FCVT.H.W

Convert Word to Half

FCVT.H.W rd, rs1

Converts a 32-bit signed integer to a 16-bit floating-point number.

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] = i32_to_f16(R[rs1]);

Example

FCVT.H.W t0, a0

Encoding

Binary Layout
1101000
31:25
00010
24:20
rs1
19:15
rm
rd
14:10
1010011
9:3
 
Format I-Type (Float)
Opcode 0x53
Extension Zfh

Operands

  • rd
    Dest (Half)
  • rs1
    Src (Int)