TITLE EXOR
.model small
.stack 100h
.data
iamge db 'exor.bmp',0
.code
mov dx,[bp+4]
MOV AX,3d00h
int 21h
end
我正在尝试使用程序集打开一个 bmp 文件，但是当我 tasm 我的 asm 文件时发生了这种情况 你能帮我解释为什么会出现这个错误吗？ 我可以 tasm asm 但是当我运行它或 tlink 它时会显示此消息
Fatal: 16-bit segments is not supported in module exor.asmIDEAL
MODEL small
STACK 100h
DATASEG
filename db 'test.bmp',0
filehandle dw ?
Header db 54 dup (0)
Palette db 256*4 dup (0)
ScrLine db 320 dup (0)
ErrorMsg db 'Error', 13, 10,'$'
CODESEG
proc OpenFile
; Open file
mov ah, 3Dh
xor al, al
mov dx, offset filename
int 21h
jc openerror
mov [filehandle], ax
ret
openerror:
mov dx, offset ErrorMsg
mov ah, 9h
int 21h
ret
endp OpenFile
proc ReadHeader
; Read BMP file header, 54 bytes
mov ah,3fh
mov bx, [filehandle]
mov cx,54
mov dx,offset Header
int 21h
ret
endp ReadHeader
proc ReadPalette
; Read BMP file color palette, 256 colors * 4 bytes (400h)
mov ah,3fh
mov cx,400h
mov dx,offset Palette
int 21h
ret
endp ReadPalette
proc CopyPal
; Copy the colors palette to the video memory
; The number of the first color should be sent to port 3C8h
; The palette is sent to port 3C9h
mov si,offset Palette
mov cx,256
mov dx,3C8h
mov al,0
; Copy starting color to port 3C8h
out dx,al
; Copy palette itself to port 3C9h
inc dx
PalLoop:
; Note: Colors in a BMP file are saved as BGR values rather than RGB.
mov al,[si+2] ; Get red value.
shr al,2 ; Max. is 255, but video palette maximal
; value is 63. Therefore dividing by 4.
out dx,al ; Send it.
mov al,[si+1] ; Get green value.
shr al,2
out dx,al ; Send it.
mov al,[si] ; Get blue value.
shr al,2
out dx,al ; Send it.
add si,4 ; Point to next color.
; (There is a null chr. after every color.)
loop PalLoop
ret
endp CopyPal
proc CopyBitmap
; BMP graphics are saved upside-down.
; Read the graphic line by line (200 lines in VGA format),
; displaying the lines from bottom to top.
mov ax, 0A000h
mov es, ax
mov cx,200
PrintBMPLoop:
push cx
; di = cx*320, point to the correct screen line
mov di,cx
shl cx,6
shl di,8
add di,cx
; Read one line
mov ah,3fh
mov cx,320
mov dx,offset ScrLine
int 21h
; Copy one line into video memory
cld ; Clear direction flag, for movsb
mov cx,320
mov si,offset ScrLine
rep movsb ; Copy line to the screen
;rep movsb is same as the following code:
;mov es:di, ds:si
;inc si
;inc di
;dec cx
;loop until cx=0
pop cx
loop PrintBMPLoop
ret
endp CopyBitmap
start:
mov ax, @data
mov ds, ax
; Graphic mode
mov ax, 13h
int 10h
; Process BMP file
call OpenFile
call ReadHeader
call ReadPalette
call CopyPal
call CopyBitmap
; Wait for key press
mov ah,1
int 21h
; Back to text mode
mov ah, 0
mov al, 2
int 10h
exit:
mov ax, 4c00h
int 21h
END start
这应该可以工作，它有一些功能可以打开文件，复制文件 pal 并将其打印在屏幕上
希望有帮助