Used for passing and retrieving registers content to/from real mode interrupt call. More...

#include <realmode_int.h>

Data Fields
uint32_t	reg_eax
uint32_t	reg_ebx
uint32_t	reg_ecx
uint32_t	reg_edx
uint32_t	reg_esi
uint32_t	reg_edi
uint16_t	reg_ds
uint16_t	reg_es
uint16_t	reg_fs
uint16_t	reg_gs
uint16_t	offset
	Offset to segment described by selector.
uint16_t	selector
	Selector or Segment depending on whether this is used from 16bit protected mode or from real mode.
uint8_t	Signature [4]
uint16_t	EntryPoint
uint16_t	PMInitialize
uint16_t	BIOSDataSel
uint16_t	A0000Sel
uint16_t	B0000Sel
uint16_t	B8000Sel
uint16_t	CodeSegSel
uint8_t	InProtectMode
uint8_t	Checksum
uint8_t	VbeSignature [4]
uint16_t	VbeVersion
uint8_t *	OemStringPtr
uint8_t	Capabilities [4]
uint32_t *	VideoModePtr
uint16_t	TotalMemory
uint16_t	OemSoftwareRev
uint8_t *	OemVendorNamePtr
uint8_t *	OemProductNamePtr
uint8_t *	OemProductRevPtr
uint8_t	Reserved [222]
uint8_t	OemData [256]
uint16_t	ModeAttributes
uint8_t	WinAAttributes
uint8_t	WinBAttributes
uint16_t	WinGranularity
uint16_t	WinSize
uint16_t	WinASegment
uint16_t	WinBSegment
uint32_t *	WinFuncPtr
uint16_t	BytesPerScanLine
uint16_t	XResolution
uint16_t	YResolution
uint8_t	XCharSize
uint8_t	YCharSize
uint8_t	NumberOfPlanes
uint8_t	BitsPerPixel
uint8_t	NumberOfBanks
uint8_t	MemoryModel
uint8_t	BankSize
uint8_t	NumberOfImagePages
uint8_t	Reserved0
uint8_t	RedMaskSize
uint8_t	RedFieldPosition
uint8_t	GreenMaskSize
uint8_t	GreenFieldPosition
uint8_t	BlueMaskSize
uint8_t	BlueFieldPosition
uint8_t	RsvdMaskSize
uint8_t	RsvdFieldPosition
uint8_t	DirectColorModeInfo
uint32_t *	PhysBasePtr
uint32_t	Reserved1
uint16_t	Reserved2
uint16_t	LinBytesPerScanLine
uint8_t	BnkNumberOfImagePages
uint8_t	LinNumberOfImagePages
uint8_t	LinRedMaskSize
uint8_t	LinRedFieldPosition
uint8_t	LinGreenMaskSize
uint8_t	LinGreenFieldPosition
uint8_t	LinBlueMaskSize
uint8_t	LinBlueFieldPosition
uint8_t	LinRsvdMaskSize
uint8_t	LinRsvdFieldPosition
uint32_t	MaxPixelClock
uint8_t	Reserved3 [189]
uint16_t	HorizontalTotal
uint16_t	HorizontalSyncStart
uint16_t	HorizontalSyncEnd
uint16_t	VerticalTotal
uint16_t	VerticalSyncStart
uint16_t	VerticalSyncEnd
uint8_t	Flags
uint32_t	PixelClock
uint16_t	RefreshRate
uint8_t	Blue
uint8_t	Green
uint8_t	Red
uint8_t	Alignment
uint8_t	SupVbeSignature [7]
uint16_t	SupVbeVersion
uint8_t	SupVbeSubFunc [8]
uint8_t	PixelClock_div10000 [2]
uint8_t	HorizontalActiveLow
uint8_t	HorizontalBlankingLow
uint8_t	HorizontalBlanking_ActiveHigh
uint8_t	VerticalActiveLow
uint8_t	VerticalBlankingLow
uint8_t	VerticalBlanking_ActiveHigh
uint8_t	HorizontalSyncOffsetLow
uint8_t	HorizontalSyncPulseWidthLow
uint8_t	VerticalSyncPulseWidth_OffsetLow
