Yes. Adding more powerful instructions to the instruction set is a good decision because it provides a
higher performance. Instead of having multiple instructions that theoretically do the same thing and
allocates more memory,
-0x00: 0 7 F F
0000 0111 1111 1111
Opcode = 0001, which is for instruction SUB
Src1 = 111, which is address for register R7
Src2 = 111, which is address for register R7
Dst = 111, which is address for register
i) console print: the product is 665
ii) console print: the product is -665
iii) nothing printed, program runs into infinite while loop
iv) nothing printed, program runs into infinite while loop
iii and iv run into infinite
Example ( in pseudo java code)
/ this main function is in some other class.
Public static void main(String args) cfw_
object1 = new object();
Class Object cfw_
Public void read() cfw_
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University of Delaware
Computer and Information Science
CISC 260 Sample Final Exam
1. This is an open notes exam. You are not allowed to use any electronic
devices except standard calculators.
2. Check that you have all pages. There are
CISC 260 - Homework Assignment 6
A full running MIPS program which prints out d[4*j] is attached at the back of the assignment. The
specific code for the above C co
Pipeline: Cycle time determined by slower stage: 350ps
Non-pipelined: Cycle time determined by sum of all stages: 1250ps
LW instruction uses all 5 stages.
Pipelined processor takes 5 cycles at 300ps per cycle for latency of 1500ps.
CISC 260 Machine Organization and Assembly Language
Sample Midterm Exam
This is an open-note exam. You are allowed to use notes. You are NOT allowed to use
calculators or electronic devices of any kind.
1. [20 points] Data representations