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810 B
810 B
NIAnalyzer
Programmable NIA analyzer and debugger
Receives debug bus (NIA, val, advancing, count, tag bits) and counts various events:
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compare NIA vs all block specs (start/end) to match one or more blocks, or none (also counted)
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count 'advancing' (count is for multiple completions)
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could count 'valid and not advancing' cycles (latency); may only make sense for single ops
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tag bits could specify b/alu/rot/ld/st/spec/etc. or other info (icmiss, dcmiss, stall, byps, ...)
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could also be able to generate signal(s) based on events (stall/interrupt core when full), event seen, etc.
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gen-configurable
- nia width, number of buckets, ...
- local bram size
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csr-configurable
- buckets def
- ctls (start/stop/rst/...)
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wb interface to connect to uart/eth/mem