fldcw

Load Control Word

FLDCW m2byte

Loads FPU control word from memory.

Details

The Load Control Word instruction loads FPU control word from memory.

Pseudocode Operation

// Loads FPU control word from memory

Example

FLDCW m2byte

Encoding

Binary Layout
D9
+0
ModRM
+1
 
Format Legacy
Opcode D9 /5
Extension x87 FPU

Operands

  • src
    Memory