PPT-Lecture 5 P ointers 1. Variable, memory location, address, value

Concepts of pointers Examples of pointer usage Variable name memory location value Every variable in C has a name and a value associated with it When a variable is declared a specific . Computer memory is the storage space in computer where data is to be processed and instructions required for processing are stored. .. The memory is divided into large number of small parts. Each part is called cell. Each location or cell has a unique address, which varies from zero to memory size minus one. B. Wilkinson s. lides3.ppt Modification . date: . March 16, 2015. 1. Addressing Modes. The . methods . used . in machine instructions to . identify the location of an operand. .. 2. General . details. Today’s topic. Cache performance assessment. Associative caches. Reminder. HW8 due next Friday 11/21/2014. HW9 . due Wednesday 12/03/2014. Grades so far. http://eecs.wsu.edu/~hassan/cs260/hws/CS260_Grades.pdf. you learned how to declare pointer . variables. how . to store . the address . of a variable into a pointer variable of the same type as the . variable. how to manipulate . data using . pointers. you . CSE 2451. Rong. Shi. Language comparison. C has pointers. Java has references. C++ has pointers . and . references. Pointers. Values of variables are stored in memory, at a particular location. A location is identified and referenced with an address. Khaled A. Al-Utaibi. alutaibi@uoh.edu.sa. Agenda. The 8086 Registers. The 8086 Memory Addressing. The 8086 Memory Organization. Data Registers. : . The data group consists of the . AX. , . BX. , . . www.cs.berkeley.edu/~ddgarcia. inst.eecs.berkeley.edu. /~cs61c. . CS61C : Machine Structures. . Lecture 3 – Introduction to . the C Programming Language (. pt. 1) . . 2014-. 01-. 27. Leap Motion . you learned how to declare pointer . variables. how . to store . the address . of a variable into a pointer variable of the same type as the . variable. how to manipulate . data using . pointers. you . 2. C Data Types. structured. array struct union class. . address. pointer reference. simple. integral . enum. char short int long bool. floating. float double long double. Review. Binary. Transistors / gates. Circuits. Architecture. Assembly language. High level languages. Outline. Assembly in action. ARC Registers. ARC has 32 general purpose registers from r0 to r32. However, r0 is set to value 0 and cannot be changed.. However, smallest addressable unit is a Byte (8 bits). . bit 7 6 5 4 3 2 1 0. . . msb. . lsb. Most computers permit access of memory through words (16 bits, 32 bits or 64 bits). Number Systems – Decimal. The Decimal system is the one we've grown up with, where every number is a sequence of digits of which there are only 10 values.. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. Any number can be decomposed as a weighted sum of powers of 10.. Outline. In this lesson, we will:. Revisit . static memory allocation (local variables). Introduce dynamic memory allocation. Introduce the . new. and . delete. operators. Static memory allocation. Lecture 21. April . 11. th. , . 2012. Distributed Shared Memory (. con’t. ). Synchronization. Prof John D. Kubiatowicz. http://www.cs.berkeley.edu/~kubitron/cs252. Recall: Sequential Consistency of Directory Protocols.