cN2Prov0501 Class Reference

Inheritance diagram for cN2Prov0501:

List of all members.

Public Member Functions
	cN2Prov0501 (int Id, int Flags)
virtual int	ProcessBx (unsigned char *data, int len, int pos)
virtual int	RunEmu (unsigned char *data, int len, unsigned short load, unsigned short run, unsigned short stop, unsigned short fetch, int fetch_len)
virtual void	PostDecrypt (bool ecm)
Protected Member Functions
virtual bool	Algo (int algo, const unsigned char *hd, unsigned char *hw)
virtual bool	NeedsCwSwap (void)
virtual bool	RomInit (void)
virtual void	TimerHandler (unsigned int num)
virtual void	AddMapCycles (unsigned int num)
virtual unsigned int	CpuCycles (void)

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Detailed Description

Definition at line 49 of file nagra2-0501.c.

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Constructor & Destructor Documentation

cN2Prov0501::cN2Prov0501	(	int	Id,
		int	Flags
	)

Definition at line 73 of file nagra2-0501.c.

References cMapCore::SetMapIdent().

:cN2Prov(Id,Flags)
{
  hwMapper=0; hasMaprom=false;
  SetMapIdent(Id);
}

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Member Function Documentation

virtual void cN2Prov0501::AddMapCycles

(

unsigned int

num

)

[inline, protected, virtual]

Reimplemented from cMapCore.

Definition at line 62 of file nagra2-0501.c.

References c6805::AddCycles().

{ AddCycles(num); }

bool cN2Prov0501::Algo	(	int	algo,
		const unsigned char *	hd,
		unsigned char *	hw
	)		[protected, virtual]

Reimplemented from cN2Prov.

Definition at line 80 of file nagra2-0501.c.

References cMapCore::DoMap(), cN2Prov::ExpandInput(), EXPORT_B, EXPORT_C, IMPORT_A, IMPORT_B, IMPORT_D, IMPORT_J, L_SYS_ECM, PRINTF, and SETSIZE.

{
  if(algo==0x60) {
    hw[0]=hd[0];
    hw[1]=hd[1];
    hw[2]=hd[2]&0xF8;
    ExpandInput(hw);
    hw[63]|=0x80;
    hw[95]=hw[127]=hw[95]&0x7F;
    DoMap(SETSIZE,0,4);
    DoMap(IMPORT_J,hw+0x18);
    DoMap(IMPORT_D,hw+0x20);
    DoMap(IMPORT_B,hw+0x60);
    DoMap(0x37,hw+0x40);
    DoMap(EXPORT_C,hw);
    DoMap(IMPORT_A,hw+0x60);
    DoMap(0x3a);
    DoMap(EXPORT_C,hw+0x20);
    DoMap(0x43);
    DoMap(0x44,hw);
    memcpy(hw,hw+64,20);
    hw[0]&=7;
    DoMap(EXPORT_B,hw+3);
    memset(hw+3+0x20,0,128-(3+0x20));
    return true;
    }

  PRINTF(L_SYS_ECM,"%04X: unknown MECM algo %02x",id,algo);
  return false;
}

virtual unsigned int cN2Prov0501::CpuCycles

(

void

)

[inline, protected, virtual]

Reimplemented from cMapCore.

Definition at line 63 of file nagra2-0501.c.

References c6805::Cycles().

{ return Cycles(); }

virtual bool cN2Prov0501::NeedsCwSwap

(

void

)

[inline, protected, virtual]

Reimplemented from cN2Prov.

Definition at line 59 of file nagra2-0501.c.

{ return true; }

virtual void cN2Prov0501::PostDecrypt

(

bool

ecm

)

[inline, virtual]

Reimplemented from cN2Prov.

Definition at line 68 of file nagra2-0501.c.

References cMapCore::PostDecryptSetup().

{ PostDecryptSetup(ecm); }

int cN2Prov0501::ProcessBx	(	unsigned char *	data,
		int	len,
		int	pos
	)		[virtual]

Reimplemented from cN2Prov.

