/* * Copyright (C) 2002-2010 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 1.97 2009-04-11 19:49:52 c2woody Exp $ */ #include "dosbox.h" #if C_DEBUG #include #include #include #include #include #include #include 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" #include "setup.h" #ifdef WIN32 void WIN32_Console(); #else #include #include static struct termios consolesettings; #endif int old_cursor_state; // 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 LogMCBS(void); 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); #if 0 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*/) { } }; #endif 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; 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);} } } #define MAXCMDLEN 254 struct SCodeViewData { int cursorPos; Bit16u firstInstSize; Bit16u useCS; Bit32u useEIPlast, useEIPmid; Bit32u useEIP; Bit16u cursorSeg; Bit32u cursorOfs; bool ovrMode; char inputStr[MAXCMDLEN+1]; char suspInputStr[MAXCMDLEN+1]; int inputPos; } codeViewData; static Bit16u dataSeg; static Bit32u dataOfs; static bool showExtend = true; static void ClearInputLine(void) { codeViewData.inputStr[0] = 0; codeViewData.inputPos = 0; } // History stuff #define MAX_HIST_BUFFER 50 static list histBuff; static list::iterator histBuffPos = histBuff.end(); /***********/ /* 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; } static char empty_sel[] = { ' ',' ',0 }; 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=empty_sel; } 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 varList; }; std::list 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 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::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::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::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=0; if (mem_readb_checked(address,&value)) return false; 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::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::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::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::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::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::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::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()); } 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()); } else if (bp->GetType()==BKPNT_MEMORY) { DEBUG_ShowMsg("%02X. BPMEM %04X:%04X (%02X)\n",nr,bp->GetSegment(),bp->GetOffset(),bp->GetValue()); } else if (bp->GetType()==BKPNT_MEMORY_PROT) { DEBUG_ShowMsg("%02X. BPPM %04X:%08X (%02X)\n",nr,bp->GetSegment(),bp->GetOffset(),bp->GetValue()); } else if (bp->GetType()==BKPNT_MEMORY_LINEAR ) { DEBUG_ShowMsg("%02X. BPLM %08X (%02X)\n",nr,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 (mem_readb_checked(address,&ch)) ch=0; mvwprintw (dbg.win_data,1+y,14+3*x,"%02X",ch); if (ch<32 || !isprint(*reinterpret_cast(&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 } if (i == codeViewData.cursorPos) { 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 %s%c", (codeViewData.ovrMode?'O':'I'),dispPtr,(*curPtr?' ':'_')); wclrtoeol(dbg.win_code); // not correct in pdcurses if full line if (*curPtr) { mvwchgat(dbg.win_code,10,(curPtr-dispPtr+4),1,0,(PAIR_BLACK_GREY),NULL); } } 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(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::LoadVars(name)?"ok":"failure")); return true; }; if (command == "SR") { // Set register value DEBUG_ShowMsg("DEBUG: Set Register %s.\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_checked(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 DEBUG_ShowMsg("DEBUG: Breakpoint deletion %s.\n",(CBreakpoint::DeleteByIndex(bpNr)?"success":"failure")); } 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; codeViewData.cursorPos = 0; 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); return true; }; if (command == "DOS") { stream >> command; if (command == "MCBS") LogMCBS(); return true; } 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); codeViewData.cursorPos = 0; 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("F3/F6 - Previous command in history.\n"); DEBUG_ShowMsg("F4/F7 - Next command in history.\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("Home/End - Scroll log messages.\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("DOS MCBS - Show Memory Control Block chain.\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 log 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 (!