reSIDfp::Filter Class Reference

#include <Filter.h>

Inheritance diagram for reSIDfp::Filter:

Public Member Functions
virtual int	clock (int v1, int v2, int v3)=0
void	enable (bool enable)
void	setClockFrequency (double clock)
void	reset ()
void	writeFC_LO (unsigned char fc_lo)
void	writeFC_HI (unsigned char fc_hi)
void	writeRES_FILT (unsigned char res_filt)
void	writeMODE_VOL (unsigned char mode_vol)
virtual void	input (int input)=0

Protected Member Functions
virtual void	updatedCenterFrequency ()=0
virtual void	updatedResonance ()=0
virtual void	updatedMixing ()=0

Protected Attributes
double	clockFrequency
int	fc
int	res
int	vol
bool	filt1
bool	filt2
bool	filt3
bool	filtE
bool	voice3off
bool	hp
bool	bp
bool	lp

Detailed Description

SID filter base class

Author

Ken Händel

Dag Lem

Antti Lankila

Leandro Nini

Member Function Documentation

virtual int reSIDfp::Filter::clock ( int  v1, int  v2, int  v3  )

pure virtual

SID clocking - 1 cycle

Parameters

v1	voice 1 in
v2	voice 2 in
v3	voice 3 in

Returns

filtered output

Implemented in reSIDfp::Filter6581, and reSIDfp::Filter8580.

void reSIDfp::Filter::enable

(

bool

enable

)

Enable filter.

Parameters

enable

void reSIDfp::Filter::reset

(

)

SID reset.

virtual void reSIDfp::Filter::updatedCenterFrequency ( )

protectedpure virtual

Set filter cutoff frequency.

Implemented in reSIDfp::Filter6581, and reSIDfp::Filter8580.

virtual void reSIDfp::Filter::updatedMixing ( )

protectedpure virtual

Mixing configuration modified (offsets change)

Implemented in reSIDfp::Filter6581, and reSIDfp::Filter8580.

virtual void reSIDfp::Filter::updatedResonance ( )

protectedpure virtual

Set filter resonance.

Implemented in reSIDfp::Filter6581, and reSIDfp::Filter8580.

void reSIDfp::Filter::writeFC_HI

(

unsigned char

fc_hi

)

Register function.

Parameters

fc_hi

Frequency Cutoff High-Byte

void reSIDfp::Filter::writeFC_LO

(

unsigned char

fc_lo

)

Register function.

Parameters

fc_lo

Frequency Cutoff Low-Byte

void reSIDfp::Filter::writeMODE_VOL

(

unsigned char

mode_vol

)

Register function.

Parameters

mode_vol

Filter Mode/Volume

void reSIDfp::Filter::writeRES_FILT

(

unsigned char

res_filt

)

Register function.

Parameters

res_filt

Resonance/Filter

Member Data Documentation

double reSIDfp::Filter::clockFrequency

protected

Current clock frequency.

int reSIDfp::Filter::fc

protected

Filter cutoff frequency.

bool reSIDfp::Filter::filt1

protected

Routing to filter or outside filter

bool reSIDfp::Filter::hp

protected

Highpass, bandpass, and lowpass filter modes.

int reSIDfp::Filter::res

protected

Filter resonance.

bool reSIDfp::Filter::voice3off

protected

Switch voice 3 off.

int reSIDfp::Filter::vol

protected

Current volume.

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

• Filter.h
• Filter.cpp