• 한국멀티미디어학회논문지
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• 제7권6호
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• pp.824-831
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• 2004

This paper presents the java bytecode-to-.NET MSIL intermediate language translator which enables the execution of the java program in .NET environments without JVM(java Virtual Machine), translating bytecodes produced by compiling java programs into MSIL codes. Java, one of the most widely used programming languages recently, is the language invented by James Gosling at Sun Microsystems, which is the next generation language independent of operating systems and hardware platforms. Java source code is compiled into bytecode as intermediate code independent of each platform by compiler, and also executed by JVM. .NET language such as C# and .NET platform in Microsoft Corp. has been developed to meet the needs of programmers, and cope with Java and JVM platform of Sun Microsystems. After compiling, a program written in .NET language is converted to MSIL code, and also executed by .NET platform but not in JVM platform. For this reason, we designed and implemented the java bytecode-to-.NET MSIL translator system for programs written in java language to be executed in the. NET platform without JVM. This work improves the execution speed of programs, enhances the productivity, and provides a environment for programmers to develop application programs without limitations of programming languages.

• 한국멀티미디어학회논문지
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• 제10권3호
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• pp.411-419
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• 2007

EVM(Embedded Virtual Machine)은 모바일 디바이스, 셋톱박스, 디지털 TV에 탑재되어 하드웨어에 독립적으로 수행되는 스택기반 가상기계이며, SIL(Standard Intermediate Language)은 EVM의 중간언어로 객체지향 언어와 순차적인 언어를 위한 연산 코드 집합을 갖고 있다. 기존에는 C 프로그램을 실행하기위해 플랫폼에 의존적인 목적코드로 변환하여 실행하였다. 이런 문제를 해결하기 위해 본 연구팀은 EVM을 개발하면서 목적기계의 코드가 아닌 플랫폼에 독립적인 스택기반의 SIL 코드를 생성하는 ANSI C 컴파일러를 개발하였다. 본 논문에서는 ANSI C 컴파일러가 생성한 SIL 코드를 3-주소 코드 형태의 재 표현된 ANSI C 프로그램으로 변환하는 SIL-to-C 역컴파일러(Decompiler) 시스템을 설계하고 구현하였다. 이와 같은 작업은 ANSI C 컴파일러가 생성한 SIL 코드가 올바른지를 확인할 수 있는 검증 방법을 제시하며, 소프트웨어 오작동 및 버전 호환이 이루어지지 않을 때 소프트웨어의 구조를 변경하고 수정하여 성능을 개선하는 작업을 용이하게 한다.

• 한국어교육
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• 제29권3호
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• pp.145-163
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• 2018

The purpose of this study was to identify the necessity of research for increasing French language learners and to examine their use of listening strategies according to their proficiency as a basic study for their continuous learning and communication skills. In the case of French language Korean learners, both the beginner and intermediate learners used the upper cognitive strategy most frequently. However, the cognitive strategy, which has been mentioned as a frequently used strategy in previous studies, was found to be the least used in this study. This finding can be attributed to differences in mores and mastery of prior studies and research subjects. The cognitive strategy was lower in both the beginner and intermediate levels, but the level of use increased significantly in the intermediate level compared to the beginner level, showing only statistically significant differences in the usage patterns according to the proficiency level among the four listening strategies.

• 정보과학회지
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• 제4권2호
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• pp.65-73
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• 1986

Compiler 교육용 Compiler의 필요성은 강조할 필요가 있다. 이 교육용 Compiler가 가져야 할 성질은 다음과 같다. 첫째, Modular programming Technique사용하여 이해하기 쉬운 작은 program 형태로 만들어야 한다. 그렇게 함으로써 학생들이 상호결합(interface)변수와 형태를 알고 Compiler의 한 부분을 자신의 program으로 대치한 후 실험하여 볼 수 있다. 둘째; 내부에서 사용되는 Table은 간단한 형태로 구성한다. 세째; 다른 언어의 Compiler를 쓸때 사용하는 program(예를들면 parser generator)이 있어야 한다. 이것을 이용하여 학생들은 자신이 만든 언어의 Compiler를 학기중에 만들 수 있다. 넷째; REAL TIME clock을 이용하여 각 program module이 사용한 시간을 찍어낼 수 있어야 한다. 이렇게 함으로써 어떤 module이 가장 많은 시간을 소모하며, 이것을 개선하는 방 법을 찾아낼 수 있다. 다섯째; Compile된 결과를 Assembler 언어로도 출시시킬 수 있어야 한다. 위와 같은 교육용 Compiler의 제작 방법과 그 문제점에 대하여 서술하려고 한다.

