+++ /dev/null
-/*
- * COPYRIGHT: GPL - See COPYING in the top level directory
- * PROJECT: ReactOS Virtual DOS Machine
- * FILE: bios32.c
- * PURPOSE: VDM 32-bit BIOS
- * PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
- */
-
-/* INCLUDES *******************************************************************/
-
-#define NDEBUG
-
-/* For BIOS Version number */
-#include <reactos/buildno.h>
-
-#include "emulator.h"
-#include "cpu/cpu.h" // for EMULATOR_FLAG_CF
-#include "cpu/bop.h"
-#include "int32.h"
-
-#include <bios/bios.h>
-#include <bios/rom.h>
-#include "bios32.h"
-#include "bios32p.h"
-#include "kbdbios32.h"
-#include "vidbios32.h"
-#include "moubios32.h"
-
-#include "io.h"
-#include "hardware/cmos.h"
-#include "hardware/pic.h"
-#include "hardware/pit.h"
-
-/* Extra PSDK/NDK Headers */
-#include <ndk/kefuncs.h>
-
-/* PRIVATE VARIABLES **********************************************************/
-
-CALLBACK16 BiosContext;
-
-/*
-
-Bochs BIOS, see rombios.h
-=========================
-
-// model byte 0xFC = AT
-#define SYS_MODEL_ID 0xFC
-#define SYS_SUBMODEL_ID 0x00
-#define BIOS_REVISION 1
-#define BIOS_CONFIG_TABLE 0xe6f5
-
-#ifndef BIOS_BUILD_DATE
-# define BIOS_BUILD_DATE "06/23/99"
-#endif
-
-// 1K of base memory used for Extended Bios Data Area (EBDA)
-// EBDA is used for PS/2 mouse support, and IDE BIOS, etc.
-#define EBDA_SEG 0x9FC0
-#define EBDA_SIZE 1 // In KiB
-#define BASE_MEM_IN_K (640 - EBDA_SIZE)
-
-
-See rombios.c
-=============
-
-ROM BIOS compatibility entry points:
-===================================
-$e05b ; POST Entry Point
-$e2c3 ; NMI Handler Entry Point
-$e3fe ; INT 13h Fixed Disk Services Entry Point
-$e401 ; Fixed Disk Parameter Table
-$e6f2 ; INT 19h Boot Load Service Entry Point
-$e6f5 ; Configuration Data Table
-$e729 ; Baud Rate Generator Table
-$e739 ; INT 14h Serial Communications Service Entry Point
-$e82e ; INT 16h Keyboard Service Entry Point
-$e987 ; INT 09h Keyboard Service Entry Point
-$ec59 ; INT 13h Diskette Service Entry Point
-$ef57 ; INT 0Eh Diskette Hardware ISR Entry Point
-$efc7 ; Diskette Controller Parameter Table
-$efd2 ; INT 17h Printer Service Entry Point
-$f045 ; INT 10 Functions 0-Fh Entry Point
-$f065 ; INT 10h Video Support Service Entry Point
-$f0a4 ; MDA/CGA Video Parameter Table (INT 1Dh)
-$f841 ; INT 12h Memory Size Service Entry Point
-$f84d ; INT 11h Equipment List Service Entry Point
-$f859 ; INT 15h System Services Entry Point
-$fa6e ; Character Font for 320x200 & 640x200 Graphics (lower 128 characters)
-$fe6e ; INT 1Ah Time-of-day Service Entry Point
-$fea5 ; INT 08h System Timer ISR Entry Point
-$fef3 ; Initial Interrupt Vector Offsets Loaded by POST
-$ff53 ; IRET Instruction for Dummy Interrupt Handler
-$ff54 ; INT 05h Print Screen Service Entry Point
-$fff0 ; Power-up Entry Point
-$fff5 ; ASCII Date ROM was built - 8 characters in MM/DD/YY
-$fffe ; System Model ID
-
-*/
-
-/*
- * See Ralf Brown: http://www.ctyme.com/intr/rb-1594.htm#Table515
- * for more information.
