vizskywalker 0 Report post Posted March 28, 2005 For months now I have been trying t o do assembly programming in SVGA. I am doing 16 bit assembly, not 32 bit , so I do not have an API to use. I have been to the VESA page and downloaded their standards. But when entering a lot of the video modes, The screen goes into power saving mode. Any help on resolving this issue would be helpful. And it is a problem with every computer I try it on, so it is not a hardware problem. Share this post Link to post Share on other sites
zomo 0 Report post Posted August 20, 2005 No need to use their standards, just use interrupt 10h to do that, I show you how to program VESA 1.2 because VESA 2.0 is protected mode programing.1. You need to gather information about requested graphics mode,2. you must initialize that mode,3. switch bank, if needed (in VESA you have access to memory across bank)4. drawI give you some code in Pascal/Assembler: TModeInfo = Record ModeAttributes :Word; WinAAttributes :Byte; WinBAttributes :Byte; WinGranularity :Word; WinSize :Word; WinASegment :Word; WinBSegment :Word; BankSwitch :Pointer; BytesPerScanLine :Word; XResolution :Word; YResolution :Word; Reserved :Array[0..233] of Byte; End;Var ActualBank :Word; BankSwitch :Pointer;{/--------------------------------------------------------------------------- Name: GetModeInfo(Mode: Integer; ModeInfo: TModeInfo) Desc: Exp.: GetModeInfo($114,ModeInfo); $114 = 800x600 (64K Colors)/---------------------------------------------------------------------------}Procedure GetModeInfo(Mode: Integer; ModeInfo: TModeInfo); Assembler;Asm push es push di push cx les di, ModeInfo mov cx, Mode mov ax, 4F01h int 10h mov ax, word ptr es:[di+0].(TModeInfo).BankSwitch mov word ptr [BankSwitch+0], ax mov ax, word ptr es:[di+2].(TModeInfo).BankSwitch mov word ptr [BankSwitch+2], ax pop cx pop di pop esEnd; { GetModeInfo }{/--------------------------------------------------------------------------- Name: SetVesaMode(Mode: Integer) Desc: Exp.: SetVesaMode($114);/---------------------------------------------------------------------------}Procedure SetVesaMode(Mode: Integer); Assembler;Asm push bx mov bx, Mode mov ax, 4F02h int 10h pop bxEnd; { SetVesaMode }This is pure assembler procedure, in Pascal you need write their prototype.;/---------------------------------------------------------------------------; Name: Vesa_PutPixel_800x600x64; Desc:;/---------------------------------------------------------------------------Vesa_PutPixel_800x600x64 PROC FAR USES ebx ecx edx esi edi es, \ x :DWORD, y :DWORD, r :BYTE, g :BYTE, b :BYTE mov eax, y mov ebx, eax mov edx, eax shl eax, 10 shl ebx, 9 shl edx, 6 add eax, ebx add eax, edx mov ecx, x shl ecx, 1 add eax, ecx mov esi, eax shr esi, 16 mov cx, si mov ebx, esi shl ebx, 16 sub eax, ebx mov di, ax mov ax, ActualBank cmp ax, cx je @@1 xor bx, bx mov dx, cx call dword ptr [BankSwitch]@@1: mov ax, 0A000h mov es, ax mov si, di mov al, r shl ax, 6 add al, g shl ax, 5 add al, b mov word ptr es:[si], ax mov ActualBank, cxRETVesa_PutPixel_800x600x64 ENDP Share this post Link to post Share on other sites
iGuest 3 Report post Posted August 11, 2010 Difficulty?VESA ProgrammingReplying to zomoIs it possible to put this completely in assembly code without any PASCAL defines. (or at least a simple executable - ie a working example).Most people experience the same problem when using VESA modes. By changing the resolutionThe image squashes into the top area of the screen. What most people want to know is how to move a pixel about by changing the x y values only, and having the pixel respond accordingly on the screen, in the different resolution modes, with simplicity and control.-question by DENE Share this post Link to post Share on other sites
iGuest 3 Report post Posted December 7, 2010 VESA ProgrammingVESA Programming The first step is to look into the modetable using VBE function 0 if there is a corresponding mode number aviable. To check the resolution of that numbers we have to use VBE function 1. Here is a small aplication for to assemble with MASM 5: .MODEL SMALL ; Programm möglichst klein halten.386 CODE SEGMENT use16 'CODE' assume cs:CODE,ds:DATEN,ss:STAPEL org 100hSTART: mov ax, DATEN ; Segmentadresse vom Datenbereich mov ds, ax ; in das DS-Segmentregister laden mov es, ax ; in das ES-Segmentregister laden mov di, OFFSET VINF ; Zeiger auf ausgewählten Datenbereich (512 Bytes) mov ax, 4F00h ; Vesa Funktionsnummer 0 int 10h ; Vesa-Bios-Analyse holt 512 Bytes nach es:di (Datensegment:VINF) cmp ax, 4Fh ; Wenn Rückgabewert "4F" dann war Funktion erfolgreich jnz NOVESA ; sonst FEHLER: Kein Vesabios vorhanden mov dl, [di+5] ; Major version number of Vesa über ds:di+5 in das dl-Register holen cmp dl, 2 ; kleiner als Version 2 ? jb VESA1 ; wenn ja FEHLER: Keine Modeliste vorhanden.;-------------------------------------- lfs si, [di+0Eh] ; Pointer der Modeliste über ds:di+E ins fs-Segmentregister und si-Offsetregister ladenMODE: mov cx, fs:[si] ; Modenummern über fs:si ins cx-register holen lea si, [si+2] ; Qell-Adresszeiger(Offset) erhöhen cmp cx, 0FFFFh ; Ende der Liste erreicht? jnz MEND xor eax, eax mov ax, cx call HEXOUT ; Vesamode ausgeben mov ax, 4F01h ; Modus spezifische Info holen mov di, OFFSET MINF int 10h ; es:di 256 byte cmp ax, 4Fh jnz NOVESA ; FEHLER: wird nicht unterstützt mov ax, [di+12h] ; MaxX call DEZOUT mov ax, [di+14h] ; MaxY call DEZOUT xor eax, eax mov al, [di+19h] ; Bit per pixel? call DEZOUT and BYTE PTR[di], 80h ; linear access enable ? jz short NOLIN mov eax, [di+28h] ; linearer Bild-Offset vorhanden ? call HEXOUTNOLIN: jmp MODE;------------------------------------- org START + ((($-START)/16)*16)+16 ; Code-Ausrichtung;-------------------------------------VESA1: mov cl, 1 jmp ERREND;------------------------------------- org START + ((($-START)/16)*16)+16 ; Code-Ausrichtung;-------------------------------------NOVESA: mov cl, 0FFh jmp ERREND;------------------------------------- org START + ((($-START)/16)*16)+16 ; Code-Ausrichtung;-------------------------------------MEND: xor cl, clERREND: mov al, cl ; ERRORLEVEL holen mov ah, 4Ch ; Rücksprung, Programm-Ende int 21h:----------------------------------------------------------------------------; EAX nach zehn dezimalen ASCII's