/*
 *  Copyright (C) 2002-2007  The DOSBox Team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

/* $Id: debug.cpp,v 1.88 2007/06/12 20:22:07 c2woody Exp $ */

#include "dosbox.h"
#if C_DEBUG

#include <string.h>
#include <list>
#include <ctype.h>
#include <fstream>
#include <iomanip>
#include <string>
#include <sstream>
using namespace std;

#include "debug.h"
#include "cross.h" //snprintf
#include "cpu.h"
#include "video.h"
#include "pic.h"
#include "mapper.h"
#include "cpu.h"
#include "callback.h"
#include "inout.h"
#include "mixer.h"
#include "timer.h"
#include "paging.h"
#include "support.h"
#include "shell.h"
#include "programs.h"
#include "debug_inc.h"
#include "../cpu/lazyflags.h"
#include "keyboard.h"

#ifdef WIN32
void WIN32_Console();
#else
#include <termios.h>
#include <unistd.h>
static struct termios consolesettings;
int old_cursor_state;
#endif

// Forwards
static void DrawCode(void);
static void DEBUG_RaiseTimerIrq(void);
static void SaveMemory(Bitu seg, Bitu ofs1, Bit32u num);
static void SaveMemoryBin(Bitu seg, Bitu ofs1, Bit32u num);
static void LogGDT(void);
static void LogLDT(void);
static void LogIDT(void);
static void LogPages(char* selname);
static void LogCPUInfo(void);
static void OutputVecTable(char* filename);
static void DrawVariables(void);

char* AnalyzeInstruction(char* inst, bool saveSelector);
Bit32u GetHexValue(char* str, char*& hex);

class DebugPageHandler : public PageHandler {
public:
	Bitu readb(PhysPt addr) {
	}
	Bitu readw(PhysPt addr) {
	}
	Bitu readd(PhysPt addr) {
	}
	void writeb(PhysPt addr,Bitu val) {
	}
	void writew(PhysPt addr,Bitu val) {
	}
	void writed(PhysPt addr,Bitu val) {
	}



};


class DEBUG;

DEBUG*	pDebugcom	= 0;
bool	exitLoop	= false;


// Heavy Debugging Vars for logging
#if C_HEAVY_DEBUG
static ofstream 	cpuLogFile;
static bool		cpuLog			= false;
static int		cpuLogCounter	= 0;
static int		cpuLogType		= 1;	// log detail
static bool zeroProtect = false;
bool	logHeavy	= false;
#endif



static struct  {
	Bit32u eax,ebx,ecx,edx,esi,edi,ebp,esp,eip;
} oldregs;

static char curSelectorName[3] = { 0,0,0 };

static Segment oldsegs[6];
static Bitu oldflags,oldcpucpl;
DBGBlock dbg;
static Bitu input_count;
Bitu cycle_count;
static bool debugging;


static void SetColor(Bitu test) {
	if (test) {
		if (has_colors()) { wattrset(dbg.win_reg,COLOR_PAIR(PAIR_BYELLOW_BLACK));}
	} else {
		if (has_colors()) { wattrset(dbg.win_reg,0);}
	}
}

struct SCodeViewData {	
	int		cursorPos;
	Bit16u  firstInstSize;
	Bit16u	useCS;
	Bit32u	useEIPlast, useEIPmid;
	Bit32u	useEIP;
	Bit16u  cursorSeg;
	Bit32u	cursorOfs;
	bool	inputMode;
	char	inputStr[255];

} codeViewData;

static Bit16u	dataSeg;
static Bit32u	dataOfs;
static bool		showExtend = true;

/***********/
/* Helpers */
/***********/

Bit32u PhysMakeProt(Bit16u selector, Bit32u offset)
{
	Descriptor desc;
	if (cpu.gdt.GetDescriptor(selector,desc)) return desc.GetBase()+offset;
	return 0;
};

Bit32u GetAddress(Bit16u seg, Bit32u offset)
{
	if (seg==SegValue(cs)) return SegPhys(cs)+offset;
	if (cpu.pmode && !(reg_flags & FLAG_VM)) {
		Descriptor desc;
		if (cpu.gdt.GetDescriptor(seg,desc)) return PhysMakeProt(seg,offset);
	}
	return (seg<<4)+offset;
}


bool GetDescriptorInfo(char* selname, char* out1, char* out2)
{
	Bitu sel;
	Descriptor desc;

	if (strstr(selname,"cs") || strstr(selname,"CS")) sel = SegValue(cs);
	else if (strstr(selname,"ds") || strstr(selname,"DS")) sel = SegValue(ds);
	else if (strstr(selname,"es") || strstr(selname,"ES")) sel = SegValue(es);
	else if (strstr(selname,"fs") || strstr(selname,"FS")) sel = SegValue(fs);
	else if (strstr(selname,"gs") || strstr(selname,"GS")) sel = SegValue(gs);
	else if (strstr(selname,"ss") || strstr(selname,"SS")) sel = SegValue(ss);
	else {
		sel = GetHexValue(selname,selname);
		if (*selname==0) selname="  ";
	}
	if (cpu.gdt.GetDescriptor(sel,desc)) {
		switch (desc.Type()) {
			case DESC_TASK_GATE:
				sprintf(out1,"%s: s:%08X type:%02X p",selname,desc.GetSelector(),desc.saved.gate.type);
				sprintf(out2,"    TaskGate   dpl : %01X %1X",desc.saved.gate.dpl,desc.saved.gate.p);
				return true;
			case DESC_LDT:
			case DESC_286_TSS_A:
			case DESC_286_TSS_B:
			case DESC_386_TSS_A:
			case DESC_386_TSS_B:
				sprintf(out1,"%s: b:%08X type:%02X pag",selname,desc.GetBase(),desc.saved.seg.type);
				sprintf(out2,"    l:%08X dpl : %01X %1X%1X%1X",desc.GetLimit(),desc.saved.seg.dpl,desc.saved.seg.p,desc.saved.seg.avl,desc.saved.seg.g);
				return true;
			case DESC_286_CALL_GATE:
			case DESC_386_CALL_GATE:
				sprintf(out1,"%s: s:%08X type:%02X p params: %02X",selname,desc.GetSelector(),desc.saved.gate.type,desc.saved.gate.paramcount);
				sprintf(out2,"    o:%08X dpl : %01X %1X",desc.GetOffset(),desc.saved.gate.dpl,desc.saved.gate.p);
				return true;
			case DESC_286_INT_GATE:
			case DESC_286_TRAP_GATE:
			case DESC_386_INT_GATE:
			case DESC_386_TRAP_GATE:
				sprintf(out1,"%s: s:%08X type:%02X p",selname,desc.GetSelector(),desc.saved.gate.type);
				sprintf(out2,"    o:%08X dpl : %01X %1X",desc.GetOffset(),desc.saved.gate.dpl,desc.saved.gate.p);
				return true;
		}
		sprintf(out1,"%s: b:%08X type:%02X parbg",selname,desc.GetBase(),desc.saved.seg.type);
		sprintf(out2,"    l:%08X dpl : %01X %1X%1X%1X%1X%1X",desc.GetLimit(),desc.saved.seg.dpl,desc.saved.seg.p,desc.saved.seg.avl,desc.saved.seg.r,desc.saved.seg.big,desc.saved.seg.g);
		return true;
	} else {
		strcpy(out1,"                                     ");
		strcpy(out2,"                                     ");
	}
	return false;
};

/********************/
/* DebugVar   stuff */
/********************/

class CDebugVar
{
public:
	CDebugVar(char* _name, PhysPt _adr) { adr=_adr; safe_strncpy(name,_name,16); };
	
	char*	GetName(void) { return name; };
	PhysPt	GetAdr (void) { return adr;  };

private:
	PhysPt  adr;
	char	name[16];

public: 
	static void			InsertVariable	(char* name, PhysPt adr);
	static CDebugVar*	FindVar			(PhysPt adr);
	static void			DeleteAll		();
	static bool			SaveVars		(char* name);
	static bool			LoadVars		(char* name);

	static std::list<CDebugVar*>	varList;
};

std::list<CDebugVar*> CDebugVar::varList;


/********************/
/* Breakpoint stuff */
/********************/

bool skipFirstInstruction = false;

enum EBreakpoint { BKPNT_UNKNOWN, BKPNT_PHYSICAL, BKPNT_INTERRUPT, BKPNT_MEMORY, BKPNT_MEMORY_PROT, BKPNT_MEMORY_LINEAR };

#define BPINT_ALL 0x100

class CBreakpoint
{
public:

	CBreakpoint(void);
	void					SetAddress		(Bit16u seg, Bit32u off)	{ location = GetAddress(seg,off);	type = BKPNT_PHYSICAL; segment = seg; offset = off; };
	void					SetAddress		(PhysPt adr)				{ location = adr;				type = BKPNT_PHYSICAL; };
	void					SetInt			(Bit8u _intNr, Bit16u ah)	{ intNr = _intNr, ahValue = ah; type = BKPNT_INTERRUPT; };
	void					SetOnce			(bool _once)				{ once = _once; };
	void					SetType			(EBreakpoint _type)			{ type = _type; };
	void					SetValue		(Bit8u value)				{ ahValue = value; };

	bool					IsActive		(void)						{ return active; };
	void					Activate		(bool _active);

	EBreakpoint				GetType			(void)						{ return type; };
	bool					GetOnce			(void)						{ return once; };
	PhysPt					GetLocation		(void)						{ if (GetType()!=BKPNT_INTERRUPT)	return location;	else return 0; };
	Bit16u					GetSegment		(void)						{ return segment; };
	Bit32u					GetOffset		(void)						{ return offset; };
	Bit8u					GetIntNr		(void)						{ if (GetType()==BKPNT_INTERRUPT)	return intNr;		else return 0; };
	Bit16u					GetValue		(void)						{ if (GetType()!=BKPNT_PHYSICAL)	return ahValue;		else return 0; };

	// statics
	static CBreakpoint*		AddBreakpoint		(Bit16u seg, Bit32u off, bool once);
	static CBreakpoint*		AddIntBreakpoint	(Bit8u intNum, Bit16u ah, bool once);
	static CBreakpoint*		AddMemBreakpoint	(Bit16u seg, Bit32u off);
	static void				ActivateBreakpoints	(PhysPt adr, bool activate);
	static bool				CheckBreakpoint		(PhysPt adr);
	static bool				CheckBreakpoint		(Bitu seg, Bitu off);
	static bool				CheckIntBreakpoint	(PhysPt adr, Bit8u intNr, Bit16u ahValue);
	static bool				IsBreakpoint		(PhysPt where);
	static bool				IsBreakpointDrawn	(PhysPt where);
	static bool				DeleteBreakpoint	(PhysPt where);
	static bool				DeleteByIndex		(Bit16u index);
	static void				DeleteAll			(void);
	static void				ShowList			(void);


private:
	EBreakpoint	type;
	// Physical
	PhysPt		location;
	Bit8u		oldData;
	Bit16u		segment;
	Bit32u		offset;
	// Int
	Bit8u		intNr;
	Bit16u		ahValue;
	// Shared
	bool		active;
	bool		once;

	static std::list<CBreakpoint*>	BPoints;
public:
	static CBreakpoint*				ignoreOnce;
};

CBreakpoint::CBreakpoint(void):
location(0),
active(false),once(false),
segment(0),offset(0),intNr(0),ahValue(0),
type(BKPNT_UNKNOWN) { };

void CBreakpoint::Activate(bool _active)
{
#if !C_HEAVY_DEBUG
	if (GetType()==BKPNT_PHYSICAL) {
		if (_active) {
			// Set 0xCC and save old value
			Bit8u data = mem_readb(location);
			if (data!=0xCC) {
				oldData = data;
				mem_writeb(location,0xCC);
			};
		} else {
			// Remove 0xCC and set old value
			if (mem_readb (location)==0xCC) {
				mem_writeb(location,oldData);
			};
		}
	}
#endif
	active = _active;
};

