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

Assembler Source Code a:link {text-decoration: none} a:visited {text-decoration: none} a:hover {text-decoration: none; color:#ff0000}     ; param.asm ; this sample prints out the command line parameters. ; in dos you simply add this line after the executable, ; for example: ; param p1 p2 p3 ; in emulator it is possible to set parameters ; by selecting "set command line paramters" from the "file" menu. name "param" org 100h jmp start buffer db 30 dup (' ') msg db 'no command line parameters!', 0Dh,0Ah, '$' start: mov si, 80h ; cmd parameters offset. ; copy command line to our buffer: xor cx, cx ; zero cx register. mov cl, [si] ; get command line size. lea di, buffer ; load buffer address to di. cmp cx, 0 ; cx = 0 ? jz no_param ; then skip the copy. inc si ; copy from second byte. next_char: mov al, [si] mov [di], al inc si inc di loop next_char ; set '$' sign in the end of the buffer: mov byte ptr [di], '$' ; print out the buffer: lea dx, buffer mov ah, 09h int 21h 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.... mov ah, 0 int 16h ret ; return control to the operating system.

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