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assemblyx86dostasm

How to center text in TASM?

Hi guys. I have a problem here in TASM. Here I have codes using ASCII code to display a name. How will I put the output in the center?.

.model small
.stack 200h
.code

start:

Mov ah, 2
Mov dl, 68
Int 21h

Mov ah, 2
Mov dl, 97
Int 21h
Mov ah, 2
Mov dl, 114
Int 21h

mov ah, 4ch
mov al,00h
int 21h

end start
Solution

  • Use the GET CURSOR POSITION AND SIZE and SET CURSOR POSITION interrupts for that:

    mov ah,3    ; Get the current cursor position
mov bh,0
int 10h

mov ah,2    ; Set cursor position
mov bh,0
mov dl,39   ; New column. In an 80 column text mode this will just about center
            ; the 3 characters 
; We wanto to stay on the same row, so we don't change dh
int 10h