// Statics
std::list<CBreakpoint*> CBreakpoint::BPoints;
CBreakpoint*			CBreakpoint::ignoreOnce = 0;
Bitu					ignoreAddressOnce = 0;

CBreakpoint* CBreakpoint::AddBreakpoint(Bit16u seg, Bit32u off, bool once)
{
	CBreakpoint* bp = new CBreakpoint();
	bp->SetAddress		(seg,off);
	bp->SetOnce			(once);
	BPoints.push_front	(bp);
	return bp;
};

CBreakpoint* CBreakpoint::AddIntBreakpoint(Bit8u intNum, Bit16u ah, bool once)
{
	CBreakpoint* bp = new CBreakpoint();
	bp->SetInt			(intNum,ah);
	bp->SetOnce			(once);
	BPoints.push_front	(bp);
	return bp;
};

CBreakpoint* CBreakpoint::AddMemBreakpoint(Bit16u seg, Bit32u off)
{
	CBreakpoint* bp = new CBreakpoint();
	bp->SetAddress		(seg,off);
	bp->SetOnce			(false);
	bp->SetType			(BKPNT_MEMORY);
	BPoints.push_front	(bp);
	return bp;
};

void CBreakpoint::ActivateBreakpoints(PhysPt adr, bool activate)
{
	// activate all breakpoints
	std::list<CBreakpoint*>::iterator i;
	CBreakpoint* bp;
	for(i=BPoints.begin(); i != BPoints.end(); i++) {
		bp = (*i);
		// Do not activate, when bp is an actual adress
		if (activate && (bp->GetType()==BKPNT_PHYSICAL) && (bp->GetLocation()==adr)) {
			// Do not activate :)
			continue;
		}
		bp->Activate(activate);	
	};
};

bool CBreakpoint::CheckBreakpoint(Bitu seg, Bitu off)
// Checks if breakpoint is valid an should stop execution
{
	if ((ignoreAddressOnce!=0) && (GetAddress(seg,off)==ignoreAddressOnce)) {
		ignoreAddressOnce = 0;
		return false;
	} else
		ignoreAddressOnce = 0;

	// Search matching breakpoint
	std::list<CBreakpoint*>::iterator i;
	CBreakpoint* bp;
	for(i=BPoints.begin(); i != BPoints.end(); i++) {
		bp = (*i);
		if ((bp->GetType()==BKPNT_PHYSICAL) && bp->IsActive() && (bp->GetSegment()==seg) && (bp->GetOffset()==off)) {
			// Ignore Once ?
			if (ignoreOnce==bp) {
				ignoreOnce=0;
				bp->Activate(true);
				return false;
			};
			// Found, 
			if (bp->GetOnce()) {
				// delete it, if it should only be used once
				(BPoints.erase)(i);
				bp->Activate(false);
				delete bp;
			} else {
				ignoreOnce = bp;
			};
			return true;
		} 
#if C_HEAVY_DEBUG
		// Memory breakpoint support
		else if (bp->IsActive()) {
			if ((bp->GetType()==BKPNT_MEMORY) || (bp->GetType()==BKPNT_MEMORY_PROT) || (bp->GetType()==BKPNT_MEMORY_LINEAR)) {
				// Watch Protected Mode Memoryonly in pmode
				if (bp->GetType()==BKPNT_MEMORY_PROT) {
					// Check if pmode is active
					if (!cpu.pmode) return false;
					// Check if descriptor is valid
					Descriptor desc;
					if (!cpu.gdt.GetDescriptor(bp->GetSegment(),desc)) return false;
					if (desc.GetLimit()==0) return false;
				}

				Bitu address; 
				if (bp->GetType()==BKPNT_MEMORY_LINEAR) address = bp->GetOffset();
				else address = GetAddress(bp->GetSegment(),bp->GetOffset());
				Bit8u value = mem_readb(address);
				if (bp->GetValue() != value) {
					// Yup, memory value changed
					DEBUG_ShowMsg("DEBUG: Memory breakpoint %s: %04X:%04X - %02X -> %02X\n",(bp->GetType()==BKPNT_MEMORY_PROT)?"(Prot)":"",bp->GetSegment(),bp->GetOffset(),bp->GetValue(),value);
					bp->SetValue(value);
					return true;
				};		
			} 		
		};
#endif
	};
	return false;
};

bool CBreakpoint::CheckIntBreakpoint(PhysPt adr, Bit8u intNr, Bit16u ahValue)
// Checks if interrupt breakpoint is valid an should stop execution
{
	if ((ignoreAddressOnce!=0) && (adr==ignoreAddressOnce)) {
		ignoreAddressOnce = 0;
		return false;
	} else
		ignoreAddressOnce = 0;

	// Search matching breakpoint
	std::list<CBreakpoint*>::iterator i;
	CBreakpoint* bp;
	for(i=BPoints.begin(); i != BPoints.end(); i++) {
		bp = (*i);
		if ((bp->GetType()==BKPNT_INTERRUPT) && bp->IsActive() && (bp->GetIntNr()==intNr)) {
			if ((bp->GetValue()==BPINT_ALL) || (bp->GetValue()==ahValue)) {
				// Ignoie it once ?
				if (ignoreOnce==bp) {
					ignoreOnce=0;
					bp->Activate(true);
					return false;
				};
				// Found
				if (bp->GetOnce()) {
					// delete it, if it should only be used once
					(BPoints.erase)(i);
					bp->Activate(false);
					delete bp;
				} else {
					ignoreOnce = bp;
				}
				return true;
			}
		};
	};
	return false;
};

void CBreakpoint::DeleteAll() 
{
	std::list<CBreakpoint*>::iterator i;
	CBreakpoint* bp;
	for(i=BPoints.begin(); i != BPoints.end(); i++) {
		bp = (*i);
		bp->Activate(false);
		delete bp;
	};
	(BPoints.clear)();
};


bool CBreakpoint::DeleteByIndex(Bit16u index) 
{
	// Search matching breakpoint
	int nr = 0;
	std::list<CBreakpoint*>::iterator i;
	CBreakpoint* bp;
	for(i=BPoints.begin(); i != BPoints.end(); i++) {
		if (nr==index) {
			bp = (*i);
			(BPoints.erase)(i);
			bp->Activate(false);
			delete bp;
			return true;
		}
		nr++;
	};
	return false;
};

bool CBreakpoint::DeleteBreakpoint(PhysPt where) 
{
	// Search matching breakpoint
	std::list<CBreakpoint*>::iterator i;
	CBreakpoint* bp;
	for(i=BPoints.begin(); i != BPoints.end(); i++) {
		bp = (*i);
		if ((bp->GetType()==BKPNT_PHYSICAL) && (bp->GetLocation()==where)) {
			(BPoints.erase)(i);
			bp->Activate(false);
			delete bp;
			return true;
		}
	};
	return false;
};

bool CBreakpoint::IsBreakpoint(PhysPt adr) 
// is there a breakpoint at address ?
{
	// Search matching breakpoint
	std::list<CBreakpoint*>::iterator i;
	CBreakpoint* bp;
	for(i=BPoints.begin(); i != BPoints.end(); i++) {
		bp = (*i);
		if ((bp->GetType()==BKPNT_PHYSICAL) && (bp->GetSegment()==adr)) {
			return true;
		};
		if ((bp->GetType()==BKPNT_PHYSICAL) && (bp->GetLocation()==adr)) {
			return true;
		};
	};
	return false;
};

bool CBreakpoint::IsBreakpointDrawn(PhysPt adr) 
// valid breakpoint, that should be drawn ?
{
	// Search matching breakpoint
	std::list<CBreakpoint*>::iterator i;
	CBreakpoint* bp;
	for(i=BPoints.begin(); i != BPoints.end(); i++) {
		bp = (*i);
		if ((bp->GetType()==BKPNT_PHYSICAL) && (bp->GetLocation()==adr)) {
			// Only draw, if breakpoint is not only once, 
			return !bp->GetOnce();
		};
	};
	return false;
};

void CBreakpoint::ShowList(void)
{
	// iterate list 
	int nr = 0;
	std::list<CBreakpoint*>::iterator i;
	for(i=BPoints.begin(); i != BPoints.end(); i++) {
		CBreakpoint* bp = (*i);
		if (bp->GetType()==BKPNT_PHYSICAL) {
			DEBUG_ShowMsg("%02X. BP %04X:%04X\n",nr,bp->GetSegment(),bp->GetOffset());
			nr++;
		} else if (bp->GetType()==BKPNT_INTERRUPT) {
			if (bp->GetValue()==BPINT_ALL)	DEBUG_ShowMsg("%02X. BPINT %02X\n",nr,bp->GetIntNr());					
			else							DEBUG_ShowMsg("%02X. BPINT %02X AH=%02X\n",nr,bp->GetIntNr(),bp->GetValue());
			nr++;
		} else if (bp->GetType()==BKPNT_MEMORY) {
			DEBUG_ShowMsg("%02X. BPMEM %04X:%04X (%02X)\n",nr,bp->GetSegment(),bp->GetOffset(),bp->GetValue());
			nr++;
		} else if (bp->GetType()==BKPNT_MEMORY_PROT) {
			DEBUG_ShowMsg("%02X. BPPM %04X:%08X (%02X)\n",nr,bp->GetSegment(),bp->GetOffset(),bp->GetValue());
			nr++;
		};
	}
};

bool DEBUG_Breakpoint(void)
{
	/* First get the phyiscal address and check for a set Breakpoint */
	if (!CBreakpoint::CheckBreakpoint(SegValue(cs),reg_eip)) return false;
	// Found. Breakpoint is valid
	PhysPt where=GetAddress(SegValue(cs),reg_eip);
	CBreakpoint::ActivateBreakpoints(where,false);	// Deactivate all breakpoints
	return true;
};

bool DEBUG_IntBreakpoint(Bit8u intNum)
{
	/* First get the phyiscal address and check for a set Breakpoint */
	PhysPt where=GetAddress(SegValue(cs),reg_eip);
	if (!CBreakpoint::CheckIntBreakpoint(where,intNum,reg_ah)) return false;
	// Found. Breakpoint is valid
	CBreakpoint::ActivateBreakpoints(where,false);	// Deactivate all breakpoints
	return true;
};

static bool StepOver()
{
	exitLoop = false;
	PhysPt start=GetAddress(SegValue(cs),reg_eip);
	char dline[200];Bitu size;
	size=DasmI386(dline, start, reg_eip, cpu.code.big);

	if (strstr(dline,"call") || strstr(dline,"int") || strstr(dline,"loop") || strstr(dline,"rep")) {
		CBreakpoint::AddBreakpoint		(SegValue(cs),reg_eip+size, true);
		CBreakpoint::ActivateBreakpoints(start, true);
		debugging=false;
		DrawCode();
		DOSBOX_SetNormalLoop();
		return true;
	} 
	return false;
};

bool DEBUG_ExitLoop(void)
{
#if C_HEAVY_DEBUG
	DrawVariables();
#endif

	if (exitLoop) {
		exitLoop = false;
		return true;
	}
	return false;
};

