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Quick fix to the polynomials.

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This commit is contained in:
Thomas Harte 2016-06-02 19:56:02 -04:00
parent 253e5a4203
commit 7aac306a12
1 changed files with 4 additions and 6 deletions
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10
Machines/Atari2600/Atari2600.cpp
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@ -798,9 +798,9 @@ void Machine::synchronise()
Atari2600::Speaker::Speaker()
{
_poly4_counter[0] = _poly4_counter[1] =
_poly5_counter[0] = _poly5_counter[1] =
_poly9_counter[0] = _poly9_counter[1] = ~0;
_poly4_counter[0] = _poly4_counter[1] = 0x00f;
_poly5_counter[0] = _poly5_counter[1] = 0x01f;
_poly9_counter[0] = _poly9_counter[1] = 0x1ff;
}
Atari2600::Speaker::~Speaker()
@ -821,13 +821,11 @@ void Atari2600::Speaker::set_divider(int channel, uint8_t divider)
void Atari2600::Speaker::set_control(int channel, uint8_t control)
{
_control[channel] = control & 0xf;
// _shift_counter[channel] = ~0;
// printf("%d\n", _control[channel]);
}
#define advance_poly4(c) _poly4_counter[channel] = (_poly4_counter[channel] >> 1) | (((_poly4_counter[channel] << 3) ^ (_poly4_counter[channel] << 2))&0x008)
#define advance_poly5(c) _poly5_counter[channel] = (_poly5_counter[channel] >> 1) | (((_poly5_counter[channel] << 4) ^ (_poly5_counter[channel] << 2))&0x010)
#define advance_poly9(c) _poly9_counter[channel] = (_poly9_counter[channel] >> 1) | (((_poly9_counter[channel] << 4) ^ (_poly9_counter[channel] << 8))&0x200)
#define advance_poly9(c) _poly9_counter[channel] = (_poly9_counter[channel] >> 1) | (((_poly9_counter[channel] << 4) ^ (_poly9_counter[channel] << 8))&0x100)
void Atari2600::Speaker::get_samples(unsigned int number_of_samples, int16_t *target)