ReactOS  0.4.13-dev-651-g5dbc677
int32.c File Reference
#include "ntvdm.h"
#include <debug.h>
#include "emulator.h"
#include "int32.h"
#include "cpu/bop.h"
#include <isvbop.h>
Include dependency graph for int32.c:

Go to the source code of this file.

Macros

#define NDEBUG
 
#define BOP_CONTROL   0xFF
 
#define BOP_CONTROL_DEFFUNC   0x00
 
#define BOP_CONTROL_INT32   0xFF
 
#define INT16_TRAMPOLINE_SIZE   sizeof(ULONGLONG)
 

Functions

 C_ASSERT (sizeof(Int16To32)==Int16To32StubSize)
 
static VOID WINAPI Int32Dispatch (LPWORD Stack)
 
static VOID WINAPI ControlBop (LPWORD Stack)
 
ULONG RegisterInt16 (IN ULONG FarPtr, IN BYTE IntNumber, IN LPBYTE CallbackCode, IN SIZE_T CallbackSize, OUT PSIZE_T CodeSize OPTIONAL)
 
ULONG RegisterInt32 (IN ULONG FarPtr, IN BYTE IntNumber, IN EMULATOR_INT32_PROC IntHandler, OUT PSIZE_T CodeSize OPTIONAL)
 
VOID Int32Call (IN PCALLBACK16 Context, IN BYTE IntNumber)
 
VOID InitializeInt32 (VOID)
 

Variables

static EMULATOR_INT32_PROC Int32Proc [EMULATOR_MAX_INT32_NUM] = { NULL }
 
static BYTE Int16To32 []
 

Macro Definition Documentation

◆ BOP_CONTROL

#define BOP_CONTROL   0xFF

Definition at line 31 of file int32.c.

◆ BOP_CONTROL_DEFFUNC

#define BOP_CONTROL_DEFFUNC   0x00

Definition at line 32 of file int32.c.

◆ BOP_CONTROL_INT32

#define BOP_CONTROL_INT32   0xFF

Definition at line 33 of file int32.c.

◆ INT16_TRAMPOLINE_SIZE

#define INT16_TRAMPOLINE_SIZE   sizeof(ULONGLONG)

Definition at line 35 of file int32.c.

◆ NDEBUG

#define NDEBUG

Definition at line 14 of file int32.c.

Function Documentation

◆ C_ASSERT()

C_ASSERT ( sizeof(Int16To32 = =Int16To32StubSize)

◆ ControlBop()

static VOID WINAPI ControlBop ( LPWORD  Stack)
static

Definition at line 80 of file int32.c.

81 {
82  /* Get the Function Number and skip it */
83  BYTE FuncNum = *(PBYTE)SEG_OFF_TO_PTR(getCS(), getIP());
84  setIP(getIP() + 1);
85 
86  switch (FuncNum)
87  {
88  case BOP_CONTROL_INT32:
89  Int32Dispatch(Stack);
90  break;
91 
92  default:
93  // DPRINT1("Unassigned Control BOP Function: 0x%02X\n", FuncNum);
94  DisplayMessage(L"Unassigned Control BOP Function: 0x%02X", FuncNum);
95  break;
96  }
97 }
VOID WINAPI setIP(USHORT)
Definition: registers.c:471
#define SEG_OFF_TO_PTR(seg, off)
Definition: emulator.h:28
USHORT WINAPI getIP(VOID)
Definition: registers.c:464
#define BOP_CONTROL_INT32
Definition: int32.c:33
static VOID WINAPI Int32Dispatch(LPWORD Stack)
Definition: int32.c:68
static const WCHAR L[]
Definition: oid.c:1250
unsigned char BYTE
Definition: mem.h:68
void DisplayMessage(BOOL bConsole, BOOL bSilent, LPCTSTR lpMessage, LPCTSTR lpTitle, UINT uType)
Definition: regsvr32.c:239
USHORT WINAPI getCS(VOID)
Definition: registers.c:480
BYTE * PBYTE
Definition: pedump.c:66

Referenced by InitializeInt32().

◆ InitializeInt32()

VOID InitializeInt32 ( VOID  )

Definition at line 194 of file int32.c.

