Spc_Dsp.cpp File Reference

#include "Spc_Dsp.h"
#include "blargg_endian.h"
#include <string.h>
#include "blargg_source.h"

Macros
#define	GET_LE16SA(addr)
#define	GET_LE16A(addr)
#define	SET_LE16A(addr, data)
#define	CLAMP16(io)
#define	REG(n)
#define	VREG(r, n)
#define	WRITE_SAMPLES(l, r, out)
#define	RATE(rate, div)
#define	READ_COUNTER(rate)
#define	SAMPLE_PTR(i)
#define	CALC_FIR_(i, in)
#define	CALC_FIR(i, ch)
#define	DO_FIR(i)

Variables
static uint8_t const	initial_regs [Spc_Dsp::register_count]
static short const	interleved_gauss [512]
static unsigned const	counter_mask [32]

Macro Definition Documentation

CALC_FIR

#define CALC_FIR	(		i,
			ch )

Value:

CALC_FIR_( i, echo_hist_pos [i + 1] [ch] )

CALC_FIR_

#define CALC_FIR_	(		i,
			in )

Value:

((in) * (int8_t) REG(fir + i * 0x10))

CLAMP16

#define CLAMP16

(

io

)

Value:

{\
        if ( (int16_t) io != io )\
                io = (io >> 31) ^ 0x7FFF;\
}

DO_FIR

#define DO_FIR

(

i

)

Value:

echo_in_l += CALC_FIR( i, 0 );\
echo_in_r += CALC_FIR( i, 1 );

GET_LE16A

#define GET_LE16A

(

addr

)

Value:

GET_LE16( addr )

GET_LE16SA

#define GET_LE16SA

(

addr

)

Value:

((int16_t) GET_LE16( addr ))

RATE

#define RATE	(		rate,
			div )

Value:

(rate >= div ? rate / div * 8 - 1 : rate - 1)

READ_COUNTER

#define READ_COUNTER

(

rate

)

Value:

(*m.counter_select [rate] & counter_mask [rate])

REG

#define REG

(

n

)

Value:

m.regs [r_##n]

SAMPLE_PTR

#define SAMPLE_PTR

(

i

)

Value:

GET_LE16A( &dir [VREG(v_regs,srcn) * 4 + i * 2] )

SET_LE16A

#define SET_LE16A	(		addr,
			data )

Value:

SET_LE16( addr, data )

VREG

#define VREG	(		r,
			n )

Value:

r [v_##n]

WRITE_SAMPLES

#define WRITE_SAMPLES	(		l,
			r,
			out )

Value:

{\
        out [0] = l;\
        out [1] = r;\
        out += 2;\
        if ( out >= m.out_end )\
        {\
                check( out == m.out_end );\
                check( m.out_end != &m.extra [extra_size] || \
                        (m.extra <= m.out_begin && m.extra < &m.extra [extra_size]) );\
                out       = m.extra;\
                m.out_end = &m.extra [extra_size];\
        }\
}\

Variable Documentation

counter_mask

unsigned const counter_mask[32]

static

Initial value:

                                    =
{
        RATE(   2,2), RATE(2048,4), RATE(1536,3),
        RATE(1280,5), RATE(1024,4), RATE( 768,3),
        RATE( 640,5), RATE( 512,4), RATE( 384,3),
        RATE( 320,5), RATE( 256,4), RATE( 192,3),
        RATE( 160,5), RATE( 128,4), RATE(  96,3),
        RATE(  80,5), RATE(  64,4), RATE(  48,3),
        RATE(  40,5), RATE(  32,4), RATE(  24,3),
        RATE(  20,5), RATE(  16,4), RATE(  12,3),
        RATE(  10,5), RATE(   8,4), RATE(   6,3),
        RATE(   5,5), RATE(   4,4), RATE(   3,3),
                      RATE(   2,4),
 
}

initial_regs

uint8_t const initial_regs[Spc_Dsp::register_count]

static

Initial value:

                                   =
{
        0x45,0x8B,0x5A,0x9A,0xE4,0x82,0x1B,0x78,0x00,0x00,0xAA,0x96,0x89,0x0E,0xE0,0x80,
        0x2A,0x49,0x3D,0xBA,0x14,0xA0,0xAC,0xC5,0x00,0x00,0x51,0xBB,0x9C,0x4E,0x7B,0xFF,
        0xF4,0xFD,0x57,0x32,0x37,0xD9,0x42,0x22,0x00,0x00,0x5B,0x3C,0x9F,0x1B,0x87,0x9A,
        0x6F,0x27,0xAF,0x7B,0xE5,0x68,0x0A,0xD9,0x00,0x00,0x9A,0xC5,0x9C,0x4E,0x7B,0xFF,
        0xEA,0x21,0x78,0x4F,0xDD,0xED,0x24,0x14,0x00,0x00,0x77,0xB1,0xD1,0x36,0xC1,0x67,
        0x52,0x57,0x46,0x3D,0x59,0xF4,0x87,0xA4,0x00,0x00,0x7E,0x44,0x9C,0x4E,0x7B,0xFF,
        0x75,0xF5,0x06,0x97,0x10,0xC3,0x24,0xBB,0x00,0x00,0x7B,0x7A,0xE0,0x60,0x12,0x0F,
        0xF7,0x74,0x1C,0xE5,0x39,0x3D,0x73,0xC1,0x00,0x00,0x7A,0xB3,0xFF,0x4E,0x7B,0xFF
}

interleved_gauss

short const interleved_gauss[512]

static