mirror of
https://github.com/reactos/reactos.git
synced 2024-07-23 12:48:01 +00:00
[NTVDM]
Start my work on modularizing registration of "32-bit" interrupts, i.e. interrupts that are implemented in 32-bit mode, but are stubbed with 16-bit code (so that 16-bit apps can call them). The 16-bit stub code uses a BOP call to our Control BOP function (BOP 0xFF) which can handle in theory many sub-functions (as the BOP 0x58 documented here: http://www.ragestorm.net/tutorial?id=27) specified as an additional BYTE in the call: 0xC4 0xC4 bop_code <optional_bop_subfunction> Here, for calling 32-bit interrupts we use our BOP 0xFF, subfunction 0xFF. The final aim would be to generate the 16-bit stub code when one calls the RegisterInt32 helper function (contrary to what's happening now, that is, the 16-bit stub code is generated for all of the interrupts at BIOS initialization time, and we use it for BIOS and DOS interrupts). svn path=/branches/ntvdm/; revision=60907
This commit is contained in:
Hermès Bélusca-Maïto
parent
bf61aa1278
commit
6da6a5ce56
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@ -10,8 +10,10 @@
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#define NDEBUG
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#include "bios.h"
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#include "emulator.h"
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#include "bop.h"
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#include "bios.h"
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#include "vga.h"
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#include "pic.h"
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#include "ps2.h"
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@ -461,7 +463,7 @@ BOOLEAN BiosInitialize(VOID)
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{
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USHORT i;
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WORD Offset = 0;
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LPWORD IntVecTable = (LPWORD)BaseAddress;
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LPDWORD IntVecTable = (LPDWORD)BaseAddress;
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LPBYTE BiosCode = (LPBYTE)SEG_OFF_TO_PTR(BIOS_SEGMENT, 0);
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/* Initialize the BDA */
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@ -480,8 +482,7 @@ BOOLEAN BiosInitialize(VOID)
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/* Generate ISR stubs and fill the IVT */
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for (i = 0x00; i <= 0xFF; i++)
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{
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IntVecTable[i * 2] = Offset;
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IntVecTable[i * 2 + 1] = BIOS_SEGMENT;
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IntVecTable[i] = MAKELONG(Offset, BIOS_SEGMENT);
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BiosCode[Offset++] = 0xFB; // sti
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@ -494,9 +495,10 @@ BOOLEAN BiosInitialize(VOID)
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// BOP_SEQ:
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BiosCode[Offset++] = 0xF8; // clc
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BiosCode[Offset++] = LOBYTE(EMULATOR_BOP); // BOP sequence
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BiosCode[Offset++] = LOBYTE(EMULATOR_BOP); // BOP sequence
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BiosCode[Offset++] = HIBYTE(EMULATOR_BOP);
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BiosCode[Offset++] = EMULATOR_INT_BOP;
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BiosCode[Offset++] = EMULATOR_CTRL_BOP; // Control BOP
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BiosCode[Offset++] = CTRL_BOP_INT32; // 32-bit Interrupt dispatcher
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BiosCode[Offset++] = 0x73; // jnc EXIT (offset +3)
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BiosCode[Offset++] = 0x03;
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@ -504,8 +506,8 @@ BOOLEAN BiosInitialize(VOID)
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// HACK: The following instruction should be HLT!
