code optimization program in c language

Ngày tải lên: 19/10/2014, 22:33

... execute machine instructions only. No matter in which language a program is written, it must be converted into machine instructions in the end. Since machine instructions are collections of 0s ... .SECTION indicates the section control instruction, PROG represents the section name (section can be named originally based on certain rules), CODE refers to the instruction code, and LOCATE=H'1000 ... the R1L, changing the CCR. Conditional branch instruction CMP.B #H'12,R0L Subtracts H'12 (18 in decimal notation) from the R0L, changing the CCR. Conditional branch instruction ...

Ngày tải lên: 29/09/2013, 11:20

... <iostream>4 5 using std::cout; 6 using std::endl;7 8 #include <iomanip> 9 using std::setw; 11 #include <cstdlib> // contains function prototype for rand 14 int main() { 16 int frequency1 = ... <ctime> ã Returns current time in seconds ã General shifting and scaling Number = shiftingValue + rand() % scalingFactor – shiftingValue = first number in desired range – scalingFactor ... each 2003 Prentice Hall, Inc. All rights reserved. 3 3.1 Introduction ã Divide and conquer – Construct a program from smaller pieces or components – Each piece more manageable than the original...

Ngày tải lên: 06/10/2013, 08:20

... Service-Oriented Architecture, 3e Beginning ASP.NET 3.5 Data Access, 2e Beginning C# 2008 Databases Beginning C# 2008 Pro LINQ: Language Integrated Query in C# 2008 www.apress.com SOURCE CODE ONLINE Companion eBook ... public class Contact { public int Id; public string Name; public static void PublishContacts(Contact[] contacts) { // This publish method just writes them to the console window. foreach(Contact ... professionals đ Pro LINQ: Language Integrated Query in C# 2008 Dear Reader, Pro LINQ: Language Integrated Query in C# 2008 is all about code. Literally, this book starts with code and ends with code. In writing...

Ngày tải lên: 18/01/2014, 03:20

... domain: a car manufacturing plant that makes Model T cars. Chapter 1: Code Policy This chapter notes that successful code is written through code management and not by chance. It introduces code ... cycle. Code Vision A code policy uses a code vision to articulate a statement that identifies a direction in which code should be developed. The code vision is supported by code objectives, code ... WINDOWS PrintController prtc prtcName 53W WINDOWS PrintDocument prtd prtdName 54W WINDOWS PrinterSettings prts prtsName 55W WINDOWS Process pcs pcsName 56W WINDOWS Rectangle rec recName 57W WINDOWS...

Ngày tải lên: 14/02/2014, 10:20

... Service-Oriented Architecture, 3e Beginning ASP.NET 3.5 Data Access, 2e Beginning C# 2008 Databases Beginning C# 2008 Pro LINQ: Language Integrated Query in C# 2008 www.apress.com SOURCE CODE ONLINE Companion eBook ... professionals đ Pro LINQ: Language Integrated Query in C# 2008 Dear Reader, Pro LINQ: Language Integrated Query in C# 2008 is all about code. Literally, this book starts with code and ends with code. In writing ... some common code that contains an Employee class. In that Employee class is a method to return all the employees. Also assume you have another code base of common code that contains a Contact class,...

Ngày tải lên: 05/03/2014, 21:20

... it otherwise. Source -Code Control A critical aspect of code development is making sure that the source code is protected by a source -code control system. What Source -code control manages code that is ... WINDOWS Color clr clrName 8W WINDOWS ColorPalette clrp clrpName 9W WINDOWS ComboBox cb cbName 10W WINDOWS ContextMenu ctm ctmName 11W WINDOWS CrystalReportViewer crv crvName 12W WINDOWS Cursor csr csrName 13W ... enterprise code, it is not always practical or politically acceptable to incur the upfront overhead costs of developing generic code and then specializing it in a domain application. What Developing code...

Ngày tải lên: 05/03/2014, 21:20

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Ngày tải lên: 19/03/2014, 14:08

... communications, and the interaction among them, and is a customized blend of an Electrical Engineering degree with a Computer Science degree. The computer engineering curriculum includes courses ... silicon. An integrated cir- cuit (IC) that is a full central processing unit is called a microprocessor. A CPU’s current instruction and data values are stored temporarily inside the CPU in special ... a computer by copying it to the computer’s hard drive machine language binary number codes understood by a specific CPU FIGURE 1.10 Accessing Secondary Storage Devices through Windows...