uint8_t	Vert_Hor_SyncPulseWidth_Offset_High
uint8_t	HorizontalImageSizeLow
uint8_t	VerticalImageSizeLow
uint8_t	Vertical_HorizontalImageSizeHigh
uint8_t	HorizontalBorder
uint8_t	VerticalBorder
uint8_t	ColorPointWhitePointIndexNumber
uint8_t	ColorPointWhiteLowBits
uint8_t	ColorPointWhite_x
uint8_t	ColorPointWhite_y
uint8_t	ColorPointWhiteGamma
uint8_t	MinVerticalRateInHz
uint8_t	MaxVerticalRateInHz
uint8_t	MinHorizontalInKHz
uint8_t	MaxHorizontalInKHz
uint8_t	MaxSupportedPixelClockIn10MHz
uint8_t	GTFStandard [8]
uint8_t	AddressableLinesLow
uint8_t	AspectRatio_AddressableLinesHigh
uint8_t	VerticalRate_PreferredVerticalRate
uint8_t	VersionNumber
EDID_CVT_3_byte_code_descriptor	cvt [4]
uint8_t	RevisionNumber
uint8_t	EST_III [12]
uint8_t	Flag0 [2]
uint8_t	Flag1
uint8_t	DataTypeTag
uint8_t	Flag2
uint8_t	DescriptorData [13]
uint8_t	HorizontalActivePixels
uint8_t	ImageAspectRatio_RefreshRate
uint8_t	Header [8]
uint8_t	IDManufacturerName [2]
uint8_t	IDProductCode [2]
uint8_t	IDSerialNumber [4]
uint8_t	WeekofManufacture
uint8_t	YearofManufacture
uint8_t	Version
uint8_t	Revision
uint8_t	VideoInputDefinition
uint8_t	MaxHorizontalImageSize
uint8_t	MaxVerticalImageSize
uint8_t	DisplayTransferCharacteristic
uint8_t	Features
uint8_t	GreenRedLow
uint8_t	WhiteBlueLow
uint8_t	RedXHigh
uint8_t	RedYHigh
uint8_t	GreenXHigh
uint8_t	GreenYHigh
uint8_t	BlueXHigh
uint8_t	BlueYHigh
uint8_t	WhiteXHigh
uint8_t	WhiteYHigh
uint8_t	EST_I_II_Man [3]
EDID_standard_timing_identification	STI [8]
union EDID_DTD_MD	dtd_md [4]
uint8_t	ExtensionFlag
i386_realmode_interrupt_registers	inoutregs
uint32_t	pm_esp_bkp
uint16_t	pm_ss_bkp
uint16_t	ds_bkp
uint16_t	rm_entry
uint16_t	rm_code_segment
uint32_t	pm_entry
uint16_t	pm_code_selector
uint16_t	idtr_lim_bkp
uint32_t	idtr_base_bkp
uint16_t	es_bkp
uint16_t	fs_bkp
uint16_t	gs_bkp
uint32_t	rml_entry
uint16_t	rml_code_selector
uint16_t	rml_data_selector
uint16_t	rm_stack_segment
uint16_t	rm_stack_pointer
uint16_t	rm_data_segment
uint16_t	limit_low
uint16_t	base_low
uint8_t	base_middle
uint8_t	access
uint8_t	gran_limit_middle
uint8_t	base_high
uint16_t	size
uint64_t	addr
uint32_t	format
uint32_t	magic
rtems_record_item	Version
rtems_record_item	Processor_maximum
rtems_record_item	Count
rtems_record_item	Frequency
rtems_record_item	Info [64]
unsigned int	limit_15_0: 16
unsigned int	base_address_15_0: 16
unsigned int	base_address_23_16: 8
unsigned int	type: 4
unsigned int	descriptor_type: 1
unsigned int	privilege: 2
unsigned int	present: 1
unsigned int	limit_19_16: 4
unsigned int	available: 1
unsigned int	fixed_value_bits: 1
unsigned int	operation_size: 1
unsigned int	granularity: 1
unsigned int	base_address_31_24: 8

