svg

Defining extension

Zca

Access

M

Always

Containing profiles

  • Mandatory: None

  • Optional: RVA20S64, RVA20U64, RVA22S64, RVA22U64, RVA23S64, RVA23U64, RVB23S64, RVB23U64, RVI20U32, RVI20U64