Worksheets9618 15.1 RISC/CISC and Assembly
Total questions: 11
Worksheet time: 10mins
Several CISC instructions may be equivalent to a single RISC instruction
TRUE
FALSE
CISC aims to use as few lines of assembly code as possible, even if more clock cycles are needed as a result.
TRUE
FALSE
RISC aims to improve processing speed by simplifying instructions so that one line takes one clock cycle.
TRUE
FALSE
RISC code may have more lines of code than the CISC equivalent
TRUE
FALSE
Pipelining means...
The fetch-decode-execute cycle runs more efficiently
A full fetch-decode-execute cycle must complete before starting the next
The next instruction is fetched while the previous instruction is still decoding
CISC processors can run more efficiently
RISC processors can run more efficiently
The instruction LDI loads a value into ACC using indirect addressing. Based on the contents of the registers and memory, what value will be loaded into the ACC as a result of the instruction LDI 45?
(a)
The instruction LDX uses indexed addressing to load a value into the ACC. Based on the content of the registers and memory, write an instruction that would load the number 52 into the ACC. You can only use LDX.
(a)
There are (a) stages of processing an instruction. It takes one instruction five clock cycles to pass through all stages. Without pipelining, it would take (b) cycles to execute four instructions. With pipelining, this can be improved to just (c) cycles. Pipelining is normally only available on (d) processors.
Draw logarithmic time complexity
Match the following OOP terminology to the correct example
ClassA has an attribute of type ClassB.
ClassA receives all attributes and methods of ClassB.
Polymorphism
MethodA has the ability to behave differently in different situations.
Encapsulation
Access to attributes and methods can be limited and controlled by the programmer.
Match the following declarative programming vocabulary to the code examples.
Fact
A concrete piece of information e.g. likes(adam, apples).
Rule
A clause containing at least one variable e.g. likes(adam, Food) :- isfruit(Food).
Query
A statement that returns either true or false, or the value of a variable e.g. likes(adam, Food).
Knowledge Base
A collection of clauses
Clause
A fact or a rule