Detailed Description

Used for passing and retrieving registers content to/from real mode interrupt call.

describes one entry of Global/Local Descriptor Table

backup values, pointers/parameters accessible in protected mode

parameters, results, backup values accessible in real mode

Supplemental VBE info block.

Describes palette entry.

Describes monitor synchronization.

Describes graphic's mode parameter.

Information about VBE implementation.

Protected mode info block as defined by VBE standard.

Far pointer as defined by VBE standard.

Note: Struct members not necessarily used in C. This serves also as layout of memory and it is used within inline assembler.; Struct members not necessarily used in C. This serves also as layout of memory and it is used within inline assembler.; GCC complains that access to packed data may not be aligned and fair enough. The warning is:

warning: taking address of packed member of 'struct <anonymous>' may result in an unaligned pointer value [-Waddress-of-packed-member]

Disable the warning.

Field Documentation

◆ A0000Sel

uint16_t RTEMS_PACKED::A0000Sel

Selector to access A0000h physical memmory

◆ Alignment

uint8_t RTEMS_PACKED::Alignment

DWORD alignment byte (unused)

◆ B0000Sel

uint16_t RTEMS_PACKED::B0000Sel

Selector to access B0000h physical memmory

◆ B8000Sel

uint16_t RTEMS_PACKED::B8000Sel

Selector to access B8000h physical memmory

◆ BankSize

uint8_t RTEMS_PACKED::BankSize

bank size in KB

◆ BIOSDataSel

uint16_t RTEMS_PACKED::BIOSDataSel

Selector to BIOS data area emulation block

◆ BitsPerPixel

uint8_t RTEMS_PACKED::BitsPerPixel

bits per pixel

◆ Blue

uint8_t RTEMS_PACKED::Blue

Blue channel value (6 or 8 bits)

◆ BlueFieldPosition

uint8_t RTEMS_PACKED::BlueFieldPosition

bit position of lsb of blue mask

◆ BlueMaskSize

uint8_t RTEMS_PACKED::BlueMaskSize

size of direct color blue mask in b

◆ BnkNumberOfImagePages

uint8_t RTEMS_PACKED::BnkNumberOfImagePages

number of images for banked modes

◆ BytesPerScanLine

uint16_t RTEMS_PACKED::BytesPerScanLine

bytes per scan line

◆ Capabilities

uint8_t RTEMS_PACKED::Capabilities[4]

Capabilities of graphics controller

◆ Checksum

uint8_t RTEMS_PACKED::Checksum

Checksum byte for structure. Sum over all structure bytes gives 0.

◆ CodeSegSel

uint16_t RTEMS_PACKED::CodeSegSel

Selector to access code segment as data

◆ DirectColorModeInfo

uint8_t RTEMS_PACKED::DirectColorModeInfo

direct color mode attributes

◆ ds_bkp

uint16_t RTEMS_PACKED::ds_bkp

spot for back up of protected mode data selector

◆ EntryPoint

uint16_t RTEMS_PACKED::EntryPoint

Offset of PM entry point within BIOS

◆ es_bkp

uint16_t RTEMS_PACKED::es_bkp

spot to backup of ES register value in 32bit protected mode

◆ Flags

uint8_t RTEMS_PACKED::Flags

Flags (Interlaced, Double Scan etc)

◆ fs_bkp

uint16_t RTEMS_PACKED::fs_bkp

spot to backup of FS register value in 32bit protected mode

◆ Green

uint8_t RTEMS_PACKED::Green

Green channel value (6 or 8 bits)