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BiosCode[Offset++] = 0x90; // nop
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BiosCode[Offset++] = 0xEB; // jmp BOP_SEQ (offset -9)
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BiosCode[Offset++] = 0xF7;
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BiosCode[Offset++] = 0xEB; // jmp BOP_SEQ (offset -10)
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BiosCode[Offset++] = 0xF6;
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// EXIT:
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BiosCode[Offset++] = 0x83; // add sp, 4
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@ -514,6 +516,12 @@ BOOLEAN BiosInitialize(VOID)
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BiosCode[Offset++] = 0xCF; // iret
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}
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RegisterInt32(BIOS_VIDEO_INTERRUPT , BiosVideoService );
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RegisterInt32(BIOS_EQUIPMENT_INTERRUPT, BiosEquipmentService );
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RegisterInt32(BIOS_MEMORY_SIZE , BiosGetMemorySize );
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RegisterInt32(BIOS_KBD_INTERRUPT , BiosKeyboardService );
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RegisterInt32(BIOS_TIME_INTERRUPT , BiosTimeService );
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RegisterInt32(BIOS_SYS_TIMER_INTERRUPT, BiosSystemTimerInterrupt);
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/* Get the input handle to the real console, and check for success */
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BiosConsoleInput = CreateFileW(L"CONIN$",
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@ -818,7 +826,7 @@ VOID BiosPrintCharacter(CHAR Character, BYTE Attribute, BYTE Page)
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BiosSetCursorPosition(Row, Column, Page);
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}
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VOID BiosVideoService(LPWORD Stack)
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VOID WINAPI BiosVideoService(LPWORD Stack)
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{
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switch (getAH())
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{
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@ -1194,19 +1202,19 @@ VOID BiosVideoService(LPWORD Stack)
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}
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}
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VOID BiosEquipmentService(LPWORD Stack)
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VOID WINAPI BiosEquipmentService(LPWORD Stack)
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{
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/* Return the equipment list */
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setAX(Bda->EquipmentList);
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}
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VOID BiosGetMemorySize(LPWORD Stack)
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VOID WINAPI BiosGetMemorySize(LPWORD Stack)
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{
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/* Return the conventional memory size in kB, typically 640 kB */
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setAX(Bda->MemorySize);
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}
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VOID BiosKeyboardService(LPWORD Stack)
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VOID WINAPI BiosKeyboardService(LPWORD Stack)
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{
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switch (getAH())
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{
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@ -1288,7 +1296,7 @@ VOID BiosKeyboardService(LPWORD Stack)
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}
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}
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VOID BiosTimeService(LPWORD Stack)
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VOID WINAPI BiosTimeService(LPWORD Stack)
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{
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switch (getAH())
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{
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@ -1326,7 +1334,7 @@ VOID BiosTimeService(LPWORD Stack)
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}
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}
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VOID BiosSystemTimerInterrupt(LPWORD Stack)
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VOID WINAPI BiosSystemTimerInterrupt(LPWORD Stack)
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{
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/* Increase the system tick count */
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Bda->TickCounter++;
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@ -159,13 +159,6 @@ WORD BiosPeekCharacter(VOID);
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WORD BiosGetCharacter(VOID);
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VOID BiosGetCursorPosition(PBYTE Row, PBYTE Column, BYTE Page);
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VOID BiosSetCursorPosition(BYTE Row, BYTE Column, BYTE Page);
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VOID BiosVideoService(LPWORD Stack);
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VOID BiosEquipmentService(LPWORD Stack);
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VOID BiosGetMemorySize(LPWORD Stack);
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VOID BiosKeyboardService(LPWORD Stack);
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VOID BiosTimeService(LPWORD Stack);
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VOID BiosHandleIrq(BYTE IrqNumber, LPWORD Stack);
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VOID BiosSystemTimerInterrupt(LPWORD Stack);
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VOID BiosPrintCharacter(CHAR Character, BYTE Attribute, BYTE Page);
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BOOLEAN BiosScrollWindow(
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INT Direction,
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@ -175,6 +168,15 @@ BOOLEAN BiosScrollWindow(
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BYTE FillAttribute
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);
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VOID WINAPI BiosVideoService(LPWORD Stack);
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VOID WINAPI BiosEquipmentService(LPWORD Stack);
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VOID WINAPI BiosGetMemorySize(LPWORD Stack);
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VOID WINAPI BiosKeyboardService(LPWORD Stack);
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VOID WINAPI BiosTimeService(LPWORD Stack);
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VOID WINAPI BiosSystemTimerInterrupt(LPWORD Stack);
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VOID BiosHandleIrq(BYTE IrqNumber, LPWORD Stack);
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#endif // _BIOS_H_
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/* EOF */
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@ -12,13 +12,10 @@
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#define NDEBUG
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#include "emulator.h"
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#include "bios.h"
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#include "bop.h"
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#include "bios.h"
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#include "dos.h"
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//#include "vga.h"
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//#include "pic.h"
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//#include "ps2.h"
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//#include "timer.h"
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#include "registers.h"
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LPCWSTR ExceptionName[] =
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@ -33,6 +30,9 @@ LPCWSTR ExceptionName[] =
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L"FPU Not Available"
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};
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/*
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* This is the list of registered BOP handlers.
