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THIS JUST WONT WORK!!!!!!
Code:
start:
mov ds, cs
jmp main
TheTitle db "Size [size.com]", 10, 13,
db "Copyright (C) 2000-2001 Jake E Bush. All rights reserved.", 10, 13, 10, 13,
db "usage: size [file-name]", 10, 13, 10, 13,
db "[file-name]", 10, 13,
db " Points to the file you want the size of.", 10, 13, "$"
TooMany db "Too many parameters.", 10, 13, "$"
Error1 db "Missing file sharing software.", 10, 13, "$"
Error2 db "File not found.", 10, 13, "$"
Error3 db "Path not found or file does not exist.", 10, 13, "$"
Error4 db "No handle available.", 10, 13, "$"
Error5 db "Access denied.", 10, 13, "$"
Error6 db "Access mode not permitted.", 10, 13, "$"
Error7 db "Unknown error.", 10, 13, "$"
FileHandle dw 0
main:
call Argc
;If none
cmp cx, 0
je none
;If one
cmp cx, 1
je one
;If more than one
cmp cx, 2
jae two
none:
mov ah, 9
mov dx, offset TheTitle
int 21h
jmp exit
two:
mov ah, 9
mov dx, offset TooMany
int 21h
jmp exit
one:
xor bx, bx
mov bl, [0080h]
mov word ptr [BX+0082h], 240Ah
;mov dx, 0082h
;mov ah, 09
;int 21h
;Open file
xor cx, cx
mov ah, 3dh
mov al, 0h
mov dx, 0082h
int 21h
jc error
mov FileHandle, ax
;CloseFile
mov ax, 3eh
mov bx, FileHandle
int 21h
jmp exit
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
error:
cmp al, 01h
je er1
cmp al, 02h
je er2
cmp al, 03h
je er3
cmp al, 04h
je er4
cmp al, 05h
je er5
cmp al, 0ch
je er6
jmp er7
er1:
mov ah, 9
mov dx, offset Error1
int 21h
jmp exit
er2:
mov ah, 9
mov dx, offset Error2
int 21h
jmp exit
er3:
mov ah, 9
mov dx, offset Error3
int 21h
jmp exit
er4:
mov ah, 9
mov dx, offset Error4
int 21h
jmp exit
er5:
mov ah, 9
mov dx, offset Error5
int 21h
jmp exit
er6:
mov ah, 9
mov dx, offset Error6
int 21h
jmp exit
er7:
mov ah, 9
mov dx, offset Error7
int 21h
jmp exit
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
exit:
ret
;=======================================================================================
Argc proc
;call Argc
;[cx] = The number of arguments
push ds
push ax
push bx
mov ah, 62h ;Get PSP DOS call
int 21h
mov ds, bx ;Point DS at PSP.
mov bx, 80h ;Pointer to start of cmd line-1
mov cx, 0 ;Start cnt at zero
CntLoop1: inc bx ;Move on to next char.
cmp byte ptr [bx], ' ' ;Skip all spaces here.
je CntLoop1
mov al, [bx]
cmp al, 13 ;See if carriage return
je ArgcDone
;
; We just headed into a word of some sort. Skip all the chars in this argument.
;
inc cx ;First, count this argument
;
cmp al, '"' ;See if it's a string.
je GotString1
cmp al, "'"
je GotString1
;
; If not a string, skip to next space or CR.
;
SkipWord1: inc bx
cmp byte ptr [bx], ' '
je CntLoop1
cmp byte ptr [bx], 13
je ArgcDone
jmp skipWord1
;
; If we've got a string, skip to the delimiter or to the end of the line.
;
GotString1: inc bx
cmp al, [bx] ;See if the delimiter
je CntLoop1
cmp byte ptr [bx], 13 ;See if EOLN
jne GotString1
;
; Come down here when we're done:
;
ArgcDone: pop bx
pop ax
pop ds
ret
Argc endp
;=======================================================================================
end start
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is mov ds, cs a valid command?
itay.
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no.
The MOV instruction does not support seg -> seg.
