FCVT.W.S

Float Convert to Word (Single)

FCVT.W.S rd, rs1

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

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

R[rd] = sext(f32_to_i32(F[rs1]));

Example

FCVT.W.S x10, f1

Encoding

Binary Layout
110000000000
31:20
rs1
19:15
rm
14:12
rd
11:7
1010011
6:0
 
Format I-Type (Float)
Opcode 0xC0000053
Extension F

Operands

  • rd
    Dest (Integer)
  • rs1
    Source (Float)