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*/
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EMULATOR_BOP_PROC BopProc[EMULATOR_MAX_BOP_NUM] =
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{
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NULL,
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@ -293,6 +293,271 @@ EMULATOR_BOP_PROC BopProc[EMULATOR_MAX_BOP_NUM] =
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ControlBop
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};
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/*
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* This is the list of registered 32-bit Interrupt handlers.
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*/
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EMULATOR_INT32_PROC Int32Proc[EMULATOR_MAX_INT_NUM] =
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{
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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};
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VOID WINAPI Exception(BYTE ExceptionNumber, LPWORD Stack)
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{
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WORD CodeSegment, InstructionPointer;
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@ -344,11 +609,7 @@ VOID WINAPI Exception(BYTE ExceptionNumber, LPWORD Stack)
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// return;
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// }
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// VOID WINAPI BiosInt(BYTE IntNumber, LPWORD Stack)
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// {
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// }
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VOID WINAPI IntDispatch(LPWORD Stack)
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VOID WINAPI Int32Dispatch(LPWORD Stack)
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{
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BYTE IntNum;
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@ -376,77 +637,48 @@ VOID WINAPI IntDispatch(LPWORD Stack)
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return;
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}
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switch (IntNum)
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{
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case BIOS_VIDEO_INTERRUPT:
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{
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/* This is the video BIOS interrupt, call the BIOS */
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BiosVideoService(Stack);
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break;
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}
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case BIOS_EQUIPMENT_INTERRUPT:
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{
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/* This is the BIOS "get equipment" command, call the BIOS */
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BiosEquipmentService(Stack);
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break;
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}
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case BIOS_MEMORY_SIZE:
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{
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/* This is the BIOS "get memory size" command, call the BIOS */
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BiosGetMemorySize(Stack);
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break;
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}
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case BIOS_KBD_INTERRUPT:
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{
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/* This is the keyboard BIOS interrupt, call the BIOS */
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BiosKeyboardService(Stack);
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break;
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}
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case BIOS_TIME_INTERRUPT:
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{
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/* This is the time BIOS interrupt, call the BIOS */
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BiosTimeService(Stack);
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break;
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}
