mirror of
git://source.winehq.org/git/wine.git
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739 lines
22 KiB
C
739 lines
22 KiB
C
/*
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* Interrupt emulation
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*
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* Copyright 2002 Jukka Heinonen
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdio.h>
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#include "wine/winbase16.h"
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#include "kernel16_private.h"
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#include "dosexe.h"
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#include "winternl.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(int);
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WINE_DECLARE_DEBUG_CHANNEL(relay);
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#define BCD_TO_BIN(x) ((x&15) + (x>>4)*10)
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#define BIN_TO_BCD(x) ((x%10) + ((x/10)<<4))
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static void WINAPI DOSVM_Int11Handler(CONTEXT*);
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static void WINAPI DOSVM_Int12Handler(CONTEXT*);
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static void WINAPI DOSVM_Int17Handler(CONTEXT*);
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static void WINAPI DOSVM_Int19Handler(CONTEXT*);
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static void WINAPI DOSVM_Int1aHandler(CONTEXT*);
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static void WINAPI DOSVM_Int20Handler(CONTEXT*);
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static void WINAPI DOSVM_Int2aHandler(CONTEXT*);
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static void WINAPI DOSVM_Int41Handler(CONTEXT*);
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static void WINAPI DOSVM_Int4bHandler(CONTEXT*);
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static void WINAPI DOSVM_Int5cHandler(CONTEXT*);
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static void WINAPI DOSVM_DefaultHandler(CONTEXT*);
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static FARPROC16 DOSVM_Vectors16[256];
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static const INTPROC DOSVM_VectorsBuiltin[] =
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{
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/* 00 */ 0, 0, 0, 0,
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/* 04 */ 0, 0, 0, 0,
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/* 08 */ 0, 0, 0, 0,
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/* 0C */ 0, 0, 0, 0,
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/* 10 */ 0, DOSVM_Int11Handler, DOSVM_Int12Handler, 0,
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/* 14 */ 0, DOSVM_Int15Handler, 0, DOSVM_Int17Handler,
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/* 18 */ 0, DOSVM_Int19Handler, DOSVM_Int1aHandler, 0,
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/* 1C */ 0, 0, 0, 0,
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/* 20 */ DOSVM_Int20Handler, DOSVM_Int21Handler, 0, 0,
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/* 24 */ 0, DOSVM_Int25Handler, DOSVM_Int26Handler, 0,
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/* 28 */ 0, 0, DOSVM_Int2aHandler, 0,
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/* 2C */ 0, 0, 0, DOSVM_Int2fHandler,
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/* 30 */ 0, DOSVM_Int31Handler, 0, 0,
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/* 34 */ DOSVM_Int34Handler, DOSVM_Int35Handler, DOSVM_Int36Handler, DOSVM_Int37Handler,
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/* 38 */ DOSVM_Int38Handler, DOSVM_Int39Handler, DOSVM_Int3aHandler, DOSVM_Int3bHandler,
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/* 3C */ DOSVM_Int3cHandler, DOSVM_Int3dHandler, DOSVM_Int3eHandler, 0,
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/* 40 */ 0, DOSVM_Int41Handler, 0, 0,
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/* 44 */ 0, 0, 0, 0,
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/* 48 */ 0, 0, 0, DOSVM_Int4bHandler,
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/* 4C */ 0, 0, 0, 0,
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/* 50 */ 0, 0, 0, 0,
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/* 54 */ 0, 0, 0, 0,
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/* 58 */ 0, 0, 0, 0,
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/* 5C */ DOSVM_Int5cHandler
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};
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/*
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* Sizes of real mode and protected mode interrupt stubs.
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*/
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#define DOSVM_STUB_PM16 5
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/**********************************************************************
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* DOSVM_DefaultHandler
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*
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* Default interrupt handler. This will be used to emulate all
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* interrupts that don't have their own interrupt handler.
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*/
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static void WINAPI DOSVM_DefaultHandler( CONTEXT *context )
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{
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}
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/**********************************************************************
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* DOSVM_Exit
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*/
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void DOSVM_Exit( WORD retval )
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{
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DWORD count;
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ReleaseThunkLock( &count );
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ExitThread( retval );
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}
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/**********************************************************************
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* DOSVM_GetBuiltinHandler
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*
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* Return Wine interrupt handler procedure for a given interrupt.