(get_tlb_readhandler(address)->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) { 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 PADENTER: key=0x0A; break; case PADSLASH: key='/'; break; case PADSTAR: key='*'; break; case PADMINUS: key='-'; break; case PADPLUS: key='+'; break; 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 ClearInputLine(); 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_IC: // Insert: toggle insert/overwrite codeViewData.ovrMode = !codeViewData.ovrMode; break; case KEY_LEFT: // move to the left in command line if (codeViewData.inputPos > 0) codeViewData.inputPos--; break; case KEY_RIGHT: // move to the right in command line if (codeViewData.inputStr[codeViewData.inputPos]) codeViewData.inputPos++; break; case KEY_F(6): // previous command (f1-f4 generate rubbish at my place) case KEY_F(3): // previous command if (histBuffPos == histBuff.begin()) break; if (histBuffPos == histBuff.end()) { // copy inputStr to suspInputStr so we can restore it safe_strncpy(codeViewData.suspInputStr, codeViewData.inputStr, sizeof(codeViewData.suspInputStr)); } safe_strncpy(codeViewData.inputStr,(*--histBuffPos).c_str(),sizeof(codeViewData.inputStr)); codeViewData.inputPos = strlen(codeViewData.inputStr); break; case KEY_F(7): // next command (f1-f4 generate rubbish at my place) case KEY_F(4): // next command if (histBuffPos == histBuff.end()) break; if (++histBuffPos != histBuff.end()) { safe_strncpy(codeViewData.inputStr,(*histBuffPos).c_str(),sizeof(codeViewData.inputStr)); } else { // copy suspInputStr back into inputStr safe_strncpy(codeViewData.inputStr, codeViewData.suspInputStr, sizeof(codeViewData.inputStr)); } codeViewData.inputPos = strlen(codeViewData.inputStr); break; case KEY_F(5): // Run Program debugging=false; CBreakpoint::ActivateBreakpoints(SegPhys(cs)+reg_eip,true); ignoreAddressOnce = SegPhys(cs)+reg_eip; DOSBOX_SetNormalLoop(); break; case KEY_F(9): // Set/Remove Breakpoint { PhysPt ptr = GetAddress(codeViewData.cursorSeg,codeViewData.cursorOfs); if (CBreakpoint::IsBreakpoint(ptr)) { CBreakpoint::DeleteBreakpoint(ptr); DEBUG_ShowMsg("DEBUG: Breakpoint deletion success.\n"); } else { CBreakpoint::AddBreakpoint(codeViewData.cursorSeg, codeViewData.cursorOfs, false); DEBUG_ShowMsg("DEBUG: Set breakpoint at %04X:%04X\n",codeViewData.cursorSeg,codeViewData.cursorOfs); } } 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.inputStr[MAXCMDLEN] = '\0'; if(ParseCommand(codeViewData.inputStr)) { char* cmd = ltrim(codeViewData.inputStr); if (histBuff.empty() || *--histBuff.end()!=cmd) histBuff.push_back(cmd); if (histBuff.size() > MAX_HIST_BUFFER) histBuff.pop_front(); histBuffPos = histBuff.end(); ClearInputLine(); } else { codeViewData.inputPos = strlen(codeViewData.inputStr); } break; case KEY_BACKSPACE: //backspace (linux) case 0x7f: // backspace in some terminal emulators (linux) case 0x08: // delete if (codeViewData.inputPos == 0) break; codeViewData.inputPos--; // fallthrough case KEY_DC: // delete character if ((codeViewData.inputPos<0) || (codeViewData.inputPos>=MAXCMDLEN)) break; if (codeViewData.inputStr[codeViewData.inputPos] != 0) { codeViewData.inputStr[MAXCMDLEN] = '\0'; for(char* p=&codeViewData.inputStr[codeViewData.inputPos];(*p=*(p+1));p++) {} } break; default: if ((key>=32) && (key<127)) { if ((codeViewData.inputPos<0) || (codeViewData.inputPos>=MAXCMDLEN)) break; codeViewData.inputStr[MAXCMDLEN] = '\0'; if (codeViewData.inputStr[codeViewData.inputPos] == 0) { codeViewData.inputStr[codeViewData.inputPos++] = char(key); codeViewData.inputStr[codeViewData.inputPos] = '\0'; } else if (!codeViewData.ovrMode) { int len = (int) strlen(codeViewData.inputStr); if (len < MAXCMDLEN) { for(len++;len>codeViewData.inputPos;len--) codeViewData.inputStr[len]=codeViewData.inputStr[len-1]; codeViewData.inputStr[codeViewData.inputPos++] = char(key); } } else { codeViewData.inputStr[codeViewData.inputPos++] = char(key); } } else if (key==killchar()) { ClearInputLine(); } 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); } // Display the content of the MCB chain starting with the MCB at the specified segment. static void LogMCBChain(Bit16u mcb_segment) { DOS_MCB mcb(mcb_segment); char filename[9]; // 8 characters plus a terminating NUL const char *psp_seg_note; PhysPt dataAddr = PhysMake(dataSeg,dataOfs);// location being viewed in the "Data Overview" // loop forever, breaking out of the loop once we've processed the last MCB while (true) { // verify that the type field is valid if (mcb.GetType()!=0x4d && mcb.GetType()!