/********************/
/*   Draw windows   */
/********************/

static void DrawData(void) {
	
	Bit8u ch;
	Bit32u add = dataOfs;
	Bit32u address;
	/* Data win */	
	for (int y=0; y<8; y++) {
		// Adress
		if (add<0x10000) mvwprintw (dbg.win_data,1+y,0,"%04X:%04X     ",dataSeg,add);
		else mvwprintw (dbg.win_data,1+y,0,"%04X:%08X ",dataSeg,add);
		for (int x=0; x<16; x++) {
			address = GetAddress(dataSeg,add);
			if (!(paging.tlb.handler[address >> 12]->flags & PFLAG_INIT)) {
				ch = mem_readb(address);
			} else ch = 0;
			mvwprintw (dbg.win_data,1+y,14+3*x,"%02X",ch);
			if (ch<32 || !isprint(*reinterpret_cast<unsigned char*>(&ch))) ch='.';
			mvwprintw (dbg.win_data,1+y,63+x,"%c",ch);
			add++;
		};
	}	
	wrefresh(dbg.win_data);
};

static void DrawRegisters(void) {
	/* Main Registers */
	SetColor(reg_eax!=oldregs.eax);oldregs.eax=reg_eax;mvwprintw (dbg.win_reg,0,4,"%08X",reg_eax);
	SetColor(reg_ebx!=oldregs.ebx);oldregs.ebx=reg_ebx;mvwprintw (dbg.win_reg,1,4,"%08X",reg_ebx);
	SetColor(reg_ecx!=oldregs.ecx);oldregs.ecx=reg_ecx;mvwprintw (dbg.win_reg,2,4,"%08X",reg_ecx);
	SetColor(reg_edx!=oldregs.edx);oldregs.edx=reg_edx;mvwprintw (dbg.win_reg,3,4,"%08X",reg_edx);

	SetColor(reg_esi!=oldregs.esi);oldregs.esi=reg_esi;mvwprintw (dbg.win_reg,0,18,"%08X",reg_esi);
	SetColor(reg_edi!=oldregs.edi);oldregs.edi=reg_edi;mvwprintw (dbg.win_reg,1,18,"%08X",reg_edi);
	SetColor(reg_ebp!=oldregs.ebp);oldregs.ebp=reg_ebp;mvwprintw (dbg.win_reg,2,18,"%08X",reg_ebp);
	SetColor(reg_esp!=oldregs.esp);oldregs.esp=reg_esp;mvwprintw (dbg.win_reg,3,18,"%08X",reg_esp);
	SetColor(reg_eip!=oldregs.eip);oldregs.eip=reg_eip;mvwprintw (dbg.win_reg,1,42,"%08X",reg_eip);
	
	SetColor(SegValue(ds)!=oldsegs[ds].val);oldsegs[ds].val=SegValue(ds);mvwprintw (dbg.win_reg,0,31,"%04X",SegValue(ds));
	SetColor(SegValue(es)!=oldsegs[es].val);oldsegs[es].val=SegValue(es);mvwprintw (dbg.win_reg,0,41,"%04X",SegValue(es));
	SetColor(SegValue(fs)!=oldsegs[fs].val);oldsegs[fs].val=SegValue(fs);mvwprintw (dbg.win_reg,0,51,"%04X",SegValue(fs));
	SetColor(SegValue(gs)!=oldsegs[gs].val);oldsegs[gs].val=SegValue(gs);mvwprintw (dbg.win_reg,0,61,"%04X",SegValue(gs));
	SetColor(SegValue(ss)!=oldsegs[ss].val);oldsegs[ss].val=SegValue(ss);mvwprintw (dbg.win_reg,0,71,"%04X",SegValue(ss));
	SetColor(SegValue(cs)!=oldsegs[cs].val);oldsegs[cs].val=SegValue(cs);mvwprintw (dbg.win_reg,1,31,"%04X",SegValue(cs));

	/*Individual flags*/
	Bitu changed_flags = reg_flags ^ oldflags;
	oldflags = reg_flags;

	SetColor(changed_flags&FLAG_CF);
	mvwprintw (dbg.win_reg,1,53,"%01X",GETFLAG(CF) ? 1:0);
	SetColor(changed_flags&FLAG_ZF);
	mvwprintw (dbg.win_reg,1,56,"%01X",GETFLAG(ZF) ? 1:0);
	SetColor(changed_flags&FLAG_SF);
	mvwprintw (dbg.win_reg,1,59,"%01X",GETFLAG(SF) ? 1:0);
	SetColor(changed_flags&FLAG_OF);
	mvwprintw (dbg.win_reg,1,62,"%01X",GETFLAG(OF) ? 1:0);
	SetColor(changed_flags&FLAG_AF);
	mvwprintw (dbg.win_reg,1,65,"%01X",GETFLAG(AF) ? 1:0);
	SetColor(changed_flags&FLAG_PF);
	mvwprintw (dbg.win_reg,1,68,"%01X",GETFLAG(PF) ? 1:0);


	SetColor(changed_flags&FLAG_DF);
	mvwprintw (dbg.win_reg,1,71,"%01X",GETFLAG(DF) ? 1:0);
	SetColor(changed_flags&FLAG_IF);
	mvwprintw (dbg.win_reg,1,74,"%01X",GETFLAG(IF) ? 1:0);
	SetColor(changed_flags&FLAG_TF);
	mvwprintw (dbg.win_reg,1,77,"%01X",GETFLAG(TF) ? 1:0);

	SetColor(changed_flags&FLAG_IOPL);
	mvwprintw (dbg.win_reg,2,72,"%01X",GETFLAG(IOPL)>>12);


	SetColor(cpu.cpl ^ oldcpucpl);
	mvwprintw (dbg.win_reg,2,78,"%01X",cpu.cpl);
	oldcpucpl=cpu.cpl;

	if (cpu.pmode) {
		if (reg_flags & FLAG_VM) mvwprintw(dbg.win_reg,0,76,"VM86");
		else if (cpu.code.big) mvwprintw(dbg.win_reg,0,76,"Pr32");
		else mvwprintw(dbg.win_reg,0,76,"Pr16");
	} else	
		mvwprintw(dbg.win_reg,0,76,"Real");

	// Selector info, if available
	if ((cpu.pmode) && curSelectorName[0]) {
		char out1[200], out2[200];
		GetDescriptorInfo(curSelectorName,out1,out2);
		mvwprintw(dbg.win_reg,2,28,out1);
		mvwprintw(dbg.win_reg,3,28,out2);
	}

	wattrset(dbg.win_reg,0);
	mvwprintw(dbg.win_reg,3,60,"%u       ",cycle_count);
	wrefresh(dbg.win_reg);
};

static void DrawCode(void) 
{
	bool saveSel; 
	Bit32u disEIP = codeViewData.useEIP;
	PhysPt start  = GetAddress(codeViewData.useCS,codeViewData.useEIP);
	char dline[200];Bitu size;Bitu c;
	static char line20[21] = "                    ";
	
	for (int i=0;i<10;i++) {
		saveSel = false;
		if (has_colors()) {
			if ((codeViewData.useCS==SegValue(cs)) && (disEIP == reg_eip)) {
				wattrset(dbg.win_code,COLOR_PAIR(PAIR_GREEN_BLACK));			
				if (codeViewData.cursorPos==-1) {
					codeViewData.cursorPos = i; // Set Cursor 
					codeViewData.cursorSeg = SegValue(cs);
					codeViewData.cursorOfs = disEIP;
				}
				saveSel = (i == codeViewData.cursorPos);
			} else if (i == codeViewData.cursorPos) {
				wattrset(dbg.win_code,COLOR_PAIR(PAIR_BLACK_GREY));			
				codeViewData.cursorSeg = codeViewData.useCS;
				codeViewData.cursorOfs = disEIP;
				saveSel = true;
			} else if (CBreakpoint::IsBreakpointDrawn(start)) {
				wattrset(dbg.win_code,COLOR_PAIR(PAIR_GREY_RED));			
			} else {
				wattrset(dbg.win_code,0);			
			}
		}


		Bitu drawsize=size=DasmI386(dline, start, disEIP, cpu.code.big);
		bool toolarge = false;
		mvwprintw(dbg.win_code,i,0,"%04X:%04X  ",codeViewData.useCS,disEIP);
		
		if (drawsize>10) { toolarge = true; drawsize = 9; };
		for (c=0;c<drawsize;c++) wprintw(dbg.win_code,"%02X",mem_readb(start+c));
		if (toolarge) { waddstr(dbg.win_code,".."); drawsize++; };
		// Spacepad up to 20 characters
		if(drawsize && (drawsize < 10)) {
			line20[20 - drawsize*2] = 0;
			waddstr(dbg.win_code,line20);
			line20[20 - drawsize*2] = ' ';
		} else waddstr(dbg.win_code,line20);

		char* res = "";
		if (showExtend) res = AnalyzeInstruction(dline, saveSel);
		// Spacepad it up to 28 characters
		size_t dline_len = strlen(dline);
		if(dline_len < 28) for (c = dline_len; c < 28;c++) dline[c] = ' '; dline[28] = 0;
		waddstr(dbg.win_code,dline);
		// Spacepad it up to 20 characters
		size_t res_len = strlen(res);
		if(res_len && (res_len < 21)) {
			waddstr(dbg.win_code,res);
			line20[20-res_len] = 0;
			waddstr(dbg.win_code,line20);
			line20[20-res_len] = ' ';
		} else 	waddstr(dbg.win_code,line20);
		
		start+=size;
		disEIP+=size;

		if (i==0) codeViewData.firstInstSize = size;
		if (i==4) codeViewData.useEIPmid	 = disEIP;
	}

	codeViewData.useEIPlast = disEIP;
	
	wattrset(dbg.win_code,0);			
	if (!debugging) {
		mvwprintw(dbg.win_code,10,0,"(Running)",codeViewData.inputStr);
	} else { 
		if(!*codeViewData.inputStr) { //Clear old commands
			mvwprintw(dbg.win_code,10,0,"                                                                            ");
		}
		mvwprintw(dbg.win_code,10,0,"-> %s_  ",codeViewData.inputStr);
	}

	wrefresh(dbg.win_code);
}

static void SetCodeWinStart()
{
	if ((SegValue(cs)==codeViewData.useCS) && (reg_eip>=codeViewData.useEIP) && (reg_eip<=codeViewData.useEIPlast)) {
		// in valid window - scroll ?
		if (reg_eip>=codeViewData.useEIPmid) codeViewData.useEIP += codeViewData.firstInstSize;
		
	} else {
		// totally out of range.
		codeViewData.useCS	= SegValue(cs);
		codeViewData.useEIP	= reg_eip;
	}
	codeViewData.cursorPos = -1;	// Recalc Cursor position
};

