When C++ was first introduced many benefits such as code reuse, Portability and scalability were promised, but somehow these benefits failed to eventuate. It didn’t take too long before most people in the embedded world decided that the promises were just hype, and settled down to using C++ as a slightly better version of C
介紹基于VHDL的微型打印機控制器的設(shè)計。論述了微型打印機的基本原理，以及實現(xiàn)控制器的VHDL語言設(shè)計。打印機的數(shù)據(jù)來自系統(tǒng)中的存儲模塊，根據(jù)需要控制打印。該微型打印機控制器可取代傳統(tǒng)的微型打印機,且抗干擾性好,可靠性高，具有較強的移植性，稍加改動就可應(yīng)用于不同場合。
Abstract:
This paper introduced the design method of micro printer controller based on VHDL.The basic principles of microprinter is explained,as well as the realization of the controller by VHDL language.The printer data is from the system memory modules,can control printer.The design of microprinter controller has antigood and high reliability，it can replace the traditional printer.The controller has very good Portability,and need little modify that can use in different situation.
本文利用Verilog HDL 語言自頂向下的設(shè)計方法設(shè)計多功能數(shù)字鐘，突出了其作為硬件描述語言的良好的可讀性、可移植性和易理解等優(yōu)點，并通過Altera QuartusⅡ 4.1 和ModelSim SE 6.0 完成綜合、仿真。此程序通過下載到FPGA 芯片后，可應(yīng)用于實際的數(shù)字鐘顯示中。
關(guān)鍵詞：Verilog HDL；硬件描述語言；FPGA
Abstract: In this paper, the process of designing multifunctional digital clock by the Verilog HDL top-down design method is presented, which has shown the readability, Portability and easily understanding of Verilog HDL as a hard description language. Circuit synthesis and simulation are performed by Altera QuartusⅡ 4.1 and ModelSim SE 6.0. The program can be used in the truly digital clock display by downloading to the FPGA chip.
Keywords: Verilog HDL；hardware description language；FPGA
This article describes Atmel’s FingerChip technology for electronic fingerprint sensing that
combines the advantages of small size, low cost, high accuracy, zero maintenance, low energy
consumption and Portability. This technology has applications in a wide range of fixed and
portable secured devices including access control systems, cash terminals, public transport, PCs,
PDAs, Smart Card readers and motor vehicles. It can be used in almost any situation where
rapid, reliable and accurate identification or authentication of an individual is required.
FIST可堆疊文件系統(tǒng)，linux文件系統(tǒng)修改相關(guān)的開源軟件，使得對linux文件系統(tǒng)功能的改進很簡單了
The FiST (File System Translator) system combines two methods to solve the above problems in a novel way: a set of stackable file system templates for each operating system, and a high-level language that can describe stackable file systems in a cross-platform portable fashion. Using FiST, stackable file systems need only be described once. FiST s code generation tool, fistgen, compiles a single file system description into loadable kernel modules for several operating systems (currently Solaris, Linux, and FreeBSD). The project demonstrates that with FiST, code size and development time are reduced significantly, while imposing a small performance overhead of only 1-2％. These benefits are achieved, as well as Portability, without changing existing operating systems or file system.
The second volume in the Write Great Code series supplies the critical information that today s computer science students don t often get from college and university courses: How to carefully choose their high-level language statements to produce efficient code. Write Great Code, Volume 2: Thinking Low-Level, Writing High-Level, teaches software engineers how compilers translate high-level language statements and data structures into machine code. Armed with this knowledge, a software engineer can make an informed choice concerning the use of those high-level structures to help the compiler produce far better machine code--all without having to give up the productivity and Portability benefits of using a high-level language
The core of Java(TM) technology, the Java virtual machine is an abstract computing machine that enables the Java(TM) platform to host applications on any computer or operating system without rewriting or recompiling. Anyone interested in designing a language or writing a compiler for the Java virtual machine must have an in-depth understanding of its binary class format and instruction set. If you are programming with the Java programming language, knowledge of the Java virtual machine will give you valuable insight into the Java platform s security capabilities and cross-platform Portability. It will increase your understanding of the Java programming language, enabling you to improve the security and performance of your programs.
This GLib version 2.16.1. GLib is the low-level core
library that forms the basis for projects such as GTK+ and GNOME. It
provides data structure handling for C, Portability wrappers, and
interfaces for such runtime functionality as an event loop, threads,
dynamic loading, and an object system.
Fortran has always been the principal language used in the fields of scientific,
numerical, and engineering programming, and a series of revisions to the standard
defining successive versions of the language has progressively enhanced its power
and kept it competitive with several generations of rivals.
Beginning in 1978, the technical committee responsible for the development
of Fortran standards, X3J3 (now called J3), laboured to produce a new, much-
needed modern version of the language, Fortran 90. Its purpose is to "promote
Portability, reliability, maintainability, and efficient execution... on a variety of
computing systems". The standard was published in 1991, and work began in
1993 on a minor revision, known informally as Fortran 95. Now this revised
