fpatan

Partial Arctangent

FPATAN

Computes arctan(ST(1)/ST(0)).

Details

The Partial Arctangent instruction computes arctan(ST(1)/ST(0)).

Pseudocode Operation

// Computes arctan(ST(1)/ST(0))

Example

FPATAN

Encoding

Binary Layout
D9
+0
F3
+1
 
Format Legacy
Opcode D9 F3
Extension x87 FPU

Operands