/********************/
/*    User input    */
/********************/

Bit32u GetHexValue(char* str, char*& hex)
{
	Bit32u	value = 0;
	Bit32u regval = 0;
	hex = str;
	while (*hex==' ') hex++;
	if (strstr(hex,"EAX")==hex) { hex+=3; regval = reg_eax; };
	if (strstr(hex,"EBX")==hex) { hex+=3; regval = reg_ebx; };
	if (strstr(hex,"ECX")==hex) { hex+=3; regval = reg_ecx; };
	if (strstr(hex,"EDX")==hex) { hex+=3; regval = reg_edx; };
	if (strstr(hex,"ESI")==hex) { hex+=3; regval = reg_esi; };
	if (strstr(hex,"EDI")==hex) { hex+=3; regval = reg_edi; };
	if (strstr(hex,"EBP")==hex) { hex+=3; regval = reg_ebp; };
	if (strstr(hex,"ESP")==hex) { hex+=3; regval = reg_esp; };
	if (strstr(hex,"EIP")==hex) { hex+=3; regval = reg_eip; };
	if (strstr(hex,"AX")==hex) { hex+=2; regval = reg_ax; };
	if (strstr(hex,"BX")==hex) { hex+=2; regval = reg_bx; };
	if (strstr(hex,"CX")==hex) { hex+=2; regval = reg_cx; };
	if (strstr(hex,"DX")==hex) { hex+=2; regval = reg_dx; };
	if (strstr(hex,"SI")==hex) { hex+=2; regval = reg_si; };
	if (strstr(hex,"DI")==hex) { hex+=2; regval = reg_di; };
	if (strstr(hex,"BP")==hex) { hex+=2; regval = reg_bp; };
	if (strstr(hex,"SP")==hex) { hex+=2; regval = reg_sp; };
	if (strstr(hex,"IP")==hex) { hex+=2; regval = reg_ip; };
	if (strstr(hex,"CS")==hex) { hex+=2; regval = SegValue(cs); };
	if (strstr(hex,"DS")==hex) { hex+=2; regval = SegValue(ds); };
	if (strstr(hex,"ES")==hex) { hex+=2; regval = SegValue(es); };
	if (strstr(hex,"FS")==hex) { hex+=2; regval = SegValue(fs); };
	if (strstr(hex,"GS")==hex) { hex+=2; regval = SegValue(gs); };
	if (strstr(hex,"SS")==hex) { hex+=2; regval = SegValue(ss); };

	while (*hex) {
		if ((*hex>='0') && (*hex<='9')) value = (value<<4)+*hex-'0';
		else if ((*hex>='A') && (*hex<='F')) value = (value<<4)+*hex-'A'+10; 
		else { 
			if(*hex == '+') {hex++;return regval + value + GetHexValue(hex,hex); };
			if(*hex == '-') {hex++;return regval + value - GetHexValue(hex,hex); };
			break; // No valid char
		}
		hex++;
	};
	return regval + value;
};

bool ChangeRegister(char* str)
{
	char* hex = str;
	while (*hex==' ') hex++;
	if (strstr(hex,"EAX")==hex) { hex+=3; reg_eax = GetHexValue(hex,hex); } else
	if (strstr(hex,"EBX")==hex) { hex+=3; reg_ebx = GetHexValue(hex,hex); } else
	if (strstr(hex,"ECX")==hex) { hex+=3; reg_ecx = GetHexValue(hex,hex); } else
	if (strstr(hex,"EDX")==hex) { hex+=3; reg_edx = GetHexValue(hex,hex); } else
	if (strstr(hex,"ESI")==hex) { hex+=3; reg_esi = GetHexValue(hex,hex); } else
	if (strstr(hex,"EDI")==hex) { hex+=3; reg_edi = GetHexValue(hex,hex); } else
	if (strstr(hex,"EBP")==hex) { hex+=3; reg_ebp = GetHexValue(hex,hex); } else
	if (strstr(hex,"ESP")==hex) { hex+=3; reg_esp = GetHexValue(hex,hex); } else
	if (strstr(hex,"EIP")==hex) { hex+=3; reg_eip = GetHexValue(hex,hex); } else
	if (strstr(hex,"AX")==hex) { hex+=2; reg_ax = (Bit16u)GetHexValue(hex,hex); } else
	if (strstr(hex,"BX")==hex) { hex+=2; reg_bx = (Bit16u)GetHexValue(hex,hex); } else
	if (strstr(hex,"CX")==hex) { hex+=2; reg_cx = (Bit16u)GetHexValue(hex,hex); } else
	if (strstr(hex,"DX")==hex) { hex+=2; reg_dx = (Bit16u)GetHexValue(hex,hex); } else
	if (strstr(hex,"SI")==hex) { hex+=2; reg_si = (Bit16u)GetHexValue(hex,hex); } else
	if (strstr(hex,"DI")==hex) { hex+=2; reg_di = (Bit16u)GetHexValue(hex,hex); } else
	if (strstr(hex,"BP")==hex) { hex+=2; reg_bp = (Bit16u)GetHexValue(hex,hex); } else
	if (strstr(hex,"SP")==hex) { hex+=2; reg_sp = (Bit16u)GetHexValue(hex,hex); } else
	if (strstr(hex,"IP")==hex) { hex+=2; reg_ip = (Bit16u)GetHexValue(hex,hex); } else
	if (strstr(hex,"CS")==hex) { hex+=2; SegSet16(cs,(Bit16u)GetHexValue(hex,hex)); } else
	if (strstr(hex,"DS")==hex) { hex+=2; SegSet16(ds,(Bit16u)GetHexValue(hex,hex)); } else
	if (strstr(hex,"ES")==hex) { hex+=2; SegSet16(es,(Bit16u)GetHexValue(hex,hex)); } else
	if (strstr(hex,"FS")==hex) { hex+=2; SegSet16(fs,(Bit16u)GetHexValue(hex,hex)); } else
	if (strstr(hex,"GS")==hex) { hex+=2; SegSet16(gs,(Bit16u)GetHexValue(hex,hex)); } else
	if (strstr(hex,"SS")==hex) { hex+=2; SegSet16(ss,(Bit16u)GetHexValue(hex,hex)); } else
	if (strstr(hex,"AF")==hex) { hex+=2; SETFLAGBIT(AF,GetHexValue(hex,hex)); } else
	if (strstr(hex,"CF")==hex) { hex+=2; SETFLAGBIT(CF,GetHexValue(hex,hex)); } else
	if (strstr(hex,"DF")==hex) { hex+=2; SETFLAGBIT(DF,GetHexValue(hex,hex)); } else
	if (strstr(hex,"IF")==hex) { hex+=2; SETFLAGBIT(IF,GetHexValue(hex,hex)); } else
	if (strstr(hex,"OF")==hex) { hex+=2; SETFLAGBIT(OF,GetHexValue(hex,hex)); } else
	if (strstr(hex,"ZF")==hex) { hex+=2; SETFLAGBIT(ZF,GetHexValue(hex,hex)); } else
	if (strstr(hex,"PF")==hex) { hex+=2; SETFLAGBIT(PF,GetHexValue(hex,hex)); } else
	if (strstr(hex,"SF")==hex) { hex+=2; SETFLAGBIT(SF,GetHexValue(hex,hex)); } else
	{ return false; };
	return true;
};

bool ParseCommand(char* str) {
	char* found = str;
	for(char* idx = found;*idx != 0; idx++)
		*idx = toupper(*idx);

	found = trim(found);
	string s_found(found);
	istringstream stream(s_found);
	string command;
	stream >> command;
	string::size_type next = s_found.find_first_not_of(' ',command.size());
	if(next == string::npos) next = command.size();
	(s_found.erase)(0,next);
	found = const_cast<char*>(s_found.c_str());

	if (command == "MEMDUMP") { // Dump memory to file
		Bit16u seg = (Bit16u)GetHexValue(found,found); found++;
		Bit32u ofs = GetHexValue(found,found); found++;
		Bit32u num = GetHexValue(found,found); found++;
		SaveMemory(seg,ofs,num);
		return true;
	};

	if (command == "MEMDUMPBIN") { // Dump memory to file bineary
		Bit16u seg = (Bit16u)GetHexValue(found,found); found++;
		Bit32u ofs = GetHexValue(found,found); found++;
		Bit32u num = GetHexValue(found,found); found++;
		SaveMemoryBin(seg,ofs,num);
		return true;
	};

	if (command == "IV") { // Insert variable
		Bit16u seg = (Bit16u)GetHexValue(found,found); found++;
		Bit32u ofs = (Bit16u)GetHexValue(found,found); found++;
		char name[16];
		for (int i=0; i<16; i++) {
			if (found[i] && (found[i]!=' ')) name[i] = found[i]; 
			else { name[i] = 0; break; };
		};
		name[15] = 0;

		if(!name[0]) return false;
		DEBUG_ShowMsg("DEBUG: Created debug var %s at %04X:%04X\n",name,seg,ofs);
		CDebugVar::InsertVariable(name,GetAddress(seg,ofs));
		return true;
	};

	if (command == "SV") { // Save variables
		char name[13];
		for (int i=0; i<12; i++) {
			if (found[i] && (found[i]!=' ')) name[i] = found[i]; 
			else { name[i] = 0; break; };
		};
		name[12] = 0;
		if(!name[0]) return false;
		DEBUG_ShowMsg("DEBUG: Variable list save (%s) : %s.\n",name,(CDebugVar::SaveVars(name)?"ok":"failure"));
		return true;
	};

	if (command == "LV") { // load variables
		char name[13];
		for (int i=0; i<12; i++) {
			if (found[i] && (found[i]!=' ')) name[i] = found[i]; 
			else { name[i] = 0; break; };
		};
		name[12] = 0;
		if(!name[0]) return false;
		DEBUG_ShowMsg("DEBUG: Variable list load (%s) : %s.\n",name,(CDebugVar::SaveVars(name)?"ok":"failure"));
		return true;
	};

	if (command == "SR") { // Set register value
		DEBUG_ShowMsg("DEBUG: Set Register success.\n",(ChangeRegister(found)?"success":"failure"));
		return true;
	};

	if (command == "SM") { // Set memory with following values
		Bit16u seg = (Bit16u)GetHexValue(found,found); found++;
		Bit32u ofs = GetHexValue(found,found); found++;
		Bit16u count = 0;
		while (*found) {
			while (*found==' ') found++;
			if (*found) {
				Bit8u value = (Bit8u)GetHexValue(found,found);
				if(*found) found++;
				mem_writeb(GetAddress(seg,ofs+count),value);
				count++;
			}
		};
		DEBUG_ShowMsg("DEBUG: Memory changed.\n");
		return true;
	};

	if (command == "BP") { // Add new breakpoint
		Bit16u seg = (Bit16u)GetHexValue(found,found);found++; // skip ":"
		Bit32u ofs = GetHexValue(found,found);
		CBreakpoint::AddBreakpoint(seg,ofs,false);
		DEBUG_ShowMsg("DEBUG: Set breakpoint at %04X:%04X\n",seg,ofs);
		return true;
	};

#if C_HEAVY_DEBUG

	if (command == "BPM") { // Add new breakpoint
		Bit16u seg = (Bit16u)GetHexValue(found,found);found++; // skip ":"
		Bit32u ofs = GetHexValue(found,found);
		CBreakpoint::AddMemBreakpoint(seg,ofs);
		DEBUG_ShowMsg("DEBUG: Set memory breakpoint at %04X:%04X\n",seg,ofs);
		return true;
	};

	if (command == "BPPM") { // Add new breakpoint
		Bit16u seg = (Bit16u)GetHexValue(found,found);found++; // skip ":"
		Bit32u ofs = GetHexValue(found,found);
		CBreakpoint* bp = CBreakpoint::AddMemBreakpoint(seg,ofs);
		if (bp)	{
			bp->SetType(BKPNT_MEMORY_PROT);
			DEBUG_ShowMsg("DEBUG: Set prot-mode memory breakpoint at %04X:%08X\n",seg,ofs);
		}
		return true;
	};

	if (command == "BPLM") { // Add new breakpoint
		Bit32u ofs = GetHexValue(found,found);
		CBreakpoint* bp = CBreakpoint::AddMemBreakpoint(0,ofs);
		if (bp) bp->SetType(BKPNT_MEMORY_LINEAR);
		DEBUG_ShowMsg("DEBUG: Set linear memory breakpoint at %08X\n",ofs);
		return true;
	};

#endif

	if (command == "BPINT") { // Add Interrupt Breakpoint
		Bit8u intNr	= (Bit8u)GetHexValue(found,found);
		bool all = !(*found);found++;
		Bit8u valAH	= (Bit8u)GetHexValue(found,found);
		if ((valAH==0x00) && (*found=='*' || all)) {
			CBreakpoint::AddIntBreakpoint(intNr,BPINT_ALL,false);
			DEBUG_ShowMsg("DEBUG: Set interrupt breakpoint at INT %02X\n",intNr);
		} else {
			CBreakpoint::AddIntBreakpoint(intNr,valAH,false);
			DEBUG_ShowMsg("DEBUG: Set interrupt breakpoint at INT %02X AH=%02X\n",intNr,valAH);
		}
		return true;
	};

	if (command == "BPLIST") {
		DEBUG_ShowMsg("Breakpoint list:\n");
		DEBUG_ShowMsg("-------------------------------------------------------------------------\n");
		CBreakpoint::ShowList();
		return true;
	};

	if (command == "BPDEL") { // Delete Breakpoints
		Bit8u bpNr	= (Bit8u)GetHexValue(found,found); 
		if ((bpNr==0x00) && (*found=='*')) { // Delete all
			CBreakpoint::DeleteAll();		
			DEBUG_ShowMsg("DEBUG: Breakpoints deleted.\n");
		} else {		
			// delete single breakpoint
			CBreakpoint::DeleteByIndex(bpNr);
		}
		return true;
	};

	if (command == "C") { // Set code overview
		Bit16u codeSeg = (Bit16u)GetHexValue(found,found); found++;
		Bit32u codeOfs = GetHexValue(found,found);
		DEBUG_ShowMsg("DEBUG: Set code overview to %04X:%04X\n",codeSeg,codeOfs);
		codeViewData.useCS	= codeSeg;
		codeViewData.useEIP = codeOfs;
		return true;
	};

	if (command == "D") { // Set data overview
		dataSeg = (Bit16u)GetHexValue(found,found); found++;
		dataOfs = GetHexValue(found,found);
		DEBUG_ShowMsg("DEBUG: Set data overview to %04X:%04X\n",dataSeg,dataOfs);
		return true;
	};