◆ GreenFieldPosition

uint8_t RTEMS_PACKED::GreenFieldPosition

bit position of lsb of green mask

◆ GreenMaskSize

uint8_t RTEMS_PACKED::GreenMaskSize

size of direct color green mask in b

◆ gs_bkp

uint16_t RTEMS_PACKED::gs_bkp

spot to backup of GS register value in 32bit protected mode

◆ HorizontalSyncEnd

uint16_t RTEMS_PACKED::HorizontalSyncEnd

Horizontal sync end in pixels

◆ HorizontalSyncStart

uint16_t RTEMS_PACKED::HorizontalSyncStart

Horizontal sync start in pixels

◆ HorizontalTotal

uint16_t RTEMS_PACKED::HorizontalTotal

Horizontal total in pixels

◆ idtr_base_bkp

uint32_t RTEMS_PACKED::idtr_base_bkp

See also: idtr_lim_bkp

◆ idtr_lim_bkp

uint16_t RTEMS_PACKED::idtr_lim_bkp

spot for backup protected mode interrupt descriptor table register

◆ InProtectMode

uint8_t RTEMS_PACKED::InProtectMode

Set to 1 when in protected mode

◆ LinBlueFieldPosition

uint8_t RTEMS_PACKED::LinBlueFieldPosition

bit position of lsb of blue mask

◆ LinBlueMaskSize

uint8_t RTEMS_PACKED::LinBlueMaskSize

size of direct color blue mask

◆ LinBytesPerScanLine

uint16_t RTEMS_PACKED::LinBytesPerScanLine

bytes per scan line for linear modes

◆ LinGreenFieldPosition

uint8_t RTEMS_PACKED::LinGreenFieldPosition

bit position of lsb of green mask

◆ LinGreenMaskSize

uint8_t RTEMS_PACKED::LinGreenMaskSize

size of direct color green mask

◆ LinNumberOfImagePages

uint8_t RTEMS_PACKED::LinNumberOfImagePages

number of images for linear modes

◆ LinRedFieldPosition

uint8_t RTEMS_PACKED::LinRedFieldPosition

bit position of lsb of red mask

◆ LinRedMaskSize

uint8_t RTEMS_PACKED::LinRedMaskSize

size of direct color red mask

◆ LinRsvdFieldPosition

uint8_t RTEMS_PACKED::LinRsvdFieldPosition

bit position of lsb of reserved mask

◆ LinRsvdMaskSize

uint8_t RTEMS_PACKED::LinRsvdMaskSize

size of direct color reserved mask

◆ MaxPixelClock

uint32_t RTEMS_PACKED::MaxPixelClock

maximum pixel clock (in Hz) for graphics mode

◆ MemoryModel

uint8_t RTEMS_PACKED::MemoryModel

memory model type

◆ ModeAttributes

uint16_t RTEMS_PACKED::ModeAttributes

mode attributes

◆ NumberOfBanks

uint8_t RTEMS_PACKED::NumberOfBanks

number of banks

◆ NumberOfImagePages

uint8_t RTEMS_PACKED::NumberOfImagePages

number of images

◆ NumberOfPlanes

uint8_t RTEMS_PACKED::NumberOfPlanes

number of memory planes

◆ OemData

uint8_t RTEMS_PACKED::OemData[256]

Data Area for OEM Strings

◆ OemProductNamePtr

uint8_t * RTEMS_PACKED::OemProductNamePtr

VBE_far_pointer to Product Name String

◆ OemProductRevPtr

uint8_t * RTEMS_PACKED::OemProductRevPtr

VBE_far_pointer to Product Revision String

◆ OemSoftwareRev

uint16_t RTEMS_PACKED::OemSoftwareRev

VBE implementation Software revision

OEM Software revision

◆ OemStringPtr

uint8_t * RTEMS_PACKED::OemStringPtr

VBE_far_pointer to OEM String

◆ OemVendorNamePtr

uint8_t * RTEMS_PACKED::OemVendorNamePtr

VBE_far_pointer to Vendor Name String

◆ PhysBasePtr

uint32_t* RTEMS_PACKED::PhysBasePtr

physical address for flat memory frame buffer

◆ PixelClock

uint32_t RTEMS_PACKED::PixelClock

Pixel clock in units of Hz

◆ pm_code_selector

uint16_t RTEMS_PACKED::pm_code_selector

returning selector for long indirect jump back to 32bit protected mode

◆ pm_entry

uint32_t RTEMS_PACKED::pm_entry

returning offset for long indirect jump back to 32bit protected mode

◆ pm_esp_bkp

uint32_t RTEMS_PACKED::pm_esp_bkp

spot for back up of protected mode stack pointer

◆ pm_ss_bkp

uint16_t RTEMS_PACKED::pm_ss_bkp

spot for back up of protected mode stack selector

◆ PMInitialize

uint16_t RTEMS_PACKED::PMInitialize

Offset of PM initialization entry point

◆ Red

uint8_t RTEMS_PACKED::Red

Red channel value(6 or 8 bits)

◆ RedFieldPosition

uint8_t RTEMS_PACKED::RedFieldPosition

bit position of lsb of red mask

◆ RedMaskSize

uint8_t RTEMS_PACKED::RedMaskSize

size of direct color red mask in bits

◆ RefreshRate

uint16_t RTEMS_PACKED::RefreshRate

Refresh rate in units of 0.01 Hz

◆ Reserved

uint8_t RTEMS_PACKED::Reserved

Reserved for VBE implementation scratch

remainder of VBE_mode_info_block

Reserved for description strings and future expansion

◆ Reserved0

uint8_t RTEMS_PACKED::Reserved0

reserved for page function

◆ Reserved1

uint32_t RTEMS_PACKED::Reserved1

Reserved - always set to 0

◆ Reserved2

uint16_t RTEMS_PACKED::Reserved2

Reserved - always set to 0

◆ Reserved3

uint8_t RTEMS_PACKED::Reserved3[189]

remainder of VBE_mode_info_block

◆ rm_code_segment

uint16_t RTEMS_PACKED::rm_code_segment

spot for setting up long indirect jump segment to real mode from 16bit protected mode

