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authorPavel V. Shatov (Meister) <meisterpaul1@yandex.ru>2017-07-13 21:38:53 +0300
committerPavel V. Shatov (Meister) <meisterpaul1@yandex.ru>2017-07-13 21:38:53 +0300
commit72a67f04a21ba4006c7b5bf38e01a3aa6592740f (patch)
tree6b5a90a9dc683bbe7c91e09a2f20ea8e462e5995 /src/rtl/util
parent71b75290bf2ade9a4022bad93dc80bfb77f87f40 (diff)
Systolic multiplier simplified a bit:
* passes testbench tests again * this time synthesizes fine (without major issues) List of things that need polishing in the future: * Parallelized operand loader can be reduced by a factor of 3 to only store one operand at a time: it currently stores B, N_COEFF and N. After B is consumed, it can be overwritten with AB, N_COEFF can be loaded sequentially the same way A is loaded. After that loader can be filled with Q while N will be loaded sequentially. * Turns out QN block memory is not needed at all. After we obtain the next word of QN, we immediately calculate SN. After that QN can be discarded, no need to store it. * Currently there are two wide memories T and PE_C_OUT. XST throws weird warnings about multi-port RAM before finally deciding to implement it using flip-flop. Those memories should be turned into FIFOs to simplify the design and not confuse XST.
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