我想打印當前的工作目錄及其內容。該程序將使用x86,16位Intel語法,使用中斷的DOS彙編完成。我將使用的彙編程序將是Turbo彙編程序。這裏是我的代碼到目前爲止(不多):在程序集中列出目錄內容?
ASSUME cs:code, ds:data
data segment
buffer db 64 dup (0) ; buffer for the current directory name
data ends
code segment
start:
mov ax, data ;
mov ds, ax ; move data segment into ds, es registers
mov es, ax ;
mov dl, 0 ; default drive
mov si, offset buffer ; put current directory in buffer
mov ah, 47h ; GET CURRENT DIRECTORY
int 21h
; appending '$' to buffer end
; search until 0 found
mov cx, 64 ; search over all buffer
cld ; starting from the beginning
end_string:
lodsb ; get current byte in al register
cmp al, 0 ; compare it with 0
jne continue ; if not equal jump to continue label
mov al, 36 ; if equal copy 36('$' - ASCII) in al
mov di, si ; set destination index to source index
sub di, 1 ; decrement di
stosb ; store in es:di the value contained in al
mov cx, 1 ; stop looping by setting cx to 1
continue:
loop end_string
; print string obtained
mov dx, offset buffer ; ds:dx - string start
mov ah, 09h ; WRITE STRING TO STANDARD OUTPUT
int 21h
mov ax, 4c00h ; end program with exit code 0
int 21h
code ends
end start
我設法讓它運行並顯示當前的工作目錄。但現在我不知道如何獲得他的子目錄和目錄中包含的文件。所以我的問題是:我如何得到它們?