- */
-#define BIOS_MODEL 0xFC // PC-AT
-#define BIOS_SUBMODEL 0x01 // AT models 319,339 8 MHz, Enh Keyb, 3.5"
-#define BIOS_REVISION 0x00
-// FIXME: Find a nice PS/2 486 + 487 BIOS combination!
-
-/*
- * WARNING! For compatibility purposes the string "IBM" should be at F000:E00E .
- * Some programs alternatively look at "COPR. IBM" that is at F000:E008 .
- */
-static const CHAR BiosCopyright[] = "0000000 NTVDM IBM Compatible 486 32-bit BIOS Copyright (C) ReactOS Team 1996-2014";
-static const CHAR BiosVersion[] = "ReactOS NTVDM 32-bit BIOS "KERNEL_VERSION_STR" (Build "KERNEL_VERSION_BUILD_STR")";
-static const CHAR BiosDate[] = "06/17/13";
-
-C_ASSERT(sizeof(BiosCopyright)-1 <= 0x5B); // Ensures that we won't overflow on the POST Code starting at F000:E05B
-C_ASSERT(sizeof(BiosDate)-1 == 0x08);
-
-/* 16-bit bootstrap code at F000:FFF0 */
-static BYTE Bootstrap[] =
-{
- 0xEA, // jmp far ptr
- 0x5B, 0xE0, 0x00, 0xF0, // F000:E05B
-};
-
-/*
- * Normally at F000:E05B there is the POST that finally calls the bootstrap
- * interrupt. It should also check the value of Bda->SoftReset. Since we do
- * all the POST in 32 bit from the start, we just place there the bootstrap
- * interrupt call.
- */
-static BYTE PostCode[] =
-{
- LOBYTE(EMULATOR_BOP), HIBYTE(EMULATOR_BOP), BOP_RESET, // Call BIOS POST
- 0xCD, 0x19, // INT 0x19, the bootstrap loader interrupt
-// LOBYTE(EMULATOR_BOP), HIBYTE(EMULATOR_BOP), BOP_UNSIMULATE
-};
-
-
-/* PRIVATE FUNCTIONS **********************************************************/
-
-static VOID WINAPI BiosException(LPWORD Stack)
-{
- /* Get the exception number and call the emulator API */
- BYTE ExceptionNumber = LOBYTE(Stack[STACK_INT_NUM]);
- EmulatorException(ExceptionNumber, Stack);
-}
-
-static VOID WINAPI BiosMiscService(LPWORD Stack)
-{
- switch (getAH())
- {
- /* OS Hooks for Multitasking */
- case 0x80: // Device Open
- case 0x81: // Device Close
- case 0x82: // Program Termination
- case 0x90: // Device Busy
- case 0x91: // Device POST
- {
- /* Return success by default */
- setAH(0x00);
- Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
- break;
- }
-
- /* Keyboard intercept */
- case 0x4F:
- {
- /* CF should be set but let's just set it again just in case */
- /* Do not modify AL (the hardware scan code), but set CF to continue processing */
- // setCF(1);
- Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
- break;
- }
-
- /* Wait */
- case 0x86:
- {
- /*
- * Interval in microseconds in CX:DX
- * See Ralf Brown: http://www.ctyme.com/intr/rb-1525.htm
- * for more information.
- */
- LARGE_INTEGER TimeOut;
- TimeOut.QuadPart = MAKELONG(getDX(), getCX()) * -10LL;
-
- // HACK: For now, use the NT API (time in hundreds of nanoseconds).