195 {
196  /* Register the Control BOP */
198 }
VOID RegisterBop(BYTE BopCode, EMULATOR_BOP_PROC BopHandler)
Definition: bop.c:29
static VOID WINAPI ControlBop(LPWORD Stack)
Definition: int32.c:80
#define BOP_CONTROL
Definition: int32.c:31

Referenced by EmulatorInitialize().

◆ Int32Call()

VOID Int32Call ( IN PCALLBACK16  Context,
IN BYTE  IntNumber 
)

*Trampoline++ = 0x90; // nop

Definition at line 151 of file int32.c.

153 {
154  /*
155  * TODO: This function has almost the same code as RunCallback16.
156  * Something that may be nice is to have a common interface to
157  * build the trampoline...
158  */
159 
160  PUCHAR TrampolineBase = (PUCHAR)FAR_POINTER(Context->TrampolineFarPtr);
161  PUCHAR Trampoline = TrampolineBase;
162  UCHAR OldTrampoline[INT16_TRAMPOLINE_SIZE];
163 
164  DPRINT("Int32Call(0x%02X)\n", IntNumber);
165 
166  ASSERT(Context->TrampolineSize == INT16_TRAMPOLINE_SIZE);
167 
168  /* Save the old trampoline */
169  ((PULONGLONG)&OldTrampoline)[0] = ((PULONGLONG)TrampolineBase)[0];
170 
171  /* Build the generic entry-point for 16-bit calls */
172  if (IntNumber == 0x03)
173  {
174  /* We are redefining for INT 03h */
175  *Trampoline++ = 0xCC; // Call INT 03h
177  }
178  else
179  {
180  /* Normal interrupt */
181  *Trampoline++ = 0xCD; // Call INT XXh
182  *Trampoline++ = IntNumber;
183  }
184  UnSimulate16(Trampoline);
185 
186  /* Perform the call */
187  Call16(HIWORD(Context->TrampolineFarPtr),
188  LOWORD(Context->TrampolineFarPtr));
189 
190  /* Restore the old trampoline */
191  ((PULONGLONG)TrampolineBase)[0] = ((PULONGLONG)&OldTrampoline)[0];
192 }
unsigned char * PUCHAR
Definition: retypes.h:3
void DPRINT(...)
Definition: polytest.cpp:61
#define FAR_POINTER(x)
Definition: emulator.h:31
ASSERT((InvokeOnSuccess||InvokeOnError||InvokeOnCancel) ?(CompletionRoutine !=NULL) :TRUE)
unsigned char UCHAR
Definition: xmlstorage.h:181
#define INT16_TRAMPOLINE_SIZE
Definition: int32.c:35
#define UnSimulate16(trap)
Definition: callback.h:16
__GNU_EXTENSION typedef unsigned __int64 * PULONGLONG
Definition: ntbasedef.h:390
#define HIWORD(l)
Definition: typedefs.h:246
VOID Call16(IN USHORT Segment, IN USHORT Offset)
Definition: callback.c:71
#define LOWORD(l)
Definition: pedump.c:82

Referenced by BiosCharPrint(), BiosKeyboardIrq(), BiosPs2Service(), BiosTimerIrq(), ConDrvInputStatus(), ConDrvReadInput(), ConDrvWriteOutput(), Dem_BiosCharPrint(), DosControlBreak(), DosFastConOut(), and VbeService().

◆ Int32Dispatch()

static VOID WINAPI Int32Dispatch ( LPWORD  Stack)
static

Definition at line 68 of file int32.c.

69 {
70  /* Get the interrupt number */
71  BYTE IntNum = LOBYTE(Stack[STACK_INT_NUM]);
72 
73  /* Call the 32-bit Interrupt handler */
74  if (Int32Proc[IntNum] != NULL)
75  Int32Proc[IntNum](Stack);
76  else
77  DPRINT1("Unhandled 32-bit interrupt: 0x%02X, AX = 0x%04X\n", IntNum, getAX());
78 }
#define STACK_INT_NUM
Definition: int32.h:30
#define LOBYTE(W)
Definition: jmemdos.c:487
static EMULATOR_INT32_PROC Int32Proc[EMULATOR_MAX_INT32_NUM]
Definition: int32.c:28
smooth NULL
Definition: ftsmooth.c:416
USHORT WINAPI getAX(VOID)
Definition: registers.c:114
unsigned char BYTE
Definition: mem.h:68
#define DPRINT1
Definition: precomp.h:8

Referenced by ControlBop().

