emul/pico-zxspectrum
emul/pico-zxspectrum
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Better I2S audio

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This commit is contained in:
Phil 2024-12-11 19:50:00 +00:00
parent fc03cac998
commit 870ed781ca
1 changed files with 5 additions and 4 deletions
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9
src/ZxSpectrumAudio.cpp
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@ -286,10 +286,11 @@ void __not_in_flash_func(zxSpectrumAudioHandler)(uint32_t vA, uint32_t vB, uint3
ll = rr = 0;
}
else {
uint32_t l = (((vA << 1) + vB + s) << 4);
uint32_t r = (((vC << 1) + vB + s) << 4);
ll = (__mul_instruction(_vol, l) >> 8) & 0xffff;
rr = (__mul_instruction(_vol, r) >> 8) & 0xffff;
const uint32_t l = (vA << 1) + vB + s + 128;
const uint32_t r = (vC << 1) + vB + s + 128;
const uint32_t v = _vol << 4;
ll = (__mul_instruction(v, l) >> 8) & 0xffff;
rr = (__mul_instruction(v, r) >> 8) & 0xffff;
}
#if defined(PICO_HDMI_AUDIO)
audio_sample_t *audio_ptr = get_write_pointer(&dvi0.audio_ring);