- NtDelayExecution(FALSE, &TimeOut);
-
- /* Clear CF */
- Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
-
- break;
- }
-
- /* Copy Extended Memory */
- case 0x87:
- {
- DWORD Count = (DWORD)getCX() * 2;
- PFAST486_GDT_ENTRY Gdt = (PFAST486_GDT_ENTRY)SEG_OFF_TO_PTR(getES(), getSI());
- DWORD SourceBase = Gdt[2].Base + (Gdt[2].BaseMid << 16) + (Gdt[2].BaseHigh << 24);
- DWORD SourceLimit = Gdt[2].Limit + (Gdt[2].LimitHigh << 16);
- DWORD DestBase = Gdt[3].Base + (Gdt[3].BaseMid << 16) + (Gdt[3].BaseHigh << 24);
- DWORD DestLimit = Gdt[3].Limit + (Gdt[3].LimitHigh << 16);
-
- /* Check for flags */
- if (Gdt[2].Granularity) SourceLimit = (SourceLimit << 12) | 0xFFF;
- if (Gdt[3].Granularity) DestLimit = (DestLimit << 12) | 0xFFF;
-
- if ((Count > SourceLimit) || (Count > DestLimit))
- {
- setAX(0x80);
- Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
-
- break;
- }
-
- /* Copy */
- RtlMoveMemory((PVOID)((ULONG_PTR)BaseAddress + DestBase),
- (PVOID)((ULONG_PTR)BaseAddress + SourceBase),
- Count);
-
- setAX(ERROR_SUCCESS);
- Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
- break;
- }
-
- /* Get Extended Memory Size */
- case 0x88:
- {
- UCHAR Low, High;
-
- /*
- * Return the (usable) extended memory (after 1 MB)
- * size in kB from CMOS.
- */
- IOWriteB(CMOS_ADDRESS_PORT, CMOS_REG_ACTUAL_EXT_MEMORY_LOW);
- Low = IOReadB(CMOS_DATA_PORT);
- IOWriteB(CMOS_ADDRESS_PORT, CMOS_REG_ACTUAL_EXT_MEMORY_HIGH);
- High = IOReadB(CMOS_DATA_PORT);
- setAX(MAKEWORD(Low, High));
-
- /* Clear CF */
- Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
-
- break;
- }
-
- /* Switch to Protected Mode */
- case 0x89:
- {
- DPRINT1("BIOS INT 15h, AH=89h \"Switch to Protected Mode\" is UNIMPLEMENTED");
-
- Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
- break;
- }
-
- /* Get Configuration */
- case 0xC0:
- {
- /* Return the BIOS ROM Configuration Table address in ES:BX */
- // The BCT is found at F000:E6F5 for 100% compatible BIOSes.
- setES(BIOS_SEGMENT);
- setBX(0xE6F5);
-
- /* Call successful; clear CF */
- setAH(0x00);
- Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
-
- break;
- }
-
- /* Return Extended-Bios Data-Area Segment Address (PS) */
- case 0xC1:
- {
- // Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
- // setES(???);
-
- UNIMPLEMENTED;
-
- /* We do not support EBDA yet */
- Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
-
- break;
- }
-
- /* Pointing Device BIOS Interface (PS) */
- case 0xC2:
- {
- BiosMousePs2Interface(Stack);
- break;
- }
-
- default:
- {
- DPRINT1("BIOS Function INT 15h, AH = 0x%02X NOT IMPLEMENTED\n",
- getAH());
- }
- }
-}
-
-static VOID WINAPI BiosRomBasic(LPWORD Stack)
-{
- /* ROM Basic is unsupported, display a message to the user */
- DisplayMessage(L"NTVDM doesn't support ROM Basic. The VDM is closing.");
-
- /* Stop the VDM */
- EmulatorTerminate();
- return;
-}
-
-
-VOID DosBootsectorInitialize(VOID);
-
-static VOID WINAPI BiosBootstrapLoader(LPWORD Stack)
-{
- /*
- * In real BIOSes one loads the bootsector read from a diskette
- * or from a disk, copy it to 0000:7C00 and then boot it.
- * Since we are 32-bit VM and we hardcode our DOS at the moment,
- * just call the DOS 32-bit initialization code.
- */
-
- DPRINT("BiosBootstrapLoader -->\n");
-
- /* Load DOS */
- DosBootsectorInitialize();
-
- /*
- * Position CPU to 0000:7C00 to boot the OS.
- *
- * Since we are called via the INT32 mechanism, we need to correctly set
- * CS:IP, not by changing the current one (otherwise the interrupt could
- * not be clean up and return properly), but by changing the CS:IP in the
- * stack, so that when the interrupt returns, the modified CS:IP is popped
- * off the stack and the CPU is correctly repositioned.
