Yes. The data is copied to a new location, but the old location is not changed. However, since the stack pointer is moved, "logically" the data is no longer on the stack.
stack is often used to hold temporary values
when most registers are already in use.
An example of this is how
a compiler translates an arithmetic expression
into machine codes that uses a stack.
the arithmetic expression is
ab - 12a + 18b - 7.
Say that only
$t1 are available.
Perhaps only two registers are available because the
compiler has already output code that uses all the others.
Before SPIM starts running a program it
initializes the stack pointer
On a computer with a full operating system,
the stack pointer is initialized by
the operating system before control is
passed to a user program.
Here is the start of the program:
Fill in the blanks.