FIADD
Usage: FADD dest,src Modifies flags: None
Adds the 'dest' and 'src' operands and stores the sum in the 'dest' location. The 'dest' operand is always an FPU register; the 'src' operand can be a register or a memory location. 'Src' operands in memory can be in single-precision or double-precision floating-point format or in word or doubleword integer format.
Floating-Point/Integer Addition
FIADD mem16 ; DE /0 [8086,FPU]
FIADD mem32 ; DA /0 [8086,FPU]
FIADD adds the 16-bit or 32-bit integer stored in the given memory location to ST0, storing the result in ST0.
C1 Set to 0 if stack underflow occurred. C0, C2, C3 Undefined.
EXAMPLE:
fiadd
fiadd st0