Эмулятор процессора Intel 8086 версия 4.05 (ENG) / asm_files / attrib.asm

Assembler Source Code a:link {text-decoration: none} a:visited {text-decoration: none} a:hover {text-decoration: none; color:#ff0000}     ; attrib.asm name "attrib" ; set and get file attributes... ; note 1: you need to manually create and copy "test.txt" to: ; c:\emu8086\vdrive\c before running this example. ; note 2: it may look like the file suddenly disappears unless ; you set the settings of file manager to show system and hidden files. ; note 3: file must exist for setting parameters. however reading ; parameters does not require the existance of a file and ; it is usually used to check if file exists or not. org 100h jmp start filename db "c:\test.txt", 0 sOK db "ok! file found. attributes set: system, hidden & read-only. $" sERR db "file does not exist. (expected i/o error)", 0dh, 0ah db ' you need to manually create and copy "test.txt" to:', 0dh, 0ah db " c:\emu8086\vdrive\c before running this example.$" ; when running in emulator, the real path of this file is: ; c:\emu8086\vdrive\c\test.txt start: xor cx, cx ; read attributes: mov ah, 43h mov al, 0 mov dx, offset filename int 21h jc error ; set new attributes: mov ah, 43h mov al, 1 mov cx, 7 mov dx, offset filename int 21h jc error mov dx, offset sOK mov ah, 9 int 21h jmp wait_any_key error: mov dx, offset sERR mov ah, 9 int 21h wait_any_key: mov ah, 0 int 16h ret

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