SID.cpp File Reference

#include "sysdeps.h"
#include <math.h>
#include "SID.h"
#include "Prefs.h"
#include "C64.h"
#include "VIC.h"
#include <mda/common/audio.h>
#include <mdaaudiooutputstream.h>
#include "FixPoint.i"
#include "sid_epoc32.i"

Include dependency graph for SID.cpp:

Go to the source code of this file.

Compounds
class	DigitalRenderer
struct	DRVoice
Defines
#define	USE_FIXPOINT_MATHS
#define	FIXPOINT_PREC   16
#define	PRECOMPUTE_RESONANCE
#define	ldSINTAB   9
#define	CALC_RESONANCE_LP(f)
#define	CALC_RESONANCE_HP(f)
Enumerations
enum	{   WAVE_NONE, WAVE_TRI, WAVE_SAW, WAVE_TRISAW,   WAVE_RECT, WAVE_TRIRECT, WAVE_SAWRECT, WAVE_TRISAWRECT,   WAVE_NOISE }
enum	{ EG_IDLE, EG_ATTACK, EG_DECAY, EG_RELEASE }
enum	{   FILT_NONE, FILT_LP, FILT_BP, FILT_LPBP,   FILT_HP, FILT_NOTCH, FILT_HPBP, FILT_ALL }
Variables
const uint32	SAMPLE_FREQ = 8000
const uint32	SID_FREQ = 985248
const uint32	CALC_FREQ = 50
const uint32	SID_CYCLES = SID_FREQ/SAMPLE_FREQ
const int	SAMPLE_BUF_SIZE = 0x138*2

---

Define Documentation

#define CALC_RESONANCE_HP (  f   )

Value: (366.374\ - 14.0052 * f\ + 0.603212 * f * f\ - 0.000880196 * f * f * f) Definition at line 101 of file SID.cpp. Referenced by DigitalRenderer::calc_filter(), and DigitalRenderer::DigitalRenderer().

#define CALC_RESONANCE_LP (  f   )

Value: (227.755\ - 1.7635 * f\ - 0.0176385 * f * f\ + 0.00333484 * f * f * f\ - 9.05683E-6 * f * f * f * f) Definition at line 95 of file SID.cpp. Referenced by DigitalRenderer::calc_filter(), and DigitalRenderer::DigitalRenderer().

#define FIXPOINT_PREC   16

Definition at line 71 of file SID.cpp. Referenced by DigitalRenderer::fixcos(), fixdiv(), fixmult(), DigitalRenderer::fixsin(), fixsqrt(), fixsquare(), intmult(), operator+(), FixPoint::operator+(), FixPoint::operator++(), FixPoint::operator+=(), operator-(), FixPoint::operator-(), FixPoint::operator--(), FixPoint::operator-=(), and FixPoint::round().

#define ldSINTAB   9

Definition at line 73 of file SID.cpp. Referenced by DigitalRenderer::fixcos(), DigitalRenderer::fixsin(), and DigitalRenderer::InitFixSinTab().

#define PRECOMPUTE_RESONANCE

Definition at line 72 of file SID.cpp.

#define USE_FIXPOINT_MATHS

Definition at line 70 of file SID.cpp.

---

Enumeration Type Documentation

anonymous enum

Enumeration values: WAVE_NONE  WAVE_TRI  WAVE_SAW  WAVE_TRISAW  WAVE_RECT  WAVE_TRIRECT  WAVE_SAWRECT  WAVE_TRISAWRECT  WAVE_NOISE  Definition at line 291 of file SID.cpp.

anonymous enum

Enumeration values: EG_IDLE  EG_ATTACK  EG_DECAY  EG_RELEASE  Definition at line 304 of file SID.cpp.

anonymous enum

Enumeration values: FILT_NONE  FILT_LP  FILT_BP  FILT_LPBP  FILT_HP  FILT_NOTCH  FILT_HPBP  FILT_ALL  Definition at line 312 of file SID.cpp.

---

Variable Documentation

const uint32 CALC_FREQ = 50

Definition at line 286 of file SID.cpp.

const int SAMPLE_BUF_SIZE = 0x138*2

Definition at line 288 of file SID.cpp. Referenced by DigitalRenderer::calc_buffer(), DigitalRenderer::EmulateLine(), and DigitalRenderer::Reset().

const uint32 SAMPLE_FREQ = 8000

Renderer for digital SID emulation (SIDTYPE_DIGITAL) Definition at line 279 of file SID.cpp. Referenced by DigitalRenderer::calc_buffer(), DigitalRenderer::calc_filter(), DigitalRenderer::DigitalRenderer(), DigitalRenderer::init_sound(), and DigitalRenderer::WriteRegister().

const uint32 SID_CYCLES = SID_FREQ/SAMPLE_FREQ

Definition at line 287 of file SID.cpp.

const uint32 SID_FREQ = 985248

Definition at line 285 of file SID.cpp. Referenced by DigitalRenderer::DigitalRenderer(), and DigitalRenderer::WriteRegister().

---