Ngày tải lên: 19/03/2014, 14:08

... It takesplaceonanunbounded rectangular grid in which each cell can either be occupied by an organism or not. Occupied cells are called alive; unoccupied cells are called dead. Which cells are definitions alive ... such as .C, .cpp, .cxx, or .cc. NAVIGATING THE DISK ForinformationonusingtheAcrobattoolbarandotherAcrobatcommands,consult the Help document within Acrobat. See especially the section “Navigating ... gains increased confidence in the accuracy of the computer program listings appearing in the text. In fact, with just two exceptions, all of the programs developed in this book have been compiled and succesfully...

Ngày tải lên: 19/03/2014, 14:10

... processing power could lead to increased production costs. Conversely, we might imagine that the same increase in processing power would have the effect of decreasing the development costs-by reducing ... for use in a line of business calculators produced by the Japanese company Busicom. In 1969, Busicom asked Intel to design a set of custom integrated circuits-one for each of their new calculator ... real machines. Few popular high-level languages can compete with C in the production of compact, efficient code for almost all processors. And, of these, only C allows programmers to interact with...

Ngày tải lên: 05/08/2014, 10:21

... T0CMPB (PCB_BASE + 0x34) #define T0CON (PCB_BASE + 0x36) #define T1CNT (PCB_BASE + 0x38) #define T1CMPA (PCB_BASE + 0x3A) #define T1CMPB (PCB_BASE + 0x 3C) #define T1CON (PCB_BASE + 0x3E) #define ... 0x 0C) #define REQST (PCB_BASE + 0x0E) #define INSTS (PCB_BASE + 0x10) /* * Timer/Counters */ #define TCUCON (PCB_BASE + 0x12) #define T0CNT (PCB_BASE + 0x30) #define T0CMPA (PCB_BASE + 0x32) #define ... 0x52) #define P1CON (PCB_BASE + 0x54) #define P1LTCH (PCB_BASE + 0x56) #define P2DIR (PCB_BASE + 0x58) #define P2PIN (PCB_BASE + 0x5A) #define P2CON (PCB_BASE + 0x 5C) #define P2LTCH (PCB_BASE + 0x5E) Other...

Ngày tải lên: 05/08/2014, 10:21

... Cyclic Redundancy Codes A cyclic redundancy code (CRC) is a specific checksum algorithm that is designed to detect the most common data errors. The theory behind the CRC is quite mathematical ... off having some way to confirm that the device is working and that the data it contains is valid. That's where checksums and cyclic redundancy codes come in. 6.3.1 Checksums How can we tell ... to detect catastrophic memory failures without specifically looking for them. So let's discuss circuit board problems in more detail. 6.2.1.1 Electrical wiring problems An electrical wiring...

Ngày tải lên: 05/08/2014, 10:21

... access them from C or C+ +. Such registers are accessible only with the help of special machine -language instructions. And these processor-specific instructions are not supported by the C or C+ + ... remainder; } } /* crcInit() */ Finally, we arrive at the actual workhorse routine, crcCompute. This is a routine that you can call over and over from your application to compute and verify CRC checksums. ... checksums. An additional benefit of splitting the computation between crcInit and crcCompute is that the crcInit function need not be executed on the embedded system. Instead, this function can...

Ngày tải lên: 05/08/2014, 10:21

... enterCS and exitCS. The block of code between these calls is said to be a critical section. A critical section is a part of a program that must be executed atomically. That is, the instructions ... Context Switch The actual process of changing from one task to another is called a context switch. Because contexts are processor- specific, so is the code that implements the context switch. That ... written in assembly language. Rather than show you the 80x86-specific assembly code that I used in ADEOS, I'll show the context switch routine in a C- like pseudocode: void contextSwitch(PContext...

Ngày tải lên: 05/08/2014, 10:21

Ngày tải lên: 05/08/2014, 10:21

Ngày tải lên: 05/08/2014, 10:21

Ngày tải lên: 05/08/2014, 10:21

Ngày tải lên: 05/08/2014, 10:21