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DMA: Template transfer functions

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~20% speedup in FMV playback on a Ryzen 9 7950X3D. CPUs hate branches.
This commit is contained in:
Stenzek
2023-12-19 00:55:04 +10:00
parent e736998f1e
commit f5ddd7ba32
3 changed files with 75 additions and 31 deletions
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2
src/core/spu.cpp
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@ -1445,7 +1445,7 @@ void SPU::DMAWrite(const u32* words, u32 word_count)
const u32 words_to_transfer = std::min(s_transfer_fifo.GetSpace(), halfword_count);
s_transfer_fifo.PushRange(halfwords, words_to_transfer);
if (words_to_transfer != halfword_count)
if (words_to_transfer != halfword_count) [[unlikely]]
Log_WarningPrintf("Transfer FIFO overflow, dropping %u halfwords", halfword_count - words_to_transfer);
UpdateDMARequest();