addi

Add immediate

Adds an immediate value to the value in xs1, and store the result in xd

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

Assembly format

addi xd, xs1, imm

Decode Variables

signed Bits<12> imm = sext($encoding[31:20], 12);
Bits<5> xs1 = $encoding[19:15];
Bits<5> xd = $encoding[11:7];

Execution

X[xd] = X[xs1] + $signed(imm);

Encoding

svg

Defining extension

I

Access

M

Always

Containing profiles

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

  • Optional: None