#if C_HEAVY_DEBUG

	if (command == "LOG") { // Create Cpu normal log file
		cpuLogType = 1;
		command = "logcode";
	}

	if (command == "LOGS") { // Create Cpu short log file
		cpuLogType = 0;
		command = "logcode";
	}

	if (command == "LOGL") { // Create Cpu long log file
		cpuLogType = 2;
		command = "logcode";
	}

	if (command == "logcode") { //Shared code between all logs
		DEBUG_ShowMsg("DEBUG: Starting log\n");
		cpuLogFile.open("LOGCPU.TXT");
		if (!cpuLogFile.is_open()) {
			DEBUG_ShowMsg("DEBUG: Logfile couldn't be created.\n");
			return false;
		}
		//Initialize log object
		cpuLogFile << hex << noshowbase << setfill('0') << uppercase;
		cpuLog = true;
		cpuLogCounter = GetHexValue(found,found);

		debugging = false;
		CBreakpoint::ActivateBreakpoints(SegPhys(cs)+reg_eip,true);						
		ignoreAddressOnce = SegPhys(cs)+reg_eip;
		DOSBOX_SetNormalLoop();	
		return true;
	};

#endif

	if (command == "INTT") { //trace int.
		Bit8u intNr = (Bit8u)GetHexValue(found,found);
		DEBUG_ShowMsg("DEBUG: Tracing INT %02X\n",intNr);
		CPU_HW_Interrupt(intNr);
		SetCodeWinStart();
		return true;
	};

	if (command == "INT") { // start int.
		Bit8u intNr = (Bit8u)GetHexValue(found,found);
		DEBUG_ShowMsg("DEBUG: Starting INT %02X\n",intNr);
		CBreakpoint::AddBreakpoint(SegValue(cs),reg_eip, true);
		CBreakpoint::ActivateBreakpoints(SegPhys(cs)+reg_eip-1,true);
		debugging = false;
		DrawCode();
		DOSBOX_SetNormalLoop();
		CPU_HW_Interrupt(intNr);
		return true;
	};	

	if (command == "SELINFO") {
		while (found[0] == ' ') found++;
		char out1[200],out2[200];
		GetDescriptorInfo(found,out1,out2);
		DEBUG_ShowMsg("SelectorInfo %s:\n%s\n%s\n",found,out1,out2);
	};

	if (command == "GDT") {LogGDT(); return true;}
	
	if (command == "LDT") {LogLDT(); return true;}
	
	if (command == "IDT") {LogIDT(); return true;}
	
	if (command == "PAGING") {LogPages(found); return true;}

	if (command == "CPU") {LogCPUInfo(); return true;}

	if (command == "INTVEC") {
		if (found[0] != 0) {
			OutputVecTable(found);
			return true;
		}
	};

	if (command == "INTHAND") {
		if (found[0] != 0) {
			Bit8u intNr = (Bit8u)GetHexValue(found,found);
			DEBUG_ShowMsg("DEBUG: Set code overview to interrupt handler %X\n",intNr);
			codeViewData.useCS	= mem_readw(intNr*4+2);
			codeViewData.useEIP = mem_readw(intNr*4);
			return true;
		}
	};

	if(command == "EXTEND") { //Toggle additional data.	
		showExtend = !showExtend;
		return true;
	};

	if(command == "TIMERIRQ") { //Start a timer irq
		DEBUG_RaiseTimerIrq(); 
		DEBUG_ShowMsg("Debug: Timer Int started.\n");
		return true;
	};


#if C_HEAVY_DEBUG
	if (command == "HEAVYLOG") { // Create Cpu log file
		logHeavy = !logHeavy;
		DEBUG_ShowMsg("DEBUG: Heavy cpu logging %s.\n",logHeavy?"on":"off");
		return true;
	};

	if (command == "ZEROPROTECT") { //toggle zero protection
		zeroProtect = !zeroProtect;
		DEBUG_ShowMsg("DEBUG: Zero code execution protection %s.\n",zeroProtect?"on":"off");
		return true;
	};

#endif
	if (command == "HELP" || command == "?") {
		DEBUG_ShowMsg("Debugger commands (enter all values in hex or as register):\n");
		DEBUG_ShowMsg("--------------------------------------------------------------------------\n");
		DEBUG_ShowMsg("F5                        - Run.\n");
		DEBUG_ShowMsg("F9                        - Set/Remove breakpoint.\n");
		DEBUG_ShowMsg("F10/F11                   - Step over / trace into instruction.\n");
		DEBUG_ShowMsg("ALT + D/E/S/X/B           - Set data view to DS:SI/ES:DI/SS:SP/DS:DX/ES:BX.\n");
		DEBUG_ShowMsg("Escape                    - clear input line.");
		DEBUG_ShowMsg("Up/Down                   - Move code view cursor.\n");
		DEBUG_ShowMsg("Page Up/Down              - Scroll data view.\n");
		DEBUG_ShowMsg("BP     [segment]:[offset] - Set breakpoint.\n");
		DEBUG_ShowMsg("BPINT  [intNr] *          - Set interrupt breakpoint.\n");
		DEBUG_ShowMsg("BPINT  [intNr] [ah]       - Set interrupt breakpoint with ah.\n");
#if C_HEAVY_DEBUG
		DEBUG_ShowMsg("BPM    [segment]:[offset] - Set memory breakpoint (memory change).\n");
		DEBUG_ShowMsg("BPPM   [selector]:[offset]- Set pmode-memory breakpoint (memory change).\n");
		DEBUG_ShowMsg("BPLM   [linear address]   - Set linear memory breakpoint (memory change).\n");
#endif
		DEBUG_ShowMsg("BPLIST                    - List breakpoints.\n");		
		DEBUG_ShowMsg("BPDEL  [bpNr] / *         - Delete breakpoint nr / all.\n");
		DEBUG_ShowMsg("C / D  [segment]:[offset] - Set code / data view address.\n");
		DEBUG_ShowMsg("INT [nr] / INTT [nr]      - Execute / Trace into interrupt.\n");
#if C_HEAVY_DEBUG
		DEBUG_ShowMsg("LOG [num]                 - Write cpu log file.\n");
		DEBUG_ShowMsg("LOGS/LOGL [num]           - Write short/long cpu log file.\n");
		DEBUG_ShowMsg("HEAVYLOG                  - Enable/Disable automatic cpu when dosbox exits.\n");
		DEBUG_ShowMsg("ZEROPROTECT               - Enable/Disable zero code execution detecion.\n");
#endif
		DEBUG_ShowMsg("SR [reg] [value]          - Set register value.\n");
		DEBUG_ShowMsg("SM [seg]:[off] [val] [.]..- Set memory with following values.\n");	
	
		DEBUG_ShowMsg("IV [seg]:[off] [name]     - Create var name for memory address.\n");
		DEBUG_ShowMsg("SV [filename]             - Save var list in file.\n");
		DEBUG_ShowMsg("LV [filename]             - Load var list from file.\n");

		DEBUG_ShowMsg("MEMDUMP [seg]:[off] [len] - Write memory to file memdump.txt.\n");
		DEBUG_ShowMsg("MEMDUMPBIN [s]:[o] [len]  - Write memory to file memdump.bin.\n");
		DEBUG_ShowMsg("SELINFO [segName]         - Show selector info.\n");

		DEBUG_ShowMsg("INTVEC [filename]         - Writes interrupt vector table to file.\n");
		DEBUG_ShowMsg("INTHAND [intNum]          - Set code view to interrupt handler.\n");

		DEBUG_ShowMsg("CPU                       - Display CPU status information.\n");
		DEBUG_ShowMsg("GDT                       - Lists descriptors of the GDT.\n");
		DEBUG_ShowMsg("LDT                       - Lists descriptors of the LDT.\n");
		DEBUG_ShowMsg("IDT                       - Lists descriptors of the IDT.\n");
		DEBUG_ShowMsg("PAGING [page]             - Display content of page table.\n");
		DEBUG_ShowMsg("EXTEND                    - Toggle additional info.\n");
		DEBUG_ShowMsg("TIMERIRQ                  - Run the system timer.\n");

		DEBUG_ShowMsg("HELP                      - Help\n");
		
		return true;
	};
	return false;
};

char* AnalyzeInstruction(char* inst, bool saveSelector)
{
	static char result[256];
	
	char instu[256];
	char prefix[3];
	Bit16u seg;

	strcpy(instu,inst);
	upcase(instu);

	result[0] = 0;
	char* pos = strchr(instu,'[');
	if (pos) {
		// Segment prefix ?
		if (*(pos-1)==':') {
			char* segpos = pos-3;
			prefix[0] = tolower(*segpos);
			prefix[1] = tolower(*(segpos+1));
			prefix[2] = 0;
			seg = (Bit16u)GetHexValue(segpos,segpos);
		} else {
			if (strstr(pos,"SP") || strstr(pos,"BP")) {
				seg = SegValue(ss);
				strcpy(prefix,"ss");
			} else {
				seg = SegValue(ds);
				strcpy(prefix,"ds");
			};
		};

		pos++;
		Bit32u adr = GetHexValue(pos,pos);
		while (*pos!=']') {
			if (*pos=='+') {
				pos++;
				adr += GetHexValue(pos,pos);
			} else if (*pos=='-') {
				pos++;
				adr -= GetHexValue(pos,pos); 
			} else 
				pos++;
		};
		Bit32u address = GetAddress(seg,adr);
		if (!(paging.tlb.handler[address >> 12]->flags & PFLAG_INIT)) {
			static char outmask[] = "%s:[%04X]=%02X";
			
