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[NTVDM]: Load a BIOS image in case its name is given in BiosInitialize.

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svn path=/branches/ntvdm/; revision=62236
This commit is contained in:
Hermès Bélusca-Maïto 2014-02-17 22:50:41 +00:00
parent 574f922049
commit 9b24de4f64
1 changed files with 114 additions and 2 deletions
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116
subsystems/ntvdm/bios/bios.c
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@ -10,6 +10,7 @@
#define NDEBUG
#include "emulator.h"
#include "bios.h"
/* PRIVATE VARIABLES **********************************************************/
@ -24,8 +25,119 @@ BOOLEAN BiosInitialize(IN LPCWSTR BiosFileName,
IN HANDLE ConsoleInput,
IN HANDLE ConsoleOutput)
{
Bios32Loaded = Bios32Initialize(ConsoleInput, ConsoleOutput);
return Bios32Loaded;
if (BiosFileName)
{
BOOL Success;
HANDLE hBiosFile;
DWORD BiosSize;
/* Open the BIOS file */
SetLastError(0); // For debugging purposes
hBiosFile = CreateFileW(BiosFileName,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
DPRINT1("BIOS opening %s ; GetLastError() = %u\n", hBiosFile != INVALID_HANDLE_VALUE ? "succeeded" : "failed", GetLastError());
/* If we failed, bail out */
if (hBiosFile == INVALID_HANDLE_VALUE) return FALSE;
/* OK, we have a handle to the BIOS file */
/*
* Retrieve the size of the file. Since the size of the BIOS file
* should be at most 64kB, we just use GetFileSize.
*/
BiosSize = GetFileSize(hBiosFile, NULL);
if (BiosSize == INVALID_FILE_SIZE && GetLastError() != ERROR_SUCCESS)
{
/* We failed, return failure */
/* Close the BIOS file */
CloseHandle(hBiosFile);
return FALSE;
}
DisplayMessage(L"First bytes at 0x%p: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n"
L"3 last bytes at 0x%p: 0x%02x 0x%02x 0x%02x",
(PVOID)((ULONG_PTR)TO_LINEAR(0xF000, 0xFFFF) + 1 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 1 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 2 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 3 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 4 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 5 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 6 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 7 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 8 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 9 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 0xa - BiosSize),
(PVOID)((ULONG_PTR)TO_LINEAR(0xF000, 0xFFFF) - 2),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) - 2),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) - 1),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) - 0));
/* Attempt to load the BIOS file into memory */
SetLastError(0); // For debugging purposes
Success = ReadFile(hBiosFile,
(PVOID)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 1 - BiosSize),
/* (PVOID)((ULONG_PTR)BaseAddress + ROM_AREA_END + 1 - BiosSize) */
BiosSize,
&BiosSize,
NULL);
DPRINT1("BIOS loading %s ; GetLastError() = %u\n", Success ? "succeeded" : "failed", GetLastError());
/* Close the BIOS file */
CloseHandle(hBiosFile);
DisplayMessage(L"First bytes at 0x%p: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n"
L"3 last bytes at 0x%p: 0x%02x 0x%02x 0x%02x",
(PVOID)((ULONG_PTR)TO_LINEAR(0xF000, 0xFFFF) + 1 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 1 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 2 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 3 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 4 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 5 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 6 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 7 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 8 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 9 - BiosSize),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) + 0xa - BiosSize),
(PVOID)((ULONG_PTR)TO_LINEAR(0xF000, 0xFFFF) - 2),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) - 2),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) - 1),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(0xF000, 0xFFFF) - 0));
DisplayMessage(L"POST at 0x%p: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x",
TO_LINEAR(getCS(), getIP()),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(getCS(), getIP()) + 0),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(getCS(), getIP()) + 1),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(getCS(), getIP()) + 2),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(getCS(), getIP()) + 3),
*(PCHAR)((ULONG_PTR)SEG_OFF_TO_PTR(getCS(), getIP()) + 4));
/* Boot it up */
/*
* The CPU is already in reset-mode so that
* CS:IP points to F000:FFF0 as required.
*/
DisplayMessage(L"CS=0x%p ; IP=0x%p", getCS(), getIP());
// setCS(0xF000);
// setIP(0xFFF0);
return TRUE;
}
else
{
Bios32Loaded = Bios32Initialize(ConsoleInput, ConsoleOutput);
return Bios32Loaded;
}
}
VOID BiosCleanup(VOID)