TAILIEUCHUNG - Cracker Handbook 1.0 part 49

Tham khảo tài liệu 'cracker handbook part 49', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | AH 02H DL Value of the character to display. Return registers None. This function displays the character whose hexadecimal code corresponds to the value stored in the DL register and no register is modified by using this command. The use of the 40H function is recommended instead of this function. 09H FUNCTION Use It displays a chain of characters on the screen. Call registers AH 09H DS DX Address of the beginning of a chain of characters. Return registers None. This function displays the characters one by one from the indicated address in the DS DX register until finding a character which is interpreted as the end of the chain. It is recommended to use the 40H function instead of this one. 40H FUNCTION Use To write to a device or a file. Call registers AH 40H BX Path of communication CX Quantity of bytes to write DS DX Address of the beginning of the data to write Assembly Language Tutor Table of Contents 1 Introduction 2 Basic Concepts 3 Assembler programming 4 Assembler language instructions 5 Interruptions and file managing 6 Macros and procedures 7 Program examples 1 Introduction Table of contents What s new in the Assembler material Presentation Why learn Assembler language We need your opinion What s new in the Assembler material After of one year that we ve released the first Assembler material on-line. We ve received a lot of e-mail where each people talk about different aspects about this material. We ve tried to put these comments and suggestions in this update assembler material. We hope that this new Assembler material release reach to all people that they interest to learn the most important language for IBM PC. In this new assembler release includes A complete chapter about how to use debug program More example of the assembler material Each section of this assembler material includes a link file to Free On-line of Computing by Dennis Howe Finally a search engine to look for any topic or item related with this updated material. .

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