			if (cpu.pmode) outmask[6] = '8';
				switch (DasmLastOperandSize()) {
				case 8 : {	Bit8u val = mem_readb(address);
							outmask[12] = '2';
							sprintf(result,outmask,prefix,adr,val);
						}	break;
				case 16: {	Bit16u val = mem_readw(address);
							outmask[12] = '4';
							sprintf(result,outmask,prefix,adr,val);
						}	break;
				case 32: {	Bit32u val = mem_readd(address);
							outmask[12] = '8';
							sprintf(result,outmask,prefix,adr,val);
						}	break;
			}
		} else {
			sprintf(result,"[illegal]");
		}
		// Variable found ?
		CDebugVar* var = CDebugVar::FindVar(address);
		if (var) {
			// Replace occurance
			char* pos1 = strchr(inst,'[');
			char* pos2 = strchr(inst,']');
			if (pos1 && pos2) {
				char temp[256];
				strcpy(temp,pos2);				// save end
				pos1++; *pos1 = 0;				// cut after '['
				strcat(inst,var->GetName());	// add var name
				strcat(inst,temp);				// add end
			};
		};
		// show descriptor info, if available
		if ((cpu.pmode) && saveSelector) {
			strcpy(curSelectorName,prefix);
		};
	};
	// If it is a callback add additional info
	pos = strstr(inst,"callback");
	if (pos) {
		pos += 9;
		Bitu nr = GetHexValue(pos,pos);
		const char* descr = CALLBACK_GetDescription(nr);
		if (descr) {
			strcat(inst,"  ("); strcat(inst,descr); strcat(inst,")");
		}
	};
	// Must be a jump
	if (instu[0] == 'J')
	{
		bool jmp = false;
		switch (instu[1]) {
		case 'A' :	{	jmp = (get_CF()?false:true) && (get_ZF()?false:true); // JA
					}	break;
		case 'B' :	{	if (instu[2] == 'E') {
							jmp = (get_CF()?true:false) || (get_ZF()?true:false); // JBE
						} else {
							jmp = get_CF()?true:false; // JB
						}
					}	break;
		case 'C' :	{	if (instu[2] == 'X') {
							jmp = reg_cx == 0; // JCXZ
						} else {
							jmp = get_CF()?true:false; // JC
						}
					}	break;
		case 'E' :	{	jmp = get_ZF()?true:false; // JE
					}	break;
		case 'G' :	{	if (instu[2] == 'E') {
							jmp = (get_SF()?true:false)==(get_OF()?true:false); // JGE
						} else {
							jmp = (get_ZF()?false:true) && ((get_SF()?true:false)==(get_OF()?true:false)); // JG
						}
					}	break;
		case 'L' :	{	if (instu[2] == 'E') {
							jmp = (get_ZF()?true:false) || ((get_SF()?true:false)!=(get_OF()?true:false)); // JLE
						} else {
							jmp = (get_SF()?true:false)!=(get_OF()?true:false); // JL
						}
					}	break;
		case 'M' :	{	jmp = true; // JMP
					}	break;
		case 'N' :	{	switch (instu[2]) {
						case 'B' :	
						case 'C' :	{	jmp = get_CF()?false:true;	// JNB / JNC
									}	break;
						case 'E' :	{	jmp = get_ZF()?false:true;	// JNE
									}	break;
						case 'O' :	{	jmp = get_OF()?false:true;	// JNO
									}	break;
						case 'P' :	{	jmp = get_PF()?false:true;	// JNP
									}	break;
						case 'S' :	{	jmp = get_SF()?false:true;	// JNS
									}	break;
						case 'Z' :	{	jmp = get_ZF()?false:true;	// JNZ
									}	break;
						}
					}	break;
		case 'O' :	{	jmp = get_OF()?true:false; // JO
					}	break;
		case 'P' :	{	if (instu[2] == 'O') {
							jmp = get_PF()?false:true; // JPO
						} else {
							jmp = get_SF()?true:false; // JP / JPE
						}
					}	break;
		case 'S' :	{	jmp = get_SF()?true:false; // JS
					}	break;
		case 'Z' :	{	jmp = get_ZF()?true:false; // JZ
					}	break;
		}
		if (jmp) {
			pos = strchr(instu,'+');
			if (pos) {
				strcpy(result,"(down)");
			} else {
				strcpy(result,"(up)");
			}
		} else {
			sprintf(result,"(no jmp)");
		}
	}
	return result;
};


Bit32u DEBUG_CheckKeys(void) {
	Bits ret=0;
	int key=getch();
	if (key>0) {
#if defined(WIN32) && defined(__PDCURSES__)
		switch (key) {
		case ALT_D:
			if (ungetch('D') != ERR) key=27;
			break;
		case ALT_E:
			if (ungetch('E') != ERR) key=27;
			break;
		case ALT_X:
			if (ungetch('X') != ERR) key=27;
			break;
		case ALT_B:
			if (ungetch('B') != ERR) key=27;
			break;
		case ALT_S:
			if (ungetch('S') != ERR) key=27;
			break;
		}
#endif
		switch (toupper(key)) {
		case 27:	// escape (a bit slow): Clears line. and processes alt commands.
			key=getch();
			if(key < 0) { //Purely escape Clear line
				codeViewData.inputStr[0] = 0; 
				break;
			}

			switch(toupper(key)) {
			case 'D' : // ALT - D: DS:SI
				dataSeg = SegValue(ds);
				if (cpu.pmode && !(reg_flags & FLAG_VM)) dataOfs = reg_esi;
				else dataOfs = reg_si;
				break;
			case 'E' : //ALT - E: es:di
				dataSeg = SegValue(es);
				if (cpu.pmode && !(reg_flags & FLAG_VM)) dataOfs = reg_edi;
				else dataOfs = reg_di;
				break;
			case 'X': //ALT - X: ds:dx
				dataSeg = SegValue(ds);
				if (cpu.pmode && !(reg_flags & FLAG_VM)) dataOfs = reg_edx;
				else dataOfs = reg_dx;
				break;
			case 'B' : //ALT -B: es:bx
				dataSeg = SegValue(es);
				if (cpu.pmode && !(reg_flags & FLAG_VM)) dataOfs = reg_ebx;
				else dataOfs = reg_bx;
				break;
			case 'S': //ALT - S: ss:sp
				dataSeg = SegValue(ss);
				if (cpu.pmode && !(reg_flags & FLAG_VM)) dataOfs = reg_esp;
				else dataOfs = reg_sp;
				break;
			default:
				break;
			}
			break;
		case KEY_PPAGE :	dataOfs -= 16;	break;
		case KEY_NPAGE :	dataOfs += 16;	break;

		case KEY_DOWN:	// down 
				if (codeViewData.cursorPos<9) codeViewData.cursorPos++;
				else codeViewData.useEIP += codeViewData.firstInstSize;	
				break;
		case KEY_UP:	// up 
				if (codeViewData.cursorPos>0) codeViewData.cursorPos--;
				else {
					Bitu bytes = 0;
					char dline[200];
					Bitu size = 0;
					Bit32u newEIP = codeViewData.useEIP - 1;
					if(codeViewData.useEIP) {
						for (; bytes < 10; bytes++) {
							PhysPt start = GetAddress(codeViewData.useCS,newEIP);
							size = DasmI386(dline, start, newEIP, cpu.code.big);
							if(codeViewData.useEIP == newEIP+size) break;
							newEIP--;
						}
						if (bytes>=10) newEIP = codeViewData.useEIP - 1;
					}
					codeViewData.useEIP = newEIP;
				}
				break;
		case KEY_HOME:	// Home: scroll log page up
				DEBUG_RefreshPage(-1);
				break;
		case KEY_END:	// End: scroll log page down
				DEBUG_RefreshPage(1);
				break;
		case KEY_F(5):	// Run Programm
				debugging=false;
				CBreakpoint::ActivateBreakpoints(SegPhys(cs)+reg_eip,true);						
				ignoreAddressOnce = SegPhys(cs)+reg_eip;
				DOSBOX_SetNormalLoop();	
				break;
		case KEY_F(9):	// Set/Remove TBreakpoint
				{	PhysPt ptr = GetAddress(codeViewData.cursorSeg,codeViewData.cursorOfs);
					if (CBreakpoint::IsBreakpoint(ptr)) CBreakpoint::DeleteBreakpoint(ptr);
					else								CBreakpoint::AddBreakpoint(codeViewData.cursorSeg, codeViewData.cursorOfs, false);
				}
						break;
		case KEY_F(10):	// Step over inst
				if (StepOver()) return 0;
				else {
					exitLoop = false;
					skipFirstInstruction = true; // for heavy debugger
					CPU_Cycles = 1;
					ret=(*cpudecoder)();
					SetCodeWinStart();
					CBreakpoint::ignoreOnce = 0;
				}
				break;
		case KEY_F(11):	// trace into
				exitLoop = false;
				skipFirstInstruction = true; // for heavy debugger
				CPU_Cycles = 1;
				ret = (*cpudecoder)();
				SetCodeWinStart();
				CBreakpoint::ignoreOnce = 0;
				break;
		case 0x0A: //Parse typed Command
				codeViewData.inputMode = true;
				if(ParseCommand(codeViewData.inputStr)) codeViewData.inputStr[0] = 0;
				break;
		case 0x107:     //backspace (linux)
		case 0x7f:	//backspace in some terminal emulators (linux)
		case 0x08:	// delete
				if (strlen(codeViewData.inputStr)>0) codeViewData.inputStr[strlen(codeViewData.inputStr)-1] = 0;
				break;
		default	:	if ((key>=32) && (key<=128) && (strlen(codeViewData.inputStr)<253)) {
					Bit32u len = strlen(codeViewData.inputStr);
					codeViewData.inputStr[len]	= char(key);
					codeViewData.inputStr[len+1] = 0;
				}
				break;

		}
                if (ret<0) return ret;
		if (ret>0) {
			ret=(*CallBack_Handlers[ret])();
			if (ret) {
				exitLoop=true;
				CPU_Cycles=CPU_CycleLeft=0;
				return ret;
			}
		}
		ret=0;
		DEBUG_DrawScreen();
	}
	return ret;
};

Bitu DEBUG_Loop(void) {
//TODO Disable sound
	GFX_Events();
	// Interrupt started ? - then skip it
	Bit16u oldCS	= SegValue(cs);
	Bit32u oldEIP	= reg_eip;
	PIC_runIRQs();
	SDL_Delay(1);
	if ((oldCS!=SegValue(cs)) || (oldEIP!=reg_eip)) {
		CBreakpoint::AddBreakpoint(oldCS,oldEIP,true);
		CBreakpoint::ActivateBreakpoints(SegPhys(cs)+reg_eip,true);
		debugging=false;
		DOSBOX_SetNormalLoop();
		return 0;
	}
	return DEBUG_CheckKeys();
}

void DEBUG_Enable(bool pressed) {
	if (!pressed)
		return;
	static bool showhelp=false;
	debugging=true;
	SetCodeWinStart();
	DEBUG_DrawScreen();
	DOSBOX_SetLoop(&DEBUG_Loop);
	if(!showhelp) { 
		showhelp=true;
		DEBUG_ShowMsg("***| TYPE HELP (+ENTER) TO GET AN OVERVIEW OF ALL COMMANDS |***\n");
	}
	KEYBOARD_ClrBuffer();
}

void DEBUG_DrawScreen(void) {
	DrawData();
	DrawCode();
	DrawRegisters();
	DrawVariables();
}

static void DEBUG_RaiseTimerIrq(void) {
	PIC_ActivateIRQ(0);
}

static void LogGDT(void)
{
	char out1[512];
	Descriptor desc;
	Bitu length = cpu.gdt.GetLimit();
	PhysPt address = cpu.gdt.GetBase();
	PhysPt max	   = address + length;
	Bitu i = 0;
	LOG(LOG_MISC,LOG_ERROR)("GDT Base:%08X Limit:%08X",address,length);
	while (address<max) {
		desc.Load(address);
		sprintf(out1,"%04X: b:%08X type: %02X parbg",(i<<3),desc.GetBase(),desc.saved.seg.type);
		LOG(LOG_MISC,LOG_ERROR)(out1);
		sprintf(out1,"      l:%08X dpl : %01X  %1X%1X%1X%1X%1X",desc.GetLimit(),desc.saved.seg.dpl,desc.saved.seg.p,desc.saved.seg.avl,desc.saved.seg.r,desc.saved.seg.big,desc.saved.seg.g);
		LOG(LOG_MISC,LOG_ERROR)(out1);
		address+=8; i++;
	};
};