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*/
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static INTPROC DOSVM_GetBuiltinHandler( BYTE intnum )
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{
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if (intnum < ARRAY_SIZE(DOSVM_VectorsBuiltin)) {
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INTPROC proc = DOSVM_VectorsBuiltin[intnum];
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if (proc)
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return proc;
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}
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WARN("int%x not implemented, returning dummy handler\n", intnum );
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return DOSVM_DefaultHandler;
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}
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/**********************************************************************
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* DOSVM_IntProcRelay
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*
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* Simple DOSRELAY that interprets its argument as INTPROC and calls it.
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*/
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static void DOSVM_IntProcRelay( CONTEXT *context, LPVOID data )
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{
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INTPROC proc = (INTPROC)data;
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proc(context);
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}
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/**********************************************************************
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* DOSVM_PushFlags
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*
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* This routine is used to make default int25 and int26 handlers leave the
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* original eflags into stack. In order to do this, stack is manipulated
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* so that it actually contains two copies of eflags, one of which is
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* popped during return from interrupt handler.
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*/
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static void DOSVM_PushFlags( CONTEXT *context, BOOL islong, BOOL isstub )
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{
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if (islong)
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{
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DWORD *stack = CTX_SEG_OFF_TO_LIN(context,
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context->SegSs,
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context->Esp);
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context->Esp += -4; /* One item will be added to stack. */
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if (isstub)
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{
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DWORD ip = stack[0];
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DWORD cs = stack[1];
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stack += 2; /* Pop ip and cs. */
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*(--stack) = context->EFlags;
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*(--stack) = cs;
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*(--stack) = ip;
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}
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else
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*(--stack) = context->EFlags;
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}
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else
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{
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WORD *stack = CTX_SEG_OFF_TO_LIN(context,
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context->SegSs,
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context->Esp);
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ADD_LOWORD( context->Esp, -2 ); /* One item will be added to stack. */
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if (isstub)
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{
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WORD ip = stack[0];
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WORD cs = stack[1];
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stack += 2; /* Pop ip and cs. */
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*(--stack) = LOWORD(context->EFlags);
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*(--stack) = cs;
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*(--stack) = ip;
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}
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else
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*(--stack) = LOWORD(context->EFlags);
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}
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}
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/**********************************************************************
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* DOSVM_HardwareInterruptPM
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*
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* Emulate call to interrupt handler in 16-bit or 32-bit protected mode.
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*
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* Pushes interrupt frame to stack and changes instruction
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* pointer to interrupt handler.
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*/
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static void DOSVM_HardwareInterruptPM( CONTEXT *context, BYTE intnum )
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{
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FARPROC16 addr = DOSVM_GetPMHandler16( intnum );
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if (SELECTOROF(addr) == int16_sel)
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{
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TRACE( "builtin interrupt %02x has been invoked "
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"(through vector %02x)\n",
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OFFSETOF(addr)/DOSVM_STUB_PM16, intnum );
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if (intnum == 0x25 || intnum == 0x26)
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DOSVM_PushFlags( context, FALSE, FALSE );
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DOSVM_BuildCallFrame( context,
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DOSVM_IntProcRelay,
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DOSVM_GetBuiltinHandler(
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OFFSETOF(addr)/DOSVM_STUB_PM16 ) );
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}
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else
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{
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TRACE( "invoking hooked interrupt %02x at %04x:%04x\n",
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intnum, SELECTOROF(addr), OFFSETOF(addr) );
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/* Push the flags and return address on the stack */
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PUSH_WORD16( context, LOWORD(context->EFlags) );
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PUSH_WORD16( context, context->SegCs );
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PUSH_WORD16( context, LOWORD(context->Eip) );
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/* Jump to the interrupt handler */
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context->SegCs = HIWORD(addr);
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context->Eip = LOWORD(addr);
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}
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}
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/**********************************************************************
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* DOSVM_EmulateInterruptPM
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*
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* Emulate software interrupt in 16-bit or 32-bit protected mode.
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* Called from signal handler when intXX opcode is executed.
