FCVT.H.S

Convert Single to Half

FCVT.H.S rd, rs1

Converts a 32-bit single-precision float to a 16-bit half-precision float.

Details

Converts between floating-point types or between floating-point and integer. Result is rounded according to the dynamic rounding mode. Invalid conversions produce the IEEE default NaN or the appropriate integer saturation value.

Pseudocode Operation

F[rd] = f32_to_f16(F[rs1]);

Example

FCVT.H.S f0, f1

Encoding

Binary Layout
010001000000
31:20
rs1
19:15
rm
14:12
rd
11:7
1010011
6:0
 
Format I-Type (Float)
Opcode 0x44000053
Extension Zfh

Operands

  • rd
    Dest (Half)
  • rs1
    Source (Single)