ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Make timer IRQ handler regular builtin interrupt handler instead of 

using an assembler stub.
This commit is contained in:
Jukka Heinonen 2003-06-30 02:03:48 +00:00 committed by Alexandre Julliard
parent 0643acd576
commit 36001fe660
4 changed files with 45 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
dlls/winedos/dosexe.h
View File

@ -264,6 +264,9 @@ void DOSVM_BuildCallFrame( CONTEXT86 *, DOSRELAY, LPVOID );
extern void SB_ioport_out( WORD port, BYTE val );
extern BYTE SB_ioport_in( WORD port );
/* timer.c */
extern void WINAPI DOSVM_Int08Handler(CONTEXT86*);
/* xms.c */
extern void WINAPI XMS_Handler(CONTEXT86*);

2
dlls/winedos/interrupts.c
View File

@ -45,7 +45,7 @@ static const INTPROC DOSVM_VectorsBuiltin[] =
{
/* 00 */ 0, 0, 0, 0,
/* 04 */ 0, 0, 0, 0,
/* 08 */ 0, DOSVM_Int09Handler, 0, 0,
/* 08 */ DOSVM_Int08Handler, DOSVM_Int09Handler, 0, 0,
/* 0C */ 0, 0, 0, 0,
/* 10 */ DOSVM_Int10Handler, DOSVM_Int11Handler, DOSVM_Int12Handler, DOSVM_Int13Handler,
/* 14 */ 0, DOSVM_Int15Handler, DOSVM_Int16Handler, DOSVM_Int17Handler,

32
dlls/winedos/module.c
View File

@ -152,37 +152,6 @@ static void MZ_FillPSP( LPVOID lpPSP, LPCSTR cmdtail, int length )
/* FIXME: more PSP stuff */
}
/* default INT 08 handler: increases timer tick counter but not much more */
static char int08[]={
0xCD,0x1C, /* int $0x1c */
0x50, /* pushw %ax */
0x1E, /* pushw %ds */
0xB8,0x40,0x00, /* movw $0x40,%ax */
0x8E,0xD8, /* movw %ax,%ds */
#if 0
0x83,0x06,0x6C,0x00,0x01, /* addw $1,(0x6c) */
0x83,0x16,0x6E,0x00,0x00, /* adcw $0,(0x6e) */
#else
0x66,0xFF,0x06,0x6C,0x00, /* incl (0x6c) */
#endif
0xB0,0x20, /* movb $0x20,%al */
0xE6,0x20, /* outb %al,$0x20 */
0x1F, /* popw %ax */
0x58, /* popw %ax */
0xCF /* iret */
};
static void MZ_InitHandlers(void)
{
WORD seg;
LPBYTE start = DOSVM_AllocCodeUMB( sizeof(int08), &seg, 0 );
memcpy(start,int08,sizeof(int08));
/* INT 08: point it at our tick-incrementing handler */
((SEGPTR*)0)[0x08]=MAKESEGPTR(seg,0);
/* INT 1C: just point it to IRET, we don't want to handle it ourselves */
((SEGPTR*)0)[0x1C]=MAKESEGPTR(seg,sizeof(int08)-1);
}
static WORD MZ_InitEnvironment( LPCSTR env, LPCSTR name )
{
unsigned sz=0;
@ -213,7 +182,6 @@ static BOOL MZ_InitMemory(void)
DOSMEM_Init(TRUE);
DOSDEV_InstallDOSDevices();
MZ_InitHandlers();
return TRUE;
}

41
dlls/winedos/timer.c
View File

@ -124,3 +124,44 @@ void WINAPI DOSVM_SetTimer( UINT ticks )
if (!DOSVM_IsWin16())
MZ_RunInThread( TIMER_DoSetTimer, ticks );
}
/***********************************************************************
* DOSVM_Int08Handler
*
* DOS interrupt 08h handler (IRQ0 - TIMER).
*/
void WINAPI DOSVM_Int08Handler( CONTEXT86 *context )
{
BIOSDATA *bios_data = BIOS_DATA;
CONTEXT86 nested_context = *context;
FARPROC16 int1c_proc = DOSVM_GetRMHandler( 0x1c );
nested_context.SegCs = SELECTOROF(int1c_proc);
nested_context.Eip = OFFSETOF(int1c_proc);
/*
* Update BIOS ticks since midnight.
*
* FIXME: What to do when number of ticks exceeds ticks per day?
*/
bios_data->Ticks++;
/*
* If IRQ is called from protected mode, convert
* context into VM86 context. Stack is invalidated so
* that DPMI_CallRMProc allocates a new stack.
*/
if (!ISV86(&nested_context))
{
nested_context.EFlags |= V86_FLAG;
nested_context.SegSs = 0;
}
/*
* Call interrupt 0x1c.
*/
DPMI_CallRMProc( &nested_context, NULL, 0, TRUE );
DOSVM_AcknowledgeIRQ( context );
}