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*
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* Pushes interrupt frame to stack and changes instruction
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* pointer to interrupt handler.
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*/
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BOOL DOSVM_EmulateInterruptPM( CONTEXT *context, BYTE intnum )
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{
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TRACE_(relay)("\1Call DOS int 0x%02x ret=%04x:%08x\n"
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" eax=%08x ebx=%08x ecx=%08x edx=%08x\n"
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" esi=%08x edi=%08x ebp=%08x esp=%08x\n"
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" ds=%04x es=%04x fs=%04x gs=%04x ss=%04x flags=%08x\n",
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intnum, context->SegCs, context->Eip,
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context->Eax, context->Ebx, context->Ecx, context->Edx,
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context->Esi, context->Edi, context->Ebp, context->Esp,
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context->SegDs, context->SegEs, context->SegFs, context->SegGs,
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context->SegSs, context->EFlags );
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DOSMEM_InitDosMemory();
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if (context->SegCs == relay_code_sel)
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{
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/*
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* This must not be called using DOSVM_BuildCallFrame.
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*/
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DOSVM_RelayHandler( context );
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}
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else if (context->SegCs == int16_sel)
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{
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/* Restore original flags stored into the stack by the caller. */
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WORD *stack = CTX_SEG_OFF_TO_LIN(context,
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context->SegSs, context->Esp);
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context->EFlags = (DWORD)MAKELONG( stack[2], HIWORD(context->EFlags) );
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if (intnum != context->Eip / DOSVM_STUB_PM16)
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WARN( "interrupt stub has been modified "
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"(interrupt is %02x, interrupt stub is %02x)\n",
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intnum, context->Eip/DOSVM_STUB_PM16 );
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TRACE( "builtin interrupt %02x has been branched to\n", intnum );
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if (intnum == 0x25 || intnum == 0x26)
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DOSVM_PushFlags( context, FALSE, TRUE );
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DOSVM_BuildCallFrame( context,
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DOSVM_IntProcRelay,
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DOSVM_GetBuiltinHandler(intnum) );
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}
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else if (ldt_is_system(context->SegCs))
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{
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INTPROC proc;
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if (intnum >= ARRAY_SIZE(DOSVM_VectorsBuiltin)) return FALSE;
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if (!(proc = DOSVM_VectorsBuiltin[intnum])) return FALSE;
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proc( context );
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}
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else
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{
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DOSVM_HardwareInterruptPM( context, intnum );
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}
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return TRUE;
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}
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/**********************************************************************
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* DOSVM_GetPMHandler16
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*
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* Return the protected mode interrupt vector for a given interrupt.
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*/
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FARPROC16 DOSVM_GetPMHandler16( BYTE intnum )
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{
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TDB *pTask;
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FARPROC16 proc = 0;
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pTask = GlobalLock16(GetCurrentTask());
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if (pTask)
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{
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switch( intnum )
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{
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case 0x00:
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proc = pTask->int0;
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break;
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case 0x02:
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proc = pTask->int2;
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break;
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case 0x04:
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proc = pTask->int4;
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break;
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case 0x06:
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proc = pTask->int6;
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break;
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case 0x07:
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proc = pTask->int7;
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break;
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case 0x3e:
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proc = pTask->int3e;
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break;
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case 0x75:
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proc = pTask->int75;
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break;
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}
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if( proc )
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return proc;
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}
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if (!DOSVM_Vectors16[intnum])
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{
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proc = (FARPROC16)MAKESEGPTR( int16_sel, DOSVM_STUB_PM16 * intnum );
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DOSVM_Vectors16[intnum] = proc;
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}
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return DOSVM_Vectors16[intnum];
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}
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/**********************************************************************
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* DOSVM_SetPMHandler16
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*
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* Set the protected mode interrupt handler for a given interrupt.
