fstp

Store Floating Point Value and Pop

FSTP m32fp/m64fp/m80fp

Copies ST(0) to destination and pops the register stack.

Details

The Store Floating Point Value and Pop instruction copies ST(0) to destination and pops the register stack.

Pseudocode Operation

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

Example

FSTP m32fp/m64fp/m80fp

Encoding

Binary Layout
D9
+0
ModRM
+1
 
Format Legacy
Opcode D9 /3
Extension x87 FPU

Operands

  • dest
    Memory