; ## Modes ; graphic modes VBE_MODE_640x400x256 = 100h VBE_MODE_640x480x256 = 101h VBE_MODE_800x600x16 = 102h ;! VBE_MODE_800x600x256 = 103h VBE_MODE_1024x768x16 = 104h VBE_MODE_1024x768x256 = 105h VBE_MODE_1280x1024x16 = 106h VBE_MODE_1280x1024x256 = 107h ; text modes VBE_MODE_80x60 = 108h VBE_MODE_132x25 = 109h VBE_MODE_132x43 = 10Ah VBE_MODE_132x50 = 10Bh VBE_MODE_132x60 = 10Ch ; graphic modes VBE_MODE_320x200x32k = 10Dh VBE_MODE_320x200x64k = 10Eh VBE_MODE_320x200x16M = 10Fh VBE_MODE_640x480x32k = 110h VBE_MODE_640x480x64k = 111h VBE_MODE_640x480x16M = 112h VBE_MODE_800x600x32k = 113h VBE_MODE_800x600x64k = 114h VBE_MODE_800x600x16M = 115h VBE_MODE_1024x768x32k = 116h VBE_MODE_1024x768x64k = 117h VBE_MODE_1024x768x16M = 118h VBE_MODE_1280x1024x32k = 119h VBE_MODE_1280x1024x64k = 11Ah VBE_MODE_1280x1024x16M = 11Bh ; Functions VBE_GET_CONTROL_INFO = 00h VBE_GET_MODE_INFO = 01h VBE_SET_MODE = 02h VBE_GET_CURRENT_MODE = 03h VBE_SAVE_STATE = 04h VBE_DISPLAY_WINDOW = 05h VBE_GET_SCANLINE_LEN = 06h VBE_GET_DISPLAY_START = 07h VBE_GET_PALLETE_FORMAT = 08h VBE_GET_PALLETE_DATA = 09h VBE_GET_PM_INTERFACE = 0Ah VBE_GET_PIXEL_CLOCK = 0Bh VBE_RESTORE_STATE = VBE_SAVE_STATE VBE_SET_SCANLINE_LEN = VBE_GET_SCANLINE_LEN VBE_SET_DISPLAY_START = VBE_GET_DISPLAY_START VBE_SET_PALLETE_FORMAT = VBE_GET_PALLETE_FORMAT VBE_SET_PALLETE_DATA = VBE_GET_PALLETE_DATA VBE_SET_PIXEL_CLOCK = VBE_GET_PIXEL_CLOCK VBE_SUCESSFUL = 004Fh VBE_FAIL = 014Fh VBE_NOTSUPPORTED = 024Fh VBE_SUPPORTED = 034Fh ; ## Functions VBE_GET_CONTROLLER_INFO = 4F00h VBE_GET_MODES_INFO = 4F01h ; ## Structs VbeInfoBlock: .VbeSignature db 'VBE2' ; VBE Signature .VbeVersion dw 0300h ; VBE Version .OemStringPtr dd ? ; VbeFarPtr to OEM String .Capabilities db 4 dup (?) ; Capabilities of graphics controller .VideoModePtr dd ? ; VbeFarPtr to VideoModeList .TotalMemory dw ? ; Number of 64kb memory blocks ; Added for VBE 2.0+ .OemSoftwareRev dw ? ; VBE implementation Software revision .OemVendorNamePtr dd ? ; VbeFarPtr to Vendor Name String .OemProductNamePtr dd ? ; VbeFarPtr to Product Name String .OemProductRevPtr dd ? ; VbeFarPtr to Product Revision String db 222 dup (?) ; Reserved for VBE implementation scratch ; area .OemData db 256 dup (?) ; Data Area for OEM Strings VbeModeInfoBlock: ; Mandatory information for all VBE revisions .ModeAttributes dw ? ; mode attributes .WinAAttributes db ? ; window A attributes .WinBAttributes db ? ; window B attributes .WinGranularity dw ? ; window granularity .WinSize dw ? ; window size .WinASegment dw ? ; window A start segment .WinBSegment dw ? ; window B start segment .WinFuncPtr dd ? ; real mode pointer to window function .BytesPerScanLine dw ? ; bytes per scan line ; Mandatory information for VBE 1.2 and above .XResolution dw ? ; horizontal resolution in pixels or characters .YResolution dw ? ; vertical resolution in pixels or characters .XCharSize db ? ; character cell width in pixels .YCharSize db ? ; character cell height in pixels .NumberOfPlanes db ? ; number of memory planes .BitsPerPixel db ? ; bits per pixel .NumberOfBanks db ? ; number of banks .MemoryModel db ? ; memory model type .BankSize db ? ; bank size in