Bios Class Reference

#include <Bios.h>

Collaboration diagram for Bios:

Public Member Functions
void	executeInterrupt (int interrupt)
uintptr_t	malloc (int n)
void	free (uintptr_t)
void	setAx (int n)
void	setBx (int n)
void	setCx (int n)
void	setDx (int n)
void	setDi (int n)
void	setEs (int n)
int	getAx ()
int	getBx ()
int	getCx ()
int	getDx ()
int	getDi ()
int	getEs ()

Static Public Member Functions
static Bios &	instance ()

Private Member Functions
	Bios ()

Private Attributes
uintptr_t	mallocLoc

Static Private Attributes
static Bios	m_Instance

Detailed Description

Provides an interface to BIOS functions. Currently, this is implemented as a wrapper around X86Emu, taken from the XFree86 source.

Definition at line 28 of file Bios.h.

Constructor & Destructor Documentation

Bios::Bios ( )

private

Private constructor - Singleton class.

Definition at line 130 of file Bios.cc.

Member Function Documentation

void Bios::executeInterrupt

(

int

interrupt

)

Executes a BIOS interrupt.

Parameters

i	The interrupt number to execute.

Definition at line 172 of file Bios.cc.

References ERROR, Processor::getInterrupts(), VirtualAddressSpace::getKernelAddressSpace(), Hex, Processor::information(), VirtualAddressSpace::isMapped(), VirtualAddressSpace::KernelMode, VirtualAddressSpace::map(), Processor::setInterrupts(), Processor::switchAddressSpace(), and VirtualAddressSpace::Write.

Referenced by X86Vga::rememberMode(), X86Vga::restoreMode(), and VbeDisplay::setScreenMode().

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int Bios::getAx

(

)

Gets the AX register.

Definition at line 236 of file Bios.cc.

int Bios::getBx

(

)

Gets the BX register.

Definition at line 240 of file Bios.cc.

int Bios::getCx

(

)

Gets the CX register.

Definition at line 244 of file Bios.cc.

int Bios::getDi

(

)

Gets the DI register.

Definition at line 252 of file Bios.cc.

int Bios::getDx

(

)

Gets the DX register.

Definition at line 248 of file Bios.cc.

int Bios::getEs

(

)

Gets the ES register.

Definition at line 256 of file Bios.cc.

static Bios& Bios::instance ( )

inlinestatic

Returns the singleton BIOS instance.

Definition at line 32 of file Bios.h.

Referenced by X86Vga::rememberMode(), X86Vga::restoreMode(), and VbeDisplay::setScreenMode().

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uintptr_t Bios::malloc

(

int

n

)

Returns n bytes of sub-64K space.

Definition at line 165 of file Bios.cc.

References mallocLoc.

void Bios::setAx

(

int

n

)

Sets the AX register.

Definition at line 211 of file Bios.cc.

Referenced by X86Vga::rememberMode(), X86Vga::restoreMode(), and VbeDisplay::setScreenMode().

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void Bios::setBx

(

int

n

)

Sets the BX register.

Definition at line 215 of file Bios.cc.

Referenced by X86Vga::rememberMode(), X86Vga::restoreMode(), and VbeDisplay::setScreenMode().

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void Bios::setCx

(

int

n

)

Sets the CX register.

Definition at line 219 of file Bios.cc.

void Bios::setDi

(

int

n

)

Sets the DI register.

Definition at line 227 of file Bios.cc.

Referenced by X86Vga::rememberMode(), X86Vga::restoreMode(), and VbeDisplay::setScreenMode().

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void Bios::setDx

(

int

n

)

Sets the DX register.

Definition at line 223 of file Bios.cc.

void Bios::setEs

(

int

n

)

Sets the ES register.

Definition at line 231 of file Bios.cc.

Referenced by X86Vga::rememberMode(), X86Vga::restoreMode(), and VbeDisplay::setScreenMode().

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Member Data Documentation

Bios Bios::m_Instance

staticprivate

Singleton instance.

Definition at line 83 of file Bios.h.

uintptr_t Bios::mallocLoc

private

Malloc location.

Definition at line 80 of file Bios.h.

Referenced by malloc().

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

• Bios.h
• Bios.cc