?? rxdoscpy.asm
字號:
lea di, offset [ _createFilename ][ bp ] ; make destination name
call _makeUniqueName ; make unique name
lea dx, offset [ _createFilename ][ bp ] ; destination filename
Int21 OpenFile, OPEN_ACCESS_READONLY ; we'll try open first
jc _Copy_52 ; MUST create -->
mov bx, ax
call GetClusterValue ; cluster of dest
mov word ptr [ _destCluster. _low ][ bp ], ax ; (cluster)
mov word ptr [ _destCluster. _high ][ bp ], dx ; (drive )
Int21 CloseFile ; release file
call _compareClusters ; compare src and dest Clusters
ifz _copyCannotCopyOverSelf ; camnnot copy over self -->
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; create file
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
_Copy_52:
getarg ax, _overide ; previous overide
lea dx, offset [ _createFilename ][ bp ] ; destination filename
; call _copyOverideCheck ; see if overide is ok
; storarg _overide, ax ; store for future reference
mov cx, ATTR_NORMAL
Int21 CreateFile ; creates NULL file (after open try above)
ifc _copyCannotCreateError ; if cannot be created or nulled -->
mov bx, ax
storarg _destHandle, ax
call GetClusterValue ; cluster of dest
mov word ptr [ _destCluster. _low ][ bp ], ax ; (cluster)
mov word ptr [ _destCluster. _high ][ bp ], dx ; (drive )
call _compareClusters ; compare src and dest Clusters
ifz _copyCannotCopyOverSelf ; camnnot copy over self -->
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; display filename
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
_Copy_56:
getarg bx, _srcHandle
Int21 IoControl, 00 ; is source a char device ?
test dx, sftIsDevice ; test device flag
jnz _Copy_66 ; if device, skip display filename -->
mov dx, offset [ RxDOS_DTA. findFileName ]
call DisplayLine ; display line
call CRLF ; cr/lf
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; copy loop
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
_Copy_66:
mov cx, 128
getarg bx, _srcHandle
lea dx, offset [ _buffer ][ bp ]
ifc _copyDisplayError ; if error -->
mov cx, ax ; bytes read
or cx, cx ; null chars returned ?
jz _Copy_82 ; must be end of file -->
getarg bx, _destHandle
lea dx, offset [ _buffer ][ bp ]
Int21 WriteFile ; write
jmp _Copy_66 ; read more -->
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; close source file
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
_Copy_82:
getarg bx, _srcHandle
call _CopyCloseFile
storarg _srcHandle, -1 ; change handle to reflect this
cmp word ptr [ __NextAddMode ][ bp ], 0000 ; is next add mode ?
jnz _Copy_92 ; yes, go to next -->
getarg bx, _destHandle
call _CopyCloseFile ; if no adds left ...
storarg _destHandle, -1
inc word ptr [ _filesCopied ][ bp ] ; # files copied.
Int21 FindNextFile ; see if more files to copy
ifnc _Copy_36 ; if file found -->
_Copy_92:
jmp _Copy_30
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; return
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
_Copy_Return:
getarg bx, _destHandle
cmp bx, -1 ; destination still open ?
jz _Copy_ReturnClose_08 ; no, don't close -->
call _CopyCloseFile
storarg _destHandle, -1
inc word ptr [ _filesCopied ][ bp ] ; # files copied.
_Copy_ReturnClose_08:
lea di, offset [ _filesCopied ][ bp ]
push di ; first arg encountered
mov di, offset _Copy_FilesCopied
push di
lea di, offset [ _buffer ][ bp ]
push di
call _sprintf
add sp, ax ; # args passed
call DisplayLine
Return
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; add mode
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
_Copy_AddMode:
mov word ptr [ __AddMode ][ bp ], -1 ; set add mode
jmp _Copy_32
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; test switches
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
_Copy_TestSwitch:
mov al, byte ptr [ si+1 ]
call _lowerCase ; test switch option
goto 'a', _copyAsciiSwitch
goto 'b', _copyBinarySwitch
push ax
mov dx, offset CmndError_BadSwitch
call DisplayLine ; show error message
pop dx
call DisplayLine ; show arg
Return
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; if ascii switch
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
_copyAsciiSwitch:
storarg __Mode, 01 ; ascii mode
jmp _Copy_32
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; if binary switch
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
_copyBinarySwitch:
storarg __Mode, 00 ; binary mode
jmp _Copy_32
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; error in rename command
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
_copyCannotCopyOverSelf:
mov dx, offset CmndError_CannotCopyUntoSelf
jmp short _copyDisplayError
_copyCannotCreateError:
mov dx, offset CmndError_CannotCreateFile
; jmp short _copyDisplayError
_copyDisplayError:
call DisplayErrorMessage
; jmp short _copyErrorCleanUp
_copyErrorCleanUp:
getarg bx, _destHandle
cmp bx, -1 ; if not assigned,
jz _copyErrorCleanUp_08 ; don't delete -->
call _CopyCloseFile
_copyErrorCleanUp_08:
Return
;''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''';
; Do Not Close Device ;
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -;
; ;
; Inputs: ;
; bx file Handle ;
; ;
;...............................................................;
_CopyCloseFile:
cmp bx, -1 ; if not assigned,
jz _CopyClose_Exit ; exit -->
or bx, bx
jz _CopyClose_Exit ; exit -->
Int21 IoControl, 00 ; is source a char device ?
test dx, sftIsDevice ; test device flag
jnz _CopyClose_Exit ; if device, skip close -->
Int21 CloseFile ; close source file
_CopyClose_Exit:
ret
;''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''';
; Get ptrto filename after drive and path info ;
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -;
; ;
; Inputs: ;
; ss:di pointer to null terminated path ;
; ;
; Outputs: ;
; di returns pointer within name ;
; cy set if no filename found ;
; ;
;...............................................................;
_PtrTo_Filename:
xor ax, ax
mov cx, -1
repnz scasb ; scan for null terminator
neg cx ; actual size in cx
_PtrTo_Filename_08:
cmp byte ptr ss:[ di - 1 ], '\' ; previous char a '\' ?
jz _PtrTo_Filename_12 ; if found -->
dec di ; scan prev
loop _PtrTo_Filename_08 ; continue until start -->
stc
_PtrTo_Filename_12:
ret
;''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''';
; Insure OK to overwrite file ;
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -;
; ;
; Inputs: ;
; ax previous overide ;
; dx filename pointer ;
; ;
; Outputs: ;
; dx filename pointer ;
; ax action code ;
; 'A' overide all ;
; 0000 no ;
; 0001 yes ;
; ;
;...............................................................;
_copyOverideCheck:
cmp al, 'A' ; all ?
jnz _copyOverideCheck_06 ; no -->
ret
_copyOverideCheck_06:
push dx
mov cx, ATTR_NORMAL ; normal
Int21 FindFirstFile ; see if file exists
ifc _copyOverideCheck_OK ; doesn't, so exit with OK to overide
; display message, get overide ..
_copyOverideCheck_OK:
mov ax, TRUE
_copyOverideCheck_Exit:
pop dx
ret
;''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''';
; Copy Argument ;
;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -;
; ;
; Usage: ;
; si points to argument start ;
; di points to destination ;
;...............................................................;
_copyArgument:
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -