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[NTVDM]
Add video pages support to INT 10h functions and memory access. [SOFTX86] Fix the opcode check for XLAT. svn path=/branches/ntvdm/; revision=59454
This commit is contained in:
Aleksandar Andrejevic
parent
25cbe37d30
commit
be1d88e4b7
2 changed files with 97 additions and 18 deletions
4
lib/3rdparty/softx86/softx86/mov.c
vendored
4
lib/3rdparty/softx86/softx86/mov.c
vendored
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@ -219,7 +219,7 @@ int Sfx86OpcodeExec_xlat(sx86_ubyte opcode,softx86_ctx* ctx)
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else
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seg = ctx->state->segment_override;
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if ((opcode&0xFC) == 0xD7) { // MOV reg,reg/mem or reg/mem,reg
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if (opcode == 0xD7) { // MOV reg,reg/mem or reg/mem,reg
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sx86_ubyte d;
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sx86_udword ofs;
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@ -239,7 +239,7 @@ int Sfx86OpcodeExec_xlat(sx86_ubyte opcode,softx86_ctx* ctx)
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int Sfx86OpcodeDec_xlat(sx86_ubyte opcode,softx86_ctx* ctx,char buf[128])
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{
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if ((opcode&0xFC) == 0xD7) { // XLAT
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if (opcode == 0xD7) { // XLAT
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strcpy(buf,"XLAT");
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return 1;
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}
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@ -72,11 +72,31 @@ static INT BiosColorNumberToBits(DWORD Colors)
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return i;
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}
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static DWORD BiosGetVideoPageSize()
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{
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INT i;
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DWORD BufferSize = VideoModes[CurrentVideoMode].Width
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* VideoModes[CurrentVideoMode].Height
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* BiosColorNumberToBits(VideoModes[CurrentVideoMode].Colors)
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/ 8;
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for (i = 0; i < 32; i++) if ((1 << i) >= BufferSize) break;
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return 1 << i;
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}
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static BYTE BiosVideoAddressToPage(ULONG Address)
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{
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return (Address - (VideoModes[CurrentVideoMode].Segment << 4))
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/ BiosGetVideoPageSize();
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}
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static COORD BiosVideoAddressToCoord(ULONG Address)
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{
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COORD Result = {0, 0};
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INT BitsPerPixel;
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DWORD Offset = Address - (VideoModes[CurrentVideoMode].Segment << 4);
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BYTE PageStart = BiosVideoAddressToPage(Address) * BiosGetVideoPageSize();
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DWORD Offset = Address - (VideoModes[CurrentVideoMode].Segment << 4) - PageStart;
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if (VideoModes[CurrentVideoMode].Text)
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{
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@ -403,6 +423,7 @@ VOID BiosUpdateConsole(ULONG StartAddress, ULONG EndAddress)
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{
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ULONG i;
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COORD Coordinates;
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BYTE Page;
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COORD Origin = { 0, 0 };
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COORD UnitSize = { 1, 1 };
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CHAR_INFO Character;
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@ -419,6 +440,12 @@ VOID BiosUpdateConsole(ULONG StartAddress, ULONG EndAddress)
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/* Get the coordinates */
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Coordinates = BiosVideoAddressToCoord(i);
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/* Get the page number */
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Page = BiosVideoAddressToPage(i);
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/* Make sure the page is valid */
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if (Page >= VideoModes[CurrentVideoMode].Pages) continue;
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/* Fill the rectangle structure */
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Rect.Left = Coordinates.X;
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Rect.Top = Coordinates.Y;
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@ -430,7 +457,7 @@ VOID BiosUpdateConsole(ULONG StartAddress, ULONG EndAddress)
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Character.Attributes = *((PBYTE)((ULONG_PTR)BaseAddress + i + 1));
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/* Write the character */
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WriteConsoleOutputA(BiosConsoleOutput,
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WriteConsoleOutputA(ConsoleBuffers[Page],
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&Character,
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UnitSize,
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Origin,
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@ -480,6 +507,7 @@ VOID BiosUpdateVideoMemory(ULONG StartAddress, ULONG EndAddress)
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{
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ULONG i;
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COORD Coordinates;
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BYTE Page;
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WORD Attribute;
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DWORD CharsWritten;
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@ -491,11 +519,17 @@ VOID BiosUpdateVideoMemory(ULONG StartAddress, ULONG EndAddress)
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/* Get the coordinates */
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Coordinates = BiosVideoAddressToCoord(i);
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/* Get the page number */
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Page = BiosVideoAddressToPage(i);
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/* Make sure the page is valid */
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if (Page >= VideoModes[CurrentVideoMode].Pages) continue;
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/* Check if this is a character byte or an attribute byte */
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if ((i - (VideoModes[CurrentVideoMode].Segment << 4)) % 2 == 0)
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{
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/* This is a regular character */
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ReadConsoleOutputCharacterA(BiosConsoleOutput,
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ReadConsoleOutputCharacterA(ConsoleBuffers[Page],
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(LPSTR)((ULONG_PTR)BaseAddress + i),
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sizeof(CHAR),
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Coordinates,
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@ -504,7 +538,7 @@ VOID BiosUpdateVideoMemory(ULONG StartAddress, ULONG EndAddress)
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else
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{
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/* This is an attribute */
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ReadConsoleOutputAttribute(BiosConsoleOutput,
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ReadConsoleOutputAttribute(ConsoleBuffers[Page],
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&Attribute,
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sizeof(CHAR),
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Coordinates,
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@ -614,7 +648,7 @@ VOID BiosVideoService()
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/* Set the cursor */
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CursorInfo.dwSize = (CursorHeight * 100) / CONSOLE_FONT_HEIGHT;
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CursorInfo.bVisible = !Invisible;
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SetConsoleCursorInfo(BiosConsoleOutput, &CursorInfo);
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SetConsoleCursorInfo(ConsoleBuffers[CurrentVideoPage], &CursorInfo);
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break;
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}
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@ -622,10 +656,13 @@ VOID BiosVideoService()
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/* Set Cursor Position */
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case 0x02:
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{
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/* Make sure the selected video page exists */
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if (HIBYTE(Ebx) >= VideoModes[CurrentVideoMode].Pages) break;
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Position.X = LOBYTE(Edx);
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Position.Y = HIBYTE(Edx);
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SetConsoleCursorPosition(BiosConsoleOutput, Position);
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SetConsoleCursorPosition(ConsoleBuffers[HIBYTE(Ebx)], Position);
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break;
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}
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@ -634,9 +671,13 @@ VOID BiosVideoService()
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{
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INT StartLine;
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/* Make sure the selected video page exists */
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if (HIBYTE(Ebx) >= VideoModes[CurrentVideoMode].Pages) break;
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/* Retrieve the data */
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GetConsoleCursorInfo(BiosConsoleOutput, &CursorInfo);
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GetConsoleScreenBufferInfo(BiosConsoleOutput, &ScreenBufferInfo);
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GetConsoleCursorInfo(ConsoleBuffers[HIBYTE(Ebx)], &CursorInfo);
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GetConsoleScreenBufferInfo(ConsoleBuffers[HIBYTE(Ebx)],
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&ScreenBufferInfo);
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/* Find the first line */
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StartLine = 32 - ((CursorInfo.dwSize * 32) / 100);
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@ -650,6 +691,28 @@ VOID BiosVideoService()
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break;
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}
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/* Select Active Display Page */
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case 0x05:
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{
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/* Check if the page exists */
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if (LOBYTE(Eax) >= VideoModes[CurrentVideoMode].Pages) break;
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/* Check if this is the same page */
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if (LOBYTE(Eax) == CurrentVideoPage) break;
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/* Change the video page */
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CurrentVideoPage = LOBYTE(Eax);
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/* Set the active page console buffer */
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SetConsoleActiveScreenBuffer(ConsoleBuffers[CurrentVideoPage]);
