Changin Text Color

[sdTech]

Hi.

I want to change the text color...Appriciate any help from you guys


Thanks

 

[Oak]

Hi,

the service 09h of the interrupt 10h can change color.

MOV AH,09 ; FUNCTION 9
MOV AL,03 ; HEART ASCII
MOV BX,0004 ; PAGE 0, COLOR 4
MOV CX,07D0 ; 2000 CARACTERS
INT 10H ; INTERRUPT 10 -> BIOS
INT 20H ; END

Enjoy. ;-)

 

[sdTech]

Thanks Oak

It works but the cursor is not advanced...the first character got overdrived(I want to highline a number in an array). I try to used

mov ah, oeh

It displayed the number, but i lost the color

Hope to here from you

Thanks

 

[Oak]

Well, I guess I've got your answer.
In the previously sent program, the BX register is used to set the video page and set the color of the caracter.
BH <- Page
BL <- Color

This text page allows 16 colors -> 00H to 0FH. So what about those extra 4 bites? (That is where you're supposed to get extasic) ;-)

In fact, the first 4 bites are used to set the background color, and the last 4 others, the forecolor.

MOV BL,0EH ; Background = Black, Foreground = Yellow
MOV BL,1EH ; Background = Blue, Foreground = Yellow

Don't forget to put the H to indicate that you're using hex numbers.

Hope it will help!