fst

Store Floating Point Value

FST m32fp/m64fp

Copies the value in ST(0) to memory or another register.

Details

The Store Floating Point Value instruction copies the value in ST(0) to memory or another register.

Pseudocode Operation

SRC <- ST(0)  // FSTP also pops stack

Example

FST m32fp/m64fp

Encoding

Binary Layout
D9
+0
ModRM
+1
 
Format Legacy
Opcode D9 /2
Extension x87 FPU

Operands

  • dest
    Memory