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case BIOS_SYS_TIMER_INTERRUPT:
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{
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/* BIOS timer update */
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BiosSystemTimerInterrupt(Stack);
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break;
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}
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case 0x20:
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{
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DosInt20h(Stack);
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break;
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}
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case 0x21:
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{
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DosInt21h(Stack);
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break;
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}
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case 0x23:
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{
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DosBreakInterrupt(Stack);
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break;
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}
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case 0x2F:
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{
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DPRINT1("DOS System Function INT 0x2F, AH = %xh, AL = %xh NOT IMPLEMENTED!\n",
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getAH(), getAL());
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Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
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break;
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}
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default:
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{
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DPRINT1("Unhandled interrupt: 0x%02X\n", IntNum);
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break;
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}
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}
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/* Call the 32-bit Interrupt handler */
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if (Int32Proc[IntNum] != NULL)
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Int32Proc[IntNum](Stack);
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else
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DPRINT1("Unhandled 32-bit interrupt: 0x%02X\n", IntNum);
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}
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VOID WINAPI ControlBop(LPWORD Stack)
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{
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IntDispatch(Stack);
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/* Get the Function Number and skip it */
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BYTE FuncNum = *(PBYTE)SEG_OFF_TO_PTR(getCS(), getIP());
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setIP(getIP() + 1);
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if (FuncNum == CTRL_BOP_INT32)
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Int32Dispatch(Stack);
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else
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DPRINT1("Unassigned Control BOP Function: 0x%02X\n", FuncNum);
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}
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||||
VOID WINAPI RegisterInt32(BYTE IntNumber, EMULATOR_INT32_PROC IntHandler)
|
||||
{
|
||||
Int32Proc[IntNumber] = IntHandler;
|
||||
}
|
||||
|
||||
VOID WINAPI EmulatorBiosOperation(PFAST486_STATE State, UCHAR BopCode)
|
||||
{
|
||||
WORD StackSegment, StackPointer;
|
||||
LPWORD Stack;
|
||||
|
||||
/* Get the SS:SP */
|
||||
StackSegment = State->SegmentRegs[FAST486_REG_SS].Selector;
|
||||
StackPointer = State->GeneralRegs[FAST486_REG_ESP].LowWord;
|
||||
|
||||
/* Get the stack */
|
||||
Stack = (LPWORD)SEG_OFF_TO_PTR(StackSegment, StackPointer);
|
||||
|
||||
/* Call the BOP handler */
|
||||
if (BopProc[BopCode] != NULL)
|
||||
BopProc[BopCode](Stack);
|
||||
else
|
||||
DPRINT1("Invalid BOP code: 0x%02X\n", BopCode);
|
||||
}
|
||||
|
||||
/* EOF */
|
||||
|
|
|
|||
|
|
@ -7,10 +7,33 @@
|
|||
* Hermes Belusca-Maito (hermes.belusca@sfr.fr)
|
||||
*/
|
||||
|
||||
typedef VOID (WINAPI *EMULATOR_BOP_PROC)(LPWORD Stack);
|
||||
#ifndef _BOP_H_
|
