fmax.s

No synopsis available.

This instruction is defined by:

  • F, version >= 0

This instruction is included in the following profiles:

  • RVA20U64 (Mandatory)

  • RVA22U64 (Mandatory)

  • RVI20U32 (Optional)

  • RVI20U64 (Optional)

Encoding

svg

Assembly format

fmax.s fd, fs1, fs2

Synopsis

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

No description available.

Access

M HS U VS VU

Always

Always

Always

Always

Always

Decode Variables

Bits<5> fs2 = $encoding[24:20];
Bits<5> fs1 = $encoding[19:15];
Bits<5> fd = $encoding[11:7];

Execution

  • IDL

  • Sail

{
  let rs1_val_S = F_or_X_S(rs1);
  let rs2_val_S = F_or_X_S(rs2);

  let (fflags, rd_val) : (bits_fflags, bool) =
      riscv_f32Le (rs1_val_S, rs2_val_S);

  accrue_fflags(fflags);
  X(rd) = zero_extend(bool_to_bits(rd_val));
  RETIRE_SUCCESS
}