WebSep 12, 2024 · It is best to use int 21h function 4ch to exit from exe programs since function 4ch doesn’t require that CS point to the PSP. Interrupt 21H (int 21h) DOS Service Calls Interrupt 21H Service 0 : Terminate program Terminates a program and returns to DOS. Input: AH = 00h CS = Segment address of Program Segment Prefix (PSP) Ouput: none Web13 Years Ago. im using fasm (flat assembler 1.68), and im trying to output a string with int21h/ah=09h. jmp main msg db "hello world$" main: mov dx, msg mov ah, 09 int 21h. this code outputs "hello world", but it outputs some control characters before it ( [SOME WEIRD CONTROL CHARACTERS]hello world) so how can i fix this? assembly. 4 Contributors.
The list of all interrupts that are currently supported by the …
WebAlso, using Int 21h with 35h in al for setting an interrupt vector is called "a safe way of seeting an interrupt vector". What is the difference ... - IN AL,21h; OR AL,2; OUT 21h,AL - … WebIN AL,21H ;从端口21H的读取一个字节至AL AND AL,7FH ;将AL的逻辑与1,7FH = 0111 1111B OUT 21H,AL ;将AL写入至端口21H I/O端口21H为8259 PIC(Programmable … chipotle egg harbor
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WebApr 15, 2024 · April 15, 2024, 6:55 AM · 3 min read. Rivalry between Gen Mohamed Hamdan Dagalo (pictured) and Gen Abdel Fattah al-Burhan is at the heart of the problem. The … WebINT 21H (0x21) Function 0CH (0x0C or 12) --> Flush input buffer and then Input. Call with: AH = 0CH AL = number of input to be invoked after resetting buffer (must be 01H, 06H, 07H, 08H or 0AH) If AL = 0AH DS: DX = segment: offset of input buffer . Returns: If called with AL = 01H, 06H, 07H, or 08H, AL = 8-bit input data. If called with AL= 0AH, Webmov dl,08h int 21h The difference between Functions 02h and 06h is that the 06h function returns the ASCII code of the character in AL , if ZF =0. 2. INT 21h Function 05h: Write Character to Default Pr inter ... int 21h ; AL = character jz L2 ; quit if ZF = 1 (EOF) xor al,XORVAL mov ah,6 ; write to output mov dl,al int 21h jmp L1 ; repeat the ... chipotlee in east orange nj