2 * Interrupt vectors emulation
4 * Copyright 1995 Alexandre Julliard
9 #include "wine/winbase16.h"
13 #include "debugtools.h"
15 DEFAULT_DEBUG_CHANNEL(int);
17 static FARPROC16 INT_Vectors
[256];
19 /* Ordinal number for interrupt 0 handler in WPROCS.DLL */
20 #define FIRST_INTERRUPT 100
23 /**********************************************************************
26 * Return the protected mode interrupt vector for a given interrupt.
28 FARPROC16
INT_GetPMHandler( BYTE intnum
)
30 if (!INT_Vectors
[intnum
])
32 static HMODULE16 wprocs
;
35 if ((wprocs
= GetModuleHandle16( "wprocs" )) < 32)
37 ERR("could not load wprocs.dll\n");
41 INT_Vectors
[intnum
] = NE_GetEntryPoint( wprocs
, FIRST_INTERRUPT
+ intnum
);
43 return INT_Vectors
[intnum
];
47 /**********************************************************************
50 * Set the protected mode interrupt handler for a given interrupt.
52 void INT_SetPMHandler( BYTE intnum
, FARPROC16 handler
)
54 TRACE("Set protected mode interrupt vector %02x <- %04x:%04x\n",
55 intnum
, HIWORD(handler
), LOWORD(handler
) );
56 INT_Vectors
[intnum
] = handler
;
60 /**********************************************************************
63 * Return the real mode interrupt vector for a given interrupt.
65 FARPROC16
INT_GetRMHandler( BYTE intnum
)
67 return ((FARPROC16
*)DOSMEM_MemoryBase(0))[intnum
];
71 /**********************************************************************
74 * Set the real mode interrupt handler for a given interrupt.
76 void INT_SetRMHandler( BYTE intnum
, FARPROC16 handler
)
78 TRACE("Set real mode interrupt vector %02x <- %04x:%04x\n",
79 intnum
, HIWORD(handler
), LOWORD(handler
) );
80 ((FARPROC16
*)DOSMEM_MemoryBase(0))[intnum
] = handler
;
84 /**********************************************************************
87 * Return the interrupt vector for a given interrupt.
89 FARPROC16
INT_CtxGetHandler( CONTEXT86
*context
, BYTE intnum
)
92 return ((FARPROC16
*)V86BASE(context
))[intnum
];
94 return INT_GetPMHandler(intnum
);
98 /**********************************************************************
101 * Set the interrupt handler for a given interrupt.
103 void INT_CtxSetHandler( CONTEXT86
*context
, BYTE intnum
, FARPROC16 handler
)
105 if (ISV86(context
)) {
106 TRACE("Set real mode interrupt vector %02x <- %04x:%04x\n",
107 intnum
, HIWORD(handler
), LOWORD(handler
) );
108 ((FARPROC16
*)V86BASE(context
))[intnum
] = handler
;
110 INT_SetPMHandler(intnum
, handler
);
114 /**********************************************************************
115 * INT_RealModeInterrupt
117 * Handle real mode interrupts
119 int INT_RealModeInterrupt( BYTE intnum
, CONTEXT86
*context
)
121 /* we should really map to if1632/wprocs.spec, but not all
122 * interrupt handlers are adapted to support real mode yet */
125 INT_Int09Handler(context
);
128 INT_Int10Handler(context
);
131 INT_Int11Handler(context
);
134 INT_Int12Handler(context
);
137 INT_Int13Handler(context
);
140 INT_Int15Handler(context
);
143 INT_Int16Handler(context
);
146 INT_Int17Handler(context
);
149 INT_Int1aHandler(context
);
152 INT_Int20Handler(context
);
158 INT_Int25Handler(context
);
161 INT_Int29Handler(context
);
164 INT_Int2aHandler(context
);
167 INT_Int2fHandler(context
);
170 INT_Int31Handler(context
);
173 INT_Int33Handler(context
);
176 FIXME("Unknown Interrupt in DOS mode: 0x%x\n", intnum
);