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feat(cam): migrate noise generation from xorshift64 to xorshift128

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- Replace NOISE_GEN_BITS/NOISE_SAMPLE_BITS parameters with unified NOISE_BITS
- Use xorshift128 (random128) instead of xorshift64 for PRNG
- Add flip_mask_next combinational helper for single-cycle mask computation
- Add random_enable signal to advance PRNG only on accepted noisy writes
- Simplify FSM by removing mask_group_idx counter
- Update parameter validation: GROUP_BITS (= HASH_BITS/NOISE_BITS) must equal 64
- Update ref_model.py and tests to match new seed convention: {seed, seed}
- Update Makefile and sweep_noise.py with renamed parameters
This commit is contained in:
SikongJueluo
2026-05-05 19:30:51 +08:00
parent 0dd01fb1b7
commit cbafc4524e
8 changed files with 178 additions and 152 deletions
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2
.safety-net.json
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@@ -18,7 +18,7 @@
"-h",
"-v"
],
"reason": "Local Environment is not avaiable. Please use \"just remote <cmd>\" to run commands in the remote docker. And remember to run \"just upload\" before run commands in the remote docker."
"reason": "Local Environment is not avaiable. Please use \"just remote <cmd>\" to run commands in the remote docker. "
},
{
"name": "block-uv-sync",