require_extension('F');
require_extension(EXT_ZFA);
require_fp;
{
  const uint32_t bits[32] = {
    [0b00000] = 0xbf800000,  /* -1.0 */
    [0b00001] = 0x00800000,  /* minimum positive normal */
    [0b00010] = 0x37800000,  /* 1.0 * 2^-16 */
    [0b00011] = 0x38000000,  /* 1.0 * 2^-15 */
    [0b00100] = 0x3b800000,  /* 1.0 * 2^-8  */
    [0b00101] = 0x3c000000,  /* 1.0 * 2^-7  */
    [0b00110] = 0x3d800000,  /* 1.0 * 2^-4  */
    [0b00111] = 0x3e000000,  /* 1.0 * 2^-3  */
    [0b01000] = 0x3e800000,  /* 0.25 */
    [0b01001] = 0x3ea00000,  /* 0.3125 */
    [0b01010] = 0x3ec00000,  /* 0.375 */
    [0b01011] = 0x3ee00000,  /* 0.4375 */
    [0b01100] = 0x3f000000,  /* 0.5 */
    [0b01101] = 0x3f200000,  /* 0.625 */
    [0b01110] = 0x3f400000,  /* 0.75 */
    [0b01111] = 0x3f600000,  /* 0.875 */
    [0b10000] = 0x3f800000,  /* 1.0 */
    [0b10001] = 0x3fa00000,  /* 1.25 */
    [0b10010] = 0x3fc00000,  /* 1.5 */
    [0b10011] = 0x3fe00000,  /* 1.75 */
    [0b10100] = 0x40000000,  /* 2.0 */
    [0b10101] = 0x40200000,  /* 2.5 */
    [0b10110] = 0x40400000,  /* 3 */
    [0b10111] = 0x40800000,  /* 4 */
    [0b11000] = 0x41000000,  /* 8 */
    [0b11001] = 0x41800000,  /* 16 */
    [0b11010] = 0x43000000,  /* 2^7 */
    [0b11011] = 0x43800000,  /* 2^8 */
    [0b11100] = 0x47000000,  /* 2^15 */
    [0b11101] = 0x47800000,  /* 2^16 */
    [0b11110] = 0x7f800000,  /* +inf */
    [0b11111] = defaultNaNF32UI
  };
  WRITE_FRD_F(f32(bits[insn.rs1()]));
}