◆ RegisterInt16()

ULONG RegisterInt16 ( IN ULONG  FarPtr,
IN BYTE  IntNumber,
IN LPBYTE  CallbackCode,
IN SIZE_T  CallbackSize,
OUT PSIZE_T CodeSize  OPTIONAL 
)

Definition at line 100 of file int32.c.

105 {
106  /* Get a pointer to the IVT and set the corresponding entry (far pointer) */
107  LPDWORD IntVecTable = (LPDWORD)SEG_OFF_TO_PTR(0x0000, 0x0000);
108  IntVecTable[IntNumber] = FarPtr;
109 
110  /* Register the 16-bit callback */
111  return RegisterCallback16(FarPtr,
112  CallbackCode,
113  CallbackSize,
114  CodeSize);
115 }
ULONG RegisterCallback16(IN ULONG FarPtr, IN LPBYTE CallbackCode, IN SIZE_T CallbackSize, OUT PSIZE_T CodeSize OPTIONAL)
Definition: callback.c:120
#define SEG_OFF_TO_PTR(seg, off)
Definition: emulator.h:28
#define LPDWORD
Definition: nt_native.h:46
uint32_t * LPDWORD
Definition: typedefs.h:57

Referenced by RegisterInt32().

◆ RegisterInt32()

ULONG RegisterInt32 ( IN ULONG  FarPtr,
IN BYTE  IntNumber,
IN EMULATOR_INT32_PROC  IntHandler,
OUT PSIZE_T CodeSize  OPTIONAL 
)

Definition at line 118 of file int32.c.

122 {
123  /* Array for holding our copy of the 16-bit interrupt callback */
124  BYTE IntCallback[sizeof(Int16To32)/sizeof(BYTE)];
125 
126  /* Check whether the 32-bit interrupt was already registered */
127 #if 0
128  if (Int32Proc[IntNumber] != NULL)
129  {
130  DPRINT1("RegisterInt32: Interrupt 0x%02X already registered!\n", IntNumber);
131  return 0;
132  }
133 #endif
134 
135  /* Register the 32-bit interrupt handler */
136  Int32Proc[IntNumber] = IntHandler;
137 
138  /* Copy the generic 16-bit interrupt callback and patch it */
139  RtlCopyMemory(IntCallback, Int16To32, sizeof(Int16To32));
140  IntCallback[2] = IntNumber;
141 
142  /* Register the 16-bit interrupt callback */
143  return RegisterInt16(FarPtr,
144  IntNumber,
145  IntCallback,
146  sizeof(IntCallback),
147  CodeSize);
148 }
NTSYSAPI VOID NTAPI RtlCopyMemory(VOID UNALIGNED *Destination, CONST VOID UNALIGNED *Source, ULONG Length)
static EMULATOR_INT32_PROC Int32Proc[EMULATOR_MAX_INT32_NUM]
Definition: int32.c:28
static BYTE Int16To32[]
Definition: int32.c:38
smooth NULL
Definition: ftsmooth.c:416
unsigned char BYTE
Definition: mem.h:68
#define DPRINT1
Definition: precomp.h:8
ULONG RegisterInt16(IN ULONG FarPtr, IN BYTE IntNumber, IN LPBYTE CallbackCode, IN SIZE_T CallbackSize, OUT PSIZE_T CodeSize OPTIONAL)
Definition: int32.c:100

Referenced by DosMouseEnable(), DosMouseInitialize(), and EmsDrvInitialize().

Variable Documentation

◆ Int16To32

BYTE Int16To32[]
static
Initial value:
=
{
0xFA,
0x6A, 0xFF,
0xF8,
0x73, 0x04,
0xFB,
0xF4,
0xEB, 0xF6,
0x44, 0x44,
0xCF,
}
#define BOP_CONTROL_INT32
Definition: int32.c:33
#define BOP(num)
Definition: callback.h:15
#define BOP_CONTROL
Definition: int32.c:31

Definition at line 38 of file int32.c.

Referenced by RegisterInt32().

◆ Int32Proc

Definition at line 28 of file int32.c.

Referenced by Int32Dispatch(), and RegisterInt32().