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*/
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void DOSVM_SetPMHandler16( BYTE intnum, FARPROC16 handler )
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{
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TDB *pTask;
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TRACE("Set protected mode interrupt vector %02x <- %04x:%04x\n",
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intnum, HIWORD(handler), LOWORD(handler) );
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pTask = GlobalLock16(GetCurrentTask());
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if (!pTask)
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return;
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switch( intnum )
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{
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case 0x00:
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pTask->int0 = handler;
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break;
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case 0x02:
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pTask->int2 = handler;
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break;
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case 0x04:
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pTask->int4 = handler;
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break;
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case 0x06:
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pTask->int6 = handler;
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break;
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case 0x07:
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pTask->int7 = handler;
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break;
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case 0x3e:
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pTask->int3e = handler;
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break;
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case 0x75:
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pTask->int75 = handler;
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break;
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default:
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DOSVM_Vectors16[intnum] = handler;
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break;
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}
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}
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/**********************************************************************
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* DOSVM_CallBuiltinHandler
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*
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* Execute Wine interrupt handler procedure.
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*/
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static void DOSVM_CallBuiltinHandler( CONTEXT *context, BYTE intnum )
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{
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/*
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* FIXME: Make all builtin interrupt calls go via this routine.
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* FIXME: Check for PM->RM interrupt reflection.
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* FIXME: Check for RM->PM interrupt reflection.
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*/
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INTPROC proc = DOSVM_GetBuiltinHandler( intnum );
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proc( context );
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}
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/**********************************************************************
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* __wine_call_int_handler (KERNEL.@)
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*/
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void __wine_call_int_handler( CONTEXT *context, BYTE intnum )
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{
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DOSMEM_InitDosMemory();
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DOSVM_CallBuiltinHandler( context, intnum );
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}
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/**********************************************************************
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* DOSVM_Int11Handler
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*
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* Handler for int 11h (get equipment list).
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*
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*
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* Borrowed from Ralph Brown's interrupt lists:
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*
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* bits 15-14: number of parallel devices
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* bit 13: [Conv] Internal modem
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* bit 12: reserved
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* bits 11- 9: number of serial devices
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* bit 8: reserved
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* bits 7- 6: number of diskette drives minus one
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* bits 5- 4: Initial video mode:
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* 00b = EGA,VGA,PGA
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* 01b = 40 x 25 color
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* 10b = 80 x 25 color
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* 11b = 80 x 25 mono
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* bit 3: reserved
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* bit 2: [PS] =1 if pointing device
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* [non-PS] reserved
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* bit 1: =1 if math co-processor
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* bit 0: =1 if diskette available for boot
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*
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*
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* Currently the only of these bits correctly set are:
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*
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* bits 15-14 } Added by William Owen Smith,
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* bits 11-9 } wos@dcs.warwick.ac.uk
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* bits 7-6
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* bit 2 (always set) ( bit 2 = 4 )
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* bit 1 } Robert 'Admiral' Coeyman
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* All *nix systems either have a math processor or
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* emulate one.
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*/
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static void WINAPI DOSVM_Int11Handler( CONTEXT *context )
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{
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int diskdrives = 0;
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int parallelports = 0;
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int serialports = 0;
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int x;
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if (GetDriveTypeA("A:\\") == DRIVE_REMOVABLE) diskdrives++;
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if (GetDriveTypeA("B:\\") == DRIVE_REMOVABLE) diskdrives++;
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if (diskdrives) diskdrives--;
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for (x=0; x < 9; x++)
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{
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HANDLE handle;
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char file[10];
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/* serial port name */
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sprintf( file, "\\\\.\\COM%d", x+1 );
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handle = CreateFileA( file, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 );
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if (handle != INVALID_HANDLE_VALUE)
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{
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CloseHandle( handle );
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serialports++;
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}
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sprintf( file, "\\\\.\\LPT%d", x+1 );
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handle = CreateFileA( file, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 );
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if (handle != INVALID_HANDLE_VALUE)
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{
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CloseHandle( handle );
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parallelports++;
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}
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}
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if (serialports > 7) /* 3 bits -- maximum value = 7 */
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serialports = 7;
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if (parallelports > 3) /* 2 bits -- maximum value = 3 */
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parallelports = 3;
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SET_AX( context,
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(diskdrives << 6) | (serialports << 9) | (parallelports << 14) | 0x06 );
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}
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|
|
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/**********************************************************************
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* DOSVM_Int12Handler
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*
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* Handler for int 12h (get memory size).
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|
*/
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static void WINAPI DOSVM_Int12Handler( CONTEXT *context )
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{
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SET_AX( context, 640 );
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}
|
|
|
|
|
|
/**********************************************************************
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|
* DOSVM_Int17Handler
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*
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* Handler for int 17h (printer - output character).