- */
- Stack[STACK_CS] = 0x0000;
- Stack[STACK_IP] = 0x7C00;
-
- DPRINT("<-- BiosBootstrapLoader\n");
-}
-
-static VOID WINAPI BiosTimeService(LPWORD Stack)
-{
- switch (getAH())
- {
- case 0x00:
- {
- /* Set AL to 1 if midnight had passed, 0 otherwise */
- setAL(Bda->MidnightPassed ? 0x01 : 0x00);
-
- /* Return the tick count in CX:DX */
- setCX(HIWORD(Bda->TickCounter));
- setDX(LOWORD(Bda->TickCounter));
-
- /* Reset the midnight flag */
- Bda->MidnightPassed = FALSE;
-
- break;
- }
-
- case 0x01:
- {
- /* Set the tick count to CX:DX */
- Bda->TickCounter = MAKELONG(getDX(), getCX());
-
- /* Reset the midnight flag */
- Bda->MidnightPassed = FALSE;
-
- break;
- }
-
- default:
- {
- DPRINT1("BIOS Function INT 1Ah, AH = 0x%02X NOT IMPLEMENTED\n",
- getAH());
- }
- }
-}
-
-static VOID WINAPI BiosSystemTimerInterrupt(LPWORD Stack)
-{
- /* Increase the system tick count */
- Bda->TickCounter++;
-}
-
-
-// From SeaBIOS
-static VOID PicSetIRQMask(USHORT off, USHORT on)
-{
- UCHAR pic1off = off, pic1on = on, pic2off = off>>8, pic2on = on>>8;
- IOWriteB(PIC_MASTER_DATA, (IOReadB(PIC_MASTER_DATA) & ~pic1off) | pic1on);
- IOWriteB(PIC_SLAVE_DATA , (IOReadB(PIC_SLAVE_DATA ) & ~pic2off) | pic2on);
-}
-
-// From SeaBIOS
-VOID EnableHwIRQ(UCHAR hwirq, EMULATOR_INT32_PROC func)
-{
- UCHAR vector;
-
- PicSetIRQMask(1 << hwirq, 0);
- if (hwirq < 8)
- vector = BIOS_PIC_MASTER_INT + hwirq;
- else
- vector = BIOS_PIC_SLAVE_INT + hwirq - 8;
-
- RegisterBiosInt32(vector, func);
-}
-
-
-VOID PicIRQComplete(LPWORD Stack)
-{
- /* Get the interrupt number */
- BYTE IntNum = LOBYTE(Stack[STACK_INT_NUM]);
-
- /*
- * If this was a PIC IRQ, send an End-of-Interrupt to the PIC.
- */
-
- if (IntNum >= BIOS_PIC_MASTER_INT && IntNum < BIOS_PIC_MASTER_INT + 8)
- {
- /* It was an IRQ from the master PIC */
- IOWriteB(PIC_MASTER_CMD, PIC_OCW2_EOI);
- }
- else if (IntNum >= BIOS_PIC_SLAVE_INT && IntNum < BIOS_PIC_SLAVE_INT + 8)
- {
- /* It was an IRQ from the slave PIC */
- IOWriteB(PIC_SLAVE_CMD , PIC_OCW2_EOI);
- IOWriteB(PIC_MASTER_CMD, PIC_OCW2_EOI);
- }
-}
-
-static VOID WINAPI BiosHandleMasterPicIRQ(LPWORD Stack)
-{
- BYTE IrqNumber;
-
- IOWriteB(PIC_MASTER_CMD, PIC_OCW3_READ_ISR /* == 0x0B */);
- IrqNumber = IOReadB(PIC_MASTER_CMD);
-
- DPRINT("Master - IrqNumber = 0x%02X\n", IrqNumber);
-
- PicIRQComplete(Stack);
-}
-
-static VOID WINAPI BiosHandleSlavePicIRQ(LPWORD Stack)
-{
- BYTE IrqNumber;
-
- IOWriteB(PIC_SLAVE_CMD, PIC_OCW3_READ_ISR /* == 0x0B */);
- IrqNumber = IOReadB(PIC_SLAVE_CMD);
-
- DPRINT("Slave - IrqNumber = 0x%02X\n", IrqNumber);
-
- PicIRQComplete(Stack);
-}
-
-// Timer IRQ 0
-static VOID WINAPI BiosTimerIrq(LPWORD Stack)
-{
- /*
- * Perform the system timer interrupt.