wandeln und I'm Daten-Bereich ablegen:---------------------------------------------------------------------------- org START + ((($-START)/16)*16)+16 ; Code-Ausrichtung;-------------------------------------DEZOUT: pusha mov di, OFFSET ASCII mov cl, 0Ah ; Zehn dezimale ASCII's mov ebx, 1000000000WANDEL: xor edx, edx div ebx add al, 30h ; nach ASCII wandeln mov esi, edx ; Rest retten mov [di], al ; Ziffer retten inc di ; Zeiger erhöhen mov eax, ebx mov ebx, 0Ah xor edx, edx div ebx mov ebx, eax mov eax, esi dec cl jnz WANDEL;-------------------------------------GEBAUS: mov si, OFFSET ASCII-1 ; erste(and) Null(en) überlesen mov dx, si inc dxNULL: inc si cmp BYTE PTR[si], "0" jz NULL sub si, 0Ah cmp si, dx jz short AUSG ; keine null vorhanden ! add si, 0Ah mov dx, siAUSG: mov ah, 9 ; dezimale Zahl ausgeben int 21h popa ret:----------------------------------------------------------------------------; EAX nach acht hexadezimale ASCII's wandeln und I'm Daten-Bereich ablegen:---------------------------------------------------------------------------- org START + ((($-START)/16)*16)+16 ; Code-Ausrichtung;-------------------------------------HEXOUT: pusha mov di, OFFSET ASCII ; Doppel-Word nach Hex-Ziffern wandeln mov cl, 8 ; 8 ZiffernA: rol eax, 4 ; 1 Nibble weiter mov bl, al and bl, 0Fh ; nur low-Nibble add bl, 30h ; nach ASCII wandeln cmp bl, 39h ; größer als Ziffer neun ? jna short B add bl, 7 ; dann Buchstabe von "A" bis "F"B: mov [di], bl ; ASCII retten inc di ; Zeiger erhöhen dec cl ; Ziffer-Anzahl verringern jnz A jmp GEBAUS CODE ends:---------------------------------------------------------------------------- DATEN SEGMENT use32 'DATA';-------------------------------------VINF DB 512 dup (0AAh) ; Vesa-Info(4F00)MINF DB 256 dup (44h) ; Mode-Info(4F01)ASCII DB "0000000000", "$" DATEN ends:---------------------------------------------------------------------------- STAPEL SEGMENT use16 STACK 'STACK' DB 30h dup (88h) STAPEL ends endFor more details have a look into the "vbe3.Pdf" which can be free download from "vesa.Org" (registration and login), or simple mail me to: freecrac at web.De Dirk -reply by Dirk Wolfgang Glomp Share this post Link to post Share on other sites
Dirk Wolfgang Glomp 0 Report post Posted December 19, 2010 (edited) VESA Programming This pure 16 Bit DOS aplication below demonstrate how to use a vesamode with a resolution of 1024 x 768 x 32 with an own refreshrate of 100hz and additionaly it demonstrate how to use the linear framebuffer with hardware triple buffering. To enable an access to the linear framebuffer i prefer the unrealmode/bigrealmode. For to use the unrealmode/bigrealmode we have to remove/REM any memmory manager like emm386.exe in our config.sys before. After rebooting without it we can start the aplication. Goal of the aplication: If the application starts without any error message, then the application switch into the vesamode and begin to move some balls across the screen and if they reached a border of the screen, then they turn their direction. For to terminate the application and to switch back to DOS in the textmode(3) please press any key on your keyboard. Minimum system requirements: Operating system: DOS 5, 6, or DOS 7 (a part of Windows98/ME) // Not working under Windows(DOSbox) and not working with a memmory manager like emm386.exe. MMX-CPU (tested on AMD Palomino 1800+@1550mhz and on AMD Tbred 2700+@2100mhz; Socket A mainboard with AGP) Fully working vesa 3 Bios (tested on MSI NVIDIA Geforce 4 TI 4200 64MB AGPx4 // failed with Powercolor ATI x800 pro(VBE3 256MB AGPx8)) CRT-Monitor with DDC and 96 khz (tested on 19" Samsung 940 and on 19" SAMTRON 96P) Used public documents from vesa.org(register and/or login): EEDIDguideV1.pdf vbe3.pdf ... Sorry, because i reached the limit for to post here i have to split the source-Code in two or tree parts looking forward to my next post. But all lines of the source must be in one file for to assemble it. So you have to merge it together. This is the first part of the source-code: ;--------------------------------------------------------------------------------------------------------------; I have written this sourcecode for MASM 5.; Example for to generate a 16 bit executable for a pure DOS-enviroment:; MASM /Z FILENAME.asm,FILENAME.obj,,; LINK /CP:1 FILENAME.obj,FILENAME.exe,,,;--------------------------------------------; Legal situation: No personalised spiritual ownership or liquidication rights for usement,; or for spreading out aviable, because all ideas are (at all hazards) only a small part of the; heritage of our common human culture and nobody can progress an idea without to make a use; of our all intergenerational relationships beginning from our roots thousands of years ago.;--------------------------------------------; Freeware and a wide-ranging transparency in the world helps a lot for to establish a social freedom and a gracefull living.; But additional We have to act very soon for to feed all humans and to stop the immiseration in the world.; Over one billion of humans are very hungry today, yesterday, the day before yesterday............; They all will die very painfully, if we can´t stop that with the highest ermergency now.;---------------------------------------------------------------------------------------------------------------.MODEL SMALL ; We want a small aplication.386P ; Enable protectmode instructions.387 ; Enable FPU instructions;-------------------------------------- MaxX = 1024 ; Horizontal resolution of the requested vesamode MaxY = 768 ; Vertical resolution MAXHZ = 160 ; CRT-Monitor: HZ MAXKHZ = 96 ; KHZ KreiFa = 00FFDD00h ; Circel Color Vring = 00030400h ; Color decrement Groesse = 02Dh ; Radius of the ball (2Dh) XPos = Groesse ; Position of the ball YPos = Groesse Anzahl = 35h ; Number of Objects (max.255) HFarb = 0; 0100A03h ; Background Color Max_X = (MaxX-(XPos*2))-9; Max and min Max_Y = MaxY-(YPos*2) ; X/Y Position Min_X = 9 ; of the movement area Min_Y = 9 IRQs_Port = 21h ; Port-Adress: IRQ-Controller Tast_Port = 60h ; Port-Adress: Keyboard-Controller Stat_Port = 64h ; Port-Adress: Keyboard-Status Cmos_Port = 70h ; Port-Adress: Bios-Cmos-Chip Cr = 0Dh ; Carriage Return Lf = 0Ah ; Line Feed Ausri = 16 ; Bytes for code