[NTVDM]

[reactos.git] / subsystems / ntvdm / bios.h

diff --git a/subsystems/ntvdm/bios.h b/subsystems/ntvdm/bios.h
index c3e2b01..01c7d3d 100644 (file)
--- a/subsystems/ntvdm/bios.h
+++ b/subsystems/ntvdm/bios.h
@@ -15,22 +15,116 @@
 
 /* DEFINES ********************************************************************/
 
-#define CONSOLE_VIDEO_MEM_START 0xB8000
-#define CONSOLE_VIDEO_MEM_END 0xBFFFF
-#define ROM_AREA_START 0xC0000
+#define ROM_AREA_START 0xE0000
 #define ROM_AREA_END 0xFFFFF
+#define BDA_SEGMENT 0x40
 #define BIOS_PIC_MASTER_INT 0x08
 #define BIOS_PIC_SLAVE_INT 0x70
 #define BIOS_SEGMENT 0xF000
-#define VIDEO_BIOS_INTERRUPT 0x10
+
+#define BIOS_VIDEO_INTERRUPT 0x10
+#define BIOS_EQUIPMENT_INTERRUPT 0x11
+#define BIOS_KBD_INTERRUPT 0x16
+#define BIOS_TIME_INTERRUPT 0x1A
+#define BIOS_SYS_TIMER_INTERRUPT 0x1C
+
 #define CONSOLE_FONT_HEIGHT 8
+#define BIOS_KBD_BUFFER_SIZE 16
+#define BIOS_EQUIPMENT_LIST 0x2C // HACK: Disable FPU for now
+#define BIOS_DEFAULT_VIDEO_MODE 0x03
+#define BIOS_MAX_PAGES 8
+#define BIOS_PAGE_SIZE 0x1000
+#define BIOS_MAX_VIDEO_MODE 0x13
+#define DEFAULT_ATTRIBUTE 0x07
+#define GRAPHICS_VIDEO_SEG 0xA000
+#define TEXT_VIDEO_SEG 0xB800
+
+enum
+{
+    SCROLL_DIRECTION_UP,
+    SCROLL_DIRECTION_DOWN,
+    SCROLL_DIRECTION_LEFT,
+    SCROLL_DIRECTION_RIGHT
+};
+
+#pragma pack(push, 1)
+
+typedef struct
+{
+    WORD SerialPorts[4];
+    WORD ParallelPorts[3];
+    WORD EbdaSegment;       // Sometimes, ParallelPort
+    WORD EquipmentList;
+    BYTE Reserved0;         // Errors in PCjr infrared keyboard link
+    WORD MemorySize;
+    WORD Reserved1;         // Scratch pad for manufacturing error tests
+    WORD KeybdShiftFlags;
+    BYTE AlternateKeypad;
+    WORD KeybdBufferHead;
+    WORD KeybdBufferTail;
+    WORD KeybdBuffer[BIOS_KBD_BUFFER_SIZE];
+    BYTE DriveRecalibrate;
+    BYTE DriveMotorStatus;
+    BYTE MotorShutdownCounter;
+    BYTE LastDisketteOperation;
+    BYTE Reserved2[7];
+    BYTE VideoMode;
+    WORD ScreenColumns;
+    WORD VideoPageSize;
+    WORD VideoPageOffset;
+    WORD CursorPosition[BIOS_MAX_PAGES];
+    BYTE CursorEndLine;
+    BYTE CursorStartLine;
+    BYTE VideoPage;
+    WORD CrtBasePort;
+    BYTE CrtModeControl;
+    BYTE CrtColorPaletteMask;
+    DWORD Uptime;
+    BYTE Reserved3;
+    DWORD TickCounter;
+    BYTE MidnightPassed;
+    BYTE BreakFlag;
+    WORD SoftReset;
+    BYTE LastDiskOperation;
+    BYTE NumDisks;
+    BYTE DriveControlByte;
+    BYTE DiskPortOffset;
+    BYTE LptTimeOut[4];
+    BYTE ComTimeOut[4];
+    WORD KeybdBufferStart;
+    WORD KeybdBufferEnd;
+    BYTE ScreenRows;
+    WORD CharacterHeight;
+} BIOS_DATA_AREA, *PBIOS_DATA_AREA;
+
+#pragma pack(pop)
 
 /* FUNCTIONS ******************************************************************/
 
-BOOLEAN BiosInitialize();
-VOID BiosUpdateConsole(ULONG StartAddress, ULONG EndAddress);
-VOID BiosUpdateVideoMemory(ULONG StartAddress, ULONG EndAddress);
-VOID BiosVideoService();
-VOID BiosHandleIrq(BYTE IrqNumber);
+extern PBIOS_DATA_AREA Bda;
+
+BOOLEAN BiosInitialize(VOID);
+VOID BiosCleanup(VOID);
+BYTE BiosGetVideoMode(VOID);
+BOOLEAN BiosSetVideoMode(BYTE ModeNumber);
+WORD BiosPeekCharacter(VOID);
+WORD BiosGetCharacter(VOID);
+VOID BiosSetCursorPosition(BYTE Row, BYTE Column, BYTE Page);
+VOID BiosVideoService(LPWORD Stack);
+VOID BiosEquipmentService(LPWORD Stack);
+VOID BiosKeyboardService(LPWORD Stack);
+VOID BiosTimeService(LPWORD Stack);
+VOID BiosHandleIrq(BYTE IrqNumber, LPWORD Stack);
+VOID BiosSystemTimerInterrupt(LPWORD Stack);
+VOID BiosPrintCharacter(CHAR Character, BYTE Attribute, BYTE Page);
+BOOLEAN BiosScrollWindow(
+    INT Direction,
+    DWORD Amount,
+    SMALL_RECT Rectangle,
+    BYTE Page,
+    BYTE FillAttribute
+);
+
+#endif // _BIOS_H_
 
-#endif
+/* EOF */