BOOLEAN EmulatorInitialize(HANDLE ConsoleInput, HANDLE ConsoleOutput)
{
/* Allocate memory for the 16-bit address space */
BaseAddress = HeapAlloc(GetProcessHeap(), /*HEAP_ZERO_MEMORY*/ 0, MAX_ADDRESS);
if (BaseAddress == NULL)
{
wprintf(L"FATAL: Failed to allocate VDM memory.\n");
return FALSE;
}
/*
* For diagnostics purposes, we fill the memory with INT 0x03 codes
* so that if a program wants to execute random code in memory, we can
* retrieve the exact CS:IP where the problem happens.
*/
RtlFillMemory(BaseAddress, MAX_ADDRESS, 0xCC);
/* Initialize I/O ports */
/* Initialize RAM */
/* Initialize the CPU */
/* Initialize the internal clock */
if (!ClockInitialize())
{
wprintf(L"FATAL: Failed to initialize the clock\n");
return FALSE;
}
/* Initialize the CPU */
CpuInitialize();
// Fast486Initialize(&EmulatorContext,
// EmulatorReadMemory,
// EmulatorWriteMemory,
// EmulatorReadIo,
// EmulatorWriteIo,
// NULL,
// EmulatorBiosOperation,
// EmulatorIntAcknowledge,
// NULL /* TODO: Use a TLB */);
/* Initialize DMA */
/* Initialize the PIC, the PIT, the CMOS and the PC Speaker */
PicInitialize();
PitInitialize();
CmosInitialize();
SpeakerInitialize();
/* Set output functions */
PitSetOutFunction(0, NULL, PitChan0Out);
PitSetOutFunction(1, NULL, PitChan1Out);
PitSetOutFunction(2, NULL, PitChan2Out);
/* Register the I/O Ports */
RegisterIoPort(CONTROL_SYSTEM_PORT61H, Port61hRead, Port61hWrite);
/* Set the console input mode */
// FIXME: Activate ENABLE_WINDOW_INPUT when we will want to perform actions
// upon console window events (screen buffer resize, ...).
SetConsoleMode(ConsoleInput, ENABLE_PROCESSED_INPUT /* | ENABLE_WINDOW_INPUT */);
// SetConsoleMode(ConsoleOutput, ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT);
/**/EnableExtraHardware(ConsoleInput);/**/
/* Initialize the PS/2 port */
PS2Initialize();
/* Initialize the keyboard and mouse and connect them to their PS/2 ports */
KeyboardInit(0);
MouseInit(1);
/**************** ATTACH INPUT WITH CONSOLE *****************/
/* Start the input thread */
InputThread = CreateThread(NULL, 0, &PumpConsoleInput, ConsoleInput, 0, NULL);
if (InputThread == NULL)
{
DisplayMessage(L"Failed to create the console input thread.");
return FALSE;
}
/************************************************************/
/* Initialize the VGA */
if (!VgaInitialize(ConsoleOutput))
{
DisplayMessage(L"Failed to initialize VGA support.");
return FALSE;
}
/* Initialize the software callback system and register the emulator BOPs */
InitializeInt32();
RegisterBop(BOP_DEBUGGER , EmulatorDebugBreakBop);
// RegisterBop(BOP_UNSIMULATE, CpuUnsimulateBop);
/* Initialize VDD support */
VDDSupInitialize();
return TRUE;
}
BOOLEAN EmulatorInitialize(HANDLE ConsoleInput, HANDLE ConsoleOutput)
{
USHORT i;
/* Initialize memory */
if (!MemInitialize())
{
wprintf(L"Memory initialization failed.\n");
return FALSE;
}
/* Initialize I/O ports */
/* Initialize RAM */
/* Initialize the CPU */
/* Initialize the internal clock */
if (!ClockInitialize())
{
wprintf(L"FATAL: Failed to initialize the clock\n");
EmulatorCleanup();
return FALSE;
}
/* Initialize the CPU */
CpuInitialize();
/* Initialize DMA */
DmaInitialize();
/* Initialize PIC, PIT, CMOS, PC Speaker and PS/2 */
PicInitialize();
PitInitialize();
PitSetOutFunction(0, NULL, PitChan0Out);
PitSetOutFunction(1, NULL, PitChan1Out);
PitSetOutFunction(2, NULL, PitChan2Out);
CmosInitialize();
SpeakerInitialize();
PpiInitialize();
PS2Initialize();
/* Initialize the keyboard and mouse and connect them to their PS/2 ports */
KeyboardInit(0);
MouseInit(1);
/**************** ATTACH INPUT WITH CONSOLE *****************/
/* Create the task event */
VdmTaskEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
ASSERT(VdmTaskEvent != NULL);
/* Start the input thread */
InputThread = CreateThread(NULL, 0, &ConsoleEventThread, ConsoleInput, 0, NULL);
if (InputThread == NULL)
{
wprintf(L"FATAL: Failed to create the console input thread.\n");
EmulatorCleanup();
return FALSE;
}
ResumeEventThread();
/************************************************************/
/* Initialize the VGA */
if (!VgaInitialize(ConsoleOutput))
{
wprintf(L"FATAL: Failed to initialize VGA support.\n");
EmulatorCleanup();
return FALSE;
}
/* Initialize the disk controller */
if (!DiskCtrlInitialize())
{
wprintf(L"FATAL: Failed to completely initialize the disk controller.\n");
EmulatorCleanup();
return FALSE;
}
/* Mount the available floppy disks */
for (i = 0; i < ARRAYSIZE(GlobalSettings.FloppyDisks); ++i)
{
if (GlobalSettings.FloppyDisks[i].Length != 0 &&
GlobalSettings.FloppyDisks[i].Buffer &&
GlobalSettings.FloppyDisks[i].Buffer != '\0')
{
if (!MountDisk(FLOPPY_DISK, i, GlobalSettings.FloppyDisks[i].Buffer, FALSE))
{
DPRINT1("Failed to mount floppy disk file '%wZ'.\n", &GlobalSettings.FloppyDisks[i]);
RtlFreeUnicodeString(&GlobalSettings.FloppyDisks[i]);
RtlInitEmptyUnicodeString(&GlobalSettings.FloppyDisks[i], NULL, 0);
}
}
}
/*
* Mount the available hard disks. Contrary to floppies, failing
* mounting a hard disk is considered as an unrecoverable error.
*/
for (i = 0; i < ARRAYSIZE(GlobalSettings.HardDisks); ++i)
{
if (GlobalSettings.HardDisks[i].Length != 0 &&
GlobalSettings.HardDisks[i].Buffer &&
GlobalSettings.HardDisks[i].Buffer != L'\0')
{
if (!MountDisk(HARD_DISK, i, GlobalSettings.HardDisks[i].Buffer, FALSE))
{
wprintf(L"FATAL: Failed to mount hard disk file '%wZ'.\n", &GlobalSettings.HardDisks[i]);
EmulatorCleanup();
return FALSE;
}
}
}
/* Refresh the menu state */
UpdateVdmMenuDisks();
/* Initialize the software callback system and register the emulator BOPs */
InitializeInt32();
RegisterBop(BOP_DEBUGGER , EmulatorDebugBreakBop);
// RegisterBop(BOP_UNSIMULATE, CpuUnsimulateBop);
/* Initialize VDD support */
VDDSupInitialize();
return TRUE;
}