Tutorial Week 9 Task 1. Assume you are dealing with a 32 bit microprocessor that accesses memory in words (i.e. 32 bits) at a time, while memory is addressed bytewise. You should store strings in memory in an aligned way. You should use as little memory as possibel without becoming unaligned. • Sketch the memory […]
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courseScraper In [1]: import urllib2 #specify the url wiki = “http://guide.berkeley.edu/courses/compsci/” page = urllib2.urlopen(wiki) from bs4 import BeautifulSoup soup = BeautifulSoup(page, “lxml”) In [34]: res = [] for t in soup.find_all(‘h3’, class_=”courseblocktitle”): alls = t.find_all() res.append(‘ ‘.join(x.string for x in alls).replace(u’\xa0’, ‘ ‘)) # alls = soup.find_all(‘h3’, class_=”courseblocktitle”)[0].find_all() # ‘ ‘.join(x.string for x in alls).replace(u’\xa0’, ‘ ‘)
CS232 Section 6: Solutions Problems 1. The following code is run on a 5-stage MIPS pipeline with full forwarding. # Original code lw $t0, 0($a0) addi $t0, $t0, 1 sw $t0, 0($a0) addi $a0, $a0, 4 # Solution to 1(b) lw $t0, 0($a0) addi $a0, $a0, 4 addi $t0, $t0, 1 sw $t0, -4($a0) (a)
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Lab Basic Blocks J. Nelson Amaral A Basic Block Only the first instrucJon basic block can be the target of a branch. ExecuJon can only start here TARGET: If any instrucJon of the basic block is executed, then all of them must be executed. andi $t2, $t0, 0x1 add $t2, $t2, $t4 or $t2, $t3,
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Compilers and computer architecture: Realistic code generation Martin Berger November 2015 Recall the function of compilers Recall the structure of compilers Source program Lexical analysis Intermediate code generation Optimisation Syntax analysis Semantic analysis, e.g. type checking Code generation Translated program Introduction We have ’finished’ the compilers course, in the sense that we looked at all
Compilers and computer architecture: The MIPS processor Martin Berger November 2015 Recall the function of compilers Introduction In previous lectures, we focussed on generating code for simple architectures like the stack machine, or accumulator machines. Now we want to do something more interesting, generating code for a real CPU. Introduction In previous lectures, we focussed
CSE 220: Systems Fundamentals I Homework #1 Fall 2016 Assignment Due: Sept. 23, 2016 by 11:59 pm via Sparky PLEASE READ THE WHOLE DOCUMENT BEFORE STARTING! Introduction The goal of this homework is to become familiar with basic MIPS instructions, syscalls, loops, conditional logic and memory representations. In the first part of the assignment you
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Compilers and computer architecture: A realistic compiler to MIPS Martin Berger November 2015 Recall the function of compilers Recall the structure of compilers Source program Lexical analysis Intermediate code generation Optimisation Syntax analysis Semantic analysis, e.g. type checking Code generation Translated program Introduction Now we look at more realistic code generation. In the previous two
Compilers and computer architecture: A realistic compiler to MIPS Martin Berger November 2015 Recall the function of compilers Recall the structure of compilers Source program Lexical analysis Intermediate code generation Optimisation Syntax analysis Semantic analysis, e.g. type checking Code generation Translated program Introduction Now we look at more realistic code generation. In the previous two
Tutorial Week 10 (Solutions) Task 1. Solutions are tested in MARS 4.5. Solution for task 1, part 2: .data # Data to encrypt data: .ascii “this is 16 bytes” # Encryption key key: .ascii “the key is here!” # Destination for encrypted data dest: .space 16 .text .globl main main: la $a0, data # Store
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