- *
- * Do not call directly BiosSystemTimerInterrupt(Stack);
- * because some programs may hook only BIOS_SYS_TIMER_INTERRUPT
- * for their purpose...
- */
- Int32Call(&BiosContext, BIOS_SYS_TIMER_INTERRUPT);
- // BiosSystemTimerInterrupt(Stack);
- PicIRQComplete(Stack);
-}
-
-
-static VOID BiosHwSetup(VOID)
-{
- /* Initialize the master and the slave PICs (cascade mode) */
- IOWriteB(PIC_MASTER_CMD, PIC_ICW1 | PIC_ICW1_ICW4);
- IOWriteB(PIC_SLAVE_CMD , PIC_ICW1 | PIC_ICW1_ICW4);
-
- /*
- * Set the interrupt vector offsets for each PIC
- * (base IRQs: 0x08-0x0F for IRQ 0-7, 0x70-0x77 for IRQ 8-15)
- */
- IOWriteB(PIC_MASTER_DATA, BIOS_PIC_MASTER_INT);
- IOWriteB(PIC_SLAVE_DATA , BIOS_PIC_SLAVE_INT );
-
- /* Tell the master PIC that there is a slave PIC at IRQ 2 */
- IOWriteB(PIC_MASTER_DATA, 1 << 2);
- /* Tell the slave PIC its cascade identity */
- IOWriteB(PIC_SLAVE_DATA , 2);
-
- /* Make sure both PICs are in 8086 mode */
- IOWriteB(PIC_MASTER_DATA, PIC_ICW4_8086);
- IOWriteB(PIC_SLAVE_DATA , PIC_ICW4_8086);
-
- /* Clear the masks for both PICs */
- // IOWriteB(PIC_MASTER_DATA, 0x00);
- // IOWriteB(PIC_SLAVE_DATA , 0x00);
- /* Disable all IRQs */
- IOWriteB(PIC_MASTER_DATA, 0xFF);
- IOWriteB(PIC_SLAVE_DATA , 0xFF);
-
-
- /* Initialize PIT Counter 0 - Mode 2, 16bit binary count */
- // NOTE: Some BIOSes set it to Mode 3 instead.
- IOWriteB(PIT_COMMAND_PORT, 0x34);
- // 18.2Hz refresh rate
- IOWriteB(PIT_DATA_PORT(0), 0x00);
- IOWriteB(PIT_DATA_PORT(0), 0x00);
-
- /* Initialize PIT Counter 1 - Mode 2, 8bit binary count */
- IOWriteB(PIT_COMMAND_PORT, 0x54);
- // DRAM refresh every 15ms: http://www.cs.dartmouth.edu/~spl/Academic/Organization/docs/PC%20Timer%208253.html
- IOWriteB(PIT_DATA_PORT(1), 18);
-
- /* Initialize PIT Counter 2 - Mode 3, 16bit binary count */
- IOWriteB(PIT_COMMAND_PORT, 0xB6);
- // Count for 440Hz
- IOWriteB(PIT_DATA_PORT(2), 0x97);
- IOWriteB(PIT_DATA_PORT(2), 0x0A);
-
- EnableHwIRQ(0, BiosTimerIrq);
-}
-
-static VOID InitializeBiosInt32(VOID)
-{
- USHORT i;
-
- /* Initialize the callback context */
- InitializeContext(&BiosContext, BIOS_SEGMENT, 0x0000);
-
- /* Register the default BIOS 32-bit Interrupts */
- for (i = 0x00; i <= 0xFF; i++)
- {
- RegisterBiosInt32(i, NULL);
- }
-
- /* Initialize the exception vector interrupts to a default Exception handler */
- for (i = 0; i < 8; i++)
- RegisterBiosInt32(i, BiosException);
-
- /* Initialize HW vector interrupts to a default HW handler */
- for (i = BIOS_PIC_MASTER_INT; i < BIOS_PIC_MASTER_INT + 8; i++)
- RegisterBiosInt32(i, BiosHandleMasterPicIRQ);