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/* Restore the cursor to (0, 0) */
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Position.X = Position.Y = 0;
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SetConsoleCursorPosition(BiosConsoleOutput, Position);
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break;
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}
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/* Scroll Up/Down Window */
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case 0x06:
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case 0x07:
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@ -664,7 +727,7 @@ VOID BiosVideoService()
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if (HIBYTE(Eax) == 0x06) Position.Y = Rect.Top - LOBYTE(Eax);
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else Position.Y = Rect.Top + LOBYTE(Eax);
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ScrollConsoleScreenBuffer(BiosConsoleOutput,
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ScrollConsoleScreenBuffer(ConsoleBuffers[CurrentVideoPage],
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&Rect,
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&Rect,
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Position,
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@ -677,15 +740,23 @@ VOID BiosVideoService()
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{
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COORD BufferSize = { 1, 1 }, Origin = { 0, 0 };
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/* Make sure the selected video page exists */
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if (HIBYTE(Ebx) >= VideoModes[CurrentVideoMode].Pages) break;
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/* Get the cursor position */
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GetConsoleScreenBufferInfo(BiosConsoleOutput, &ScreenBufferInfo);
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GetConsoleScreenBufferInfo(ConsoleBuffers[HIBYTE(Ebx)],
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&ScreenBufferInfo);
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/* Read at cursor position */
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Rect.Left = ScreenBufferInfo.dwCursorPosition.X;
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Rect.Top = ScreenBufferInfo.dwCursorPosition.Y;
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/* Read the console output */
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ReadConsoleOutput(BiosConsoleOutput, &Character, BufferSize, Origin, &Rect);
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ReadConsoleOutput(ConsoleBuffers[HIBYTE(Ebx)],
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&Character,
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BufferSize,
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Origin,
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&Rect);
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/* Return the result */
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EmulatorSetRegister(EMULATOR_REG_AX,
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@ -700,18 +771,22 @@ VOID BiosVideoService()
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{
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DWORD CharsWritten;
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/* Make sure the selected video page exists */
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if (HIBYTE(Ebx) >= VideoModes[CurrentVideoMode].Pages) break;
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/* Get the cursor position */
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GetConsoleScreenBufferInfo(BiosConsoleOutput, &ScreenBufferInfo);
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GetConsoleScreenBufferInfo(ConsoleBuffers[HIBYTE(Ebx)],
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&ScreenBufferInfo);
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/* Write the attribute to the output */
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FillConsoleOutputAttribute(BiosConsoleOutput,
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FillConsoleOutputAttribute(ConsoleBuffers[HIBYTE(Ebx)],
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LOBYTE(Ebx),
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LOWORD(Ecx),
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ScreenBufferInfo.dwCursorPosition,
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&CharsWritten);
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/* Write the character to the output */
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FillConsoleOutputCharacterA(BiosConsoleOutput,
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FillConsoleOutputCharacterA(ConsoleBuffers[HIBYTE(Ebx)],
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LOBYTE(Eax),
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LOWORD(Ecx),
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ScreenBufferInfo.dwCursorPosition,
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@ -725,11 +800,15 @@ VOID BiosVideoService()
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{
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DWORD CharsWritten;
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/* Make sure the selected video page exists */
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if (HIBYTE(Ebx) >= VideoModes[CurrentVideoMode].Pages) break;
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/* Get the cursor position */
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GetConsoleScreenBufferInfo(BiosConsoleOutput, &ScreenBufferInfo);
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GetConsoleScreenBufferInfo(ConsoleBuffers[HIBYTE(Ebx)],
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&ScreenBufferInfo);
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/* Write the character to the output */
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FillConsoleOutputCharacterA(BiosConsoleOutput,
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FillConsoleOutputCharacterA(ConsoleBuffers[HIBYTE(Ebx)],
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LOBYTE(Eax),
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LOWORD(Ecx),
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ScreenBufferInfo.dwCursorPosition,
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