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

Assembler Source Code a:link {text-decoration: none} a:visited {text-decoration: none} a:hover {text-decoration: none; color:#ff0000}     ; paramexe.asm ; this sample prints out the command line parameters. ; in dos you simply add this line after an executable, for example: ; paramexe p1 p2 p3 ; it is possible to set parameter in emulator ; by selecting "set command line parameters" from the "file" menu. name "paramexe" data segment msg db 'no command line parameters!', 0Dh,0Ah, '$' ends stack segment db 20 dup(0) ends code segment start: ; set segment registers: mov ax, data mov ds, ax mov si, 80h ; cmd parameters offset. ; copy command line to our buffer: xor cx, cx ; zero cx register. mov cl, es:[si] ; get command line size. cmp cx, 0 ; cx = 0 ? jz no_param ; then skip the copy. inc si ; start printing from second byte. next_char: mov al, es:[si] mov ah, 0eh ; print out in teletype mode int 10h inc si loop next_char jmp exit ; skip error message. no_param: ; print out the error message: lea dx, msg mov ah, 09h int 21h exit: ; wait for any key press... mov ah, 0 int 16h ; return control to the operating system: mov ah, 4ch int 21h ends end start

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