sequential (4) read and write

.

.
while (a machine is running)
{
socket teller machine() //
{
Dynamic m = (how much money);
if (input == m){
teller machine output (m);
}
}
}


There're 2 status of a registers. .
One is the status of read-only. .
One is the status of (read and write). .

Me: Hackers change a (read and write) status into a (read-only) status .
.
1) A teller machine check how much money we input first.
2) And then, the machine output an amout of money which we input.
.
1) Dynamic m = (How much money) is a dynamic memory.
2) Hacker change the Dynamic m into a Static m.
3) As a result, no matter how much money we request, the output is still 100 dollars.

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