addw Add word This instruction is defined by: Encoding Synopsis Add the 32-bit values in rs1 to rs2, and store the sign-extended result in rd. Any overflow is thrown away. Access M HS U VS VU Always Always Always Always Always Decode Variables Bits<5> rs2 = $encoding[24:20]; Bits<5> rs1 = $encoding[19:15]; Bits<5> rd = $encoding[11:7]; Execution Pruned, XLEN == 64 Original XReg operand1 = sext(X[rs1], 31); XReg operand2 = sext(X[rs2], 31); X[rd] = sext(operand1 + operand2, 31); XReg operand1 = sext(X[rs1], 31); XReg operand2 = sext(X[rs2], 31); X[rd] = sext(operand1 + operand2, 31);