ex6_5.ibm

汇编编程艺术

#repetitions 1000000
#unravel 256
#code ("WITH EXCHANGE")
%init
mov ax, 346
mov bx, 450
%do
xchg ax, bx
#endcode

#code ("WITHOUT EXCHANGE")
%init
mov ax, 346
mov bx, 450
%do
mov dx, ax
mov ax, bx
mov bx, dx
#endcode
#end