remu

Unsigned remainder

This instruction is defined by:

Encoding

Synopsis

Calculate the remainder of unsigned division of rs1 by rs2, and store the result in rd.

Access

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 src1 = X[rs1];
XReg src2 = X[rs2];
if (src2 == 0) {
  X[rd] = src1;
} else {
  X[rd] = src1 % src2;
}

if (implemented?(ExtensionName::M) && (CSR[misa].M == 1'b0)) {
  raise(ExceptionCode::IllegalInstruction, mode(), $encoding);
}
XReg src1 = X[rs1];
XReg src2 = X[rs2];
if (src2 == 0) {
  X[rd] = src1;
} else {
  X[rd] = src1 % src2;
}