Consider the following segment of code:procedure Mvar x: integer;procedure A (c: integer)var a, b: integer;procedure Bvar b, c, d: integer;begin {B}….a := c – d;….end B;begin {A}….x := b + c;….B()….end A;begin {M}….A(3)….end M;Assuming the definition of M is at static nesting level 0. Draw the runtime stack that will be ineffect at the execution of “a := c – d;”. Show the static and dynamic links, and the currentpositions of the EP and SP pointers.What is the static distance to x’s environment of definition and the offset within the environmentwhen “a := c – d;” is executed?

Question

Consider the following segment of code:
procedure M
var x: integer;
procedure A (c: integer)
var a, b: integer;
procedure B
var b, c, d: integer;
begin {B}
….
a := c – d;
….
end B;
begin {A}
….
x := b + c;
….
B()
….
end A;
begin {M}
….
A(3)
….
end M;
Assuming the definition of M is at static nesting level 0. Draw the runtime stack that will be in
effect at the execution of “a := c – d;”. Show the static and dynamic links, and the current
positions of the EP and SP pointers.
What is the static distance to x’s environment of definition and the offset within the environment
when “a := c – d;” is executed?

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