cMapReg Class Reference

#include <nagra2.h>

List of all members.

Public Member Functions
	cMapReg (int &_pos, int *_defwordsize=0, int _maxwordsize=DEF_MAXWORDSIZE)
	operator BIGNUM * ()
BIGNUM *	operator-> ()
BIGNUM *	Value (int wsize=0, bool mask=false)
void	Commit (int wsize=-1, int resync=-1)
void	Reload (int wsize=0)
void	GetLE (const unsigned char *in, int n=0)
void	PutLE (unsigned char *out, int n=0)
void	Set (BIGNUM *val, int wsize)
void	Clear (int wsize)
void	SetPos (int _pos)
Protected Member Functions
void	SetMaxWordSize (int max)
void	SetDefWordSize (int *_defwordsize)

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Detailed Description

Definition at line 56 of file nagra2.h.

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Constructor & Destructor Documentation

cMapReg::cMapReg	(	int &	_pos,
		int *	_defwordsize = 0,
		int	_maxwordsize = DEF_MAXWORDSIZE
	)

Definition at line 356 of file nagra2.c.

References DEF_WORDSIZE, SetDefWordSize(), and SetMaxWordSize().

:pos(_pos)
{
  SetDefWordSize(_defwordsize);
  SetMaxWordSize(_maxwordsize);
  wordsize=DEF_WORDSIZE;
}

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Member Function Documentation

void cMapReg::Clear

(

int

wsize

)

Definition at line 458 of file nagra2.c.

References Commit().

{
  wsize=OpWordSize(wsize);
  if(wordsize!=wsize) {
    Commit();
    ClearFullReg(wsize);
    }
  ClearReg(wsize);
}

void cMapReg::Commit	(	int	wsize = -1,
		int	resync = -1
	)

Definition at line 400 of file nagra2.c.

Referenced by Clear(), GetLE(), cMap0101::Map(), PutLE(), Set(), and Value().

{
  if(resync<0 && wsize<0) resync=1;
  wsize=OpWordSize(wsize>=0?wsize:wordsize);
  ClearFullReg(wsize);
  PrepTmp(reg,wsize);
  BN_add(fullreg,fullreg,tmp);
  if(resync) {
    if(wordsize==wsize) BN_mask_bits(reg,wsize*64);
    else wordsize=wsize;
    }
}

void cMapReg::GetLE	(	const unsigned char *	in,
		int	n = 0
	)

Definition at line 421 of file nagra2.c.

References Commit(), and cBN::GetLE().

Referenced by cMap4101::Map(), cMap0501::Map(), and cMap0101::Map().

{
  int wsize=OpWordSize(n<=0?n:(n+7)/8);
  if(wordsize>wsize) Commit();
  reg.GetLE(in,wsize*8);
  Commit(wsize);
  pos=0;
}

cMapReg::operator BIGNUM *

(

)

[inline]

Definition at line 72 of file nagra2.h.

References Value().

{ return Value(); }

BIGNUM* cMapReg::operator->

(

)

[inline]

Definition at line 73 of file nagra2.h.

References Value().

{ return Value(); }

void cMapReg::PutLE	(	unsigned char *	out,
		int	n = 0
	)

Definition at line 430 of file nagra2.c.

References Commit(), i, and cBN::PutLE().

Referenced by cMap0101::Map().

{
  int wsize=OpWordSize(n<=0?n:(n+7)/8);
  Commit();
  fullreg.PutLE(out,wsize*8);
  if(pos&7) {
    int s=pos/8*8;
    for(int i=0; i<(pos&7); i++) {
      unsigned char c=out[s];
      memmove(out+s,out+s+1,7);
      out[s+7]=c;
      }
    }
}

void cMapReg::Reload

(

int

wsize = 0

)

Definition at line 413 of file nagra2.c.

Referenced by Value().

{
  wsize=OpWordSize(wsize>=0?wsize:wordsize);
  wordsize=wsize;
  BN_copy(reg,fullreg);
  BN_mask_bits(reg,64*wsize);
}

void cMapReg::Set	(	BIGNUM *	val,
		int	wsize
	)

Definition at line 445 of file nagra2.c.

References Commit().

{
  wsize=OpWordSize(wsize);
  if(wordsize!=wsize) Commit();
  ClearReg(wsize);
  PrepTmp(val,wsize);
  if(wordsize!=wsize) {
    ClearFullReg(wsize);
    BN_add(fullreg,fullreg,tmp);
    }
  BN_add(reg,reg,tmp);
}

void cMapReg::SetDefWordSize

(

int *

_defwordsize

)

[inline, protected]

Definition at line 69 of file nagra2.h.

Referenced by cMapReg().

{ defwordsize=_defwordsize; }

void cMapReg::SetMaxWordSize

(

int

max

)

[inline, protected]

Definition at line 68 of file nagra2.h.

References max().

Referenced by cMapReg().

{ maxwordsize=max; }

void cMapReg::SetPos

(

int

_pos

)

[inline]

Definition at line 81 of file nagra2.h.

Referenced by cMapCore::IMonInit0(), and cMap0101::Map().

{ pos=_pos; }

BIGNUM * cMapReg::Value	(	int	wsize = 0,
		bool	mask = false
	)

Definition at line 364 of file nagra2.c.

References Commit(), and Reload().

Referenced by operator BIGNUM *(), and operator->().

{
  wsize=OpWordSize(wsize);
  if(wordsize!=wsize) {
    Commit();
    Reload();
    }
  else if(mask)
    BN_mask_bits(reg,wsize*64);
  return reg;
}

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

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