A4 (40 marks) Objectives: MIPS Flow Control Q1. Write a MIPS program that prompts the user for a hexadecimal digit and then displays the decimal equivalent multiplied by 2. For example, the program displays 10 for hex ‘5’, 20 for ‘A’, etc. If the user enters an invalid value, the program should display an error […]
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Computer Science 230 Computer Architecture and Assembly Language Fall 2020 Assignment 2 Due: Thursday, October 29th, 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
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Computer Science 230 Computer Architecture and Assembly Language Fall 2020 Assignment 2 Due: Thursday, October 29th, 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
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Floating Point Outline • Review from last time • Integer multiplication & division • FP add/sub • FP on MIPS • Special “numbers” • Rounding 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,
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6 – sequential logic 2 Jan. 27, 2016 Today I will finish off our discussion of registers, and then move on to discuss larger memories. T flip-flop (toggle) The circuit below on the left shows a D flip-flop, such that the data input D comes from the complement of the stored value Q. At every
Procedures Overview °C Functions °MIPS Instructions for Procedures °The Stack °Register Conventions °Another Example C functions main() { int i,j,k,m; i = mult(j,k); … m = mult(i,i); … } What information must ;compiler/programmer keep track of? /* really dumb mult function */ int mult (int mcand, int mlier){ int product; product = 0; while (mlier
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Instruction Representation Review (1/2) °Logical and Shift Instructions • Operate on bits individually, unlike arithmetic, which operate on entire word. • Use to isolate fields, either by masking or by shifting back and forth. • Use shift left logical, sll,for multiplication by powers of 2 • shift right arithmetic, sra, close but wrong for divide
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Decisions in C / Assembly Language Review (1/2) °In MIPS Assembly Language: • Registers replace C variables • One Instruction (simple operation) per line • Simpler is Better • Smaller is Faster ° Memory is byte-addressable, but lw and sw access one word at a time. ° A pointer (used by lw and sw) is
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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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