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