Hi, I was using C++ to try to write objects to the screen, and decided to try this in a lower level language. I have searched the web and found some sample code:
name "vga"
; this program draws a tiny rectangle in vga mode.
org 100h
jmp code
; dimensions of the rectangle:
; width: 10 pixels
; height: 5 pixels
w equ 10
h equ 5
; set video mode 13h - 320x200
code: mov ah, 0
mov al, 13h
int 10h
; draw upper line:
mov cx, 100+w ; column
mov dx, 20 ; row
mov al, 15 ; white
u1: mov ah, 0ch ; put pixel
int 10h
dec cx
cmp cx, 100
jae u1
; draw bottom line:
mov cx, 100+w ; column
mov dx, 20+h ; row
mov al, 15 ; white
u2: mov ah, 0ch ; put pixel
int 10h
dec cx
cmp cx, 100
ja u2
; draw left line:
mov cx, 100 ; column
mov dx, 20+h ; row
mov al, 15 ; white
u3: mov ah, 0ch ; put pixel
int 10h
dec dx
cmp dx, 20
ja u3
; draw right line:
mov cx, 100+w ; column
mov dx, 20+h ; row
mov al, 15 ; white
u4: mov ah, 0ch ; put pixel
int 10h
dec dx
cmp dx, 20
ja u4
; pause the screen for dos compatibility:
;wait for keypress
mov ah,00
int 16h
; return to text mode:
mov ah,00
mov al,03 ;text mode 3
int 10h
retAgain, I did not write this, I found it at http://www.emu8086.com/dr/asm2html/assembler_source_code/0_sample_vga_graphics.asm.html
My question is how would I go about compiling said code?