KB .NumberOfImagePages db ? ; number of images db 1 ; reserved for page function ; Direct Color fields (required for direct/6 and YUV/7 memory models) .RedMaskSize db ? ; size of direct color red mask in bits .RedFieldPosition db ? ; bit position of lsb of red mask .GreenMaskSize db ? ; size of direct color green mask in bits .GreenFieldPosition db ? ; bit position of lsb of green mask .BlueMaskSize db ? ; size of direct color blue mask in bits .BlueFieldPosition db ? ; bit position of lsb of blue mask .RsvdMaskSize db ? ; size of direct color reserved mask in bits .RsvdFieldPosition db ? ; bit position of lsb of reserved mask .DirectColorModeInfo db ? ; direct color mode attributes ; Mandatory information for VBE 2.0 and above .PhysBasePtr dd ? ; physical address for flat memory frame buffer dd 0 ; Reserved - always set to 0 dw 0 ; Reserved - always set to 0 ; Mandatory information for VBE 3.0 and above .LinBytesPerScanLine dw ? ; bytes per scan line for linear modes .BnkNumberOfImagePages db ? ; number of images for banked modes .LinNumberOfImagePages db ? ; number of images for linear modes .LinRedMaskSize db ? ; size of direct color red mask (linear modes) .LinRedFieldPosition db ? ; bit position of lsb of red mask (linear modes) .LinGreenMaskSize db ? ; size of direct color green mask (linear modes) .LinGreenFieldPosition db ? ; bit position of lsb of green mask (linear modes) .LinBlueMaskSize db ? ; size of direct color blue mask (linear modes) .LinBlueFieldPosition db ? ; bit position of lsb of blue mask (linear modes) .LinRsvdMaskSize db ? ; size of direct color reserved mask (linear modes) .LinRsvdFieldPosition db ? ; bit position of lsb of reserved mask (linear modes) .MaxPixelClock dd ? ; maximum pixel clock (in Hz) for graphics mode db 189 dup (?) ; reserved: remainder of ModeInfoBlock VbePMInfoBlock: .Signature db 'PMID' ; PM Info Block Signature .EntryPoint dw ? ; Offset of PM entry point within BIOS .PMInitialize dw ? ; Offset of PM initialization entry point .BIOSDataSel dw 0 ; Selector to BIOS data area emulation block .A0000Sel dw 0A000h ; Selector to access A0000h physical mem .B0000Sel dw 0B000h ; Selector to access B0000h physical mem .B8000Sel dw 0B800h ; Selector to access B8000h physical mem .CodeSegSel dw 0C000h ; Selector to access code segment as data .InProtectMode db 0 ; Set to 1 when in protected mode .Checksum db ? ; Checksum byte for structure VbeCRTCInfoBlock: .HorizontalTotal dw ? ; Horizontal total in pixels .HorizontalSyncStart dw ? ; Horizontal sync start in pixels .HorizontalSyncEnd dw ? ; Horizontal sync end in pixels .VerticalTotal dw ? ; Vertical total in lines .VerticalSyncStart dw ? ; Vertical sync start in lines .VerticalSyncEnd dw ? ; Vertical sync end in lines .Flags db ? ; Flags (Interlaced, Double Scan etc) .PixelClock dd ? ; Pixel clock in units of Hz .RefreshRate dw ? ; Refresh rate in units of 0.01 Hz db 40 dup (?) ; reserved - remainder of ModeInfoBlock VbePaletteEntry: .Blue db ? ; Blue channel value (6 or 8 bits) .Green db ? ; Green channel value (6 or 8 bits) .Red db ? ; Red channel value(6 or 8 bits) .Alignment db ? ; DWORD alignment byte (unused)