FF> I don't have an answer to your question, but a question in return.. I
FF> know almost nothing about assembler, but would like to know how to put a
FF> character on the screen with ASM. I reckon that would be a lot faster
FF> than the TextColor; GotoXY; Write; sequence i'm using now... Since it
FF> looks like this is just what you're doing, could you give me the asm
FF> code that i can put into my pascal program?
 
You can output a character to the screen, controlling the background and
foreground colors with int 10h, funtion 9.  Example:
 
   mov ah,9
   mov al,'A'
   mov bh,0            ;text page number, usually 0
   mov bl,0eh          ;bg and fg color attributes
   mov cx,1            ;print character just once
   int 10h
 
The background and foreground colors are coded as hex digits, and
16*bg+fg is the number inserted into dl.  The code above will
output a yellow A on a black background at the cursor position,
but will not advance the cursor.  To do that you need more code:
 
   mov ah,3            ;read cursor
   mov bh,0            ;
   int 10h             ;cursor position returned in dx: row,col = dh,dl
 
   mov ah,2            ;
   inc dl              ;
   int 10h             ;positions the cursor at row,col = dh,dl
 
 
 
 
 
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