x = (4*x + y *z);
if (a > b)
x = 2 * y;
else
x = y / 2;
for (i = 100; i > 0; --i)
a = a + 5;
Use the loop instruction to construct the loop.
a = 25;
while (a > 0) {
--a;
y = y + a;
}