Thema: Vesa: Problem beim Modus Info

[BehindTheScenes]

moin,

ich habe ein Problem beim auslesen des Modus Infos unter Vesa.

hier mal mein Code:

   mov ax, 0x4F00   
   mov di, VbeInfoBlock         
   int 0x10           
   
.1:
   mov cx, 0x114
   mov ax, 0x4F01   
   mov di, ModeInfoBlock         
   int 0x10
   mov dx, [XResolution]
   cli
   hlt

PS: auch mit anderen Modusen versucht

auf jeden fall ist dx = 0x00 .... obwohl es 0x320 sein sollte (800x600) ..

wieso ist das so?
achja hier noch meine Struktur:

;===== Info Block =====;
VbeInfoBlock:
VbeSignature       db "VBE2"       ; VBE Signature
VbeVersion       dw 0300h       ; VBE Version
OemStringPtr       dd 0          ; VbeFarPtr to OEM String
Capabilities       dd 0          ; Capabilities of graphics controller
VideoModePtr       dd 0          ; VbeFarPtr to VideoModeList
TotalMemory       dw 0          ; Number of 64kb memory blocks

OemSoftwareRev       dw 0          ; VBE implementation Software revision
OemVendorNamePtr    dd 0         ; VbeFarPtr to Vendor Name String
OemProductNamePtr    dd 0          ; VbeFarPtr to Product Name String
OemProductRevPtr    dd 0          ; VbeFarPtr to Product Revision String

.Reserved:       times 222 db 0       ; Reserved for VBE implementation scratch
.OemData:      times 256 db 0      ; Data Area for OEM Strings

;===== Mode Info Block =====;
ModeInfoBlock:
ModeAttributes       dw 0          ; mode attributes
WinAAttributes       db 0          ; window A attributes
WinBAttributes       db 0          ; window B attributes
WinGranularity       dw 0          ; window granularity
WinSize       dw 0          ; window size
WinASegment       dw 0          ; window A start segment
WinBSegment       dw 0          ; window B start segment
WinFuncPtr       dd 0          ; real mode pointer to window function
BytesPerScanLine    dw 0          ; bytes per scan line

XResolution       dw 0          ; horizontal resolution in pixels or characters3
YResolution       dw 0          ; vertical resolution in pixels or characters
XCharSize       db 0          ; character cell width in pixels
YCharSize       db 0          ; character cell height in pixels
NumberOfPlanes       db 0          ; number of memory planes
BitsPerPixel       db 0          ; bits per pixel
NumberOfBanks       db 0          ; number of banks
MemoryModel       db 0          ; memory model type
BankSize       db 0          ; bank size in KB
NumberOfImagePages    db 0          ; number of images
.Reserved       db 1          ; reserved for page function

RedMaskSize       db 0          ; size of direct color red mask in bits
RedFieldPosition    db 0          ; bit position of lsb of red mask
GreenMaskSize       db 0          ; size of direct color green mask in bits
GreenFieldPosition    db 0          ; bit position of lsb of green mask
BlueMaskSize       db 0          ; size of direct color blue mask in bits
BlueFieldPosition    db 0          ; bit position of lsb of blue mask
RsvdMaskSize       db 0          ; size of direct color reserved mask in bits
RsvdFieldPosition    db 0          ; bit position of lsb of reserved mask
DirectColorModeInfo    db 0          ; direct color mode attributes

PhysBasePtr       dd 0          ; physical address for flat memory frame buffer
.Reserved1       dd 0          ; Reserved - always set to 0
.Reserved2       dw 0          ; Reserved - always set to 0

LinBytesPerScanLine    dw 0          ; bytes per scan line for linear modes
BnkNumberOfImagePages    db 0          ; number of images for banked modes
LinNumberOfImagePages    db 0          ; number of images for linear modes
LinRedMaskSize       db 0          ; size of direct color red mask (linear modes)
LinRedFieldPosition    db 0          ; bit position of lsb of red mask (linear modes)
LinGreenMaskSize    db 0          ; size of direct color green mask (linear modes)
LinGreenFieldPosition   db 0          ; bit position of lsb of green mask (linear modes)
LinBlueMaskSize    db 0          ; size of direct color blue mask (linear modes)
LinBlueFieldPosition    db 0          ; bit position of lsb of blue mask (linear modes)
LinRsvdMaskSize    db 0          ; size of direct color reserved mask (linear modes)
LinRsvdFieldPosition    db 0          ; bit position of lsb of reserved mask (linear modes)
MaxPixelClock       dd 0          ; maximum pixel clock (in Hz) for graphics mode
.Reserved3:       times 189 db 0       ; remainder of ModeInfoBlock

[BehindTheScenes]

hat sich erledigt ....

[MNemo]

woran lag es denn?

(für jemadnen, der vieleicht das selbe prblem hat ist so was immer recht nützlicht)

[bluecode]

steht im mega-tokyo Forum.