
Question P
Show the stack with all activation record instances, including static and
dynamic chains, when execution reaches position 1 in the following skeletal
program. Assume bigsub is at level 1.
function bigsub() {
function a(flag) {
function b() {
... a(false);
...
} // end of b
...
if (flag)
b();
else c();
...
} // end of a
function c() {
function d() {
... <------------------------1
} // end of d
...
d();
...
} // end of c
...
a(true);
...
} // end of bigsub
The calling sequence for this program for execution to reach d is
bigsub calls a
a calls b
b calls a
a calls c
c calls d .
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