CS Sample MidTerm Examination Student Name: Signature: CS COMP-273: Sample MidTerm Examination Question 1 (Digital Circuits). [30%] Your task is to design a digital circuit which implements a version of a shift logical left or Student Name: Signature: a shift logical right. Let A2,A1,A0 represent the 3 bits of a 3-bit register, where A2 is […]
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Instruction Representation 2 Review °MIPS defines instructions to be same size as data (one word) so that they can use the same memory (can use lw and sw). °Machine Language Instruction: 32 bits representing a single instruction R I opcode rs rt rd shamt funct opcode rs rt immediate °Computer actually stores programs as a
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Input/Output: Polling and Interrupts Outline °I/O Background °Polling °Interrupts Anatomy: 5 components of any Computer Computer Keyboard, Mouse Disk (where programs, data live when not running) Display, Printer Processor (active) Control (“brain”) Datapath (“brawn”) Memory (passive) (where programs, data live when running) Devices Input Output Motivation for Input/Output °I/O is how humans interact with computers
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5 – sequential logic 1 Jan. 25, 2016 Sequential Circuits All of the circuits that I have discussed up to now are combinational digital circuits. For these circuits, each output is a logical combination of the inputs. We have seen that these circuits can do arithmetic and other operations. But these circuits are not powerful
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C/Assembler Arithmetic and Memory Access Overview °C operators, operands °Variables in Assembly: Registers ° Addition and Subtraction in Assembly °Memory Access in Assembly Review C Operators/Operands °Operators:+,-,*, /,%(mod); •7/4==1, 7%4==3 ° Operands: • Variables: fahr, celsius • Constants: 0, 1000, -17, 15.4 °Assignment Statement: Variable = expression • Examples: celsius = 5*(fahr-32)/9; a = b+c+d-e;
Virtual Memory Review (1/2) °Caches are NOT mandatory: • Processor performs arithmetic • Memory stores data • Caches simply make things go faster °Each level of memory hierarchy is just a subset of next higher level °Caches speed up due to temporal locality: store data used recently °Block size > 1 word speeds up due
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Starting a Program IEEE 754 Floating Point Review °Summary (single precision): 3130 2322 0 1 bit 8 bits 23 bits °(-1)S x (1 + Significand) x 2(Exponent-127) • Double precision identical, except with exponent bias of 1023 °Special reserved exponents for 0, infinity, NotANumber (NaN), and denorms (small numbers not in normalized) °Multiply/Divide on MIPS
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Logical and Shift Operations Overview °Logical Instructions ° Shifts Bitwise Operations (1/2) °Up until now, we’ve done arithmetic (add, sub,addi ), memory access (lw and sw), and branches and jumps. °All of these instructions view contents of register as a single quantity (such as a signed or unsigned integer) °New Perspective: View contents of register
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CSE 141L: Introduction to Computer Architecture Lab Microprocessor Architecture & ISAs Pat Pannuto, UC San SE 141L CC BY-NC-ND Pat Pannuto – Content derived from materials from , , , and others Copyright By PowCoder代写 加微信 powcoder Logistics Update: Waitlists • This is a big, hard project class – Younowhavethefullscopeofthebig,hardproject If you are considering dropping
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Computer Science 230 Computer Architecture and Assembly Language Fall 2020 Assignment 3 Due: Monday, November 23th, 11:55 pm by conneX submission (Late submissions not accepted) Programming environment For this assignment you must ensure your work executes correctly on the MIPS Assembler and Runtime Simulator (MARS) as was installed during Assignment #0. Assignment submissions prepared with