static int ClearDebugRegs( int trap )
{
long dr6;
int i;
if( Flags.DRsOn ) {
out( "tr=" ); out( hex( trap ) );
out( " dr6=" ); out( hex( GetDR6() ) );
out( "\r\n" );
if( trap == TRAP_WATCH_POINT ) { /* could be a 386 break point */
dr6 = GetDR6();
if( ( ( dr6 & DR6_B0 ) && IsBreak[0] )
|| ( ( dr6 & DR6_B1 ) && IsBreak[1] )
|| ( ( dr6 & DR6_B2 ) && IsBreak[2] )
|| ( ( dr6 & DR6_B3 ) && IsBreak[3] ) ) {
trap = TRAP_BREAK_POINT;
}
}
for( i = 0; i < 4; ++i ) {
IsBreak[ i ] = FALSE;
}
SetDR6( 0 );
SetDR7( 0 );
}
return( trap );
}
void ClearDebugRegs( void )
{
int i;
for( i = 0; i < 4; i++)
SetDRn( i, 0, 0 );
SetDR6( 0 );
SetDR7( 0 );
}
static bool SetDebugRegs()
{
int needed;
int i;
watch *wp;
bool success;
long rc;
needed = 0;
for( i = WatchCount, wp = WatchPoints; i != 0; --i, ++wp ) {
needed += wp->dregs;
}
if( needed > 4 ) return( FALSE );
if( IsDPMI ) {
success = TRUE;
for( i = WatchCount, wp = WatchPoints; i != 0; --i, ++wp ) {
wp->handle = -1;
wp->handle2 = -1;
}
for( i = WatchCount, wp = WatchPoints; i != 0; --i, ++wp ) {
_DBG2(( "Setting Watch On %8.8lx\r\n", wp->linear ));
success = FALSE;
rc = DPMISetWatch( wp->linear, wp->len, DPMI_WATCH_WRITE );
_DBG2(( "OK 1 = %d\r\n", rc >= 0 ));
if( rc < 0 ) break;
wp->handle = rc;
if( wp->dregs == 2 ) {
rc = DPMISetWatch( wp->linear+4, wp->len, DPMI_WATCH_WRITE );
_DBG2(( "OK 2 = %d\r\n", rc >= 0 ));
if( rc <= 0 ) break;
wp->handle2 = rc;
}
success = TRUE;
}
if( !success ) {
ClearDebugRegs();
}
return( success );
} else {
int dr;
unsigned long dr7;
dr = 0;
dr7 = 0;
for( i = WatchCount, wp = WatchPoints; i != 0; --i, ++wp ) {
dr7 |= SetDRn( dr, wp->linear, DRLen( wp->len ) | DR7_BWR );
++dr;
if( wp->dregs == 2 ) {
dr7 |= SetDRn( dr, wp->linear+4, DRLen( wp->len ) | DR7_BWR );
++dr;
}
}
SetDR7( dr7 );
return( TRUE );
}
}
void ClearDebugRegs()
{
int i;
watch *wp;
if( IsDPMI ) {
for( i = WatchCount, wp = WatchPoints; i != 0; --i, ++wp ) {
if( wp->handle >= 0 ) {
DPMIClearWatch( wp->handle );
wp->handle = -1;
}
if( wp->handle2 >= 0 ) {
DPMIClearWatch( wp->handle2 );
wp->handle2 = -1;
}
}
} else {
SetDR6( 0 );
SetDR7( 0 );
}
}
static bool SetDebugRegs( void )
{
int needed;
int i;
int dr;
unsigned long dr7;
unsigned long linear;
watch *wp;
bool watch386;
if( !Flags.DRsOn )
return( FALSE );
needed = 0;
for( i = WatchCount, wp = WatchPoints; i != 0; --i, ++wp ) {
needed += wp->dregs;
}
dr = 0;
dr7 = 0;
if( needed > 4 ) {
watch386 = FALSE;
} else {
for( i = WatchCount, wp = WatchPoints; i != 0; --i, ++wp ) {
dr7 |= SetDRn( dr, wp->linear, DRLen( wp->len ) | DR7_BWR );
++dr;
if( wp->dregs == 2 ) {
dr7 |= SetDRn( dr, wp->linear+4, DRLen( wp->len ) | DR7_BWR );
++dr;
}
watch386 = TRUE;
}
}
if( GotABadBreak && dr < 4 ) {
linear = ( (unsigned long)BadBreak.segment << 4 ) + BadBreak.offset;
dr7 |= SetDRn( dr, linear, DR7_L1 | DR7_BINST );
IsBreak[ dr ] = TRUE;
++dr;
}
SetDR7( dr7 );
return( watch386 );
}
int SetDebugRegs( void )
{
int needed,i,dr;
u_long dr7;
watch_point *wp;
needed = 0;
for( i = 0; i < wpCount; i++)
needed += wpList[i].dregs;
if( needed > 4 )
return( FALSE );
dr = 0;
dr7 = 0;
for( i = 0, wp = wpList; i < wpCount; i++, wp++ ) {
dr7 |= SetDRn( dr, wp->linear, DRLen( wp->len ) | DR7_BWR );
dr++;
if( wp->dregs == 2 ) {
dr7 |= SetDRn( dr, wp->linear+wp->len, DRLen( wp->len ) | DR7_BWR );
dr++;
}
}
SetDR7( dr7 );
return( TRUE );
}