- for (i = BIOS_PIC_SLAVE_INT ; i < BIOS_PIC_SLAVE_INT + 8; i++)
- RegisterBiosInt32(i, BiosHandleSlavePicIRQ);
-
- /* Initialize software vector handlers */
- RegisterBiosInt32(BIOS_EQUIPMENT_INTERRUPT, BiosEquipmentService );
- RegisterBiosInt32(BIOS_MEMORY_SIZE , BiosGetMemorySize );
- RegisterBiosInt32(BIOS_MISC_INTERRUPT , BiosMiscService );
- RegisterBiosInt32(BIOS_ROM_BASIC , BiosRomBasic );
- RegisterBiosInt32(BIOS_BOOTSTRAP_LOADER , BiosBootstrapLoader );
- RegisterBiosInt32(BIOS_TIME_INTERRUPT , BiosTimeService );
- RegisterBiosInt32(BIOS_SYS_TIMER_INTERRUPT, BiosSystemTimerInterrupt);
-
- /* Some interrupts are in fact addresses to tables */
- ((PULONG)BaseAddress)[0x1E] = (ULONG)NULL;
- ((PULONG)BaseAddress)[0x41] = (ULONG)NULL;
- ((PULONG)BaseAddress)[0x46] = (ULONG)NULL;
- ((PULONG)BaseAddress)[0x48] = (ULONG)NULL;
- ((PULONG)BaseAddress)[0x49] = (ULONG)NULL;
-}
-
-static VOID InitializeBiosData(VOID)
-{
- UCHAR Low, High;
-
- /* Initialize the BDA contents */
- RtlZeroMemory(Bda, sizeof(*Bda));
- Bda->EquipmentList = BIOS_EQUIPMENT_LIST;
-
- /*
- * Retrieve the conventional memory size
- * in kB from CMOS, typically 640 kB.
- */
- IOWriteB(CMOS_ADDRESS_PORT, CMOS_REG_BASE_MEMORY_LOW);
- Low = IOReadB(CMOS_DATA_PORT);
- IOWriteB(CMOS_ADDRESS_PORT, CMOS_REG_BASE_MEMORY_HIGH);
- High = IOReadB(CMOS_DATA_PORT);
- Bda->MemorySize = MAKEWORD(Low, High);
-}
-
-static VOID InitializeBiosInfo(VOID)
-{
- RtlZeroMemory(Bct, sizeof(*Bct));
-
- Bct->Length = sizeof(*Bct);
- Bct->Model = BIOS_MODEL;
- Bct->SubModel = BIOS_SUBMODEL;
- Bct->Revision = BIOS_REVISION;
- Bct->Feature[0] = 0x70; // At the moment we don't support "wait for external event (INT 15/AH=41h)", we also don't have any "extended BIOS area allocated (usually at top of RAM)"; see http://www.ctyme.com/intr/rb-1594.htm#Table510
- Bct->Feature[1] = 0x00; // We don't support anything from here; see http://www.ctyme.com/intr/rb-1594.htm#Table511
- Bct->Feature[2] = 0x00;
- Bct->Feature[3] = 0x00;
- Bct->Feature[4] = 0x00;
-}
-
-
-
-/*
- * The BIOS POST (Power On-Self Test)
- */
-VOID
-Bios32Post(VOID)
-{
-#if 0
- BOOLEAN Success;
-#endif
-
- DPRINT("Bios32Post\n");
-
- /* Initialize the stack */
- // That's what says IBM... (stack at 30:00FF going downwards)
- // setSS(0x0000);
- // setSP(0x0400);
- setSS(0x0050); // Stack at 50:0400, going downwards
- setSP(0x0400);
-
- /* Set data segment */
- setDS(BDA_SEGMENT);
-
- /* Initialize the BDA and the BIOS ROM Information */
- InitializeBiosData();
- InitializeBiosInfo();
-
- /*
- * Initialize IVT and hardware
- */
-