alignment;---------------------------------------------------------------------------- CODE SEGMENT use16 'CODE' assume cs:CODE,ds:DATEN,ss:STAPEL org 100h;--------------------------------------START: mov eax, 1 ; Request for feature flags DB 0Fh, 0A2h ; CPUID instruction test edx, 00800000h ; is MMX feature flag(bit 23) set? jz NOMMX mov ax, DATEN ; Store relative Segmentadress of the Datasegment mov ds, ax ; into DS-Segmentregister mov es, ax ; into ES-Segmentregister mov di, OFFSET VINF ; Buffer(512 Bytes) for VESA-Info mov ax, 4F00h ; Function 0 int 10h ; Get up to 512 Bytes es:di (Datasegment:VINF) cmp ax, 4Fh ; succsesfull ? jnz NOVESA ; else error: no Vesabios aviable cmp Byte PTR[di+5], 3 ; Compare major version number of Vesa jb NOVESA3 ; lesser than Version 3 ? lfs si, [di+0Eh] ; Get pointer of Modelist in FS:SIMODE: mov cx, fs:[si] ; Get Modenumber lea si, [si+2] ; Instead of "add si,2" (increase Offset of modelist) cmp cx, 0FFFFh ; End of list ? jnz NOMODE add cx, 4000h + 800h ; VESAnumber + linear + CRTC mov ax, 4F01h ; Get Mode Info mov di, OFFSET MINF ; Buffer(256 Bytes) for Mode Info int 10h cmp ax, 4Fh jnz NOVESA cmp Word PTR[di+12h], MaxX jnz MODE cmp Word PTR[di+14h], MaxY jnz MODE cmp BYTE PTR[di+19h],20h; 32 Bits per pixel? jnz MODE and BYTE PTR[di], 80h ; Linear access enable ? jz NOLIN mov eax,[di+28h] and eax, eax ; Check if the linear Offset to the framebuffer is aviable ? jz NOLIN mov bp, cx ; Store the modenumber;-------------------------------------- mov ax, 4F0Bh ; Get/set Pixel-Clock mov dx, cx xor bl, bl ; Get mov ecx, DWORD PTR[PIXCLOC] int 10h cmp ax, 4Fh jnz NOCLOC ; Error: No pixelcloc mov DWORD PTR[PIXCLOC], ecx;-------------------------- xor eax, eax ; Calculate Refreshrate mov ax, [CRTC] ; Horizontal Total xor ebx, ebx mov bx, [VERTOTA] ; Vertikal Total mul ebx mov ebx, eax mov eax, ecx ; Pixelcloc mov esi, 10 xor edx, edx div esi xor edx, edx div ebx mov [REFRATE], ax ; RefreshRate=Pixelcloc/(HTotal*Vtotal);-------------------------------------- mov ax, 4F15h ; DDC - INSTALLATION CHECK mov bl, 0 ; for to get the monitor information int 10h cmp ax, 4Fh jnz NODDC mov ax, 4F15h ; DDC - READ EDID mov bl, 1 xor cx, cx xor dx, dx mov di, OFFSET EDID int 10h mov eax, 0FD000000h ; Text-identifier V/H range mov bx, 36h cmp [di+bx], eax ; di+36h detailed timing #1 jz short H1 add bx, 12h cmp [di+bx], eax ; di+48h detailed timing #2 jz short H1 add bx, 12h cmp [di+bx], eax ; di+5Ah detailed timing #3 jz short H1 add bx, 12h cmp [di+bx], eax ; di+6Ch detailed timing #4 jnz NODDCH1: cmp BYTE PTR[di+bx+6], MAXHZ jb NOHZ cmp BYTE PTR[di+bx+8], MAXKHZ jb NOKHZ;-------------------------------------- mov ax, 4F02h ; Switch to the requested vesamode mov bx, bp ; with an access to the linear framebuffer mov di, OFFSET CRTC ; and with an own Video-Timing(..refreshrate) int 10h cmp ax, 4Fh jnz NOMODE ; ERROR: No Vesamode;-----------------Switch to the unrealmode---------------------------------- cli ; Dissable software-Interrupts mov al, 2 ; Dissable IRQ 1 out IRQs_Port, al in al, Cmos_Port ; Dissable Non-Mask-Interrupts(NMIs) or al, 80h out Cmos_Port, al call ESEG ; Switch to the Unrealmode(Enhance segment) mov ax, DATEN mov ds, ax in al, Cmos_Port ; Enable NMI's and al, 7Fh out Cmos_Port, al sti ; Enable Software-Interrupts;-----------------------------------------------------------------------------; Create an Offset table of startadresses of any line of the linear framebuffer;----------------------------------------------------------------------------- call PIXOFF ; ...placed in the beginning of the data segment;---------------------------------------------------------------------------- finit ; Paint a ball mov DWORD PTR[XM], XPos mov DWORD PTR[YM], YPos mov DWORD PTR[COL], KreiFa mov ecx, 1 ; RadiusRUND: call KREIS ; Root-Circle lea ecx, [ecx+1] ; inc ecx sub DWORD PTR[COL], Vring; Color decreasing cmp ecx, Groesse jnz RUND;-------------------------------------- call TABELLE ; Create a sprite-table of any colored pixel of the the screen;-------------------------------------- mov si, OFFSET BALL ; Clear the screen from the ball xor eax, eax ; Color blackOBJLO: mov ebx, [si] ; Get the Offset lea si, [si+8] ; add si, 8 mov [ebx], eax ; To the screen cmp si, bp ; End of table ? jb OBJLO;-------------------------set all balls to the screen----------------------- mov si, OFFSET SX0 ; Offset of Position-Table mov di, OFFSET STEP0X ; Offset of Stepper-TableHIN: mov ebx, [si] ; Get X-Position mov eax, [di] ; Get X-Stepper mov ecx, [si+4] ; Get Y-Position mov edx, [di+4] ; Get Y-Stepper shl ebx, 2 ; X * 4 Byte (true color) shl eax, 2 ; X-Stepper * 4 Byte (true color) mov ecx, [ecx*4] ; Get line mov edx, [edx*4] ; Get Stepper-line sub ecx, DWORD PTR[PIXTAB]; Substract linear screen-Offset sub edx, DWORD PTR[PIXTAB]; Substract linear screen-Offset mov [si], ebx ; Write X back mov [si+4], ecx ; Write Y back as line lea si, [si+8] ; add si,8 mov [di], eax ; Write back X-Stepper mov [di+4], edx ; Write back Y-Step as Step-line lea di, [di+8] ; add di,8 cmp si, Anzahl*8+OFFSET SX0 jb HIN;-------------------------------------- mov edx, DWORD PTR[PICAKT]; Get the actual adress of the framebuffer;-------------------------------------- mov bx, OFFSET HINFAR ; Background color DB 0Fh, 6Fh, 7 ; MOVQ mm0, [bx];---------------------------------------------------------------------------- DB 0EAh ; Clear Prefetch-buffer: DW (OFFSET ACTION) ; The following lines create DW (SEG ACTION) ; the opcode of "JMP FAR CS:ACTION";----------------------------------------------------------------------------; M A i N - R O U T I N E;---------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri; Code-Alignment;---------------------------------------------------------------------------ACTION: mov ebx, edx ; Movement and checking if a ball mov ecx, DWORD PTR[PICLEN]; reached a border mov si, OFFSET SX0 ; Offset of Position-Table mov di, OFFSET STEP0X ; Offset of Stepper-Table add ebx, DWORD PTR[PIXTAB] shr ecx, 3 ; Beginning with to clear the screenCLEAN: DB 67h, 0Fh, 7Fh, 3 ; MOVQ [ebx], mm0 lea ebx, [ebx+8] ; add bx,8 dec ecx jnz CLEAN;----------------------------------------------------------------------------ALL: mov ebx, [si] ; Get X-Position cmp BYTE PTR[di+S_Len], 1 ; Compare Plus/Minus-XFlag jz short FRAGX1 ; if minus, then jumpFRAGX0: cmp ebx, Max_X * 4 ; Compare X-Position with max.