TASM PROGRAMMING BASICS

[@michellekennedy784]

"Promosm"

[@maxmuster7003]

Using debug with a batch file to print colored text center align.
Start from DosBox prompt with parameter attached:
C:\>CENTER.BAT 8 1b "Hello World!"
@echo off
REM CENTER.BAT
REM Need three parameter (%1 %2 %3) attached.
REM Usage: CENTER.BAT row color "TEXT"
echo acs:100>tmp.deb
echo mov ax,B800>>tmp.deb
echo mov es,ax>>tmp.deb
echo mov di,%1>>tmp.deb
echo mov bx,%1>>tmp.deb
echo shl di,7>>tmp.deb
echo shl bx,5>>tmp.deb
echo add di,bx>>tmp.deb
echo cld>>tmp.deb
echo mov si,140>>tmp.deb
echo lodsb>>tmp.deb
echo cmp al,FF>>tmp.deb
echo jnz 0117>>tmp.deb
echo sub si,141>>tmp.deb
echo mov bx,50>>tmp.deb
echo mov cx,si>>tmp.deb
echo sub bx,si>>tmp.deb
echo shr bx,1>>tmp.deb
echo shl bx,1>>tmp.deb
echo add di,bx>>tmp.deb
echo mov ah,%2>>tmp.deb
echo mov si,140>>tmp.deb
echo lodsb>>tmp.deb
echo stosw>>tmp.deb
echo dec cx>>tmp.deb
echo jnz 0132>>tmp.deb
echo ret>>tmp.deb
echo org 140>>tmp.deb
echo DB "%3", FF>>tmp.deb
echo.>>tmp.deb
echo n CENTER.COM>>tmp.deb
echo rcx>>tmp.deb
echo 90>>tmp.deb
echo wcs:100>>tmp.deb
echo q>>tmp.deb
debugnul
del tmp.deb
CENTER.COM
del CENTER.COM