1
GATE CSE 2004
MCQ (Single Correct Answer)
+1
-0.3
Consider the grammar rule $$E \to {E_1} - {E_2}$$ for arithmetic expressions. The code generated is targeted to a CPU having a single user register. The subtraction operation requires the first operand to be in the register. If E1 and E2 do not have any common sub-expression, in order to get the shortest possible code.
A
E1 should be evaluated first
B
E2 should be evaluated first
C
Evaluation of E1 and E2 should necessarily be interleaved
D
Order to evaluation of E1 and E2 is of no consequence
2
GATE CSE 1990
MCQ (Single Correct Answer)
+1
-0.3

Match the followings:

Group-I

(a) Pointer data type
(b) Activation Record
(c) Repeat -Until
(d) Coercion

Group-II

(p) Type Conversion
(q) Dynamic Data Structure
(r) Recursion
(s) Nondeterministic loop
A
a - p, b - r, c - s, d - q
B
a - q, b - r, c - s, d - p
C
a - q, b - s, c - r, d - p
D
a - r, b - q, c - s, d - p
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