-X jb short MAKEX0 ; if less, then jump mov BYTE PTR[di+S_Len], 1 ; Set Minus-XFlagMAKEX1: sub ebx, [di] ; X - XStepper jmp short ALLX;-------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;--------------------------------------FRAGX1: cmp ebx, Min_X * 4 ; Compare X-Position with min.-X ja short MAKEX1 ; if above, the jump mov BYTE PTR[di+S_Len], 0 ; Set Plus-XFlagMAKEX0: add ebx, [di] ; X + XStepper ALLX: mov [si], ebx ; save X-Position;---------------------------------------------------------------------------- mov ecx, [si+4] ; Get line cmp BYTE PTR[di+S_Len+1],1; Compare Plus/Minus-line-Flag jz short FRAGY1 ; if minus, then jumpFRAGY0: cmp ecx, Max_Y * (MaxX*4); Compare line with max.line jb short MAKEY0 ; if lesser, then jump mov BYTE PTR[di+S_Len+1],1; Set Minus-lineflagMAKEY1: sub ecx, [di+4] ; Line - linestepper jmp short ALLY;-------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;--------------------------------------FRAGY1: cmp ecx, Min_Y * (MaxX*4); Compare line with min.line ja short MAKEY1 ; if above, then jump mov BYTE PTR[di+S_Len+1],0; Plus-YFlag setzenMAKEY0: add ecx, [di+4] ; Line + linestepper ALLY: mov [si+4], ecx ; Save new line lea si, [si+8] ; Increase Table-Offset (Position) add ecx, ebx ; Line plus X mov [RETTSI], si mov si, OFFSET BALL ; Table-Offset start add ecx, edxOBJECT: mov ebx, [si] ; Get Sprite-Offset from Table mov eax, [si+4] ; Get color from Table lea si, [si+8] ; Increase Tablen-Offset mov [ebx+ecx], eax ; Color to the screen cmp si, bp ; End of Table ? jb OBJECT mov si, [RETTSI] lea di, [di+8] ; Increase Table-Offset (Stepper) cmp si, Anzahl*8+OFFSET SX0; Table-End ? jb ALL;--------------switch the screen adress using triple buffering------------ cmp BYTE PTR[FLAG], 0 jz short ASUKBSUK: mov ecx, edx ; Display-Start-Adress mov bx, 4 ; Wait until Display shedule mov ax, 4F07h int 10h and cx, cx jnz BSUK;--------------------------------------ASUK: mov ecx, edx ; Display-Start-Adress add edx, DWORD PTR[PICLEN]; Get new Adress mov bx, 2 ; Shedule new Display-Start-Adress mov ax, 4F07h int 10h mov BYTE PTR[FLAG], 1 cmp edx, DWORD PTR[PICMAX] jna short NODO xor edx, edx;---------------------------------------------------------------------------NODO: in al, Stat_Port ; Get Keyboad-Status test al, 1 ; Input buffer empty? jz ACTION ; else repeat movement test al, 20h jnz ACTION ; PS2-Mouse will be ignored;----------------------------------------------------------------------------;-----------------------End of main-routine----------------------------------;---------------------------------------------------------------------------- in al, Tast_Port ; Get key cli xor al, al ; IRQ 1 freigeben out IRQs_Port, al sti mov ax, 3 ; Text-Mode int 10h xor cl, cl ; No ERROR mov ah, 1 ; Clear Keyboard buffer int 16h;------------------------------------- DB 0Fh, 0Eh ; 0Fh, 77h EMMS // 0Fh, 0Eh FEMMS;-------------------------------------HOME: mov al, cl ; Get the ERRORLEVEL mov ah, 4Ch ; Jump back to DOS int 21h;----------------------------------------------------------------------------; ERROR Messages;---------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;---------------------------------------------------------------------------NOMODE: mov cl, 1 mov dx, OFFSET ERTEX1 ; NO VESA MODEERROUT: mov ah, 9 ; Text ausgeben int 21h jmp HOME;---------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;---------------------------------------------------------------------------NOLIN: mov cl, 2 mov dx, OFFSET ERTEX2 ; No linear Offset jmp ERROUT;---------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;---------------------------------------------------------------------------NOMMX: mov cl, 3 mov dx, OFFSET ERTEX3 ; No MMX-CPU jmp ERROUT;--------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;---------------------------------------------------------------------------NOVESA: mov cl, 4 mov dx, OFFSET ERTEX4 ; No Vesa jmp ERROUT;--------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;---------------------------------------------------------------------------NOVESA3: mov cl, 5 mov dx, OFFSET ERTEX5 ; No VESA 3 jmp ERROUT;--------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;---------------------------------------------------------------------------NODDC: mov cl, 6 mov dx, OFFSET ERTEX6 ; No DDC jmp ERROUT;--------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;---------------------------------------------------------------------------NOKHZ: mov cl, 7 mov dx, OFFSET ERTEX7 ; Less than 96 khz jmp ERROUT;--------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;---------------------------------------------------------------------------NOHZ: mov cl, 8 mov dx, OFFSET ERTEX8 ; Less than 160 hz jmp ERROUT;--------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;---------------------------------------------------------------------------NOCLOC: mov cl, 9 mov dx, OFFSET ERTEX9 ; No Pixelcloc jmp ERROUT;----------------------------------------------------------------------------; GDT for the Protected Mode;---------------------------------------------------------------------------- org START + ((($-START)/64)*64)+64;----------------------------------------------------------------------------GDTZEIGER DW ? ; Lenght of the GDT DW ? ; Adress low -Word:SEGMENTE DW ? ; Adress high-Word:SEGMENTE DW 0 ; reservedSEGMENTE DW 0 ; Bits: 0-15 Seg.lenght(Bit0-15) DW 0 ; Bits: 0-15 Basis-Adress Deskriptor-Table DB 0 ; Bits:16-23 Basis-Adress Deskriptor-Table DB 0 ; Bits: 0- 7 Access rights DB 0 ; Bits: 0- 3 Seg.lenght(Bit16-19)/Bit7:1=4KByte/0=1Byte DB 0 ; Bits:24-31 Basis-Adress Deskriptor-Table;-------------------------------------------- Selektor Segmente DW 0FFFFh; Segmentlenght Bits: 0-15 -------- ----------- DW 0 ; Adress low Bits: 0-15 ¦ 08h ¦ ¦Code (CS)¦ DB 0 ; Adress high Bits:16-23 +------+ +---------+ DB 9Ah ; Access rights DB 0 ; Seg.Länge Bits:16-19 im Bit0-3 /Bit7:1=4KByte/0=1Byte DB 0 ; Seg.Adress Bits:24-31;--------------------------------------------- Selektor Segmente DW 0FFFFh; Segmentlenght Bits: 0-15 -------- ------------ DW 0 ; Adress low Bits: 0-15 ¦ 10h ¦ ¦Stack (SS)¦ DB 0 ; Adress high Bits:16-23 +------+ +----------+ DB 92h ; Access rights DB 0 ; Seg.Lenght Bits:16-19 im Bit0-3 /Bit7:1=4KByte/0=1Byte DB 0 ; Seg.Adress Bits:24-31;--------------------------------------------- Selektor Segmente DW 0FFFFh; Segmentlenght Bits: 0-15 -------- --------------- DW 0 ; Seg.Adress Bits: 0-15 ¦ 18h ¦ ¦(DS,ES,FS,GS)¦ DB 0 ; Seg.Adress Bits:16-23 +------+ +-------------+ DB 92h ; Access rights DB 0FFh ; Seg.Lenght Bits:16-19 im Bit0-3//Bit7:1=4KByte/0=1Byte DB 0FFh ; Seg.Adress Bits:24-31;--------------------------------------------------- SEGMENTE_END label WORD Gdt_Groesse equ (OFFSET SEGMENTE_END - SEGMENTE -1);----------------------------------------------------------------------------;----------------------------Subroutines-------------------------------------;----------------------------------------------------------------------------; Set for the DS(,ES,FS,GS)-Register a new segmentlenght of 00FFFFFFh.; For that we switch into the Protected Mode und back to the (Un)Realmode.;---------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;----------------------------------------------------------------------------ESEG: xor eax, eax mov ax, cs mov ds, ax shl eax, 4 ; EAX is now physical mov ebx, eax ; Segmentstartadresse mov WORD PTR[SEGMENTE+0Ah], ax ; into the Deskriptors mov WORD PTR[SEGMENTE+12h], ax ; for CS ror eax, 10h ; and SS store into mov BYTE PTR[SEGMENTE+0Ch], al ; the GDT mov BYTE PTR[SEGMENTE+14h], al xor eax, eax ; EAX null mov ax, OFFSET SEGMENTE ; 16-Bit-Offset add ebx, eax ; GDT-Adress in mov WORD PTR[GDTZEIGER], Gdt_Groesse; GDT-Deskriptor mov DWORD PTR[GDTZEIGER+2], ebx pushf ; Save Flags lgdt FWORD PTR[GDTZEIGER] ; Load GDT mov dx, ss ; Save SS mov eax, cr0 ; Controlword 0 to EAX or al, 1 ; Protected Mode on mov cr0, eax ; clear Prefetch-Buffer DB 0EAh ; The following lines DW (OFFSET PMODE) ; create the opcode for: DW 8 ; "JMP FAR CS:PMODE";------------------------------------------------ org START + ((($-START)/Ausri)*Ausri)+Ausri;------------------------------------------------PMODE: mov ax, 10h ; Limit SS-Selektor to 64KB mov ss, ax mov ax, 18h mov ds, ax ; Enhance DS(,ES,FS,GS)-Segment; mov es, ax ; to 4 GB; mov fs, ax; mov gs, ax mov eax, cr0 ; Controlword 0 to EAX and eax, not 1 ; Protected Mode off mov cr0, eax ; Clear Prefetch-Buffer DB 0EAh ; The following lines DW (OFFSET RMODE) ; create the opcode for:AKTSEG DW (SEG RMODE) ; JMP FAR CS:RMODE;------------------------------------------------ org START + ((($-START)/Ausri)*Ausri)+Ausri;------------------------------------------------RMODE: mov ss, dx ; restore SS popf ; get Flags;----------------------------------------------------------------------------; Swith the 21. Adressbit on.;----------------------------------------------------------------------------BIT_FREI: call W_8042 ;-->>----------+ Wait for 8042 jnz BACK ;->--------+ ¦ mov al, 0D1h ; ¦ ¦ Write command out Stat_Port, al; ¦ ¦ call W_8042 ; -->>---Ï---¦ Ready to recieve ? jnz BACK ;->--------¦ ¦ mov al, 0DFh ; ¦ ¦ Yes, set line 20 on out Tast_Port, al; ¦ ¦;-------------------------------------------¦---¦---------------; Wait til the 8042 ¦ is ¦ ¦ ready.;-------------------------------------------¦---¦---------------W_8042: xor cx, cx ;<<--------Ï---+STATUS: in al, Stat_Port;<----+ ¦ Read Status and al, 2 ; ¦ ¦ Buffer full ? loopnz STATUS ;->---+ ¦ til no or timeoutBACK: ret ;<---------+;----------------------------------------------------------------------------; Spuare Root Circle (XM,YM,COL);---------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;----------------------------------------------------------------------------KREIS: mov eax, ecx mul eax ; Radius * Radius xor edi, edi ; Looping start mov esi, eax xor eax, eaxRUNDE: mov ebp, esi mul eax ; X * X sub ebp, eax ; R * R - X * X mov DWORD PTR[Y], ebp fild [Y] ; Load Integer to ST(0) fsqrt ; Spuare root fistp [Y] ; Integer save and pop mov ebp, DWORD PTR[Y] call HALB ; Set 4 Pixel mov eax, edi ; Switch X with Y mov edi, ebp mov ebp, eax ; Next Axes call HALB ; Set 4 Pixel lea ebp, [ebp+1] ; inc ebp / increase Loop-Counter mov edi, ebp ; Restore X cmp ecx, ebp ; Radiant reached ? jnz RUNDE ret;-------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;--------------------------------------HALB: mov edx, DWORD PTR[XM] ; Right below mov ebx, DWORD PTR[YM] add edx, edi ; X-Pos add ebx, ebp ; Y-Pos call PIXEL mov edx, DWORD PTR[XM] ; Left below mov ebx, DWORD PTR[YM] sub edx, edi ; X-Pos add ebx, ebp ; Y-Pos call PIXEL mov edx, DWORD PTR[XM] ; Right above mov ebx, DWORD PTR[YM] add edx, edi ; X-Pos sub ebx, ebp ; Y-Pos call PIXEL mov edx, DWORD PTR[XM] ; Left above mov ebx, DWORD PTR[YM] sub edx, edi ; X-Pos sub ebx, ebp ; Y-PosPIXEL: shl edx, 2 ; X *l 4 Byte (true color) add edx, [ebx*4] ; X plus line-Offset mov ebx, DWORD PTR[COL] mov [edx], ebx ; Color to the screen mov [edx+4], ebx ; and the pixel beside too ret;----------------------------------------------------------------------------; Create a Sprite-TABLE (Offset, Color) of the content of the screen;---------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;----------------------------------------------------------------------------TABELLE: mov eax, DWORD PTR[XMAX] xor esi, esi shr eax, 2 ; X divide by 4 Byte (32Bit true color) mov di, OFFSET BALL ; Table-Offset mov esi, [esi] ; linear screen-Offset mul DWORD PTR[YMAX] mov ecx, eaxMAKETAB: mov eax, [esi] ; Get the color of the pixel and eax, eax ; empty/black ? jz short LEER mov [di], esi ; Store Sprite-Offset in Table mov [di+4], eax ; Store Color in Table lea di, [di+8] ; Increase Table-Offset (add di,8)LEER: lea esi, [esi+4] ; Increase screen-Offset (add esi,4) dec ecx jnz MAKETAB mov bp, di ; End of table ret;----------------------------------------------------------------------------; Create an Offset table of startadresses of any horizontal line of the screen;---------------------------------------------------------------------------- org START + ((($-START)/Ausri)*Ausri)+Ausri;--------------------------------------PIXOFF: mov si, OFFSET MINF ; Get the Offset of Mode info xor ebx, ebx mov bx, ds ; Get the actual adress of the data segment mov eax, [si+28h] ; Get the 32 Bit adress of the linear frambuffer shl ebx, 4 ; Convert Data-Segment to a 32Bit-Offset xor di, di ; and substract it from the adress of the linear frambuffer sub eax, ebx ; = Adress of the first line is now "ds:Reg32" xor edx, edx mov dx, [si+32h] ; Get the lenght of a line (Xmax*BytejePixel) mov [XMAX], dx mov cx, [si+14h] ; Get Ymax mov [YMAX], cx shl cx, 2 ; Max_Y * 4 Byte (32Bit true color)AGAIN: mov [di], eax ; Store linear Offset of the framebuffer in the table lea di, [di+4] ; Increase Offset of table (add di,4) add eax, edx ; Add Max_X to the address cmp di, cx ; End of Table (Max_Y*4) ? jb AGAIN ret CODE ends Edited December 19, 2010 by Dirk Wolfgang Glomp (see edit history) Share this post Link to post Share on other sites
