public nes_mmc5()
{
cpu = null;
SetClock(DEFAULT_CLOCK);
SetRate(DEFAULT_RATE);
option[(int)OPT.NONLINEAR_MIXER] = 1; //true;
option[(int)OPT.PHASE_REFRESH] = 1; //true;
frame_sequence_count = 0;
// square nonlinear mix, same as 2A03
square_table[0] = 0;
for (int i = 1; i < 32; i++)
{
square_table[i] = (Int32)((8192.0 * 95.88) / (8128.0 / i + 100));
}
// 2A03 style nonlinear pcm mix with double the bits
//pcm_table[0] = 0;
//INT32 wd = 22638;
//for(int d=1;d<256; ++d)
// pcm_table[d] = (INT32)((8192.0*159.79)/(100.0+1.0/((double)d/wd)));
// linear pcm mix (actual hardware seems closer to this)
pcm_table[0] = 0;
double pcm_scale = 32.0;
for (int d = 1; d < 256; ++d)
{
pcm_table[d] = (Int32)((double)(d) * pcm_scale);
}
// stereo mix
for (int c = 0; c < 2; ++c)
{
for (int t = 0; t < 3; ++t)
{
sm[c][t] = 128;
}
}
}
// pcm read mode requires CPU read access
public void SetCPU(km6502 cpu_)
{
cpu = cpu_;
}
