Video memory

[abdul]

I want to print the text directly to the video memory. So what I need is es:di where di points to the offset of the video memory where I want to print the character. How's is it organized? Is it some sort of linear address? How would I calculate the address if I know the column and the row number I want to print on?

[Daok]

I do not know if it's exacly what you want but here is one part of a code for video that I found in a old asm project for school that I have made.

PTAMPON PROC
        PUSH    AX
        PUSH    CX
        PUSH    DI
	MOV 	SI, 0
        MOV     AX, 0B800h
        MOV     ES, AX
        MOV     AL, BYTE PTR TAMPON[SI]            ; string to show here!!!!        
MOV     AH, 0f3h            ; color here!!!!
        MOV     DI, 1940d          ; x_yposition here!!!!!

Encore:	INC SI
        MOV     WORD PTR[ES]: DI, AX ; copie dans l'‚cran vid‚o
        INC     DI                 ; next char
        INC     DI ;Next char
	
	MOV     AL, BYTE PTR TAMPON[SI] 
        CMP	AL, '$'     	   ; end?
        JNE     Encore             ; not = redo


FINTAMPON:

        POP     DI
        POP     CX
        POP     AX
	RET
ENDP

[markman]

look at simple OS's like linux 0.1 and check out the forums at www.mega-tokyo.com/forum/

[abdul]

Thanks...figured out...