Dirk Wolfgang Glomp 0 Report post Posted December 19, 2010 (edited) VESA Programming This is the second part of the source-code(please merge it with the fist part) : ;----------------------------------------------------------------------------; D A T A - S e g m e n t;---------------------------------------------------------------------------- DATEN SEGMENT use32 'DATA' org 0;--------------------------------------PIXTAB DD MaxY+Ausri dup (0); Offset table of startadresses of any line of the screen(linear framebuffer);----------------------------------------------------------------------------; Position - Table;----------------------------------------------------------------------------SX0 DD 122, 197 ; X, Y DD 373, 347 DD 493, 276 DD 363, 143 DD 323, 316 DD 235, 192 DD 273, 226 DD 107, 226 DD 422, 373 DD 112, 347 DD 133, 266 DD 471, 343 DD 423, 366 DD 227, 230 DD 143, 157 DD 376, 322 DD 212, 101 DD 442, 226 DD 293, 129 DD 371, 123 DD 323, 325 DD 167, 292 DD 223, 172 DD 226, 145 DD 113, 222 DD 167, 166 DD 133, 134 DD 442, 292 DD 252, 270 DD 323, 350 DD 262, 374 DD 270, 151 DD 166, 213 DD 233, 154 DD 123, 222 DD 126, 274 DD 060, 257 DD 226, 313 DD 418, 177 DD 357, 153 DD 458, 270 DD 185, 035 DD 248, 113 DD 463, 366 DD 370, 132 DD 254, 267 DD 239, 134 DD 445, 262 DD 454, 334 DD 279, 257 DD 146, 323 DD 238, 267 DD 143, 134 DD 236, 377 DD 139, 334 DD 475, 258 DD 454, 154 DD 136, 337 DD 484, 253 DD 177, 266 DD 224, 143 DD 397, 127 DD 448, 345 DD 188, 123 DD 442, 332 DD 323, 176 DD 472, 123 DD 194, 379 DD 046, 124 DD 227, 111 DD 144, 124 DD 359, 165 DD 177, 246 DD 151, 342 DD 178, 168 DD 132, 149 DD 427, 236 DD 214, 013 DD 361, 345 DD 323, 176 DD 249, 336 DD 179, 144 DD 439, 123 DD 438, 347 DD 288, 248 DD 343, 158 DD 228, 346 DD 183, 253 DD 347, 288 DD 233, 235 DD 198, 286 DD 153, 147 DD 297, 273 DD 336, 231 DD 479, 150 DD 243, 287 DD 257, 165 DD 111, 122 DD 389, 258 DD 358, 285 DD 224, 127 DD 082, 122 DD 266, 311 DD 114, 351 DD 321, 275 DD 433, 159 DD 240, 154 DD 496, 160 DD 148, 038 DD 224, 369 DD 312, 134 DD 167, 126 DD 278, 173 DD 533, 436 DD 356, 291 DD 490, 352 DD 369, 111 DD 230, 134 DD 477, 177 DD 319, 443 DD 553, 399 DD 236, 266 DD 474, 130 DD 397, 127 DD 238, 169 DD 142, 186 DD 171, 383 DD 599, 138 DD 368, 437 DD 124, 424 DD 597, 259 DD 165, 197 DD 143, 270 DD 459, 349 DD 159, 459 DD 427, 427 DD 215, 135 DD 180, 180 DD 377, 377 DD 245, 145 DD 473, 173 DD 308, 408 DD 483, 283 DD 525, 125 DD 412, 312 DD 242, 142 DD 293, 293 DD 571, 371 DD 423, 323 DD 467, 267 DD 183, 283 DD 326, 126 DD 313, 413 DD 267, 267 DD 533, 133 DD 248, 188 DD 358, 458 DD 183, 383 DD 162, 162 DD 370, 170 DD 434, 134 DD 357, 157 DD 123, 123 DD 477, 167 DD 534, 134 DD 477, 177 DD 264, 124 DD 458, 138 DD 154, 244 DD 137, 237 DD 193, 353 DD 376, 276 DD 543, 443 DD 427, 227 DD 145, 345 DD 523, 123 DD 338, 158 DD 473, 425 DD 196, 283 DD 443, 394 DD 558, 343 DD 430, 134 DD 414, 362 DD 331, 185 DD 561, 232 DD 434, 321 DD 376, 255 DD 598, 388 DD 114, 145 DD 140, 243 DD 537, 189 DD 375, 434 DD 225, 257 DD 178, 283 DD 157, 125 DD 296, 158 DD 372, 435 DD 484, 192 DD 543, 134 DD 439, 212 DD 338, 166 DD 367, 288 DD 133, 143 DD 196, 313 DD 429, 124 DD 122, 448 DD 585, 127 DD 145, 173 DD 534, 134 DD 157, 157 DD 323, 323 DD 177, 167 DD 134, 134 DD 277, 177 DD 164, 134 DD 558, 358 DD 254, 154 DD 287, 137 DD 493, 153 DD 476, 376 DD 243, 143 DD 527, 127 DD 445, 245 DD 123, 223 DD 138, 258 DD 373, 225 DD 396, 383 DD 143, 194 DD 258, 443 DD 330, 134 DD 414, 262 DD 531, 185 DD 361, 132 DD 334, 121 DD 476, 155 DD 198, 288 DD 114, 145 DD 240, 343 DD 137, 389 DD 275, 134 DD 525, 157 DD 478, 183 DD 557, 325 DD 296, 258 DD 572, 135 DD 484, 192 DD 343, 134 DD 239, 212 DD 138, 266 DD 467, 388 DD 233, 143 DD 196, 313 DD 529, 174 DD 422, 148 DD 385, 157 DD 245, 173;---------------------------------------------------------------------------; Stepper - Table;---------------------------------------------------------------------------STEP0X DD 1, 1 ; Number of Pixel for movement in horizontal DD 1, 2 ; and vertical direction (Step X,Y) DD 2, 1 DD 2, 4 DD 3, 1 DD 6, 6 DD 7, 5 DD 8, 4 DD 9, 3 DD 2, 8 DD 1, 6 DD 5, 2 DD 1, 3 DD 2, 4 DD 3, 5 DD 4, 6 DD 8, 1 DD 1, 2 DD 8, 3 DD 1, 9 DD 9, 1 DD 2, 2 DD 2, 3 DD 2, 7 DD 6, 1 DD 8, 8 DD 3, 3 DD 7, 7 DD 4, 1 DD 2, 7 DD 4, 3 DD 4, 2 DD 1, 1 DD 1, 2 DD 1, 3 DD 2, 3 DD 2, 1 DD 2, 2 DD 2, 2 DD 2, 1 DD 3, 1 DD 6, 2 DD 3, 3 DD 3, 3 DD 4, 1 DD 2, 2 DD 4, 3 DD 4, 6 DD 1, 1 DD 1, 2 DD 1, 2 DD 1, 4 DD 2, 1 DD 2, 2 DD 3, 3 DD 2, 4 DD 3, 1 DD 3, 3 DD 3, 2 DD 3, 1 DD 4, 5 DD 2, 2 DD 4, 3 DD 1, 2 DD 3, 1 DD 1, 2 DD 1, 3 DD 2, 4 DD 2, 1 DD 2, 2 DD 2, 3 DD 2, 4 DD 3, 1 DD 3, 2 DD 3, 3 DD 3, 4 DD 4, 1 DD 3, 2 DD 4, 3 DD 2, 2 DD 1, 1 DD 1, 2 DD 1, 3 DD 1, 2 DD 2, 1 DD 1, 2 DD 2, 3 DD 2, 2 DD 1, 1 DD 3, 2 DD 3, 3 DD 1, 1 DD 2, 1 DD 3, 2 DD 1, 3 DD 1, 2 DD 1, 1 DD 1, 2 DD 1, 3 DD 1, 3 DD 3, 1 DD 2, 2 DD 2, 1 DD 2, 1 DD 5, 1 DD 3, 2 DD 3, 3 DD 3, 1 DD 3, 1 DD 3, 2 DD 2, 3 DD 4, 1 DD 1, 1 DD 1, 2 DD 1, 3 DD 3, 4 DD 2, 1 DD 1, 5 DD 2, 3 DD 2, 4 DD 3, 1 DD 3, 2 DD 1, 3 DD 2, 3 DD 3, 1 DD 1, 2 DD 1, 3 DD 2, 1 DD 1, 1 DD 1, 1 DD 1, 3 DD 1, 2 DD 2, 1 DD 2, 2 DD 2, 3 DD 2, 3 DD 1, 1 DD 3, 2 DD 3, 3 DD 3, 3 DD 1, 1 DD 4, 1 DD 4, 3 DD 4, 2 DD 3, 1 DD 1, 2 DD 1, 3 DD 1, 3 DD 2, 1 DD 2, 2 DD 5, 3 DD 2, 1 DD 3, 1 DD 3, 2 DD 3, 3 DD 5, 3 DD 4, 1 DD 5, 2 DD 4, 1 DD 1, 2 DD 1, 1 DD 1, 5 DD 1, 3 DD 1, 3 DD 2, 1 DD 2, 2 DD 5, 1 DD 1, 4 DD 1, 1 DD 5, 2 DD 3, 5 DD 3, 4 DD 4, 1 DD 1, 2 DD 4, 3 DD 3, 5 DD 1, 1 DD 1, 1 DD 3, 3 DD 1, 4 DD 2, 3 DD 2, 1 DD 2, 3 DD 2, 4 DD 3, 1 DD 3, 2 DD 5, 3 DD 3, 1 DD 1, 3 DD 3, 5 DD 4, 3 DD 1, 2 DD 1, 1 DD 1, 2 DD 1, 3 DD 1, 4 DD 2, 1 