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86 commits 10 branches 2 tags 508 KiB
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15 commits

Author SHA1 Message Date
Ahmet Inan
00246f2a69 skip write disable code if no repeat is necessary 2019-09-30 12:44:13 +02:00
Ahmet Inan
bd3bf1d277 use do while instead of for loop 2019-09-29 22:25:55 +02:00
Ahmet Inan
65863e76b6 repeat layers with DDSMs to resolve write conflicts 
Idea taken from:

HIGH-SPEED CONFLICT-FREE LAYERED LDPC DECODER FOR THE DVB-S2, -T2 AND -C2 STANDARDS
By Cédric Marchand, Laura Conde-Canencia and Emmanuel Boutillon - 2013
 2019-09-29 13:06:23 +02:00
Ahmet Inan
488a8cbe2b keep locations sorted by offset per layer 2019-09-29 10:06:14 +02:00
Ahmet Inan
02d5b5f12c keep word offset and shift paired 2019-09-29 10:02:01 +02:00
Ahmet Inan
a61a7d05cf step pointers after updating at the end 2019-09-28 23:50:34 +02:00
Ahmet Inan
969c43f016 use horizontal rotation helper 2019-09-24 00:07:14 +02:00
Ahmet Inan
a10cc6afcb disable OMS code path if BETA is zero 2019-09-23 14:14:53 +02:00
Ahmet Inan
e7dbd7400f added self correcting update of outgoing values 2019-09-23 13:54:23 +02:00
Ahmet Inan
974c4c582d clamp outgoing values before adding 2019-09-23 13:37:15 +02:00
Ahmet Inan
8f5d8d42ae renamed finalp() to cnp() and changed args 2019-09-23 13:07:38 +02:00
Ahmet Inan
762c18d234 positions array only needed for initialization 2019-09-23 12:45:00 +02:00
Ahmet Inan
8718380786 use exact size for number of positions 2019-09-23 12:44:03 +02:00
Ahmet Inan
717d482822 shuffle codeword for SIMD aligned memory access 
Idea taken from:

Low cost LDPC decoder for DVB-S2
by John Dielissen, Andries Hekstra and Vincent Berg - 2006
 2019-09-23 12:00:06 +02:00
Ahmet Inan
b41799c84d added LDPC decoder version with fully computed LUT 2018-12-16 09:42:02 +01:00