sll

Shift left logical

This instruction is defined by:

Encoding

svg

Synopsis

Shift the value in xs1 left by the value in the lower 6 bits of xs2, and store the result in xd.

Access

M

HS

U

VS

VU

Always

Always

Always

Always

Always

Decode Variables

Bits<5> xs2 = $encoding[24:20];
Bits<5> xs1 = $encoding[19:15];
Bits<5> xd = $encoding[11:7];

Execution

  • Pruned, XLEN == 64

  • Original

X[xd] = X[xs1] << X[xs2][5:0];
if (%%LINK%func;xlen;xlen%%() == 64) {
  X[xd] = X[xs1] << X[xs2][5:0];
} else {
  X[xd] = X[xs1] << X[xs2][4:0];
}