assembly 8086 cursor placement

Question

I want to place the cursor after the "paper:" wait until an ENTER is given and then place it after "author(s):". both sentences are defined variables that are printed.

    insert db "******* Insert new paper *******",0,0Ah,0Ah,0Ah, 0Dh, "$"  
    inserttitle db "  Title of paper:      ",0Dh,0Ah,0Ah, "  Name of author(s):     ",0Dh ,"$"
    mainext db ,0Ah,0Ah,0Ah,0Ah,0Ah,0Ah,0Ah,0Ah,"     <<Main>>              <<Next>>","$"

 INSERT NEW PAPER

newpaper proc

    call clrscr

    mov dx, offset insert
    call printf

    mov dx, offset inserttitle
    call printf

    mov dx, offset mainext
    call printf

    call w8click   
    ret

newpaper endp

yes, you're supposed to write the paper title and then the autor's name. after the 2nd enter you are able to either click next or main — justwarmilk, Dec 02 '16 at 21:01
the mouse clicking is already tested and working, i just can't figure out how to work with the cursor — justwarmilk, Dec 02 '16 at 21:03
The mouse? So you are using the mouse? Ok, do this : when the mouse is clicked, you call my proc `set_cursor` to set the cursor at the mouse position. — Jose Manuel Abarca Rodríguez, Dec 02 '16 at 21:04

score 4 · Accepted Answer · edited Dec 04 '16 at 15:51

4

Call next proc to position cursor :

;INPUT : DL=X, DH=Y.
set_cursor proc
      mov  ah, 2                  ;◄■■ SERVICE TO SET CURSOR POSITION.
      mov  bh, 0                  ;◄■■ VIDEO PAGE.
      int  10h                    ;◄■■ BIOS SERVICES.
      RET
set_cursor endp

Example :

call clrscr

mov  dx, offset inserttitle ;◄■■ "  Title of paper:      "
call printf

mov  dl, 18                 ;◄■■ SCREEN COLUMN 18 (X).
mov  dh, 2                  ;◄■■ SCREEN ROW 2 (Y).
call set_cursor             ;◄■■ SET CURSOR POSITION.

In previous example cursor will jump to after "paper: ".

Edit : two more procs, cursor_on and cursor_off, to show and hide cursor:

cursor_on proc
   mov  ah, 1
   mov  cx, 4          ;◄■■ BIG CURSOR.
   int  10h
   ret
cursor_on endp


cursor_off proc
   mov  ah, 1
   mov  cx, 20h        ;◄■■ NO CURSOR.
   int  10h
   ret
cursor_off endp

edited Dec 04 '16 at 15:51

Sep Roland

33,889
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answered Dec 02 '16 at 21:00

Jose Manuel Abarca Rodríguez

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@justwarmilk, if you have any question about my proc `set_cursor` just shoot, it's very easy to use. – Jose Manuel Abarca Rodríguez Dec 02 '16 at 21:52
i tried exactly that but it doens't show the cursor, don't know if it's a problem with the emulator. what do i need to add to be able to type? – justwarmilk Dec 02 '16 at 22:03
@justwarmilk, is the cursor totally invisible? – Jose Manuel Abarca Rodríguez Dec 02 '16 at 22:05
@justwarmilk, added two more procs to show and hide cursor. – Jose Manuel Abarca Rodríguez Dec 02 '16 at 22:09

Sergio Alemàn · Answer 2 · 2020-11-26T01:41:23.557

0

this is a macro that receives the positions X,Y


gotoxy macro x y 
    mov ah,02h
    mov bh, 00h
    mov dl,x
    mov dh,y
    int 10h
    goto endm

; to call it just write: gotoxy 2,4

edited Nov 26 '20 at 01:41

answered Nov 26 '20 at 01:35

Sergio Alemàn

1
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assembly 8086 cursor placement

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