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56 lines
901 B
56 lines
901 B
9 years ago
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#include "reSID.h"
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#include <AudioStream.h>
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#define OVERSAMPLE 24
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static SID sid;
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void AudioPlaySID::begin(void)
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{
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this->reset();
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sid.set_sampling_parameters(OVERSAMPLE * 44117, SAMPLE_FAST, 44117);
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//sid.set_chip_model(MOS6581);
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sid.set_chip_model(MOS8580);
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playing = true;
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}
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void AudioPlaySID::reset(void)
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{
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sid.reset();
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}
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void AudioPlaySID::stop(void)
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{
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__disable_irq();
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playing = false;
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__enable_irq();
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}
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void AudioPlaySID::setreg(int ofs, int val) {
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sid.write(ofs, val);
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}
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void AudioPlaySID::update(void) {
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unsigned int i, n;
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audio_block_t *block;
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static cycle_count delta_t;
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// only update if we're playing
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if (!playing) return;
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// allocate the audio blocks to transmit
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block = allocate();
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if (block == NULL) return;
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for (i=0; i< AUDIO_BLOCK_SAMPLES; i++) {
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sid.clock(OVERSAMPLE);
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block->data[i] = sid.output();
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}
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transmit(block);
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release(block);
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}
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