static void LogLDT(void)
{
	char out1[512];
	Descriptor desc;
	Bitu ldtSelector = cpu.gdt.SLDT();
	cpu.gdt.GetDescriptor(ldtSelector,desc);
	Bitu length = desc.GetLimit();
	PhysPt address = desc.GetBase();
	PhysPt max	   = address + length;
	Bitu i = 0;
	LOG(LOG_MISC,LOG_ERROR)("LDT Base:%08X Limit:%08X",address,length);
	while (address<max) {
		desc.Load(address);
		sprintf(out1,"%04X: b:%08X type: %02X parbg",(i<<3)|4,desc.GetBase(),desc.saved.seg.type);
		LOG(LOG_MISC,LOG_ERROR)(out1);
		sprintf(out1,"      l:%08X dpl : %01X  %1X%1X%1X%1X%1X",desc.GetLimit(),desc.saved.seg.dpl,desc.saved.seg.p,desc.saved.seg.avl,desc.saved.seg.r,desc.saved.seg.big,desc.saved.seg.g);
		LOG(LOG_MISC,LOG_ERROR)(out1);
		address+=8; i++;
	};
};

static void LogIDT(void)
{
	char out1[512];
	Descriptor desc;
	Bitu address = 0;
	while (address<256*8) {
		cpu.idt.GetDescriptor(address,desc);
		sprintf(out1,"%04X: sel:%04X off:%02X",address/8,desc.GetSelector(),desc.GetOffset());
		LOG(LOG_MISC,LOG_ERROR)(out1);
		address+=8;
	};
};

void LogPages(char* selname)
{
	char out1[512];
	if (paging.enabled) {
		Bitu sel = GetHexValue(selname,selname);
		if ((sel==0x00) && ((*selname==0) || (*selname=='*'))) {
			for (int i=0; i<0xfffff; i++) {
				Bitu table_addr=(paging.base.page<<12)+(i >> 10)*4;
				X86PageEntry table;
				table.load=phys_readd(table_addr);
				if (table.block.p) {
					X86PageEntry entry;
					Bitu entry_addr=(table.block.base<<12)+(i & 0x3ff)*4;
					entry.load=phys_readd(entry_addr);
					if (entry.block.p) {
						sprintf(out1,"page %05Xxxx -> %04Xxxx  flags [uw] %x:%x::%x:%x",i,entry.block.base,entry.block.us,table.block.us,entry.block.wr,table.block.wr);
						LOG(LOG_MISC,LOG_ERROR)(out1);
					}
				}
			}
		} else {
			Bitu table_addr=(paging.base.page<<12)+(sel >> 10)*4;
			X86PageEntry table;
			table.load=phys_readd(table_addr);
			if (table.block.p) {
				X86PageEntry entry;
				Bitu entry_addr=(table.block.base<<12)+(sel & 0x3ff)*4;
				entry.load=phys_readd(entry_addr);
				sprintf(out1,"page %05Xxxx -> %04Xxxx  flags [puw] %x:%x::%x:%x::%x:%x",sel,entry.block.base,entry.block.p,table.block.p,entry.block.us,table.block.us,entry.block.wr,table.block.wr);
				LOG(LOG_MISC,LOG_ERROR)(out1);
			} else {
				sprintf(out1,"pagetable %03X not present, flags [puw] %x::%x::%x",(sel >> 10),table.block.p,table.block.us,table.block.wr);
				LOG(LOG_MISC,LOG_ERROR)(out1);
			}
		}
	}
};

static void LogCPUInfo(void)
{
	char out1[512];
	sprintf(out1,"cr0:%08X cr2:%08X cr3:%08X  cpl=%x",cpu.cr0,paging.cr2,paging.cr3,cpu.cpl);
	LOG(LOG_MISC,LOG_ERROR)(out1);
	sprintf(out1,"eflags:%08X [vm=%x iopl=%x nt=%x]",reg_flags,GETFLAG(VM)>>17,GETFLAG(IOPL)>>12,GETFLAG(NT)>>14);
	LOG(LOG_MISC,LOG_ERROR)(out1);
	sprintf(out1,"GDT base=%08X limit=%08X",cpu.gdt.GetBase(),cpu.gdt.GetLimit());
	LOG(LOG_MISC,LOG_ERROR)(out1);
	sprintf(out1,"IDT base=%08X limit=%08X",cpu.idt.GetBase(),cpu.idt.GetLimit());
	LOG(LOG_MISC,LOG_ERROR)(out1);

	Bitu sel=CPU_STR();
	Descriptor desc;
	cpu.gdt.GetDescriptor(sel,desc);
	sprintf(out1,"TR selector=%04X, base=%08X limit=%08X*%X",sel,desc.GetBase(),desc.GetLimit(),desc.saved.seg.g?0x4000:1);
	LOG(LOG_MISC,LOG_ERROR)(out1);
	sel=CPU_SLDT();
	cpu.gdt.GetDescriptor(sel,desc);
	sprintf(out1,"LDT selector=%04X, base=%08X limit=%08X*%X",sel,desc.GetBase(),desc.GetLimit(),desc.saved.seg.g?0x4000:1);
	LOG(LOG_MISC,LOG_ERROR)(out1);
};

#if C_HEAVY_DEBUG
static void LogInstruction(Bit16u segValue, Bit32u eipValue,  ofstream& out) {
	static char empty[23] = { 32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0 };

	PhysPt start = GetAddress(segValue,eipValue);
	char dline[200];Bitu size;
	size = DasmI386(dline, start, reg_eip, cpu.code.big);
	char* res = empty;
	if (showExtend && (cpuLogType > 0) ) {
		res = AnalyzeInstruction(dline,false);
		if (!res || !(*res)) res = empty;
		Bitu reslen = strlen(res);
		if (reslen<22) for (Bitu i=0; i<22-reslen; i++) res[reslen+i] = ' '; res[22] = 0;
	};
	Bitu len = strlen(dline);
	if (len<30) for (Bitu i=0; i<30-len; i++) dline[len + i] = ' '; dline[30] = 0;

	// Get register values

	if(cpuLogType == 0) {
		out << setw(4) << SegValue(cs) << ":" << setw(4) << reg_eip << "  " << dline;
	} else if (cpuLogType == 1) {
		out << setw(4) << SegValue(cs) << ":" << setw(8) << reg_eip << "  " << dline << "  " << res;
	} else if (cpuLogType == 2) {
		char ibytes[200]="";	char tmpc[200];
		for (Bitu i=0; i<size; i++) {
			sprintf(tmpc,"%02X ",mem_readb(start+i));
			strcat(ibytes,tmpc);
		}
		len = strlen(ibytes);
		if (len<21) { for (Bitu i=0; i<21-len; i++) ibytes[len + i] =' '; ibytes[21]=0;} //NOTE THE BRACKETS
		out << setw(4) << SegValue(cs) << ":" << setw(8) << reg_eip << "  " << dline << "  " << res << "  " << ibytes;
	}
   
	out << " EAX:" << setw(8) << reg_eax << " EBX:" << setw(8) << reg_ebx 
	    << " ECX:" << setw(8) << reg_ecx << " EDX:" << setw(8) << reg_edx
	    << " ESI:" << setw(8) << reg_esi << " EDI:" << setw(8) << reg_edi 
	    << " EBP:" << setw(8) << reg_ebp << " ESP:" << setw(8) << reg_esp 
	    << " DS:"  << setw(4) << SegValue(ds)<< " ES:"  << setw(4) << SegValue(es);

	if(cpuLogType == 0) {
		out << " SS:"  << setw(4) << SegValue(ss) << " C"  << get_CF()  << " Z"   << get_ZF()  
		    << " S" << get_SF() << " O"  << get_OF() << " I"  << GETFLAGBOOL(IF);
	} else {
		out << " FS:"  << setw(4) << SegValue(fs) << " GS:"  << setw(4) << SegValue(gs)
		    << " SS:"  << setw(4) << SegValue(ss)
		    << " CF:"  << get_CF()  << " ZF:"   << get_ZF()  << " SF:"  << get_SF()
		    << " OF:"  << get_OF()  << " AF:"   << get_AF()  << " PF:"  << get_PF()
		    << " IF:"  << GETFLAGBOOL(IF);
	}
	if(cpuLogType == 2) {
		out << " TF:" << GETFLAGBOOL(TF) << " VM:" << GETFLAGBOOL(VM) <<" FLG:" << setw(8) << reg_flags 
		    << " CR0:" << setw(8) << cpu.cr0;	
	}
	out << endl;
};
#endif

// DEBUG.COM stuff

class DEBUG : public Program {
public:
	DEBUG()		{ pDebugcom	= this;	active = false; };
	~DEBUG()	{ pDebugcom	= 0; };

	bool IsActive() { return active; };

	void Run(void)
	{
		char filename[128];
		char args[256];
		cmd->FindCommand(1,temp_line);
		safe_strncpy(filename,temp_line.c_str(),128);
		// Read commandline
		Bit16u i	=2;
		bool ok		= false; 
		args[0]		= 0;
		for (;cmd->FindCommand(i++,temp_line)==true;) {
			strncat(args,temp_line.c_str(),256);
			strncat(args," ",256);
		}
		// Start new shell and execute prog		
		active = true;
		// Save cpu state....
		Bit16u oldcs	= SegValue(cs);
		Bit32u oldeip	= reg_eip;	
		Bit16u oldss	= SegValue(ss);
		Bit32u oldesp	= reg_esp;

		// Workaround : Allocate Stack Space
		Bit16u segment;
		Bit16u size = 0x200 / 0x10;
		if (DOS_AllocateMemory(&segment,&size)) {
			SegSet16(ss,segment);
			reg_sp = 0x200;
			// Start shell
			DOS_Shell shell;
			shell.Execute(filename,args);
			DOS_FreeMemory(segment);
		}
		// set old reg values
		SegSet16(ss,oldss);
		reg_esp = oldesp;
		SegSet16(cs,oldcs);
		reg_eip = oldeip;
	};

private:
	bool	active;
};

void DEBUG_CheckExecuteBreakpoint(Bit16u seg, Bit32u off)
{
	if (pDebugcom && pDebugcom->IsActive()) {
		CBreakpoint::AddBreakpoint(seg,off,true);		
		CBreakpoint::ActivateBreakpoints(SegPhys(cs)+reg_eip,true);	
		pDebugcom = 0;
	};
};

Bitu DEBUG_EnableDebugger(void)
{
	exitLoop = true;
	DEBUG_Enable(true);
	CPU_Cycles=CPU_CycleLeft=0;
	return 0;
};

static void DEBUG_ProgramStart(Program * * make) {
	*make=new DEBUG;
}

// INIT 

void DEBUG_SetupConsole(void)
{
	#ifdef WIN32
	WIN32_Console();
	#else
	tcgetattr(0,&consolesettings);
	printf("\e[8;50;80t"); //resize terminal
	fflush(NULL);
	#endif	
	memset((void *)&dbg,0,sizeof(dbg));
	debugging=false;
	dbg.active_win=3;
	input_count=0;
	/* Start the Debug Gui */
	DBGUI_StartUp();
};

static void DEBUG_ShutDown(Section * sec) 
{
	CBreakpoint::DeleteAll();
	CDebugVar::DeleteAll();
	#ifndef WIN32
	curs_set(old_cursor_state);
	tcsetattr(0, TCSANOW,&consolesettings);
//	printf("\e[0m\e[2J"); //Seems to destroy scrolling
	printf("\ec");
	fflush(NULL);
	#endif
};

Bitu debugCallback;

void DEBUG_Init(Section* sec) {

	MSG_Add("DEBUG_CONFIGFILE_HELP","Debugger related options.\n");
	DEBUG_DrawScreen();
	/* Add some keyhandlers */
	MAPPER_AddHandler(DEBUG_Enable,MK_pause,MMOD2,"debugger","Debugger");
	/* Clear the TBreakpoint list */
	memset((void*)&codeViewData,0,sizeof(codeViewData));
	/* setup debug.com */
	PROGRAMS_MakeFile("DEBUG.COM",DEBUG_ProgramStart);
	/* Setup callback */
	debugCallback=CALLBACK_Allocate();
	CALLBACK_Setup(debugCallback,DEBUG_EnableDebugger,CB_RETF,"debugger");
	/* shutdown function */
	sec->AddDestroyFunction(&DEBUG_ShutDown);
}