- /* Register the BIOS 32-bit Interrupts */
- InitializeBiosInt32();
-
- /* Initialize platform hardware (PIC/PIT chips, ...) */
- BiosHwSetup();
-
- /* Initialize the Keyboard, Video and Mouse BIOS */
- if (!KbdBios32Initialize() || !VidBios32Initialize() || !MouseBios32Initialize())
- {
- // return FALSE;
-
- /* Stop the VDM */
- EmulatorTerminate();
- return;
- }
-
-#if 0
- /* Initialize the Keyboard and Video BIOS */
- if (!KbdBiosInitialize() || !VidBiosInitialize())
- {
- /* Stop the VDM */
- EmulatorTerminate();
- return;
- }
-#endif
-
- ///////////// MUST BE DONE AFTER IVT INITIALIZATION !! /////////////////////
-
-#if 0
- /* Load some ROMs */
- Success = LoadRom("boot.bin", (PVOID)0xE0000, NULL);
- DPRINT1("Test ROM loading %s ; GetLastError() = %u\n", Success ? "succeeded" : "failed", GetLastError());
-#endif
-
- SearchAndInitRoms(&BiosContext);
-
- /*
- * End of the 32-bit POST portion. We then fall back into 16-bit where
- * the rest of the POST code is executed, typically calling INT 19h
- * to boot up the OS.
- */
-}
-
-static VOID WINAPI Bios32ResetBop(LPWORD Stack)
-{
- DPRINT("Bios32ResetBop\n");
-
- /* Disable interrupts */
- setIF(0);
-
- // FIXME: Check the word at 0040h:0072h (Bda->SoftReset) and do one of the
- // following actions:
- // - if the word is 1234h, perform a warm reboot (aka. Ctrl-Alt-Del);
- // - if the word is 0000h, perform a cold reboot (aka. Reset).
-
- /* Do the POST */
- Bios32Post();
-
- /* Enable interrupts */
- setIF(1);
-}
-
-
-/* PUBLIC FUNCTIONS ***********************************************************/
-
-BOOLEAN Bios32Initialize(VOID)
-{
- /*
- * Initialize BIOS32 static data
- */
-
- /* Bootstrap code */
- RtlCopyMemory(SEG_OFF_TO_PTR(0xF000, 0xE05B), PostCode , sizeof(PostCode ));
- RtlCopyMemory(SEG_OFF_TO_PTR(0xF000, 0xFFF0), Bootstrap, sizeof(Bootstrap));
-
- /* System BIOS Copyright */
- RtlCopyMemory(SEG_OFF_TO_PTR(0xF000, 0xE000), BiosCopyright, sizeof(BiosCopyright)-1);
-
- /* System BIOS Version */
- RtlCopyMemory(SEG_OFF_TO_PTR(0xF000, 0xE080), BiosVersion, sizeof(BiosVersion)-1);
- // FIXME: or E061, or E100 ??
-
- /* System BIOS Date */
- RtlCopyMemory(SEG_OFF_TO_PTR(0xF000, 0xFFF5), BiosDate, sizeof(BiosDate)-1);
-
- /* System BIOS Model (same as Bct->Model) */
- *(PBYTE)(SEG_OFF_TO_PTR(0xF000, 0xFFFE)) = BIOS_MODEL;
-
- /* Redefine our POST function */
- RegisterBop(BOP_RESET, Bios32ResetBop);
-
- /* We are done */
- return TRUE;
-}
-
-VOID Bios32Cleanup(VOID)
-{
- MouseBios32Cleanup();
- VidBios32Cleanup();
- KbdBios32Cleanup();
-}
-
-/* EOF */
projects / reactos.git / blobdiff