=0x5a) { LOG(LOG_MISC,LOG_ERROR)("MCB chain broken at %04X:0000!",mcb_segment); return; } mcb.GetFileName(filename); // some PSP segment values have special meanings switch (mcb.GetPSPSeg()) { case MCB_FREE: psp_seg_note = "(free)"; break; case MCB_DOS: psp_seg_note = "(DOS)"; break; default: psp_seg_note = ""; } LOG(LOG_MISC,LOG_ERROR)(" %04X %12u %04X %-7s %s",mcb_segment,mcb.GetSize() << 4,mcb.GetPSPSeg(), psp_seg_note, filename); // print a message if dataAddr is within this MCB's memory range PhysPt mcbStartAddr = PhysMake(mcb_segment+1,0); PhysPt mcbEndAddr = PhysMake(mcb_segment+1+mcb.GetSize(),0); if (dataAddr >= mcbStartAddr && dataAddr < mcbEndAddr) { LOG(LOG_MISC,LOG_ERROR)(" (data addr %04hX:%04X is %u bytes past this MCB)",dataSeg,dataOfs,dataAddr - mcbStartAddr); } // if we've just processed the last MCB in the chain, break out of the loop if (mcb.GetType()==0x5a) { break; } // else, move to the next MCB in the chain mcb_segment+=mcb.GetSize()+1; mcb.SetPt(mcb_segment); } } // Display the content of all Memory Control Blocks. static void LogMCBS(void) { LOG(LOG_MISC,LOG_ERROR)("MCB Seg Size (bytes) PSP Seg (notes) Filename"); LOG(LOG_MISC,LOG_ERROR)("Conventional memory:"); LogMCBChain(dos.firstMCB); LOG(LOG_MISC,LOG_ERROR)("Upper memory:"); LogMCBChain(dos_infoblock.GetStartOfUMBChain()); } 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> 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 [d=%x|a=%x]", i,entry.block.base,entry.block.us,table.block.us, entry.block.wr,table.block.wr,entry.block.d,entry.block.a); 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; if (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(); if (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; i0) << " Z" << (get_ZF()>0) << " S" << (get_SF()>0) << " O" << (get_OF()>0) << " I" << GETFLAGBOOL(IF); } else { out << " FS:" << setw(4) << SegValue(fs) << " GS:" << setw(4) << SegValue(gs) << " SS:" << setw(4) << SegValue(ss) << " CF:" << (get_CF()>0) << " ZF:" << (get_ZF()>0) << " SF:" << (get_SF()>0) << " OF:" << (get_OF()>0) << " AF:" << (get_AF()>0) << " PF:" << (get_PF()>0) << " 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) { if(cmd->FindExist("/NOMOUSE",false)) { real_writed(0,0x33<<2,0); return; } char filename[128]; char args[256]; cmd->FindCommand(1,temp_line); safe_strncpy(filename,temp_line.c_str(),128); // Read commandline Bit16u i =2; 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; /* Start the Debug Gui */ DBGUI_StartUp(); } static void DEBUG_ShutDown(Section * /*sec*/) { CBreakpoint::DeleteAll(); CDebugVar::DeleteAll(); curs_set(old_cursor_state); endwin(); #ifndef WIN32 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"); /* Reset code overview and input line */ 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::iterator i; CDebugVar* bp; for(i=varList.begin(); i != varList.end(); i++) { bp = static_cast(*i); delete bp; }; (varList.clear)(); }; CDebugVar* CDebugVar::FindVar(PhysPt pt) { std::list::iterator i; CDebugVar* bp; for(i=varList.begin(); i != varList.end(); i++) { bp = static_cast(*i); if (bp->GetAdr()==pt) return bp; }; return 0; }; bool CDebugVar::SaveVars(char* name) { FILE* f = fopen(name,"wb+"); if (!f) return false; if (varList.size()>65535) return false; // write number of vars Bit16u num = (Bit16u)varList.size(); fwrite(&num,1,sizeof(num),f); std::list::iterator i; CDebugVar* bp; for(i=varList.begin(); i != varList.end(); i++) { bp = static_cast(*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; i16) { sprintf(buffer,"%04X:%04X ",seg,ofs1); for (Bit16u x=0; x<16; x++) { Bit8u value; if (mem_readb_checked(GetAddress(seg,ofs1+x),&value)) sprintf(temp,"%s","?? "); else sprintf(temp,"%02X ",value); strcat(buffer,temp); } ofs1+=16; num-=16; fprintf(f,"%s\n",buffer); } if (num>0) { sprintf(buffer,"%04X:%04X ",seg,ofs1); for (Bit16u x=0; x::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(*i); Bit16u value; if (mem_readw_checked(dv->GetAdr(),&value)) snprintf(buffer,DEBUG_VAR_BUF_LEN, "%s", "??????"); else 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 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]; 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) { Bit32u value=0; if (!mem_readd_checked(SegPhys(cs)+reg_eip,&value)) { if (value == 0) zero_count++; else zero_count = 0; } if (GCC_UNLIKELY(zero_count == 10)) E_Exit("running zeroed code"); } if (skipFirstInstruction) { skipFirstInstruction = false; return false; } if (CBreakpoint::CheckBreakpoint(SegValue(cs),reg_eip)) { return true; } return false; } #endif // HEAVY DEBUG #endif // DEBUG