Listing 4, Adding Numbers Quickly
fld   [a1]      ; 1
fadd  [b1]      ; 1
fld   [c1]      ; 1
fadd  [d1]      ; 1
fld   [e1]      ; 1
fadd  [f1]      ; 1
fxch  st(2)      ; 0
fstp  [a1]      ; 2
fstp  [c1]      ; 2
fstp  [e1]      ; 2