DD 5, 1 DD 2, 3 DD 3, 4 DD 3, 3 DD 1, 2 DD 3, 3 DD 3, 4 DD 4, 1 DD 3, 2 DD 1, 3 DD 2, 4 DD 1, 5 DD 1, 2 DD 5, 3 DD 1, 2 DD 2, 1 DD 2, 2 DD 2, 5 DD 2, 3 DD 3, 1 DD 3, 3 DD 3, 3 DD 3, 1 DD 2, 1 DD 3, 5 DD 2, 3 DD 4, 2 DD 1, 1 DD 3, 1 DD 1, 3 DD 1, 3 DD 2, 1 DD 5, 2 DD 2, 3 DD 2, 1 DD 3, 3 DD 3, 2 DD 3, 3 DD 3, 3 DD 5, 1 DD 1, 2 DD 2, 3 DD 4, 2 DD 1, 1 DD 1, 2 DD 1, 3 DD 1, 4 DD 2, 1 DD 5, 2 DD 2, 3 DD 2, 4 DD 3, 1 DD 3, 2 DD 3, 5 DD 2, 1 DD 3, 1 DD 2, 2 DD 1, 3 DD 2, 2 ;----------------------S_Len = ($-STEP0X);--------------------------------------; Table of direction-flags for movement;--------------------------------------W0 DB (Anzahl+1)* 8 DUP(0) ; plus(0) / minus(1) für X,Y;--------------------------------------BALL DB 0CC00h dup (22h) ; Sprite-Table: Offset32, Farbe32;--------------------------------------PICAKT DD MaxX*4*MaxY ; Actual adress of the framebufferPICLEN DD MaxX*4*MaxY ; Screen lenghtPICMAX DD MaxX*4*MaxY*2 ; Max adress;--------------------------------------RETTSI DW 0, 0 ; I don´t like to push the SI-register on the stack;--------------------------------------HINFAR DD HFarb, HFarb ; Background Color;--------------------------------------; C i r c l e;--------------------------------------Y DD 0 ; Double-Word for FPU: sqrXM DD 0 ; X PositionYM DD 0 ; Y PositionCOL DD 0 ; ColorXMAX DW 0, 0YMAX DW 0, 0;--------------------------------------EDID DB 80h dup (55h) ; Buffer for DDC-Monitor-Info;--------------------------------------VINF DB 512 dup (0AAh) ; Buffer for Vesa-Info(4F00h)MINF DB 256 dup (044h) ; Buffer for Mode Info(4F01h);--------------------------------------CRTC DW 1456 ; Horizontal Total in PixelHORIANF DW 1122 ; Horizontal Sync-Start in PixelHORIEND DW 216 ; Horizontal Sync-End in PixelVERTOTA DW 814 ; Vertical Total in LinesVERTANF DW 768 ; Vertical Sync-Start in LinesVERTEND DW 42 ; Vertical Sync-End in LinesDOIFLAG DB 04h ; Flag (interlaced,doubleScan,polarity)PIXCLOC DD 118309000 ; Pixel clock in hzREFRATE DW 10000 ; Refresh-Rate in 0.01 hz;--------------------- DB 40 dup (0);--------------------------------------FLAG DB 0 ; Used for triple buffering adress switching;--------------------------------------ERTEX1 DB Cr, Lf, "No Video-Mode", Cr, Lf, "{:content:}quot;ERTEX2 DB Cr, Lf, "No lineare offset", Cr, Lf, "{:content:}quot;ERTEX3 DB Cr, Lf, "No MMX-CPU", Cr, Lf, "{:content:}quot;ERTEX4 DB Cr, Lf, "No Vesa-Bios", Cr, Lf, "{:content:}quot;ERTEX5 DB Cr, Lf, "No VESA 3 -Bios", Cr, Lf, "{:content:}quot;ERTEX6 DB Cr, Lf, "No DDC", Cr, Lf, "{:content:}quot;ERTEX7 DB Cr, Lf, "Less than 96 khz", Cr, Lf, "{:content:}quot;ERTEX8 DB Cr, Lf, "Less than 160 hz", Cr, Lf, "{:content:}quot;ERTEX9 DB Cr, Lf, "No pixelcloc", Cr, Lf, "{:content:}quot;;-------------------------------------- DATEN ends;---------------------------------------------------------------------------- STAPEL SEGMENT use16 STACK 'STACK' DB 10h dup (0) STAPEL ends;---------------------------------------------------------------------------- end Dirk Edited December 19, 2010 by Dirk Wolfgang Glomp (see edit history) Share this post Link to post Share on other sites
Dirk Wolfgang Glomp 0 Report post Posted December 21, 2010 Difficulty? VESA Programming Replying to zomo Is it possible to put this completely in assembly code without any PASCAL defines. (or at least a simple executable - ie a working example). Most people experience the same problem when using VESA modes. By changing the resolution The image squashes into the top area of the screen. What most people want to know is how to move a pixel about by changing the x y values only, and having the pixel respond accordingly on the screen, in the different resolution modes, with simplicity and control. -question by DENE Vesa function 0 fill our buffer with the vesa-info. Inside of this vesa-buffer we found a pointer to the vesa-modetable. The modetable contains all aviable vesa-modenumbers(of the used vesa-bios).In the end of the modetable we found 0FFFFh. INT 10 - VESA SuperVGA BIOS (VBE) - GET SuperVGA INFORMATION AX = 4F00h ES:DI -> buffer for SuperVGA information (see #00077) Return: AL = 4Fh if function supported AH = status 00h successful ES:DI buffer filled 01h failed ---VBE v2.0--- 02h function not supported by current hardware configuration 03h function invalid in current video mode Desc: determine whether VESA BIOS extensions are present and the capabilities supported by the display adapter SeeAlso: AX=4E00h,AX=4F01h,AX=7F00h"SOLLEX",AX=A00Ch Index: installation check;VESA SuperVGA Format of SuperVGA information: Offset Size Description (Table 00077) 00h 4 BYTEs (ret) signature ("VESA") (call) VESA 2.0 request signature ("VBE2"), required to receive version 2.0 info 04h WORD VESA version number (one-digit minor version -- 0102h = v1.2) 06h DWORD pointer to OEM name "761295520" for ATI 0Ah DWORD capabilities flags (see #00078) 0Eh DWORD pointer to list of supported VESA and OEM video modes (list of words terminated with FFFFh) 12h WORD total amount of video memory in 64K blocks ---VBE v1.x --- 14h 236 BYTEs reserved ---VBE v2.0 --- 14h WORD OEM software version (BCD, high byte = major, low byte = minor) 16h DWORD pointer to vendor name 1Ah DWORD pointer to product name 1Eh DWORD pointer to product revision string 22h WORD (if capabilities bit 3 set) VBE/AF version (BCD) 0100h for v1.0P 24h DWORD (if capabilities bit 3 set) pointer to list of supported accelerated video modes (list of words terminated with FFFFh) 28h 216 BYTEs reserved for VBE implementation 100h 256 BYTEs OEM scratchpad (for OEM strings, etc.) Notes: the list of supported video modes is stored in the reserved portion of the SuperVGA information record by some implementations, and it may thus be necessary to either copy the mode list or use a different buffer for all subsequent VESA calls the 1.1 VESA document specifies 242 reserved bytes at the end, so the buffer should be 262 bytes to ensure that it is not overrun; for v2.0, the buffer should be 512 bytes the S3 specific video modes will most likely follow the FFFFh terminator at the end of the standard modes. A search must then be made to find them, FFFFh will also terminate this second list in some cases, only a "stub" VBE may be present, supporting only AX=4F00h; this case may be assumed if