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|
*/
|
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static void WINAPI DOSVM_Int17Handler( CONTEXT *context )
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{
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switch( AH_reg(context) )
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{
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case 0x00:/* Send character*/
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FIXME("Send character not supported yet\n");
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SET_AH( context, 0x00 );/*Timeout*/
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break;
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case 0x01: /* PRINTER - INITIALIZE */
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FIXME("Initialize Printer - Not Supported\n");
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SET_AH( context, 0x30 ); /* selected | out of paper */
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break;
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|
case 0x02: /* PRINTER - GET STATUS */
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|
FIXME("Get Printer Status - Not Supported\n");
|
|
break;
|
|
default:
|
|
SET_AH( context, 0 ); /* time out */
|
|
INT_BARF( context, 0x17 );
|
|
}
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* DOSVM_Int19Handler
|
|
*
|
|
* Handler for int 19h (Reboot).
|
|
*/
|
|
static void WINAPI DOSVM_Int19Handler( CONTEXT *context )
|
|
{
|
|
TRACE( "Attempted Reboot\n" );
|
|
ExitProcess(0);
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* DOSVM_Int1aHandler
|
|
*
|
|
* Handler for int 1ah.
|
|
*/
|
|
static void WINAPI DOSVM_Int1aHandler( CONTEXT *context )
|
|
{
|
|
switch(AH_reg(context))
|
|
{
|
|
case 0x00: /* GET SYSTEM TIME */
|
|
{
|
|
BIOSDATA *data = DOSVM_BiosData();
|
|
SET_CX( context, HIWORD(data->Ticks) );
|
|
SET_DX( context, LOWORD(data->Ticks) );
|
|
SET_AL( context, 0 ); /* FIXME: midnight flag is unsupported */
|
|
TRACE( "GET SYSTEM TIME - ticks=%d\n", data->Ticks );
|
|
}
|
|
break;
|
|
|
|
case 0x01: /* SET SYSTEM TIME */
|
|
FIXME( "SET SYSTEM TIME - not allowed\n" );
|
|
break;
|
|
|
|
case 0x02: /* GET REAL-TIME CLOCK TIME */
|
|
TRACE( "GET REAL-TIME CLOCK TIME\n" );
|
|
{
|
|
SYSTEMTIME systime;
|
|
GetLocalTime( &systime );
|
|
SET_CH( context, BIN_TO_BCD(systime.wHour) );
|
|
SET_CL( context, BIN_TO_BCD(systime.wMinute) );
|
|
SET_DH( context, BIN_TO_BCD(systime.wSecond) );
|
|
SET_DL( context, 0 ); /* FIXME: assume no daylight saving */
|
|
RESET_CFLAG(context);
|
|
}
|
|
break;
|
|
|
|
case 0x03: /* SET REAL-TIME CLOCK TIME */
|
|
FIXME( "SET REAL-TIME CLOCK TIME - not allowed\n" );
|
|
break;
|
|
|
|
case 0x04: /* GET REAL-TIME CLOCK DATE */
|
|
TRACE( "GET REAL-TIME CLOCK DATE\n" );
|
|
{
|
|
SYSTEMTIME systime;
|
|
GetLocalTime( &systime );
|
|
SET_CH( context, BIN_TO_BCD(systime.wYear / 100) );
|
|
SET_CL( context, BIN_TO_BCD(systime.wYear % 100) );
|
|
SET_DH( context, BIN_TO_BCD(systime.wMonth) );
|
|
SET_DL( context, BIN_TO_BCD(systime.wDay) );
|
|
RESET_CFLAG(context);
|
|
}
|
|
break;
|
|
|
|
case 0x05: /* SET REAL-TIME CLOCK DATE */
|
|
FIXME( "SET REAL-TIME CLOCK DATE - not allowed\n" );
|
|
break;
|
|
|
|
case 0x06: /* SET ALARM */
|
|
FIXME( "SET ALARM - unimplemented\n" );
|
|
break;
|
|
|
|
case 0x07: /* CANCEL ALARM */
|
|
FIXME( "CANCEL ALARM - unimplemented\n" );
|
|
break;
|
|
|
|
case 0x08: /* SET RTC ACTIVATED POWER ON MODE */
|
|
case 0x09: /* READ RTC ALARM TIME AND STATUS */
|
|
case 0x0a: /* READ SYSTEM-TIMER DAY COUNTER */
|
|
case 0x0b: /* SET SYSTEM-TIMER DAY COUNTER */
|
|
case 0x0c: /* SET RTC DATE/TIME ACTIVATED POWER-ON MODE */
|
|
case 0x0d: /* RESET RTC DATE/TIME ACTIVATED POWER-ON MODE */
|
|
case 0x0e: /* GET RTC DATE/TIME ALARM AND STATUS */
|
|
case 0x0f: /* INITIALIZE REAL-TIME CLOCK */
|
|
INT_BARF( context, 0x1a );
|
|
break;
|
|
|
|
case 0xb0:
|
|
if (CX_reg(context) == 0x4d52 &&
|
|
DX_reg(context) == 0x4349 &&
|
|
AL_reg(context) == 0x01)
|
|
{
|
|
/*
|
|
* Microsoft Real-Time Compression Interface (MRCI).