◆ rm_data_segment

uint16_t RTEMS_PACKED::rm_data_segment

data segment for real mode

◆ rm_entry

uint16_t RTEMS_PACKED::rm_entry

spot for setting up long indirect jump offset to real mode from 16bit protected mode

◆ rm_stack_pointer

uint16_t RTEMS_PACKED::rm_stack_pointer

See also: rm_stack_segment

◆ rm_stack_segment

uint16_t RTEMS_PACKED::rm_stack_segment

values determinig location of real mode stack

◆ rml_code_selector

uint16_t RTEMS_PACKED::rml_code_selector

See also: rml_entry

◆ rml_data_selector

uint16_t RTEMS_PACKED::rml_data_selector

data selector for 16bit protected mode

◆ rml_entry

uint32_t RTEMS_PACKED::rml_entry

values for indirect jump to 16bit protected mode

◆ RsvdFieldPosition

uint8_t RTEMS_PACKED::RsvdFieldPosition

bit position of lsb of reserved mask

◆ RsvdMaskSize

uint8_t RTEMS_PACKED::RsvdMaskSize

size of direct color reserved mask

◆ Signature

uint8_t RTEMS_PACKED::Signature[4]

PM Info Block Signature

◆ SupVbeSignature

uint8_t RTEMS_PACKED::SupVbeSignature[7]

Supplemental VBE Signature

◆ SupVbeSubFunc

uint8_t RTEMS_PACKED::SupVbeSubFunc[8]

Bitfield of supported subfunctions

◆ SupVbeVersion

uint16_t RTEMS_PACKED::SupVbeVersion

Supplemental VBE Version

◆ TotalMemory

uint16_t RTEMS_PACKED::TotalMemory

Number of 64kb memory blocks

◆ VbeSignature

uint8_t RTEMS_PACKED::VbeSignature[4]

VBE Signature

◆ VbeVersion

uint16_t RTEMS_PACKED::VbeVersion

VBE Version

◆ VerticalSyncEnd

uint16_t RTEMS_PACKED::VerticalSyncEnd

Vertical sync end in lines

◆ VerticalSyncStart

uint16_t RTEMS_PACKED::VerticalSyncStart

Vertical sync start in lines

◆ VerticalTotal

uint16_t RTEMS_PACKED::VerticalTotal

Vertical total in lines

◆ VideoModePtr

uint32_t* RTEMS_PACKED::VideoModePtr

VBE_far_pointer to VideoModeList

◆ WinAAttributes

uint8_t RTEMS_PACKED::WinAAttributes

window A attributes

◆ WinASegment

uint16_t RTEMS_PACKED::WinASegment

window A start segment

◆ WinBAttributes

uint8_t RTEMS_PACKED::WinBAttributes

window B attributes

◆ WinBSegment

uint16_t RTEMS_PACKED::WinBSegment

window B start segment

◆ WinFuncPtr

uint32_t* RTEMS_PACKED::WinFuncPtr

real mode pointer to window function

◆ WinGranularity

uint16_t RTEMS_PACKED::WinGranularity

window granularity

◆ WinSize

uint16_t RTEMS_PACKED::WinSize

window size

◆ XCharSize

uint8_t RTEMS_PACKED::XCharSize

character cell width in pixels

◆ XResolution

uint16_t RTEMS_PACKED::XResolution

horizontal resolution in px or chars

◆ YCharSize

uint8_t RTEMS_PACKED::YCharSize

character cell height in pixels

◆ YResolution

uint16_t RTEMS_PACKED::YResolution

vertical resolution in px or chars

The documentation for this struct was generated from the following files:

bsps/i386/include/bsp/realmode_int.h
bsps/i386/pc386/include/bsp/vbe3.h
bsps/i386/pc386/include/edid.h
bsps/i386/pc386/start/realmode_int.c
bsps/x86_64/amd64/include/gdt.h
cpukit/include/rtems/record.h
cpukit/score/cpu/i386/include/rtems/score/i386.h

Data Fields