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added self correcting update of outgoing values

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This commit is contained in:
Ahmet Inan 2019-09-23 13:54:23 +02:00
commit e7dbd7400f
2 changed files with 12 additions and 0 deletions
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6
ldpc_decoder.hh
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@ -86,6 +86,10 @@ class LDPCDecoder
for (int i = 0; i < cnt; ++i)
out[i] = vsign(other(mags[i], mins[0], mins[1]), mine(signs, inp[i]));
}
static TYPE selfcorr(TYPE a, TYPE b)
{
return vreinterpret<TYPE>(vand(vmask(b), vorr(vceqz(a), veor(vcgtz(a), vcltz(b)))));
}
static TYPE rotate(TYPE a, int s)
{
if (s < 0)
@ -172,6 +176,8 @@ class LDPCDecoder
cnp(out, inp, deg);
for (int d = 0; d < deg; ++d)
out[d] = vclamp(out[d], -32, 31);
for (int d = 0; d < deg; ++d)
out[d] = selfcorr(bl[d], out[d]);
for (int d = 0; d < deg; ++d)
*bl++ = out[d];
for (int c = 0; c < cnt; ++c)

6
ldpc_decoder2.hh
View file

@ -88,6 +88,10 @@ class LDPCDecoder
for (int i = 0; i < cnt; ++i)
out[i] = vsign(other(mags[i], mins[0], mins[1]), mine(signs, inp[i]));
}
static TYPE selfcorr(TYPE a, TYPE b)
{
return vreinterpret<TYPE>(vand(vmask(b), vorr(vceqz(a), veor(vcgtz(a), vcltz(b)))));
}
static TYPE rotate(TYPE a, int s)
{
if (s < 0)
@ -168,6 +172,8 @@ class LDPCDecoder
cnp(out, inp, deg);
for (int d = 0; d < deg; ++d)
out[d] = vclamp(out[d], -32, 31);
for (int d = 0; d < deg; ++d)
out[d] = selfcorr(bl[d], out[d]);
for (int d = 0; d < deg; ++d)
*bl++ = out[d];
for (int c = 0; c < cnt; ++c)