||||
#define _BOP_H_
|
||||
|
||||
extern EMULATOR_BOP_PROC BopProc[EMULATOR_MAX_BOP_NUM];
|
||||
/* DEFINES ********************************************************************/
|
||||
|
||||
/* BOP Identifiers */
|
||||
#define EMULATOR_BOP 0xC4C4
|
||||
|
||||
#define EMULATOR_CTRL_BOP 0xFF // Control BOP Handler
|
||||
#define CTRL_BOP_DEFLT 0x00 // Default Control BOP Function
|
||||
#define CTRL_BOP_INT32 0xFF // 32-bit Interrupt dispatcher
|
||||
|
||||
#define EMULATOR_MAX_BOP_NUM 0xFF + 1
|
||||
|
||||
/* 32-bit Interrupt Identifiers */
|
||||
#define EMULATOR_MAX_INT_NUM 0xFF + 1
|
||||
|
||||
/* FUNCTIONS ******************************************************************/
|
||||
|
||||
typedef VOID (WINAPI *EMULATOR_BOP_PROC)(LPWORD Stack);
|
||||
typedef VOID (WINAPI *EMULATOR_INT32_PROC)(LPWORD Stack);
|
||||
|
||||
VOID WINAPI ControlBop(LPWORD Stack);
|
||||
|
||||
VOID WINAPI RegisterInt32(BYTE IntNumber, EMULATOR_INT32_PROC IntHandler);
|
||||
VOID WINAPI EmulatorBiosOperation(PFAST486_STATE State, UCHAR BopCode);
|
||||
|
||||
#endif // _BOP_H_
|
||||
|
||||
/* EOF */
|
||||
|
|
|
|||
|
|
@ -10,9 +10,11 @@
|
|||
|
||||
#define NDEBUG
|
||||
|
||||
#include "emulator.h"
|
||||
#include "bop.h"
|
||||
|
||||
#include "dos.h"
|
||||
#include "bios.h"
|
||||
#include "emulator.h"
|
||||
|
||||
#include "registers.h"
|
||||
|
||||
|
|
@ -1393,13 +1395,13 @@ BOOLEAN DosHandleIoctl(BYTE ControlCode, WORD FileHandle)
|
|||
}
|
||||
}
|
||||
|
||||
VOID DosInt20h(LPWORD Stack)
|
||||
VOID WINAPI DosInt20h(LPWORD Stack)
|
||||
{
|
||||
/* This is the exit interrupt */
|
||||
DosTerminateProcess(Stack[STACK_CS], 0);
|
||||
}
|
||||
|
||||
VOID DosInt21h(LPWORD Stack)
|
||||
VOID WINAPI DosInt21h(LPWORD Stack)
|
||||
{
|
||||
BYTE Character;
|
||||
SYSTEMTIME SystemTime;
|
||||
|
|
@ -2415,13 +2417,20 @@ VOID DosInt21h(LPWORD Stack)
|
|||
}
|
||||
}
|
||||
|
||||
VOID DosBreakInterrupt(LPWORD Stack)
|
||||
VOID WINAPI DosBreakInterrupt(LPWORD Stack)
|
||||
{
|
||||
UNREFERENCED_PARAMETER(Stack);
|
||||
|
||||
VdmRunning = FALSE;
|
||||
}
|
||||
|
||||
VOID WINAPI DosInt2Fh(LPWORD Stack)
|
||||
{
|
||||
DPRINT1("DOS System Function INT 0x2F, AH = %xh, AL = %xh NOT IMPLEMENTED!\n",
|
||||
getAH(), getAL());
|
||||
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
||||
}
|
||||
|
||||
BOOLEAN DosInitialize(VOID)
|
||||
{
|
||||
BYTE i;
|
||||
|
|
@ -2561,6 +2570,12 @@ BOOLEAN DosInitialize(VOID)
|
|||
DosSystemFileTable[1] = GetStdHandle(STD_OUTPUT_HANDLE);
|
||||
DosSystemFileTable[2] = GetStdHandle(STD_ERROR_HANDLE);
|
||||
|
||||
/* Register the DOS-32 Interrupts */
|
||||
RegisterInt32(0x20, DosInt20h );
|
||||
RegisterInt32(0x21, DosInt21h );
|
||||
RegisterInt32(0x23, DosBreakInterrupt);
|
||||
RegisterInt32(0x2F, DosInt2Fh );
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -136,9 +136,12 @@ VOID DosTerminateProcess(WORD Psp, BYTE ReturnCode);
|
|||
CHAR DosReadCharacter(VOID);
|
||||
VOID DosPrintCharacter(CHAR Character);
|
||||
BOOLEAN DosHandleIoctl(BYTE ControlCode, WORD FileHandle);
|
||||
VOID DosInt20h(LPWORD Stack);
|
||||
VOID DosInt21h(LPWORD Stack);
|
||||
VOID DosBreakInterrupt(LPWORD Stack);
|
||||
|
||||
VOID WINAPI DosInt20h(LPWORD Stack);
|
||||
VOID WINAPI DosInt21h(LPWORD Stack);
|
||||
VOID WINAPI DosBreakInterrupt(LPWORD Stack);
|
||||
VOID WINAPI DosInt2Fh(LPWORD Stack);
|
||||
|
||||
BOOLEAN DosInitialize(VOID);
|
||||
|
||||
#endif // _DOS_H_
|
||||
|
|
|
|||
|
|
@ -272,24 +272,6 @@ VOID WINAPI EmulatorWriteIo(PFAST486_STATE State, ULONG Port, PVOID Buffer, ULON
|
|||
}
|
||||
}
|
||||
|
||||
VOID WINAPI EmulatorBiosOperation(PFAST486_STATE State, UCHAR BopCode)
|
||||
{
|
||||
WORD StackSegment, StackPointer;
|
||||
LPWORD Stack;
|
||||
|
||||
/* Get the SS:SP */
|
||||
StackSegment = State->SegmentRegs[FAST486_REG_SS].Selector;
|
||||
StackPointer = State->GeneralRegs[FAST486_REG_ESP].LowWord;
|
||||
|
||||
/* Get the stack */
|
||||
Stack = (LPWORD)SEG_OFF_TO_PTR(StackSegment, StackPointer);
|
||||
|
||||
if (BopProc[BopCode] != NULL)
|
||||
BopProc[BopCode](Stack);
|
||||
else
|
||||
DPRINT1("Invalid BOP code %u\n", BopCode);
|
||||
}
|
||||
|
||||
UCHAR WINAPI EmulatorIntAcknowledge(PFAST486_STATE State)
|
||||
{
|
||||
UNREFERENCED_PARAMETER(State);
|
||||
|
|
|
|||
|
|
@ -120,12 +120,6 @@ VOID WINAPI EmulatorWriteIo
|
|||
UCHAR DataSize
|
||||
);
|
||||
|
||||
VOID WINAPI EmulatorBiosOperation
|
||||
(
|
||||
PFAST486_STATE State,
|
||||
UCHAR BopCode
|
||||
);
|
||||
|
||||
UCHAR WINAPI EmulatorIntAcknowledge
|
||||
(
|
||||
PFAST486_STATE State
|
||||
|
|
|
|||
Loading…
Reference in a new issue