the list of supported video modes is empty (consisting of a single word of FFFFh) Bitfields for VESA capabilities: Bit(s) Description (Table 00078) 0 DAC can be switched into 8-bit mode 1 non-VGA controller 2 programmed DAC with blank bit (i.e. only during blanking interval) 3 controller supports VBE/AF v1.0P extensions 4 (VBE/AF) must call EnableDirectAccess to access framebuffer 5 (VBE/AF) controller supports hardware mouse cursor 6 (VBE/AF) controller supports hardware clipping 7 (VBE/AF) controller supports transparent BitBLT 8-31 reserved (0) SeeAlso: #00077,AX=4F09hWith the vesamodenumber and with the vesa function 1 we can get the modeinfo of the mode in a second buffer.In this modeinfo-buffer we can find the resolution of the mode. Buffer+12h = X (horizontal) and Buffer+14h = Y (vertical). Format of VESA SuperVGA mode information: ----------------------------------------- Offset Size Description (Table 0065) -------------------------------------------- 00h WORD mode attributes (see #0066) 02h BYTE window attributes, window A (see #0067) 03h BYTE window attributes, window B (see #0067) 04h WORD window granularity in KB 06h WORD window size in KB 08h WORD start segment of window A 0Ah WORD start segment of window B 0Ch DWORD -> FAR window positioning function (equivalent to AX=4F05h) 10h WORD bytes per scan line ---remainder is optional for VESA modes in v1.0/1.1, needed for OEM modes--- 12h WORD width in pixels (graphics) or characters (text) 14h WORD height in pixels (graphics) or characters (text) 16h BYTE width of character cell in pixels 17h BYTE height of character cell in pixels 18h BYTE number of memory planes 19h BYTE number of bits per pixel 1Ah BYTE number of banks 1Bh BYTE memory model type (see #0068) 1Ch BYTE size of bank in KB 1Dh BYTE number of image pages 1Eh BYTE reserved (0) ---VBE v1.2+--- 1Fh BYTE red mask size 20h BYTE red field position 21h BYTE green mask size 22h BYTE green field size 23h BYTE blue mask size 24h BYTE blue field size 25h BYTE reserved mask size 26h BYTE reserved mask position 27h BYTE direct color mode info bit 0: color ramp is programmable bit 1: bytes in reserved field may be used by application ---VBE v2.0 --- 28h DWORD physical address of linear video buffer 2Ch DWORD pointer to start of offscreen memory 30h WORD KB of offscreen memory ---VBE v3.0 --- 32h WORD bytes per scan line 34h BYTE 35h BYTE 36h BYTE 37h BYTE 38h BYTE 39h BYTE 3Ah BYTE 3Bh BYTE 3Ch BYTE 3Dh BYTE 3Eh DWORD max. Pixel clock ----------------------------------- 42h BYTE 189 dup(0) reserved ------------------------------------------------------------------------------ Bitfields for VESA SuperVGA mode attributes: Bit(s) Description (Table 0066) 0 mode supported 1 optional information available 2 BIOS output supported 3 set if color, clear if monochrome 4 set if graphics mode, clear if text mode ---VBE v2.0 --- 5 mode is not VGA-compatible 6 bank-switched mode not supported 7 linear framebuffer mode supported ------------------------------------------------------------------------------ Bitfields for VESA SuperVGA window attributes: Bit(s) Description (Table 0067) 0 exists 1 readable 2 writable 3-7 reserved ------------------------------------------------------------------------------ (Table 0068) Values for VESA SuperVGA memory model type: 00h text 01h CGA graphics 02h HGC graphics 03h 16-color (EGA) graphics 04h packed pixel graphics 05h "sequ 256" (non-chain 4) graphics 06h direct color (HiColor, 24-bit color) 07h YUV (luminance-chrominance, also called YIQ) 08h-0Fh reserved for VESA 10h-FFh OEM memory modelsDirk Share this post Link to post Share on other sites
Dirk Wolfgang Glomp 0 Report post Posted December 21, 2010 (edited) No need to use their standards, just use interrupt 10h to do that, I show you how to program VESA 1.2 because VESA 2.0 is protected mode programing.Only a few vesa function is for the protected mode(PM) only. So it is not possible to set a vesamode using the PM.But it is possible to use most VESA 3 function in the realmode(RM). VESA 3 provide vesamodi with own refreshrate that can be used also in banked mode.Linear Vesamodi can also be used with EMS-memory-manager within the RM or the Unrealmode/Bigrealmode/Flatrealmode(without a memory-manager). Dirk Edited December 21, 2010 by Dirk Wolfgang Glomp (see edit history) Share this post Link to post Share on other sites
iGuest 3 Report post Posted May 20, 2012 THE LINE IN THE DATA CODE IS TOO LONGPIXTAB DD MaxY+Ausri dup (0); Offset table of startadresses of any line of the screen(linear framebuffer)LINE TO LONGDOES NOT COMPILE...SO SHORTEN THIS LINEPIXTAB DD MaxY+Ausri dup (0); Offset...THEN IT COMPILESOBJECT CODE is only 1kb though....looks like something went wrong?EOF file encounteredSO IT DOES NOT LINKwith link /cpERROR illegal parametersCAN YOU SUPPLY THE EXECUTABLE FILE?ALSO CODE IS use16 BIT and DATA use32 BIT ???I WILL TRY TO DEBUG THE WORKING EXAMPLE!THANK YOU Share this post Link to post Share on other sites
Dirk Wolfgang Glomp 0 Report post Posted May 28, 2012 THE LINE IN THE DATA CODE IS TOO LONGPIXTAB DD MaxY+Ausri dup (0); Offset table of startadresses of any line of the screen(linear framebuffer)LINE TO LONGDOES NOT COMPILE...SO SHORTEN THIS LINEPIXTAB DD MaxY+Ausri dup (0); Offset...THEN IT COMPILES The text after a semicolon is a comment only for us and will be ignored from the assembler.OBJECT CODE is only 1kb though....looks like something went wrong?EOF file encounteredSO IT DOES NOT LINKwith link /cpERROR illegal parameters This is a command line parameter of the 16 bit link.exe from masm 5.1.(We can remove all parameter.)16 bit linker:Microsoft ® Segmented Executable Linker Version 5.60.339 Dec 5 1994http://forums.xisto.com/no_longer_exists/CAN YOU SUPPLY THE EXECUTABLE FILE?ALSO CODE IS use16 BIT and DATA use32 BIT ??? I think this fit the start address of the data segment on an boundary of 4 byte instead of only 2 bytefor a data ailgment with an 32 bit access reading and writing within the data segment.I WILL TRY TO DEBUG THE WORKING EXAMPLE!THANK YOU From my homepage:Mode info: http://forums.xisto.com/no_longer_exists/ (2576 bytes)Demo: http://forums.xisto.com/no_longer_exists/ (12739 bytes)Dirk Share this post Link to post Share on other sites