// DEBUGGING VAR STUFF

void CDebugVar::InsertVariable(char* name, PhysPt adr)
{
	varList.push_back(new CDebugVar(name,adr));
};

void CDebugVar::DeleteAll(void) 
{
	std::list<CDebugVar*>::iterator i;
	CDebugVar* bp;
	for(i=varList.begin(); i != varList.end(); i++) {
		bp = static_cast<CDebugVar*>(*i);
		delete bp;
	};
	(varList.clear)();
};

CDebugVar* CDebugVar::FindVar(PhysPt pt)
{
	std::list<CDebugVar*>::iterator i;
	CDebugVar* bp;
	for(i=varList.begin(); i != varList.end(); i++) {
		bp = static_cast<CDebugVar*>(*i);
		if (bp->GetAdr()==pt) return bp;
	};
	return 0;
};

bool CDebugVar::SaveVars(char* name)
{
	FILE* f = fopen(name,"wb+");
	if (!f) return false;

	// write number of vars
	Bit16u num = varList.size();
	fwrite(&num,1,sizeof(num),f);

	std::list<CDebugVar*>::iterator i;
	CDebugVar* bp;
	for(i=varList.begin(); i != varList.end(); i++) {
		bp = static_cast<CDebugVar*>(*i);
		// name
		fwrite(bp->GetName(),1,16,f);
		// adr
		PhysPt adr = bp->GetAdr();
		fwrite(&adr,1,sizeof(adr),f);
	};
	fclose(f);
	return true;
};

bool CDebugVar::LoadVars(char* name)
{
	FILE* f = fopen(name,"rb");
	if (!f) return false;

	// read number of vars
	Bit16u num;
	fread(&num,1,sizeof(num),f);

	for (Bit16u i=0; i<num; i++) {
		char name[16];
		// name
		fread(name,1,16,f);
		// adr
		PhysPt adr;
		fread(&adr,1,sizeof(adr),f);
		// insert
		InsertVariable(name,adr);
	};
	fclose(f);
	return true;
};

static void SaveMemory(Bitu seg, Bitu ofs1, Bit32u num)
{
	FILE* f = fopen("MEMDUMP.TXT","wt");
	if (!f) {
		DEBUG_ShowMsg("DEBUG: Memory dump failed.\n");
		return;
	}
	
	char buffer[128];
	char temp[16];

	while(num>0) {

		sprintf(buffer,"%04X:%04X   ",seg,ofs1);
		for (Bit16u x=0; x<16; x++) {
			sprintf	(temp,"%02X ",mem_readb(GetAddress(seg,ofs1+x)));
			strcat	(buffer,temp);
		};
		ofs1+=16;
		num-=16;

		fprintf(f,"%s\n",buffer);
	};
	fclose(f);
	DEBUG_ShowMsg("DEBUG: Memory dump success.\n");
};

static void SaveMemoryBin(Bitu seg, Bitu ofs1, Bit32u num) {
	FILE* f = fopen("MEMDUMP.BIN","wb");
	if (!f) {
		DEBUG_ShowMsg("DEBUG: Memory binary dump failed.\n");
		return;
	}

	for(Bitu x = 0; x < num;x++) {
		Bit8u val = mem_readb(GetAddress(seg,ofs1+x));
		fwrite(&val,1,1,f);
	};

	fclose(f);
	DEBUG_ShowMsg("DEBUG: Memory dump binary success.\n");
};

static void OutputVecTable(char* filename)
{
	FILE* f = fopen(filename, "wt");
	if (!f)
	{
		DEBUG_ShowMsg("DEBUG: Output of interrupt vector table failed.\n");
		return;
	}

	for (int i=0; i<256; i++)
		fprintf(f,"INT %02X:  %04X:%04X\n", i, mem_readw(i*4+2), mem_readw(i*4));

	fclose(f);
	DEBUG_ShowMsg("DEBUG: Interrupt vector table written to %s.\n", filename);
}

#define DEBUG_VAR_BUF_LEN 16
static void DrawVariables(void)
{
	std::list<CDebugVar*>::iterator i;
	CDebugVar *dv;
	char buffer[DEBUG_VAR_BUF_LEN];

	int idx = 0;
	for(i=CDebugVar::varList.begin(); i != CDebugVar::varList.end(); i++, idx++) {

		if (idx == 4*3) {
			/* too many variables */
			break;
		}

		dv = static_cast<CDebugVar*>(*i);

		Bit16u value = mem_readw(dv->GetAdr());
		snprintf(buffer,DEBUG_VAR_BUF_LEN, "0x%04x", value);

		int y = idx / 3;
		int x = (idx % 3) * 26;
		mvwprintw(dbg.win_var, y, x, dv->GetName());
		mvwprintw(dbg.win_var, y,  (x + DEBUG_VAR_BUF_LEN + 1) , buffer);
	}

	wrefresh(dbg.win_var);
};
#undef DEBUG_VAR_BUF_LEN
// HEAVY DEBUGGING STUFF

#if C_HEAVY_DEBUG

const Bit32u LOGCPUMAX = 20000;

static Bit16u logCpuCS [LOGCPUMAX];
static Bit32u logCpuEIP[LOGCPUMAX];
static Bit32u logCount = 0;

struct TLogInst {
	Bit16u s_cs;
	Bit32u eip;
	Bit32u eax;
	Bit32u ebx;
	Bit32u ecx;
	Bit32u edx;
	Bit32u esi;
	Bit32u edi;
	Bit32u ebp;
	Bit32u esp;
	Bit16u s_ds;
	Bit16u s_es;
	Bit16u s_fs;
	Bit16u s_gs;
	Bit16u s_ss;
	bool c;
	bool z;
	bool s;
	bool o;
	bool a;
	bool p;
	bool i;
	char dline[31];
	char res[23];
};

TLogInst logInst[LOGCPUMAX];

void DEBUG_HeavyLogInstruction(void) {

	static char empty[23] = { 32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0 };

	PhysPt start = GetAddress(SegValue(cs),reg_eip);
	char dline[200];
	Bitu size = DasmI386(dline, start, reg_eip, cpu.code.big);
	char* res = empty;
	if (showExtend) {
		res = AnalyzeInstruction(dline,false);
		if (!res || !(*res)) res = empty;
		Bitu reslen = strlen(res);
		if (reslen<22) for (Bitu i=0; i<22-reslen; i++) res[reslen+i] = ' '; res[22] = 0;
	};

	Bitu len = strlen(dline);
	if (len < 30) for (Bitu i=0; i < 30-len; i++) dline[len+i] = ' ';
	dline[30] = 0;

	TLogInst & inst = logInst[logCount];
	strcpy(inst.dline,dline);
	inst.s_cs = SegValue(cs);
	inst.eip  = reg_eip;
	strcpy(inst.res,res);
	inst.eax  = reg_eax;
	inst.ebx  = reg_ebx;
	inst.ecx  = reg_ecx;
	inst.edx  = reg_edx;
	inst.esi  = reg_esi;
	inst.edi  = reg_edi;
	inst.ebp  = reg_ebp;
	inst.esp  = reg_esp;
	inst.s_ds = SegValue(ds);
	inst.s_es = SegValue(es);
	inst.s_fs = SegValue(fs);
	inst.s_gs = SegValue(gs);
	inst.s_ss = SegValue(ss);
	inst.c    = get_CF()>0;
	inst.z    = get_ZF()>0;
	inst.s    = get_SF()>0;
	inst.o    = get_OF()>0;
	inst.a    = get_AF()>0;
	inst.p    = get_PF()>0;
	inst.i    = GETFLAGBOOL(IF);

	if (++logCount >= LOGCPUMAX) logCount = 0;
};

void DEBUG_HeavyWriteLogInstruction(void) {
	if (!logHeavy) return;
	logHeavy = false;
	
	DEBUG_ShowMsg("DEBUG: Creating cpu log LOGCPU_INT_CD.TXT\n");

	ofstream out("LOGCPU_INT_CD.TXT");
	if (!out.is_open()) {
		DEBUG_ShowMsg("DEBUG: Failed.\n");	
		return;
	}
	out << hex << noshowbase << setfill('0') << uppercase;
	Bit32u startLog = logCount;
	do {
		// Write Intructions
		TLogInst & inst = logInst[startLog];
		out << setw(4) << inst.s_cs << ":" << setw(8) << inst.eip << "  " 
		    << inst.dline << "  " << inst.res << " EAX:" << setw(8)<< inst.eax
		    << " EBX:" << setw(8) << inst.ebx << " ECX:" << setw(8) << inst.ecx
		    << " EDX:" << setw(8) << inst.edx << " ESI:" << setw(8) << inst.esi
		    << " EDI:" << setw(8) << inst.edi << " EBP:" << setw(8) << inst.ebp
		    << " ESP:" << setw(8) << inst.esp << " DS:"  << setw(4) << inst.s_ds
		    << " ES:"  << setw(4) << inst.s_es<< " FS:"  << setw(4) << inst.s_fs
		    << " GS:"  << setw(4) << inst.s_gs<< " SS:"  << setw(4) << inst.s_ss
		    << " CF:"  << inst.c  << " ZF:"   << inst.z  << " SF:"  << inst.s
		    << " OF:"  << inst.o  << " AF:"   << inst.a  << " PF:"  << inst.p
		    << " IF:"  << inst.i  << endl;

/*		fprintf(f,"%04X:%08X   %s  %s  EAX:%08X EBX:%08X ECX:%08X EDX:%08X ESI:%08X EDI:%08X EBP:%08X ESP:%08X DS:%04X ES:%04X FS:%04X GS:%04X SS:%04X CF:%01X ZF:%01X SF:%01X OF:%01X AF:%01X PF:%01X IF:%01X\n",
			logInst[startLog].s_cs,logInst[startLog].eip,logInst[startLog].dline,logInst[startLog].res,logInst[startLog].eax,logInst[startLog].ebx,logInst[startLog].ecx,logInst[startLog].edx,logInst[startLog].esi,logInst[startLog].edi,logInst[startLog].ebp,logInst[startLog].esp,
		        logInst[startLog].s_ds,logInst[startLog].s_es,logInst[startLog].s_fs,logInst[startLog].s_gs,logInst[startLog].s_ss,
		        logInst[startLog].c,logInst[startLog].z,logInst[startLog].s,logInst[startLog].o,logInst[startLog].a,logInst[startLog].p,logInst[startLog].i);*/
		if (++startLog >= LOGCPUMAX) startLog = 0;
	} while (startLog != logCount);
	
	out.close();
	DEBUG_ShowMsg("DEBUG: Done.\n");	
};

bool DEBUG_HeavyIsBreakpoint(void) {
	static Bitu zero_count = 0;
	if (cpuLog) {
		if (cpuLogCounter>0) {
			LogInstruction(SegValue(cs),reg_eip,cpuLogFile);
			cpuLogCounter--;
		}
		if (cpuLogCounter<=0) {
			cpuLogFile.close();
			DEBUG_ShowMsg("DEBUG: cpu log LOGCPU.TXT created\n");
			cpuLog = false;
			DEBUG_EnableDebugger();
			return true;
		}
	}
	// LogInstruction
	if (logHeavy) DEBUG_HeavyLogInstruction();
	if(zeroProtect && mem_readd(SegPhys(cs) + reg_eip) == 0) zero_count++; else zero_count = 0;
	if(zeroProtect && GCC_UNLIKELY(zero_count == 10)) E_Exit("running zeroed code");

	if (skipFirstInstruction) {
		skipFirstInstruction = false;
		return false;
	}
	PhysPt where = SegPhys(cs)+reg_eip;
	if (CBreakpoint::CheckBreakpoint(SegValue(cs),reg_eip)) {
		return true;	
	}
	return false;
};
#endif // HEAVY DEBUG


#endif // DEBUG