Definition at line 215 of file nagra2-0501.c.

References c6805::a, c6805::AddBreakpoint(), c6805::ClearBreakpoints(), c6805::GetMem(), c6805::GetPc(), cN2Emu::Init(), L_SYS_EMU, PRINTF, c6805::Run(), c6805::Set(), c6805::SetMem(), c6805::SetPc(), and c6805::SetSp().

{
  if(data[pos-1]!=0xBC) {
    PRINTF(L_SYS_EMU,"%04X: bad nano %02X for ROM 120",id,data[pos-1]);
    return -1;
    }
  if(pos!=(0x93-0x80)) { // maybe exploitable
    PRINTF(L_SYS_EMU,"%04X: refuse to execute from %04x",id,0x80+pos);
    return -1;
    }
  if(Init(id,120)) {
    SetMem(0x80,data,len);
    SetPc(0x80+pos);
    SetSp(0x0FFF,0x0FE0);
    Set(0x0001,0xFF);
    Set(0x000E,0xFF);
    Set(0x0000,0x04);
    ClearBreakpoints();
    AddBreakpoint(0x821f);
    AddBreakpoint(0x0000);
    AddRomCallbacks();
    while(!Run(hasMaprom ? 20000:5000)) {
      if(GetPc()==0x821f) {
        GetMem(0x80,data,len);
        return a;
        }
      else if(GetPc()==0x0000) break;
      else if(!RomCallbacks()) break;
      }
    }
  return -1;
}

bool cN2Prov0501::RomInit

(

void

)

[protected, virtual]

Reimplemented from cN2Emu.

Definition at line 111 of file nagra2-0501.c.

References c6805::AddMapper(), HW_OFFSET, HW_REGS, L_SYS_EMU, and PRINTF.

{
  if(!AddMapper(hwMapper=new cMapMemHW(),HW_OFFSET,HW_REGS,0x00)) return false;
  if(   AddMapper(new cMapRom(0x3800,"Rom120_003800-003FFF.bin",0x00000),0x3800,0x0800,0x00)
     && AddMapper(new cMapRom(0x8000,"Rom120_408000-40CFFF.bin",0x00000),0x8000,0x5000,0x40)) {
    hasMaprom=true;
    PRINTF(L_SYS_EMU,"%04x: using native MAP rom",id);
    }
  return true;
}

int cN2Prov0501::RunEmu	(	unsigned char *	data,
		int	len,
		unsigned short	load,
		unsigned short	run,
		unsigned short	stop,
		unsigned short	fetch,
		int	fetch_len
	)		[virtual]

Reimplemented from cN2Prov.

Definition at line 248 of file nagra2-0501.c.

References c6805::AddBreakpoint(), c6805::ClearBreakpoints(), c6805::GetMem(), c6805::GetPc(), cN2Emu::Init(), c6805::Run(), c6805::SetMem(), c6805::SetPc(), and c6805::SetSp().

{
  if(Init(id,120)) {
    SetSp(0x0FFF,0x0EF8);
    SetMem(load,data,len);
    SetPc(run);
    ClearBreakpoints();
    AddBreakpoint(stop);
    if(stop!=0x0000) AddBreakpoint(0x0000);
    AddRomCallbacks();
    while(!Run(100000)) {
      if(GetPc()==0x0000 || GetPc()==stop) {
        GetMem(fetch,data,fetch_len);
        return 1;
        }
      else if(!RomCallbacks()) break;
      }
    }
  return -1;
}

void cN2Prov0501::TimerHandler

(

unsigned int

num

)

[protected, virtual]

Reimplemented from c6805.

Definition at line 269 of file nagra2-0501.c.

References cMapMemHW::AddCycles().

{
  if(hwMapper) hwMapper->AddCycles(num);
}

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The documentation for this class was generated from the following file:

• sc/PLUGINS/src/sc-src/systems/nagra/nagra2-0501.c