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Fixed native DSD (lower word of MACC ignored if sample depth <= 24 bits). Native DSD needs 32 bits.

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Ross Owen
2014-01-18 23:41:22 +00:00
parent a883b4fbdb
commit 48d73c429a
1 changed files with 3 additions and 2 deletions
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5
module_usb_audio/usb_buffer/decouple.xc
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@@ -352,8 +352,9 @@ __builtin_unreachable();
asm("ldw %0, %1[%2]":"=r"(mult):"r"(p_multOut),"r"(i));
{h, l} = macs(mult, sample, 0, 0);
h <<= 3;
#if (SAMPLE_BIT_RESOLUTION_HS > 24) || (SAMPLE_BIT_RESOLUTION_FS > 24)
h |= (l >>29)& 0x7; // Note this step is not required if we assume sample depth is 24bit (rather than 32bit)
#if (SAMPLE_BIT_RESOLUTION_HS > 24) || (SAMPLE_BIT_RESOLUTION_FS > 24) || defined(NATIVE_DSD)
h |= (l >>29)& 0x7; // Note: This step is not required if we assume sample depth is 24bit (rather than 32bit)
// Note: We need all 32bits for Native DSD
#endif
outuint(c_mix_out, h);
#else