• 한국어교육
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• 제29권1호
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• pp.199-222
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• 2018

This study attempts to apply process drama in teaching Korean speaking. For that goal, the first part of the study introduces the main features of process drama exploring the possible use of teaching Korean speaking, and the second part presents a concrete example of developing a unit of the Sejong intermediate Korean conversation coursebook which was designed using a process drama method. Process drama is a process-oriented drama activity which progresses only with the teacher and students' spontaneous participation. With its unique meaning-oriented interaction paradigm, it has been suggested as an effective way of teaching and learning a foreign language. Since it emphasizes students' spontaneity, cooperation, and authentic communication, it commonly provides plenty of opportunities for students to interact in a meaningful context. Despite its effectiveness in teaching speaking, it has rarely been used in KFL contexts. Considering the limited opportunities to practice speaking in KFL classrooms, using a communication-rich activity such as process drama would be an optimal solution. This study, therefore, examines possible application of process drama in teaching Korean speaking, and introduces sample speaking materials designed for KFL intermediate learners.

• 전자공학회논문지A
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• 제29A권9호
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• pp.76-84
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• 1992

The DSP silicon compiler consists of language compiler, module generator, placement tool, router, layout generation tools, and simulator. In this paper, The language compiler, the module generator, placement tool, and simulator were developed and provided for the system designer. The language compiler translates the designer's system description language into the intermediate form file. The intermediate form file expresses the interconnections and specifications of the cells in the cell library. The simulator was developed and provided for the behavioral verification of the DSP system. For its implementation, the event-driven technique and the C$^{++}$ task library was used. The module generator was developed for the layout of the verified DSP system, and generates the functional block to be used in the DSP chip. And then the placement tool determines the appropriate positions of the cells in the DSP chip. In this paper, the placement tool was implemented by Min-Cut and Simulated Annealing algorithm. The placement process can be controlled by the several conditions input by the system designer.

• 비교문화연구
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• 제22권
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• pp.303-327
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• 2011

This study aims to uncover the learner's language proficiency shown in the writing data of Chinese elementary/intermediate level learners. Language proficiency of the learners acquired by error analysis provides only partial information, and thus this study analyses the interlanguage of Korean learners in terms of 'Mean Length of Utterance, MLU' to discover the overall aspect of learner's language proficiency more symmetrically. The analysis of vocabulary area is to be enforced after generally studying the learner's language development aspect in accordance with MLU-m(orpheme) and MLU-(w)ord found in compositions by Chinese speaking Korean language learners. In terms of MLU, it has been slightly increased as the level of proficiency between elementary level and intermediate level learners; however, the morpheme seemed to be difficult to use, since the difference between Chinese learners and Korean university students has been notably shown. Vocabulary diversity, using aspect for each word class, and using aspect of the predicate are studied for vocabulary area; more various and numerous vocabulary tend to be used as the level of proficiency increases. In terms of predicate use, Chinese learners use less numerous vocabulary types.

• 전자공학회논문지B
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• 제28B권7호
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• pp.540-547
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• 1991

This paper proposes a machine in dependent automatic microcode generation system using a microtnstruction description language, MDL. The MDL, which has similar structure to C language, is a high-level microarchitecture description language. It defines the hardwaer elements and the operand selection of microoperartions. The proposed system generates microcode automatically by describing the structure information of a target microarchitectuer and accepting thebehavioral information of microoperations which are generated ad a intermediate language from HLML-C. This proposed system is implemented with C language and YACC on a SUN workstation (4.3 BSD).

• 한국멀티미디어학회논문지
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• 제8권12호
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• pp.1658-1668
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• 2005

This paper presents the bytecode-to-SIL translator which enables the execution of the java program in EVM(Embedded Virtual Machine) environment without JVM(java Virtual Machine), translating bytecodes produced by compiling java programs into SIL(Standard Intermediate Language) codes. EVM, what we are now developing, is a virtual machine solution that can download and execute dynamic application programs written in sequential languages like C language as well as object oriented languages such as C#, Java, etc. EVM is a virtual machine mounted on embedded systems such as mobile device, set-top box, or digital TV, and converts the application program into SIL, an assembly language symbolic form, and execute it. SIL is a virtual machine code for embedded systems, based on the analysis of existing virtual machine codes such as bytecode, MSIL, etc. SIL has such features as to accommodate various programming languages, and in particularly has an operation code set to accept both object-oriented languages and sequential languages. After compiling, a program written in java language is converted to bytecode, and also executed by JVM platform but not in other platform such as .NET, EVM platform. For this reason, we designed and implemented the bytecode-to-SIL translator system for programs written in java language to be executed in the EVM platform without JVM. This work improves the execution speed of programs, enhances the productivity, and provides an environment for programmers to execute application programs at various platforms.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 하계종합학술대회 논문집(2)
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• pp.97-100
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• 2002

A procedural interface libary for IEEE Verilog 1364-2001 is developed. The lexer and scanner are developed to handle “Verilog-2001” which is the first major update to the Verilog language since its inception in 1984. Also the newly developed XML intermediate format for Verilog-2001 is Presented in the paper. By using the XML intermediate, it allows the portable and scalable development of various kinds of applications. The XML DTD(Document Type Definition) of Verilog is defined and the corresponding XML intermediate format is developed. The paper describes example application of code rule checker which is built using the language interface library.