|
|
* Ignoring this call indicates MRCI is not supported.
|
|
*/
|
|
TRACE( "Microsoft Real-Time Compression Interface - not supported\n" );
|
|
}
|
|
else
|
|
{
|
|
INT_BARF(context, 0x1a);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
INT_BARF( context, 0x1a );
|
|
}
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* DOSVM_Int20Handler
|
|
*
|
|
* Handler for int 20h.
|
|
*/
|
|
static void WINAPI DOSVM_Int20Handler( CONTEXT *context )
|
|
{
|
|
DOSVM_Exit( 0 );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* DOSVM_Int2aHandler
|
|
*
|
|
* Handler for int 2ah (network).
|
|
*/
|
|
static void WINAPI DOSVM_Int2aHandler( CONTEXT *context )
|
|
{
|
|
switch(AH_reg(context))
|
|
{
|
|
case 0x00: /* NETWORK INSTALLATION CHECK */
|
|
break;
|
|
|
|
default:
|
|
INT_BARF( context, 0x2a );
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* DOSVM_Int41Handler
|
|
*/
|
|
static void WINAPI DOSVM_Int41Handler( CONTEXT *context )
|
|
{
|
|
switch ( AX_reg(context) )
|
|
{
|
|
case 0x4f:
|
|
case 0x50:
|
|
case 0x150:
|
|
case 0x51:
|
|
case 0x52:
|
|
case 0x152:
|
|
case 0x59:
|
|
case 0x5a:
|
|
case 0x5b:
|
|
case 0x5c:
|
|
case 0x5d:
|
|
/* Notifies the debugger of a lot of stuff. We simply ignore it
|
|
for now, but some of the info might actually be useful ... */
|
|
break;
|
|
|
|
default:
|
|
INT_BARF( context, 0x41 );
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* DOSVM_Int4bHandler
|
|
*
|
|
*/
|
|
static void WINAPI DOSVM_Int4bHandler( CONTEXT *context )
|
|
{
|
|
switch(AH_reg(context))
|
|
{
|
|
case 0x81: /* Virtual DMA Spec (IBM SCSI interface) */
|
|
if(AL_reg(context) != 0x02) /* if not install check */
|
|
{
|
|
SET_CFLAG(context);
|
|
SET_AL( context, 0x0f ); /* function is not implemented */
|
|
}
|
|
break;
|
|
default:
|
|
INT_BARF(context, 0x4b);
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* DOSVM_Int5cHandler
|
|
*
|
|
* Called from NetBIOSCall16.
|
|
*/
|
|
static void WINAPI DOSVM_Int5cHandler( CONTEXT *context )
|
|
{
|
|
BYTE* ptr;
|
|
ptr = MapSL( MAKESEGPTR(context->SegEs,BX_reg(context)) );
|
|
FIXME("(%p): command code %02x (ignored)\n",context, *ptr);
|
|
*(ptr+0x01) = 0xFB; /* NetBIOS emulator not found */
|
|
SET_AL( context, 0xFB );
|
|
}
|